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Diffstat (limited to 'fs/ceph/addr.c')
-rw-r--r--fs/ceph/addr.c2655
1 files changed, 1546 insertions, 1109 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 01ad09733ac7..63b75d214210 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -4,19 +4,22 @@
#include <linux/backing-dev.h>
#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/swap.h>
#include <linux/pagemap.h>
-#include <linux/writeback.h> /* generic_writepages */
#include <linux/slab.h>
#include <linux/pagevec.h>
#include <linux/task_io_accounting_ops.h>
#include <linux/signal.h>
#include <linux/iversion.h>
#include <linux/ktime.h>
+#include <linux/netfs.h>
+#include <trace/events/netfs.h>
#include "super.h"
#include "mds_client.h"
#include "cache.h"
#include "metric.h"
+#include "crypto.h"
#include <linux/ceph/osd_client.h>
#include <linux/ceph/striper.h>
@@ -61,6 +64,9 @@
(CONGESTION_ON_THRESH(congestion_kb) - \
(CONGESTION_ON_THRESH(congestion_kb) >> 2))
+static int ceph_netfs_check_write_begin(struct file *file, loff_t pos, unsigned int len,
+ struct folio **foliop, void **_fsdata);
+
static inline struct ceph_snap_context *page_snap_context(struct page *page)
{
if (PagePrivate(page))
@@ -72,30 +78,27 @@ static inline struct ceph_snap_context *page_snap_context(struct page *page)
* Dirty a page. Optimistically adjust accounting, on the assumption
* that we won't race with invalidate. If we do, readjust.
*/
-static int ceph_set_page_dirty(struct page *page)
+static bool ceph_dirty_folio(struct address_space *mapping, struct folio *folio)
{
- struct address_space *mapping = page->mapping;
- struct inode *inode;
+ struct inode *inode = mapping->host;
+ struct ceph_client *cl = ceph_inode_to_client(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_inode_info *ci;
struct ceph_snap_context *snapc;
- int ret;
-
- if (unlikely(!mapping))
- return !TestSetPageDirty(page);
- if (PageDirty(page)) {
- dout("%p set_page_dirty %p idx %lu -- already dirty\n",
- mapping->host, page, page->index);
- BUG_ON(!PagePrivate(page));
- return 0;
+ if (folio_test_dirty(folio)) {
+ doutc(cl, "%llx.%llx %p idx %lu -- already dirty\n",
+ ceph_vinop(inode), folio, folio->index);
+ VM_BUG_ON_FOLIO(!folio_test_private(folio), folio);
+ return false;
}
- inode = mapping->host;
+ atomic64_inc(&mdsc->dirty_folios);
+
ci = ceph_inode(inode);
/* dirty the head */
spin_lock(&ci->i_ceph_lock);
- BUG_ON(ci->i_wr_ref == 0); // caller should hold Fw reference
if (__ceph_have_pending_cap_snap(ci)) {
struct ceph_cap_snap *capsnap =
list_last_entry(&ci->i_cap_snaps,
@@ -111,416 +114,467 @@ static int ceph_set_page_dirty(struct page *page)
if (ci->i_wrbuffer_ref == 0)
ihold(inode);
++ci->i_wrbuffer_ref;
- dout("%p set_page_dirty %p idx %lu head %d/%d -> %d/%d "
- "snapc %p seq %lld (%d snaps)\n",
- mapping->host, page, page->index,
- ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1,
- ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
- snapc, snapc->seq, snapc->num_snaps);
+ doutc(cl, "%llx.%llx %p idx %lu head %d/%d -> %d/%d "
+ "snapc %p seq %lld (%d snaps)\n",
+ ceph_vinop(inode), folio, folio->index,
+ ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref_head-1,
+ ci->i_wrbuffer_ref, ci->i_wrbuffer_ref_head,
+ snapc, snapc->seq, snapc->num_snaps);
spin_unlock(&ci->i_ceph_lock);
/*
- * Reference snap context in page->private. Also set
- * PagePrivate so that we get invalidatepage callback.
+ * Reference snap context in folio->private. Also set
+ * PagePrivate so that we get invalidate_folio callback.
*/
- BUG_ON(PagePrivate(page));
- page->private = (unsigned long)snapc;
- SetPagePrivate(page);
+ VM_WARN_ON_FOLIO(folio->private, folio);
+ folio_attach_private(folio, snapc);
- ret = __set_page_dirty_nobuffers(page);
- WARN_ON(!PageLocked(page));
- WARN_ON(!page->mapping);
-
- return ret;
+ return ceph_fscache_dirty_folio(mapping, folio);
}
/*
- * If we are truncating the full page (i.e. offset == 0), adjust the
- * dirty page counters appropriately. Only called if there is private
- * data on the page.
+ * If we are truncating the full folio (i.e. offset == 0), adjust the
+ * dirty folio counters appropriately. Only called if there is private
+ * data on the folio.
*/
-static void ceph_invalidatepage(struct page *page, unsigned int offset,
- unsigned int length)
+static void ceph_invalidate_folio(struct folio *folio, size_t offset,
+ size_t length)
{
- struct inode *inode;
- struct ceph_inode_info *ci;
- struct ceph_snap_context *snapc = page_snap_context(page);
+ struct inode *inode = folio->mapping->host;
+ struct ceph_client *cl = ceph_inode_to_client(inode);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_snap_context *snapc;
- inode = page->mapping->host;
- ci = ceph_inode(inode);
- if (offset != 0 || length != PAGE_SIZE) {
- dout("%p invalidatepage %p idx %lu partial dirty page %u~%u\n",
- inode, page, page->index, offset, length);
+ if (offset != 0 || length != folio_size(folio)) {
+ doutc(cl, "%llx.%llx idx %lu partial dirty page %zu~%zu\n",
+ ceph_vinop(inode), folio->index, offset, length);
return;
}
- ceph_invalidate_fscache_page(inode, page);
+ WARN_ON(!folio_test_locked(folio));
+ if (folio_test_private(folio)) {
+ doutc(cl, "%llx.%llx idx %lu full dirty page\n",
+ ceph_vinop(inode), folio->index);
+
+ snapc = folio_detach_private(folio);
+ ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
+ ceph_put_snap_context(snapc);
+ }
+
+ netfs_invalidate_folio(folio, offset, length);
+}
+
+static void ceph_netfs_expand_readahead(struct netfs_io_request *rreq)
+{
+ struct inode *inode = rreq->inode;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_file_layout *lo = &ci->i_layout;
+ unsigned long max_pages = inode->i_sb->s_bdi->ra_pages;
+ loff_t end = rreq->start + rreq->len, new_end;
+ struct ceph_netfs_request_data *priv = rreq->netfs_priv;
+ unsigned long max_len;
+ u32 blockoff;
+
+ if (priv) {
+ /* Readahead is disabled by posix_fadvise POSIX_FADV_RANDOM */
+ if (priv->file_ra_disabled)
+ max_pages = 0;
+ else
+ max_pages = priv->file_ra_pages;
+
+ }
- WARN_ON(!PageLocked(page));
- if (!PagePrivate(page))
+ /* Readahead is disabled */
+ if (!max_pages)
return;
- dout("%p invalidatepage %p idx %lu full dirty page\n",
- inode, page, page->index);
+ max_len = max_pages << PAGE_SHIFT;
- ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
- ceph_put_snap_context(snapc);
- page->private = 0;
- ClearPagePrivate(page);
+ /*
+ * Try to expand the length forward by rounding up it to the next
+ * block, but do not exceed the file size, unless the original
+ * request already exceeds it.
+ */
+ new_end = umin(round_up(end, lo->stripe_unit), rreq->i_size);
+ if (new_end > end && new_end <= rreq->start + max_len)
+ rreq->len = new_end - rreq->start;
+
+ /* Try to expand the start downward */
+ div_u64_rem(rreq->start, lo->stripe_unit, &blockoff);
+ if (rreq->len + blockoff <= max_len) {
+ rreq->start -= blockoff;
+ rreq->len += blockoff;
+ }
}
-static int ceph_releasepage(struct page *page, gfp_t g)
+static void finish_netfs_read(struct ceph_osd_request *req)
{
- dout("%p releasepage %p idx %lu (%sdirty)\n", page->mapping->host,
- page, page->index, PageDirty(page) ? "" : "not ");
+ struct inode *inode = req->r_inode;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_osd_data *osd_data = osd_req_op_extent_osd_data(req, 0);
+ struct netfs_io_subrequest *subreq = req->r_priv;
+ struct ceph_osd_req_op *op = &req->r_ops[0];
+ int err = req->r_result;
+ bool sparse = (op->op == CEPH_OSD_OP_SPARSE_READ);
+
+ ceph_update_read_metrics(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, osd_data->length, err);
+
+ doutc(cl, "result %d subreq->len=%zu i_size=%lld\n", req->r_result,
+ subreq->len, i_size_read(req->r_inode));
+
+ /* no object means success but no data */
+ if (err == -ENOENT) {
+ __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ __set_bit(NETFS_SREQ_MADE_PROGRESS, &subreq->flags);
+ err = 0;
+ } else if (err == -EBLOCKLISTED) {
+ fsc->blocklisted = true;
+ }
- /* Can we release the page from the cache? */
- if (!ceph_release_fscache_page(page, g))
- return 0;
+ if (err >= 0) {
+ if (sparse && err > 0)
+ err = ceph_sparse_ext_map_end(op);
+ if (err < subreq->len &&
+ subreq->rreq->origin != NETFS_UNBUFFERED_READ &&
+ subreq->rreq->origin != NETFS_DIO_READ)
+ __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ if (IS_ENCRYPTED(inode) && err > 0) {
+ err = ceph_fscrypt_decrypt_extents(inode,
+ osd_data->pages, subreq->start,
+ op->extent.sparse_ext,
+ op->extent.sparse_ext_cnt);
+ if (err > subreq->len)
+ err = subreq->len;
+ }
+ if (err > 0)
+ __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ }
- return !PagePrivate(page);
+ if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
+ ceph_put_page_vector(osd_data->pages,
+ calc_pages_for(osd_data->alignment,
+ osd_data->length), false);
+ }
+ if (err > 0) {
+ subreq->transferred = err;
+ err = 0;
+ }
+ subreq->error = err;
+ trace_netfs_sreq(subreq, netfs_sreq_trace_io_progress);
+ netfs_read_subreq_terminated(subreq);
+ iput(req->r_inode);
+ ceph_dec_osd_stopping_blocker(fsc->mdsc);
}
-/*
- * Read some contiguous pages. If we cross a stripe boundary, shorten
- * *plen. Return number of bytes read, or error.
- */
-static int ceph_sync_readpages(struct ceph_fs_client *fsc,
- struct ceph_vino vino,
- struct ceph_file_layout *layout,
- u64 off, u64 *plen,
- u32 truncate_seq, u64 truncate_size,
- struct page **pages, int num_pages,
- int page_align)
+static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
{
- struct ceph_osd_client *osdc = &fsc->client->osdc;
- struct ceph_osd_request *req;
- int rc = 0;
+ struct netfs_io_request *rreq = subreq->rreq;
+ struct inode *inode = rreq->inode;
+ struct ceph_mds_reply_info_parsed *rinfo;
+ struct ceph_mds_reply_info_in *iinfo;
+ struct ceph_mds_request *req;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ ssize_t err = 0;
+ size_t len;
+ int mode;
- dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino,
- vino.snap, off, *plen);
- req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1,
- CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
- NULL, truncate_seq, truncate_size,
- false);
- if (IS_ERR(req))
- return PTR_ERR(req);
+ if (rreq->origin != NETFS_UNBUFFERED_READ &&
+ rreq->origin != NETFS_DIO_READ)
+ __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ __clear_bit(NETFS_SREQ_COPY_TO_CACHE, &subreq->flags);
- /* it may be a short read due to an object boundary */
- osd_req_op_extent_osd_data_pages(req, 0,
- pages, *plen, page_align, false, false);
+ if (subreq->start >= inode->i_size)
+ goto out;
+
+ /* We need to fetch the inline data. */
+ mode = ceph_try_to_choose_auth_mds(inode, CEPH_STAT_CAP_INLINE_DATA);
+ req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_GETATTR, mode);
+ if (IS_ERR(req)) {
+ err = PTR_ERR(req);
+ goto out;
+ }
+ req->r_ino1 = ci->i_vino;
+ req->r_args.getattr.mask = cpu_to_le32(CEPH_STAT_CAP_INLINE_DATA);
+ req->r_num_caps = 2;
- dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
- off, *plen, *plen, page_align);
+ trace_netfs_sreq(subreq, netfs_sreq_trace_submit);
+ err = ceph_mdsc_do_request(mdsc, NULL, req);
+ if (err < 0)
+ goto out;
- rc = ceph_osdc_start_request(osdc, req, false);
- if (!rc)
- rc = ceph_osdc_wait_request(osdc, req);
+ rinfo = &req->r_reply_info;
+ iinfo = &rinfo->targeti;
+ if (iinfo->inline_version == CEPH_INLINE_NONE) {
+ /* The data got uninlined */
+ ceph_mdsc_put_request(req);
+ return false;
+ }
- ceph_update_read_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
+ len = min_t(size_t, iinfo->inline_len - subreq->start, subreq->len);
+ err = copy_to_iter(iinfo->inline_data + subreq->start, len, &subreq->io_iter);
+ if (err == 0) {
+ err = -EFAULT;
+ } else {
+ subreq->transferred += err;
+ err = 0;
+ }
- ceph_osdc_put_request(req);
- dout("readpages result %d\n", rc);
- return rc;
+ ceph_mdsc_put_request(req);
+out:
+ subreq->error = err;
+ trace_netfs_sreq(subreq, netfs_sreq_trace_io_progress);
+ netfs_read_subreq_terminated(subreq);
+ return true;
}
-/*
- * read a single page, without unlocking it.
- */
-static int ceph_do_readpage(struct file *filp, struct page *page)
+static int ceph_netfs_prepare_read(struct netfs_io_subrequest *subreq)
{
- struct inode *inode = file_inode(filp);
+ struct netfs_io_request *rreq = subreq->rreq;
+ struct inode *inode = rreq->inode;
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- int err = 0;
- u64 off = page_offset(page);
- u64 len = PAGE_SIZE;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ u64 objno, objoff;
+ u32 xlen;
+
+ /* Truncate the extent at the end of the current block */
+ ceph_calc_file_object_mapping(&ci->i_layout, subreq->start, subreq->len,
+ &objno, &objoff, &xlen);
+ rreq->io_streams[0].sreq_max_len = umin(xlen, fsc->mount_options->rsize);
+ return 0;
+}
- if (off >= i_size_read(inode)) {
- zero_user_segment(page, 0, PAGE_SIZE);
- SetPageUptodate(page);
- return 0;
+static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq)
+{
+ struct netfs_io_request *rreq = subreq->rreq;
+ struct inode *inode = rreq->inode;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_osd_request *req = NULL;
+ struct ceph_vino vino = ceph_vino(inode);
+ int err;
+ u64 len;
+ bool sparse = IS_ENCRYPTED(inode) || ceph_test_mount_opt(fsc, SPARSEREAD);
+ u64 off = subreq->start;
+ int extent_cnt;
+
+ if (ceph_inode_is_shutdown(inode)) {
+ err = -EIO;
+ goto out;
+ }
+
+ if (ceph_has_inline_data(ci) && ceph_netfs_issue_op_inline(subreq))
+ return;
+
+ // TODO: This rounding here is slightly dodgy. It *should* work, for
+ // now, as the cache only deals in blocks that are a multiple of
+ // PAGE_SIZE and fscrypt blocks are at most PAGE_SIZE. What needs to
+ // happen is for the fscrypt driving to be moved into netfslib and the
+ // data in the cache also to be stored encrypted.
+ len = subreq->len;
+ ceph_fscrypt_adjust_off_and_len(inode, &off, &len);
+
+ req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout, vino,
+ off, &len, 0, 1, sparse ? CEPH_OSD_OP_SPARSE_READ : CEPH_OSD_OP_READ,
+ CEPH_OSD_FLAG_READ, NULL, ci->i_truncate_seq,
+ ci->i_truncate_size, false);
+ if (IS_ERR(req)) {
+ err = PTR_ERR(req);
+ req = NULL;
+ goto out;
+ }
+
+ if (sparse) {
+ extent_cnt = __ceph_sparse_read_ext_count(inode, len);
+ err = ceph_alloc_sparse_ext_map(&req->r_ops[0], extent_cnt);
+ if (err)
+ goto out;
}
- if (ci->i_inline_version != CEPH_INLINE_NONE) {
+ doutc(cl, "%llx.%llx pos=%llu orig_len=%zu len=%llu\n",
+ ceph_vinop(inode), subreq->start, subreq->len, len);
+
+ /*
+ * FIXME: For now, use CEPH_OSD_DATA_TYPE_PAGES instead of _ITER for
+ * encrypted inodes. We'd need infrastructure that handles an iov_iter
+ * instead of page arrays, and we don't have that as of yet. Once the
+ * dust settles on the write helpers and encrypt/decrypt routines for
+ * netfs, we should be able to rework this.
+ */
+ if (IS_ENCRYPTED(inode)) {
+ struct page **pages;
+ size_t page_off;
+
/*
- * Uptodate inline data should have been added
- * into page cache while getting Fcr caps.
+ * FIXME: io_iter.count needs to be corrected to aligned
+ * length. Otherwise, iov_iter_get_pages_alloc2() operates
+ * with the initial unaligned length value. As a result,
+ * ceph_msg_data_cursor_init() triggers BUG_ON() in the case
+ * if msg->sparse_read_total > msg->data_length.
*/
- if (off == 0)
- return -EINVAL;
- zero_user_segment(page, 0, PAGE_SIZE);
- SetPageUptodate(page);
- return 0;
- }
+ subreq->io_iter.count = len;
- err = ceph_readpage_from_fscache(inode, page);
- if (err == 0)
- return -EINPROGRESS;
-
- dout("readpage inode %p file %p page %p index %lu\n",
- inode, filp, page, page->index);
- err = ceph_sync_readpages(fsc, ceph_vino(inode),
- &ci->i_layout, off, &len,
- ci->i_truncate_seq, ci->i_truncate_size,
- &page, 1, 0);
- if (err == -ENOENT)
+ err = iov_iter_get_pages_alloc2(&subreq->io_iter, &pages, len, &page_off);
+ if (err < 0) {
+ doutc(cl, "%llx.%llx failed to allocate pages, %d\n",
+ ceph_vinop(inode), err);
+ goto out;
+ }
+
+ /* should always give us a page-aligned read */
+ WARN_ON_ONCE(page_off);
+ len = err;
err = 0;
- if (err < 0) {
- SetPageError(page);
- ceph_fscache_readpage_cancel(inode, page);
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
+
+ osd_req_op_extent_osd_data_pages(req, 0, pages, len, 0, false,
+ false);
+ } else {
+ osd_req_op_extent_osd_iter(req, 0, &subreq->io_iter);
+ }
+ if (!ceph_inc_osd_stopping_blocker(fsc->mdsc)) {
+ err = -EIO;
goto out;
}
- if (err < PAGE_SIZE)
- /* zero fill remainder of page */
- zero_user_segment(page, err, PAGE_SIZE);
- else
- flush_dcache_page(page);
-
- SetPageUptodate(page);
- ceph_readpage_to_fscache(inode, page);
+ req->r_callback = finish_netfs_read;
+ req->r_priv = subreq;
+ req->r_inode = inode;
+ ihold(inode);
+ trace_netfs_sreq(subreq, netfs_sreq_trace_submit);
+ ceph_osdc_start_request(req->r_osdc, req);
out:
- return err < 0 ? err : 0;
-}
-
-static int ceph_readpage(struct file *filp, struct page *page)
-{
- int r = ceph_do_readpage(filp, page);
- if (r != -EINPROGRESS)
- unlock_page(page);
- else
- r = 0;
- return r;
+ ceph_osdc_put_request(req);
+ if (err) {
+ subreq->error = err;
+ netfs_read_subreq_terminated(subreq);
+ }
+ doutc(cl, "%llx.%llx result %d\n", ceph_vinop(inode), err);
}
-/*
- * Finish an async read(ahead) op.
- */
-static void finish_read(struct ceph_osd_request *req)
+static int ceph_init_request(struct netfs_io_request *rreq, struct file *file)
{
- struct inode *inode = req->r_inode;
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_osd_data *osd_data;
- int rc = req->r_result <= 0 ? req->r_result : 0;
- int bytes = req->r_result >= 0 ? req->r_result : 0;
- int num_pages;
- int i;
+ struct inode *inode = rreq->inode;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
+ int got = 0, want = CEPH_CAP_FILE_CACHE;
+ struct ceph_netfs_request_data *priv;
+ int ret = 0;
- dout("finish_read %p req %p rc %d bytes %d\n", inode, req, rc, bytes);
- if (rc == -EBLACKLISTED)
- ceph_inode_to_client(inode)->blacklisted = true;
+ /* [DEPRECATED] Use PG_private_2 to mark folio being written to the cache. */
+ __set_bit(NETFS_RREQ_USE_PGPRIV2, &rreq->flags);
- /* unlock all pages, zeroing any data we didn't read */
- osd_data = osd_req_op_extent_osd_data(req, 0);
- BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_PAGES);
- num_pages = calc_pages_for((u64)osd_data->alignment,
- (u64)osd_data->length);
- for (i = 0; i < num_pages; i++) {
- struct page *page = osd_data->pages[i];
-
- if (rc < 0 && rc != -ENOENT) {
- ceph_fscache_readpage_cancel(inode, page);
- goto unlock;
- }
- if (bytes < (int)PAGE_SIZE) {
- /* zero (remainder of) page */
- int s = bytes < 0 ? 0 : bytes;
- zero_user_segment(page, s, PAGE_SIZE);
- }
- dout("finish_read %p uptodate %p idx %lu\n", inode, page,
- page->index);
- flush_dcache_page(page);
- SetPageUptodate(page);
- ceph_readpage_to_fscache(inode, page);
-unlock:
- unlock_page(page);
- put_page(page);
- bytes -= PAGE_SIZE;
- }
+ if (rreq->origin != NETFS_READAHEAD)
+ return 0;
- ceph_update_read_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
+ priv = kzalloc(sizeof(*priv), GFP_NOFS);
+ if (!priv)
+ return -ENOMEM;
- kfree(osd_data->pages);
-}
+ if (file) {
+ struct ceph_rw_context *rw_ctx;
+ struct ceph_file_info *fi = file->private_data;
-/*
- * start an async read(ahead) operation. return nr_pages we submitted
- * a read for on success, or negative error code.
- */
-static int start_read(struct inode *inode, struct ceph_rw_context *rw_ctx,
- struct list_head *page_list, int max)
-{
- struct ceph_osd_client *osdc =
- &ceph_inode_to_client(inode)->client->osdc;
- struct ceph_inode_info *ci = ceph_inode(inode);
- struct page *page = lru_to_page(page_list);
- struct ceph_vino vino;
- struct ceph_osd_request *req;
- u64 off;
- u64 len;
- int i;
- struct page **pages;
- pgoff_t next_index;
- int nr_pages = 0;
- int got = 0;
- int ret = 0;
+ priv->file_ra_pages = file->f_ra.ra_pages;
+ priv->file_ra_disabled = file->f_mode & FMODE_RANDOM;
- if (!rw_ctx) {
- /* caller of readpages does not hold buffer and read caps
- * (fadvise, madvise and readahead cases) */
- int want = CEPH_CAP_FILE_CACHE;
- ret = ceph_try_get_caps(inode, CEPH_CAP_FILE_RD, want,
- true, &got);
- if (ret < 0) {
- dout("start_read %p, error getting cap\n", inode);
- } else if (!(got & want)) {
- dout("start_read %p, no cache cap\n", inode);
- ret = 0;
- }
- if (ret <= 0) {
- if (got)
- ceph_put_cap_refs(ci, got);
- while (!list_empty(page_list)) {
- page = lru_to_page(page_list);
- list_del(&page->lru);
- put_page(page);
- }
- return ret;
+ rw_ctx = ceph_find_rw_context(fi);
+ if (rw_ctx) {
+ rreq->netfs_priv = priv;
+ return 0;
}
}
- off = (u64) page_offset(page);
+ /*
+ * readahead callers do not necessarily hold Fcb caps
+ * (e.g. fadvise, madvise).
+ */
+ ret = ceph_try_get_caps(inode, CEPH_CAP_FILE_RD, want, true, &got);
+ if (ret < 0) {
+ doutc(cl, "%llx.%llx, error getting cap\n", ceph_vinop(inode));
+ goto out;
+ }
- /* count pages */
- next_index = page->index;
- list_for_each_entry_reverse(page, page_list, lru) {
- if (page->index != next_index)
- break;
- nr_pages++;
- next_index++;
- if (max && nr_pages == max)
- break;
+ if (!(got & want)) {
+ doutc(cl, "%llx.%llx, no cache cap\n", ceph_vinop(inode));
+ ret = -EACCES;
+ goto out;
}
- len = nr_pages << PAGE_SHIFT;
- dout("start_read %p nr_pages %d is %lld~%lld\n", inode, nr_pages,
- off, len);
- vino = ceph_vino(inode);
- req = ceph_osdc_new_request(osdc, &ci->i_layout, vino, off, &len,
- 0, 1, CEPH_OSD_OP_READ,
- CEPH_OSD_FLAG_READ, NULL,
- ci->i_truncate_seq, ci->i_truncate_size,
- false);
- if (IS_ERR(req)) {
- ret = PTR_ERR(req);
+ if (ret == 0) {
+ ret = -EACCES;
goto out;
}
- /* build page vector */
- nr_pages = calc_pages_for(0, len);
- pages = kmalloc_array(nr_pages, sizeof(*pages), GFP_KERNEL);
- if (!pages) {
- ret = -ENOMEM;
- goto out_put;
- }
- for (i = 0; i < nr_pages; ++i) {
- page = list_entry(page_list->prev, struct page, lru);
- BUG_ON(PageLocked(page));
- list_del(&page->lru);
+ priv->caps = got;
+ rreq->netfs_priv = priv;
+ rreq->io_streams[0].sreq_max_len = fsc->mount_options->rsize;
- dout("start_read %p adding %p idx %lu\n", inode, page,
- page->index);
- if (add_to_page_cache_lru(page, &inode->i_data, page->index,
- GFP_KERNEL)) {
- ceph_fscache_uncache_page(inode, page);
- put_page(page);
- dout("start_read %p add_to_page_cache failed %p\n",
- inode, page);
- nr_pages = i;
- if (nr_pages > 0) {
- len = nr_pages << PAGE_SHIFT;
- osd_req_op_extent_update(req, 0, len);
- break;
- }
- goto out_pages;
- }
- pages[i] = page;
+out:
+ if (ret < 0) {
+ if (got)
+ ceph_put_cap_refs(ceph_inode(inode), got);
+ kfree(priv);
}
- osd_req_op_extent_osd_data_pages(req, 0, pages, len, 0, false, false);
- req->r_callback = finish_read;
- req->r_inode = inode;
- dout("start_read %p starting %p %lld~%lld\n", inode, req, off, len);
- ret = ceph_osdc_start_request(osdc, req, false);
- if (ret < 0)
- goto out_pages;
- ceph_osdc_put_request(req);
+ return ret;
+}
- /* After adding locked pages to page cache, the inode holds cache cap.
- * So we can drop our cap refs. */
- if (got)
- ceph_put_cap_refs(ci, got);
+static void ceph_netfs_free_request(struct netfs_io_request *rreq)
+{
+ struct ceph_netfs_request_data *priv = rreq->netfs_priv;
- return nr_pages;
+ if (!priv)
+ return;
-out_pages:
- for (i = 0; i < nr_pages; ++i) {
- ceph_fscache_readpage_cancel(inode, pages[i]);
- unlock_page(pages[i]);
- }
- ceph_put_page_vector(pages, nr_pages, false);
-out_put:
- ceph_osdc_put_request(req);
-out:
- if (got)
- ceph_put_cap_refs(ci, got);
- return ret;
+ if (priv->caps)
+ ceph_put_cap_refs(ceph_inode(rreq->inode), priv->caps);
+ kfree(priv);
+ rreq->netfs_priv = NULL;
}
+const struct netfs_request_ops ceph_netfs_ops = {
+ .init_request = ceph_init_request,
+ .free_request = ceph_netfs_free_request,
+ .prepare_read = ceph_netfs_prepare_read,
+ .issue_read = ceph_netfs_issue_read,
+ .expand_readahead = ceph_netfs_expand_readahead,
+ .check_write_begin = ceph_netfs_check_write_begin,
+};
-/*
- * Read multiple pages. Leave pages we don't read + unlock in page_list;
- * the caller (VM) cleans them up.
- */
-static int ceph_readpages(struct file *file, struct address_space *mapping,
- struct list_head *page_list, unsigned nr_pages)
+#ifdef CONFIG_CEPH_FSCACHE
+static void ceph_set_page_fscache(struct page *page)
{
- struct inode *inode = file_inode(file);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_file_info *fi = file->private_data;
- struct ceph_rw_context *rw_ctx;
- int rc = 0;
- int max = 0;
+ folio_start_private_2(page_folio(page)); /* [DEPRECATED] */
+}
- if (ceph_inode(inode)->i_inline_version != CEPH_INLINE_NONE)
- return -EINVAL;
+static void ceph_fscache_write_terminated(void *priv, ssize_t error)
+{
+ struct inode *inode = priv;
- rc = ceph_readpages_from_fscache(mapping->host, mapping, page_list,
- &nr_pages);
+ if (IS_ERR_VALUE(error) && error != -ENOBUFS)
+ ceph_fscache_invalidate(inode, false);
+}
- if (rc == 0)
- goto out;
+static void ceph_fscache_write_to_cache(struct inode *inode, u64 off, u64 len, bool caching)
+{
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct fscache_cookie *cookie = ceph_fscache_cookie(ci);
- rw_ctx = ceph_find_rw_context(fi);
- max = fsc->mount_options->rsize >> PAGE_SHIFT;
- dout("readpages %p file %p ctx %p nr_pages %d max %d\n",
- inode, file, rw_ctx, nr_pages, max);
- while (!list_empty(page_list)) {
- rc = start_read(inode, rw_ctx, page_list, max);
- if (rc < 0)
- goto out;
- }
-out:
- ceph_fscache_readpages_cancel(inode, page_list);
+ fscache_write_to_cache(cookie, inode->i_mapping, off, len, i_size_read(inode),
+ ceph_fscache_write_terminated, inode, true, caching);
+}
+#else
+static inline void ceph_set_page_fscache(struct page *page)
+{
+}
- dout("readpages %p file %p ret %d\n", inode, file, rc);
- return rc;
+static inline void ceph_fscache_write_to_cache(struct inode *inode, u64 off, u64 len, bool caching)
+{
}
+#endif /* CONFIG_CEPH_FSCACHE */
struct ceph_writeback_ctl
{
@@ -528,7 +582,36 @@ struct ceph_writeback_ctl
u64 truncate_size;
u32 truncate_seq;
bool size_stable;
+
bool head_snapc;
+ struct ceph_snap_context *snapc;
+ struct ceph_snap_context *last_snapc;
+
+ bool done;
+ bool should_loop;
+ bool range_whole;
+ pgoff_t start_index;
+ pgoff_t index;
+ pgoff_t end;
+ xa_mark_t tag;
+
+ pgoff_t strip_unit_end;
+ unsigned int wsize;
+ unsigned int nr_folios;
+ unsigned int max_pages;
+ unsigned int locked_pages;
+
+ int op_idx;
+ int num_ops;
+ u64 offset;
+ u64 len;
+
+ struct folio_batch fbatch;
+ unsigned int processed_in_fbatch;
+
+ bool from_pool;
+ struct page **pages;
+ struct page **data_pages;
};
/*
@@ -540,13 +623,14 @@ get_oldest_context(struct inode *inode, struct ceph_writeback_ctl *ctl,
struct ceph_snap_context *page_snapc)
{
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_snap_context *snapc = NULL;
struct ceph_cap_snap *capsnap = NULL;
spin_lock(&ci->i_ceph_lock);
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
- dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap,
- capsnap->context, capsnap->dirty_pages);
+ doutc(cl, " capsnap %p snapc %p has %d dirty pages\n",
+ capsnap, capsnap->context, capsnap->dirty_pages);
if (!capsnap->dirty_pages)
continue;
@@ -578,8 +662,8 @@ get_oldest_context(struct inode *inode, struct ceph_writeback_ctl *ctl,
}
if (!snapc && ci->i_wrbuffer_ref_head) {
snapc = ceph_get_snap_context(ci->i_head_snapc);
- dout(" head snapc %p has %d dirty pages\n",
- snapc, ci->i_wrbuffer_ref_head);
+ doutc(cl, " head snapc %p has %d dirty pages\n", snapc,
+ ci->i_wrbuffer_ref_head);
if (ctl) {
ctl->i_size = i_size_read(inode);
ctl->truncate_size = ci->i_truncate_size;
@@ -596,10 +680,12 @@ static u64 get_writepages_data_length(struct inode *inode,
struct page *page, u64 start)
{
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_snap_context *snapc = page_snap_context(page);
+ struct ceph_snap_context *snapc;
struct ceph_cap_snap *capsnap = NULL;
u64 end = i_size_read(inode);
+ u64 ret;
+ snapc = page_snap_context(ceph_fscrypt_pagecache_page(page));
if (snapc != ci->i_head_snapc) {
bool found = false;
spin_lock(&ci->i_ceph_lock);
@@ -614,166 +700,167 @@ static u64 get_writepages_data_length(struct inode *inode,
spin_unlock(&ci->i_ceph_lock);
WARN_ON(!found);
}
- if (end > page_offset(page) + PAGE_SIZE)
- end = page_offset(page) + PAGE_SIZE;
- return end > start ? end - start : 0;
-}
-
-/*
- * do a synchronous write on N pages
- */
-static int ceph_sync_writepages(struct ceph_fs_client *fsc,
- struct ceph_vino vino,
- struct ceph_file_layout *layout,
- struct ceph_snap_context *snapc,
- u64 off, u64 len,
- u32 truncate_seq, u64 truncate_size,
- struct timespec64 *mtime,
- struct page **pages, int num_pages)
-{
- struct ceph_osd_client *osdc = &fsc->client->osdc;
- struct ceph_osd_request *req;
- int rc = 0;
- int page_align = off & ~PAGE_MASK;
-
- req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1,
- CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
- snapc, truncate_seq, truncate_size,
- true);
- if (IS_ERR(req))
- return PTR_ERR(req);
-
- /* it may be a short write due to an object boundary */
- osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align,
- false, false);
- dout("writepages %llu~%llu (%llu bytes)\n", off, len, len);
-
- req->r_mtime = *mtime;
- rc = ceph_osdc_start_request(osdc, req, true);
- if (!rc)
- rc = ceph_osdc_wait_request(osdc, req);
-
- ceph_update_write_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
-
- ceph_osdc_put_request(req);
- if (rc == 0)
- rc = len;
- dout("writepages result %d\n", rc);
- return rc;
+ if (end > ceph_fscrypt_page_offset(page) + thp_size(page))
+ end = ceph_fscrypt_page_offset(page) + thp_size(page);
+ ret = end > start ? end - start : 0;
+ if (ret && fscrypt_is_bounce_page(page))
+ ret = round_up(ret, CEPH_FSCRYPT_BLOCK_SIZE);
+ return ret;
}
/*
- * Write a single page, but leave the page locked.
+ * Write a folio, but leave it locked.
*
* If we get a write error, mark the mapping for error, but still adjust the
- * dirty page accounting (i.e., page is no longer dirty).
+ * dirty page accounting (i.e., folio is no longer dirty).
*/
-static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
+static int write_folio_nounlock(struct folio *folio,
+ struct writeback_control *wbc)
{
- struct inode *inode;
- struct ceph_inode_info *ci;
- struct ceph_fs_client *fsc;
+ struct page *page = &folio->page;
+ struct inode *inode = folio->mapping->host;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
struct ceph_snap_context *snapc, *oldest;
- loff_t page_off = page_offset(page);
- int err, len = PAGE_SIZE;
+ loff_t page_off = folio_pos(folio);
+ int err;
+ loff_t len = folio_size(folio);
+ loff_t wlen;
struct ceph_writeback_ctl ceph_wbc;
+ struct ceph_osd_client *osdc = &fsc->client->osdc;
+ struct ceph_osd_request *req;
+ bool caching = ceph_is_cache_enabled(inode);
+ struct page *bounce_page = NULL;
- dout("writepage %p idx %lu\n", page, page->index);
+ doutc(cl, "%llx.%llx folio %p idx %lu\n", ceph_vinop(inode), folio,
+ folio->index);
- inode = page->mapping->host;
- ci = ceph_inode(inode);
- fsc = ceph_inode_to_client(inode);
+ if (ceph_inode_is_shutdown(inode))
+ return -EIO;
/* verify this is a writeable snap context */
- snapc = page_snap_context(page);
+ snapc = page_snap_context(&folio->page);
if (!snapc) {
- dout("writepage %p page %p not dirty?\n", inode, page);
+ doutc(cl, "%llx.%llx folio %p not dirty?\n", ceph_vinop(inode),
+ folio);
return 0;
}
oldest = get_oldest_context(inode, &ceph_wbc, snapc);
if (snapc->seq > oldest->seq) {
- dout("writepage %p page %p snapc %p not writeable - noop\n",
- inode, page, snapc);
+ doutc(cl, "%llx.%llx folio %p snapc %p not writeable - noop\n",
+ ceph_vinop(inode), folio, snapc);
/* we should only noop if called by kswapd */
WARN_ON(!(current->flags & PF_MEMALLOC));
ceph_put_snap_context(oldest);
- redirty_page_for_writepage(wbc, page);
+ folio_redirty_for_writepage(wbc, folio);
return 0;
}
ceph_put_snap_context(oldest);
/* is this a partial page at end of file? */
if (page_off >= ceph_wbc.i_size) {
- dout("%p page eof %llu\n", page, ceph_wbc.i_size);
- page->mapping->a_ops->invalidatepage(page, 0, PAGE_SIZE);
+ doutc(cl, "%llx.%llx folio at %lu beyond eof %llu\n",
+ ceph_vinop(inode), folio->index, ceph_wbc.i_size);
+ folio_invalidate(folio, 0, folio_size(folio));
return 0;
}
if (ceph_wbc.i_size < page_off + len)
len = ceph_wbc.i_size - page_off;
- dout("writepage %p page %p index %lu on %llu~%u snapc %p seq %lld\n",
- inode, page, page->index, page_off, len, snapc, snapc->seq);
+ wlen = IS_ENCRYPTED(inode) ? round_up(len, CEPH_FSCRYPT_BLOCK_SIZE) : len;
+ doutc(cl, "%llx.%llx folio %p index %lu on %llu~%llu snapc %p seq %lld\n",
+ ceph_vinop(inode), folio, folio->index, page_off, wlen, snapc,
+ snapc->seq);
if (atomic_long_inc_return(&fsc->writeback_count) >
CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb))
- set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
-
- set_page_writeback(page);
- err = ceph_sync_writepages(fsc, ceph_vino(inode),
- &ci->i_layout, snapc, page_off, len,
- ceph_wbc.truncate_seq,
- ceph_wbc.truncate_size,
- &inode->i_mtime, &page, 1);
+ fsc->write_congested = true;
+
+ req = ceph_osdc_new_request(osdc, &ci->i_layout, ceph_vino(inode),
+ page_off, &wlen, 0, 1, CEPH_OSD_OP_WRITE,
+ CEPH_OSD_FLAG_WRITE, snapc,
+ ceph_wbc.truncate_seq,
+ ceph_wbc.truncate_size, true);
+ if (IS_ERR(req)) {
+ folio_redirty_for_writepage(wbc, folio);
+ return PTR_ERR(req);
+ }
+
+ if (wlen < len)
+ len = wlen;
+
+ folio_start_writeback(folio);
+ if (caching)
+ ceph_set_page_fscache(&folio->page);
+ ceph_fscache_write_to_cache(inode, page_off, len, caching);
+
+ if (IS_ENCRYPTED(inode)) {
+ bounce_page = fscrypt_encrypt_pagecache_blocks(folio,
+ CEPH_FSCRYPT_BLOCK_SIZE, 0,
+ GFP_NOFS);
+ if (IS_ERR(bounce_page)) {
+ folio_redirty_for_writepage(wbc, folio);
+ folio_end_writeback(folio);
+ ceph_osdc_put_request(req);
+ return PTR_ERR(bounce_page);
+ }
+ }
+
+ /* it may be a short write due to an object boundary */
+ WARN_ON_ONCE(len > folio_size(folio));
+ osd_req_op_extent_osd_data_pages(req, 0,
+ bounce_page ? &bounce_page : &page, wlen, 0,
+ false, false);
+ doutc(cl, "%llx.%llx %llu~%llu (%llu bytes, %sencrypted)\n",
+ ceph_vinop(inode), page_off, len, wlen,
+ IS_ENCRYPTED(inode) ? "" : "not ");
+
+ req->r_mtime = inode_get_mtime(inode);
+ ceph_osdc_start_request(osdc, req);
+ err = ceph_osdc_wait_request(osdc, req);
+
+ ceph_update_write_metrics(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, len, err);
+ fscrypt_free_bounce_page(bounce_page);
+ ceph_osdc_put_request(req);
+ if (err == 0)
+ err = len;
+
if (err < 0) {
struct writeback_control tmp_wbc;
if (!wbc)
wbc = &tmp_wbc;
if (err == -ERESTARTSYS) {
/* killed by SIGKILL */
- dout("writepage interrupted page %p\n", page);
- redirty_page_for_writepage(wbc, page);
- end_page_writeback(page);
+ doutc(cl, "%llx.%llx interrupted page %p\n",
+ ceph_vinop(inode), folio);
+ folio_redirty_for_writepage(wbc, folio);
+ folio_end_writeback(folio);
return err;
}
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
- dout("writepage setting page/mapping error %d %p\n",
- err, page);
+ if (err == -EBLOCKLISTED)
+ fsc->blocklisted = true;
+ doutc(cl, "%llx.%llx setting mapping error %d %p\n",
+ ceph_vinop(inode), err, folio);
mapping_set_error(&inode->i_data, err);
wbc->pages_skipped++;
} else {
- dout("writepage cleaned page %p\n", page);
+ doutc(cl, "%llx.%llx cleaned page %p\n",
+ ceph_vinop(inode), folio);
err = 0; /* vfs expects us to return 0 */
}
- page->private = 0;
- ClearPagePrivate(page);
- end_page_writeback(page);
+ oldest = folio_detach_private(folio);
+ WARN_ON_ONCE(oldest != snapc);
+ folio_end_writeback(folio);
ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
ceph_put_snap_context(snapc); /* page's reference */
if (atomic_long_dec_return(&fsc->writeback_count) <
CONGESTION_OFF_THRESH(fsc->mount_options->congestion_kb))
- clear_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
-
- return err;
-}
+ fsc->write_congested = false;
-static int ceph_writepage(struct page *page, struct writeback_control *wbc)
-{
- int err;
- struct inode *inode = page->mapping->host;
- BUG_ON(!inode);
- ihold(inode);
- err = writepage_nounlock(page, wbc);
- if (err == -ERESTARTSYS) {
- /* direct memory reclaimer was killed by SIGKILL. return 0
- * to prevent caller from setting mapping/page error */
- err = 0;
- }
- unlock_page(page);
- iput(inode);
return err;
}
@@ -787,6 +874,7 @@ static void writepages_finish(struct ceph_osd_request *req)
{
struct inode *inode = req->r_inode;
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_osd_data *osd_data;
struct page *page;
int num_pages, total_pages = 0;
@@ -794,22 +882,21 @@ static void writepages_finish(struct ceph_osd_request *req)
int rc = req->r_result;
struct ceph_snap_context *snapc = req->r_snapc;
struct address_space *mapping = inode->i_mapping;
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+ unsigned int len = 0;
bool remove_page;
- dout("writepages_finish %p rc %d\n", inode, rc);
+ doutc(cl, "%llx.%llx rc %d\n", ceph_vinop(inode), rc);
if (rc < 0) {
mapping_set_error(mapping, rc);
ceph_set_error_write(ci);
- if (rc == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (rc == -EBLOCKLISTED)
+ fsc->blocklisted = true;
} else {
ceph_clear_error_write(ci);
}
- ceph_update_write_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
-
/*
* We lost the cache cap, need to truncate the page before
* it is unlocked, otherwise we'd truncate it later in the
@@ -821,412 +908,811 @@ static void writepages_finish(struct ceph_osd_request *req)
/* clean all pages */
for (i = 0; i < req->r_num_ops; i++) {
- if (req->r_ops[i].op != CEPH_OSD_OP_WRITE)
+ if (req->r_ops[i].op != CEPH_OSD_OP_WRITE) {
+ pr_warn_client(cl,
+ "%llx.%llx incorrect op %d req %p index %d tid %llu\n",
+ ceph_vinop(inode), req->r_ops[i].op, req, i,
+ req->r_tid);
break;
+ }
osd_data = osd_req_op_extent_osd_data(req, i);
BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_PAGES);
+ len += osd_data->length;
num_pages = calc_pages_for((u64)osd_data->alignment,
(u64)osd_data->length);
total_pages += num_pages;
for (j = 0; j < num_pages; j++) {
page = osd_data->pages[j];
+ if (fscrypt_is_bounce_page(page)) {
+ page = fscrypt_pagecache_page(page);
+ fscrypt_free_bounce_page(osd_data->pages[j]);
+ osd_data->pages[j] = page;
+ }
BUG_ON(!page);
WARN_ON(!PageUptodate(page));
if (atomic_long_dec_return(&fsc->writeback_count) <
CONGESTION_OFF_THRESH(
fsc->mount_options->congestion_kb))
- clear_bdi_congested(inode_to_bdi(inode),
- BLK_RW_ASYNC);
+ fsc->write_congested = false;
- ceph_put_snap_context(page_snap_context(page));
- page->private = 0;
- ClearPagePrivate(page);
- dout("unlocking %p\n", page);
+ ceph_put_snap_context(detach_page_private(page));
end_page_writeback(page);
+ if (atomic64_dec_return(&mdsc->dirty_folios) <= 0) {
+ wake_up_all(&mdsc->flush_end_wq);
+ WARN_ON(atomic64_read(&mdsc->dirty_folios) < 0);
+ }
+
+ doutc(cl, "unlocking %p\n", page);
+
if (remove_page)
- generic_error_remove_page(inode->i_mapping,
- page);
+ generic_error_remove_folio(inode->i_mapping,
+ page_folio(page));
unlock_page(page);
}
- dout("writepages_finish %p wrote %llu bytes cleaned %d pages\n",
- inode, osd_data->length, rc >= 0 ? num_pages : 0);
+ doutc(cl, "%llx.%llx wrote %llu bytes cleaned %d pages\n",
+ ceph_vinop(inode), osd_data->length,
+ rc >= 0 ? num_pages : 0);
release_pages(osd_data->pages, num_pages);
}
+ ceph_update_write_metrics(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, len, rc);
+
ceph_put_wrbuffer_cap_refs(ci, total_pages, snapc);
osd_data = osd_req_op_extent_osd_data(req, 0);
if (osd_data->pages_from_pool)
- mempool_free(osd_data->pages,
- ceph_sb_to_client(inode->i_sb)->wb_pagevec_pool);
+ mempool_free(osd_data->pages, ceph_wb_pagevec_pool);
else
kfree(osd_data->pages);
ceph_osdc_put_request(req);
+ ceph_dec_osd_stopping_blocker(fsc->mdsc);
}
-/*
- * initiate async writeback
- */
-static int ceph_writepages_start(struct address_space *mapping,
- struct writeback_control *wbc)
+static inline
+bool is_forced_umount(struct address_space *mapping)
{
struct inode *inode = mapping->host;
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_vino vino = ceph_vino(inode);
- pgoff_t index, start_index, end = -1;
- struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;
- struct pagevec pvec;
- int rc = 0;
- unsigned int wsize = i_blocksize(inode);
- struct ceph_osd_request *req = NULL;
- struct ceph_writeback_ctl ceph_wbc;
- bool should_loop, range_whole = false;
- bool done = false;
-
- dout("writepages_start %p (mode=%s)\n", inode,
- wbc->sync_mode == WB_SYNC_NONE ? "NONE" :
- (wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
- if (READ_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
+ if (ceph_inode_is_shutdown(inode)) {
if (ci->i_wrbuffer_ref > 0) {
- pr_warn_ratelimited(
- "writepage_start %p %lld forced umount\n",
- inode, ceph_ino(inode));
+ pr_warn_ratelimited_client(cl,
+ "%llx.%llx %lld forced umount\n",
+ ceph_vinop(inode), ceph_ino(inode));
}
mapping_set_error(mapping, -EIO);
- return -EIO; /* we're in a forced umount, don't write! */
+ return true;
}
+
+ return false;
+}
+
+static inline
+unsigned int ceph_define_write_size(struct address_space *mapping)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ unsigned int wsize = i_blocksize(inode);
+
if (fsc->mount_options->wsize < wsize)
wsize = fsc->mount_options->wsize;
- pagevec_init(&pvec);
+ return wsize;
+}
+
+static inline
+void ceph_folio_batch_init(struct ceph_writeback_ctl *ceph_wbc)
+{
+ folio_batch_init(&ceph_wbc->fbatch);
+ ceph_wbc->processed_in_fbatch = 0;
+}
- start_index = wbc->range_cyclic ? mapping->writeback_index : 0;
- index = start_index;
+static inline
+void ceph_folio_batch_reinit(struct ceph_writeback_ctl *ceph_wbc)
+{
+ folio_batch_release(&ceph_wbc->fbatch);
+ ceph_folio_batch_init(ceph_wbc);
+}
+
+static inline
+void ceph_init_writeback_ctl(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc)
+{
+ ceph_wbc->snapc = NULL;
+ ceph_wbc->last_snapc = NULL;
+
+ ceph_wbc->strip_unit_end = 0;
+ ceph_wbc->wsize = ceph_define_write_size(mapping);
+
+ ceph_wbc->nr_folios = 0;
+ ceph_wbc->max_pages = 0;
+ ceph_wbc->locked_pages = 0;
+
+ ceph_wbc->done = false;
+ ceph_wbc->should_loop = false;
+ ceph_wbc->range_whole = false;
+
+ ceph_wbc->start_index = wbc->range_cyclic ? mapping->writeback_index : 0;
+ ceph_wbc->index = ceph_wbc->start_index;
+ ceph_wbc->end = -1;
+
+ ceph_wbc->tag = wbc_to_tag(wbc);
+
+ ceph_wbc->op_idx = -1;
+ ceph_wbc->num_ops = 0;
+ ceph_wbc->offset = 0;
+ ceph_wbc->len = 0;
+ ceph_wbc->from_pool = false;
+
+ ceph_folio_batch_init(ceph_wbc);
+
+ ceph_wbc->pages = NULL;
+ ceph_wbc->data_pages = NULL;
+}
+
+static inline
+int ceph_define_writeback_range(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
-retry:
/* find oldest snap context with dirty data */
- snapc = get_oldest_context(inode, &ceph_wbc, NULL);
- if (!snapc) {
+ ceph_wbc->snapc = get_oldest_context(inode, ceph_wbc, NULL);
+ if (!ceph_wbc->snapc) {
/* hmm, why does writepages get called when there
is no dirty data? */
- dout(" no snap context with dirty data?\n");
- goto out;
+ doutc(cl, " no snap context with dirty data?\n");
+ return -ENODATA;
}
- dout(" oldest snapc is %p seq %lld (%d snaps)\n",
- snapc, snapc->seq, snapc->num_snaps);
- should_loop = false;
- if (ceph_wbc.head_snapc && snapc != last_snapc) {
+ doutc(cl, " oldest snapc is %p seq %lld (%d snaps)\n",
+ ceph_wbc->snapc, ceph_wbc->snapc->seq,
+ ceph_wbc->snapc->num_snaps);
+
+ ceph_wbc->should_loop = false;
+
+ if (ceph_wbc->head_snapc && ceph_wbc->snapc != ceph_wbc->last_snapc) {
/* where to start/end? */
if (wbc->range_cyclic) {
- index = start_index;
- end = -1;
- if (index > 0)
- should_loop = true;
- dout(" cyclic, start at %lu\n", index);
+ ceph_wbc->index = ceph_wbc->start_index;
+ ceph_wbc->end = -1;
+ if (ceph_wbc->index > 0)
+ ceph_wbc->should_loop = true;
+ doutc(cl, " cyclic, start at %lu\n", ceph_wbc->index);
} else {
- index = wbc->range_start >> PAGE_SHIFT;
- end = wbc->range_end >> PAGE_SHIFT;
+ ceph_wbc->index = wbc->range_start >> PAGE_SHIFT;
+ ceph_wbc->end = wbc->range_end >> PAGE_SHIFT;
if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
- range_whole = true;
- dout(" not cyclic, %lu to %lu\n", index, end);
+ ceph_wbc->range_whole = true;
+ doutc(cl, " not cyclic, %lu to %lu\n",
+ ceph_wbc->index, ceph_wbc->end);
}
- } else if (!ceph_wbc.head_snapc) {
+ } else if (!ceph_wbc->head_snapc) {
/* Do not respect wbc->range_{start,end}. Dirty pages
* in that range can be associated with newer snapc.
* They are not writeable until we write all dirty pages
* associated with 'snapc' get written */
- if (index > 0)
- should_loop = true;
- dout(" non-head snapc, range whole\n");
+ if (ceph_wbc->index > 0)
+ ceph_wbc->should_loop = true;
+ doutc(cl, " non-head snapc, range whole\n");
}
- ceph_put_snap_context(last_snapc);
- last_snapc = snapc;
+ ceph_put_snap_context(ceph_wbc->last_snapc);
+ ceph_wbc->last_snapc = ceph_wbc->snapc;
- while (!done && index <= end) {
- int num_ops = 0, op_idx;
- unsigned i, pvec_pages, max_pages, locked_pages = 0;
- struct page **pages = NULL, **data_pages;
- mempool_t *pool = NULL; /* Becomes non-null if mempool used */
- struct page *page;
- pgoff_t strip_unit_end = 0;
- u64 offset = 0, len = 0;
+ return 0;
+}
- max_pages = wsize >> PAGE_SHIFT;
+static inline
+bool has_writeback_done(struct ceph_writeback_ctl *ceph_wbc)
+{
+ return ceph_wbc->done && ceph_wbc->index > ceph_wbc->end;
+}
-get_more_pages:
- pvec_pages = pagevec_lookup_range_nr_tag(&pvec, mapping, &index,
- end, PAGECACHE_TAG_DIRTY,
- max_pages - locked_pages);
- dout("pagevec_lookup_range_tag got %d\n", pvec_pages);
- if (!pvec_pages && !locked_pages)
- break;
- for (i = 0; i < pvec_pages && locked_pages < max_pages; i++) {
- page = pvec.pages[i];
- dout("? %p idx %lu\n", page, page->index);
- if (locked_pages == 0)
- lock_page(page); /* first page */
- else if (!trylock_page(page))
- break;
+static inline
+bool can_next_page_be_processed(struct ceph_writeback_ctl *ceph_wbc,
+ unsigned index)
+{
+ return index < ceph_wbc->nr_folios &&
+ ceph_wbc->locked_pages < ceph_wbc->max_pages;
+}
- /* only dirty pages, or our accounting breaks */
- if (unlikely(!PageDirty(page)) ||
- unlikely(page->mapping != mapping)) {
- dout("!dirty or !mapping %p\n", page);
- unlock_page(page);
- continue;
- }
- /* only if matching snap context */
- pgsnapc = page_snap_context(page);
- if (pgsnapc != snapc) {
- dout("page snapc %p %lld != oldest %p %lld\n",
- pgsnapc, pgsnapc->seq, snapc, snapc->seq);
- if (!should_loop &&
- !ceph_wbc.head_snapc &&
- wbc->sync_mode != WB_SYNC_NONE)
- should_loop = true;
- unlock_page(page);
- continue;
- }
- if (page_offset(page) >= ceph_wbc.i_size) {
- dout("%p page eof %llu\n",
- page, ceph_wbc.i_size);
- if ((ceph_wbc.size_stable ||
- page_offset(page) >= i_size_read(inode)) &&
- clear_page_dirty_for_io(page))
- mapping->a_ops->invalidatepage(page,
- 0, PAGE_SIZE);
- unlock_page(page);
- continue;
- }
- if (strip_unit_end && (page->index > strip_unit_end)) {
- dout("end of strip unit %p\n", page);
- unlock_page(page);
- break;
- }
- if (PageWriteback(page)) {
- if (wbc->sync_mode == WB_SYNC_NONE) {
- dout("%p under writeback\n", page);
- unlock_page(page);
- continue;
- }
- dout("waiting on writeback %p\n", page);
- wait_on_page_writeback(page);
- }
+static
+int ceph_check_page_before_write(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc,
+ struct folio *folio)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_snap_context *pgsnapc;
+
+ /* only dirty folios, or our accounting breaks */
+ if (unlikely(!folio_test_dirty(folio) || folio->mapping != mapping)) {
+ doutc(cl, "!dirty or !mapping %p\n", folio);
+ return -ENODATA;
+ }
- if (!clear_page_dirty_for_io(page)) {
- dout("%p !clear_page_dirty_for_io\n", page);
- unlock_page(page);
- continue;
- }
+ /* only if matching snap context */
+ pgsnapc = page_snap_context(&folio->page);
+ if (pgsnapc != ceph_wbc->snapc) {
+ doutc(cl, "folio snapc %p %lld != oldest %p %lld\n",
+ pgsnapc, pgsnapc->seq,
+ ceph_wbc->snapc, ceph_wbc->snapc->seq);
- /*
- * We have something to write. If this is
- * the first locked page this time through,
- * calculate max possinle write size and
- * allocate a page array
- */
- if (locked_pages == 0) {
- u64 objnum;
- u64 objoff;
- u32 xlen;
-
- /* prepare async write request */
- offset = (u64)page_offset(page);
- ceph_calc_file_object_mapping(&ci->i_layout,
- offset, wsize,
- &objnum, &objoff,
- &xlen);
- len = xlen;
-
- num_ops = 1;
- strip_unit_end = page->index +
- ((len - 1) >> PAGE_SHIFT);
-
- BUG_ON(pages);
- max_pages = calc_pages_for(0, (u64)len);
- pages = kmalloc_array(max_pages,
- sizeof(*pages),
- GFP_NOFS);
- if (!pages) {
- pool = fsc->wb_pagevec_pool;
- pages = mempool_alloc(pool, GFP_NOFS);
- BUG_ON(!pages);
- }
-
- len = 0;
- } else if (page->index !=
- (offset + len) >> PAGE_SHIFT) {
- if (num_ops >= (pool ? CEPH_OSD_SLAB_OPS :
- CEPH_OSD_MAX_OPS)) {
- redirty_page_for_writepage(wbc, page);
- unlock_page(page);
- break;
- }
-
- num_ops++;
- offset = (u64)page_offset(page);
- len = 0;
- }
+ if (!ceph_wbc->should_loop && !ceph_wbc->head_snapc &&
+ wbc->sync_mode != WB_SYNC_NONE)
+ ceph_wbc->should_loop = true;
+
+ return -ENODATA;
+ }
+
+ if (folio_pos(folio) >= ceph_wbc->i_size) {
+ doutc(cl, "folio at %lu beyond eof %llu\n",
+ folio->index, ceph_wbc->i_size);
+
+ if ((ceph_wbc->size_stable ||
+ folio_pos(folio) >= i_size_read(inode)) &&
+ folio_clear_dirty_for_io(folio))
+ folio_invalidate(folio, 0, folio_size(folio));
+
+ return -ENODATA;
+ }
- /* note position of first page in pvec */
- dout("%p will write page %p idx %lu\n",
- inode, page, page->index);
+ if (ceph_wbc->strip_unit_end &&
+ (folio->index > ceph_wbc->strip_unit_end)) {
+ doutc(cl, "end of strip unit %p\n", folio);
+ return -E2BIG;
+ }
+
+ return 0;
+}
+
+static inline
+void __ceph_allocate_page_array(struct ceph_writeback_ctl *ceph_wbc,
+ unsigned int max_pages)
+{
+ ceph_wbc->pages = kmalloc_array(max_pages,
+ sizeof(*ceph_wbc->pages),
+ GFP_NOFS);
+ if (!ceph_wbc->pages) {
+ ceph_wbc->from_pool = true;
+ ceph_wbc->pages = mempool_alloc(ceph_wb_pagevec_pool, GFP_NOFS);
+ BUG_ON(!ceph_wbc->pages);
+ }
+}
+
+static inline
+void ceph_allocate_page_array(struct address_space *mapping,
+ struct ceph_writeback_ctl *ceph_wbc,
+ struct folio *folio)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ u64 objnum;
+ u64 objoff;
+ u32 xlen;
+
+ /* prepare async write request */
+ ceph_wbc->offset = (u64)folio_pos(folio);
+ ceph_calc_file_object_mapping(&ci->i_layout,
+ ceph_wbc->offset, ceph_wbc->wsize,
+ &objnum, &objoff, &xlen);
+
+ ceph_wbc->num_ops = 1;
+ ceph_wbc->strip_unit_end = folio->index + ((xlen - 1) >> PAGE_SHIFT);
+
+ BUG_ON(ceph_wbc->pages);
+ ceph_wbc->max_pages = calc_pages_for(0, (u64)xlen);
+ __ceph_allocate_page_array(ceph_wbc, ceph_wbc->max_pages);
+
+ ceph_wbc->len = 0;
+}
+
+static inline
+bool is_folio_index_contiguous(const struct ceph_writeback_ctl *ceph_wbc,
+ const struct folio *folio)
+{
+ return folio->index == (ceph_wbc->offset + ceph_wbc->len) >> PAGE_SHIFT;
+}
- if (atomic_long_inc_return(&fsc->writeback_count) >
- CONGESTION_ON_THRESH(
- fsc->mount_options->congestion_kb)) {
- set_bdi_congested(inode_to_bdi(inode),
- BLK_RW_ASYNC);
+static inline
+bool is_num_ops_too_big(struct ceph_writeback_ctl *ceph_wbc)
+{
+ return ceph_wbc->num_ops >=
+ (ceph_wbc->from_pool ? CEPH_OSD_SLAB_OPS : CEPH_OSD_MAX_OPS);
+}
+
+static inline
+bool is_write_congestion_happened(struct ceph_fs_client *fsc)
+{
+ return atomic_long_inc_return(&fsc->writeback_count) >
+ CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb);
+}
+
+static inline int move_dirty_folio_in_page_array(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc, struct folio *folio)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct page **pages = ceph_wbc->pages;
+ unsigned int index = ceph_wbc->locked_pages;
+ gfp_t gfp_flags = ceph_wbc->locked_pages ? GFP_NOWAIT : GFP_NOFS;
+
+ if (IS_ENCRYPTED(inode)) {
+ pages[index] = fscrypt_encrypt_pagecache_blocks(folio,
+ PAGE_SIZE,
+ 0,
+ gfp_flags);
+ if (IS_ERR(pages[index])) {
+ int err = PTR_ERR(pages[index]);
+
+ if (err == -EINVAL) {
+ pr_err_client(cl, "inode->i_blkbits=%hhu\n",
+ inode->i_blkbits);
}
+ /* better not fail on first page! */
+ BUG_ON(ceph_wbc->locked_pages == 0);
+
+ pages[index] = NULL;
+ return err;
+ }
+ } else {
+ pages[index] = &folio->page;
+ }
+
+ ceph_wbc->locked_pages++;
+
+ return 0;
+}
+
+static
+int ceph_process_folio_batch(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct folio *folio = NULL;
+ unsigned i;
+ int rc = 0;
+
+ for (i = 0; can_next_page_be_processed(ceph_wbc, i); i++) {
+ folio = ceph_wbc->fbatch.folios[i];
- pages[locked_pages++] = page;
- pvec.pages[i] = NULL;
+ if (!folio)
+ continue;
- len += PAGE_SIZE;
+ doutc(cl, "? %p idx %lu, folio_test_writeback %#x, "
+ "folio_test_dirty %#x, folio_test_locked %#x\n",
+ folio, folio->index, folio_test_writeback(folio),
+ folio_test_dirty(folio),
+ folio_test_locked(folio));
+
+ if (folio_test_writeback(folio) ||
+ folio_test_private_2(folio) /* [DEPRECATED] */) {
+ doutc(cl, "waiting on writeback %p\n", folio);
+ folio_wait_writeback(folio);
+ folio_wait_private_2(folio); /* [DEPRECATED] */
+ continue;
}
- /* did we get anything? */
- if (!locked_pages)
- goto release_pvec_pages;
- if (i) {
- unsigned j, n = 0;
- /* shift unused page to beginning of pvec */
- for (j = 0; j < pvec_pages; j++) {
- if (!pvec.pages[j])
- continue;
- if (n < j)
- pvec.pages[n] = pvec.pages[j];
- n++;
- }
- pvec.nr = n;
+ if (ceph_wbc->locked_pages == 0)
+ folio_lock(folio);
+ else if (!folio_trylock(folio))
+ break;
- if (pvec_pages && i == pvec_pages &&
- locked_pages < max_pages) {
- dout("reached end pvec, trying for more\n");
- pagevec_release(&pvec);
- goto get_more_pages;
+ rc = ceph_check_page_before_write(mapping, wbc,
+ ceph_wbc, folio);
+ if (rc == -ENODATA) {
+ rc = 0;
+ folio_unlock(folio);
+ ceph_wbc->fbatch.folios[i] = NULL;
+ continue;
+ } else if (rc == -E2BIG) {
+ rc = 0;
+ folio_unlock(folio);
+ ceph_wbc->fbatch.folios[i] = NULL;
+ break;
+ }
+
+ if (!folio_clear_dirty_for_io(folio)) {
+ doutc(cl, "%p !folio_clear_dirty_for_io\n", folio);
+ folio_unlock(folio);
+ ceph_wbc->fbatch.folios[i] = NULL;
+ continue;
+ }
+
+ /*
+ * We have something to write. If this is
+ * the first locked page this time through,
+ * calculate max possible write size and
+ * allocate a page array
+ */
+ if (ceph_wbc->locked_pages == 0) {
+ ceph_allocate_page_array(mapping, ceph_wbc, folio);
+ } else if (!is_folio_index_contiguous(ceph_wbc, folio)) {
+ if (is_num_ops_too_big(ceph_wbc)) {
+ folio_redirty_for_writepage(wbc, folio);
+ folio_unlock(folio);
+ break;
}
+
+ ceph_wbc->num_ops++;
+ ceph_wbc->offset = (u64)folio_pos(folio);
+ ceph_wbc->len = 0;
}
+ /* note position of first page in fbatch */
+ doutc(cl, "%llx.%llx will write folio %p idx %lu\n",
+ ceph_vinop(inode), folio, folio->index);
+
+ fsc->write_congested = is_write_congestion_happened(fsc);
+
+ rc = move_dirty_folio_in_page_array(mapping, wbc, ceph_wbc,
+ folio);
+ if (rc) {
+ folio_redirty_for_writepage(wbc, folio);
+ folio_unlock(folio);
+ break;
+ }
+
+ ceph_wbc->fbatch.folios[i] = NULL;
+ ceph_wbc->len += folio_size(folio);
+ }
+
+ ceph_wbc->processed_in_fbatch = i;
+
+ return rc;
+}
+
+static inline
+void ceph_shift_unused_folios_left(struct folio_batch *fbatch)
+{
+ unsigned j, n = 0;
+
+ /* shift unused page to beginning of fbatch */
+ for (j = 0; j < folio_batch_count(fbatch); j++) {
+ if (!fbatch->folios[j])
+ continue;
+
+ if (n < j) {
+ fbatch->folios[n] = fbatch->folios[j];
+ }
+
+ n++;
+ }
+
+ fbatch->nr = n;
+}
+
+static
+int ceph_submit_write(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_vino vino = ceph_vino(inode);
+ struct ceph_osd_request *req = NULL;
+ struct page *page = NULL;
+ bool caching = ceph_is_cache_enabled(inode);
+ u64 offset;
+ u64 len;
+ unsigned i;
+
new_request:
- offset = page_offset(pages[0]);
- len = wsize;
+ offset = ceph_fscrypt_page_offset(ceph_wbc->pages[0]);
+ len = ceph_wbc->wsize;
+ req = ceph_osdc_new_request(&fsc->client->osdc,
+ &ci->i_layout, vino,
+ offset, &len, 0, ceph_wbc->num_ops,
+ CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
+ ceph_wbc->snapc, ceph_wbc->truncate_seq,
+ ceph_wbc->truncate_size, false);
+ if (IS_ERR(req)) {
req = ceph_osdc_new_request(&fsc->client->osdc,
- &ci->i_layout, vino,
- offset, &len, 0, num_ops,
- CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
- snapc, ceph_wbc.truncate_seq,
- ceph_wbc.truncate_size, false);
- if (IS_ERR(req)) {
- req = ceph_osdc_new_request(&fsc->client->osdc,
- &ci->i_layout, vino,
- offset, &len, 0,
- min(num_ops,
- CEPH_OSD_SLAB_OPS),
- CEPH_OSD_OP_WRITE,
- CEPH_OSD_FLAG_WRITE,
- snapc, ceph_wbc.truncate_seq,
- ceph_wbc.truncate_size, true);
- BUG_ON(IS_ERR(req));
+ &ci->i_layout, vino,
+ offset, &len, 0,
+ min(ceph_wbc->num_ops,
+ CEPH_OSD_SLAB_OPS),
+ CEPH_OSD_OP_WRITE,
+ CEPH_OSD_FLAG_WRITE,
+ ceph_wbc->snapc,
+ ceph_wbc->truncate_seq,
+ ceph_wbc->truncate_size,
+ true);
+ BUG_ON(IS_ERR(req));
+ }
+
+ page = ceph_wbc->pages[ceph_wbc->locked_pages - 1];
+ BUG_ON(len < ceph_fscrypt_page_offset(page) + thp_size(page) - offset);
+
+ if (!ceph_inc_osd_stopping_blocker(fsc->mdsc)) {
+ for (i = 0; i < folio_batch_count(&ceph_wbc->fbatch); i++) {
+ struct folio *folio = ceph_wbc->fbatch.folios[i];
+
+ if (!folio)
+ continue;
+
+ page = &folio->page;
+ redirty_page_for_writepage(wbc, page);
+ unlock_page(page);
}
- BUG_ON(len < page_offset(pages[locked_pages - 1]) +
- PAGE_SIZE - offset);
-
- req->r_callback = writepages_finish;
- req->r_inode = inode;
-
- /* Format the osd request message and submit the write */
- len = 0;
- data_pages = pages;
- op_idx = 0;
- for (i = 0; i < locked_pages; i++) {
- u64 cur_offset = page_offset(pages[i]);
- if (offset + len != cur_offset) {
- if (op_idx + 1 == req->r_num_ops)
- break;
- osd_req_op_extent_dup_last(req, op_idx,
- cur_offset - offset);
- dout("writepages got pages at %llu~%llu\n",
- offset, len);
- osd_req_op_extent_osd_data_pages(req, op_idx,
- data_pages, len, 0,
- !!pool, false);
- osd_req_op_extent_update(req, op_idx, len);
-
- len = 0;
- offset = cur_offset;
- data_pages = pages + i;
- op_idx++;
- }
- set_page_writeback(pages[i]);
- len += PAGE_SIZE;
+ for (i = 0; i < ceph_wbc->locked_pages; i++) {
+ page = ceph_fscrypt_pagecache_page(ceph_wbc->pages[i]);
+
+ if (!page)
+ continue;
+
+ redirty_page_for_writepage(wbc, page);
+ unlock_page(page);
}
- if (ceph_wbc.size_stable) {
- len = min(len, ceph_wbc.i_size - offset);
- } else if (i == locked_pages) {
- /* writepages_finish() clears writeback pages
- * according to the data length, so make sure
- * data length covers all locked pages */
- u64 min_len = len + 1 - PAGE_SIZE;
- len = get_writepages_data_length(inode, pages[i - 1],
- offset);
- len = max(len, min_len);
+ ceph_osdc_put_request(req);
+ return -EIO;
+ }
+
+ req->r_callback = writepages_finish;
+ req->r_inode = inode;
+
+ /* Format the osd request message and submit the write */
+ len = 0;
+ ceph_wbc->data_pages = ceph_wbc->pages;
+ ceph_wbc->op_idx = 0;
+ for (i = 0; i < ceph_wbc->locked_pages; i++) {
+ u64 cur_offset;
+
+ page = ceph_fscrypt_pagecache_page(ceph_wbc->pages[i]);
+ cur_offset = page_offset(page);
+
+ /*
+ * Discontinuity in page range? Ceph can handle that by just passing
+ * multiple extents in the write op.
+ */
+ if (offset + len != cur_offset) {
+ /* If it's full, stop here */
+ if (ceph_wbc->op_idx + 1 == req->r_num_ops)
+ break;
+
+ /* Kick off an fscache write with what we have so far. */
+ ceph_fscache_write_to_cache(inode, offset, len, caching);
+
+ /* Start a new extent */
+ osd_req_op_extent_dup_last(req, ceph_wbc->op_idx,
+ cur_offset - offset);
+
+ doutc(cl, "got pages at %llu~%llu\n", offset, len);
+
+ osd_req_op_extent_osd_data_pages(req, ceph_wbc->op_idx,
+ ceph_wbc->data_pages,
+ len, 0,
+ ceph_wbc->from_pool,
+ false);
+ osd_req_op_extent_update(req, ceph_wbc->op_idx, len);
+
+ len = 0;
+ offset = cur_offset;
+ ceph_wbc->data_pages = ceph_wbc->pages + i;
+ ceph_wbc->op_idx++;
}
- dout("writepages got pages at %llu~%llu\n", offset, len);
-
- osd_req_op_extent_osd_data_pages(req, op_idx, data_pages, len,
- 0, !!pool, false);
- osd_req_op_extent_update(req, op_idx, len);
-
- BUG_ON(op_idx + 1 != req->r_num_ops);
-
- pool = NULL;
- if (i < locked_pages) {
- BUG_ON(num_ops <= req->r_num_ops);
- num_ops -= req->r_num_ops;
- locked_pages -= i;
-
- /* allocate new pages array for next request */
- data_pages = pages;
- pages = kmalloc_array(locked_pages, sizeof(*pages),
- GFP_NOFS);
- if (!pages) {
- pool = fsc->wb_pagevec_pool;
- pages = mempool_alloc(pool, GFP_NOFS);
- BUG_ON(!pages);
+
+ set_page_writeback(page);
+
+ if (caching)
+ ceph_set_page_fscache(page);
+
+ len += thp_size(page);
+ }
+
+ ceph_fscache_write_to_cache(inode, offset, len, caching);
+
+ if (ceph_wbc->size_stable) {
+ len = min(len, ceph_wbc->i_size - offset);
+ } else if (i == ceph_wbc->locked_pages) {
+ /* writepages_finish() clears writeback pages
+ * according to the data length, so make sure
+ * data length covers all locked pages */
+ u64 min_len = len + 1 - thp_size(page);
+ len = get_writepages_data_length(inode,
+ ceph_wbc->pages[i - 1],
+ offset);
+ len = max(len, min_len);
+ }
+
+ if (IS_ENCRYPTED(inode))
+ len = round_up(len, CEPH_FSCRYPT_BLOCK_SIZE);
+
+ doutc(cl, "got pages at %llu~%llu\n", offset, len);
+
+ if (IS_ENCRYPTED(inode) &&
+ ((offset | len) & ~CEPH_FSCRYPT_BLOCK_MASK)) {
+ pr_warn_client(cl,
+ "bad encrypted write offset=%lld len=%llu\n",
+ offset, len);
+ }
+
+ osd_req_op_extent_osd_data_pages(req, ceph_wbc->op_idx,
+ ceph_wbc->data_pages, len,
+ 0, ceph_wbc->from_pool, false);
+ osd_req_op_extent_update(req, ceph_wbc->op_idx, len);
+
+ BUG_ON(ceph_wbc->op_idx + 1 != req->r_num_ops);
+
+ ceph_wbc->from_pool = false;
+ if (i < ceph_wbc->locked_pages) {
+ BUG_ON(ceph_wbc->num_ops <= req->r_num_ops);
+ ceph_wbc->num_ops -= req->r_num_ops;
+ ceph_wbc->locked_pages -= i;
+
+ /* allocate new pages array for next request */
+ ceph_wbc->data_pages = ceph_wbc->pages;
+ __ceph_allocate_page_array(ceph_wbc, ceph_wbc->locked_pages);
+ memcpy(ceph_wbc->pages, ceph_wbc->data_pages + i,
+ ceph_wbc->locked_pages * sizeof(*ceph_wbc->pages));
+ memset(ceph_wbc->data_pages + i, 0,
+ ceph_wbc->locked_pages * sizeof(*ceph_wbc->pages));
+ } else {
+ BUG_ON(ceph_wbc->num_ops != req->r_num_ops);
+ /* request message now owns the pages array */
+ ceph_wbc->pages = NULL;
+ }
+
+ req->r_mtime = inode_get_mtime(inode);
+ ceph_osdc_start_request(&fsc->client->osdc, req);
+ req = NULL;
+
+ wbc->nr_to_write -= i;
+ if (ceph_wbc->pages)
+ goto new_request;
+
+ return 0;
+}
+
+static
+void ceph_wait_until_current_writes_complete(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct ceph_writeback_ctl *ceph_wbc)
+{
+ struct page *page;
+ unsigned i, nr;
+
+ if (wbc->sync_mode != WB_SYNC_NONE &&
+ ceph_wbc->start_index == 0 && /* all dirty pages were checked */
+ !ceph_wbc->head_snapc) {
+ ceph_wbc->index = 0;
+
+ while ((ceph_wbc->index <= ceph_wbc->end) &&
+ (nr = filemap_get_folios_tag(mapping,
+ &ceph_wbc->index,
+ (pgoff_t)-1,
+ PAGECACHE_TAG_WRITEBACK,
+ &ceph_wbc->fbatch))) {
+ for (i = 0; i < nr; i++) {
+ page = &ceph_wbc->fbatch.folios[i]->page;
+ if (page_snap_context(page) != ceph_wbc->snapc)
+ continue;
+ wait_on_page_writeback(page);
}
- memcpy(pages, data_pages + i,
- locked_pages * sizeof(*pages));
- memset(data_pages + i, 0,
- locked_pages * sizeof(*pages));
- } else {
- BUG_ON(num_ops != req->r_num_ops);
- index = pages[i - 1]->index + 1;
- /* request message now owns the pages array */
- pages = NULL;
+
+ folio_batch_release(&ceph_wbc->fbatch);
+ cond_resched();
}
+ }
+}
- req->r_mtime = inode->i_mtime;
- rc = ceph_osdc_start_request(&fsc->client->osdc, req, true);
- BUG_ON(rc);
- req = NULL;
+/*
+ * initiate async writeback
+ */
+static int ceph_writepages_start(struct address_space *mapping,
+ struct writeback_control *wbc)
+{
+ struct inode *inode = mapping->host;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_writeback_ctl ceph_wbc;
+ int rc = 0;
+
+ if (wbc->sync_mode == WB_SYNC_NONE && fsc->write_congested)
+ return 0;
+
+ doutc(cl, "%llx.%llx (mode=%s)\n", ceph_vinop(inode),
+ wbc->sync_mode == WB_SYNC_NONE ? "NONE" :
+ (wbc->sync_mode == WB_SYNC_ALL ? "ALL" : "HOLD"));
- wbc->nr_to_write -= i;
- if (pages)
- goto new_request;
+ if (is_forced_umount(mapping)) {
+ /* we're in a forced umount, don't write! */
+ return -EIO;
+ }
+
+ ceph_init_writeback_ctl(mapping, wbc, &ceph_wbc);
+
+ if (!ceph_inc_osd_stopping_blocker(fsc->mdsc)) {
+ rc = -EIO;
+ goto out;
+ }
+
+retry:
+ rc = ceph_define_writeback_range(mapping, wbc, &ceph_wbc);
+ if (rc == -ENODATA) {
+ /* hmm, why does writepages get called when there
+ is no dirty data? */
+ rc = 0;
+ goto dec_osd_stopping_blocker;
+ }
+
+ if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
+ tag_pages_for_writeback(mapping, ceph_wbc.index, ceph_wbc.end);
+
+ while (!has_writeback_done(&ceph_wbc)) {
+ ceph_wbc.locked_pages = 0;
+ ceph_wbc.max_pages = ceph_wbc.wsize >> PAGE_SHIFT;
+
+get_more_pages:
+ ceph_folio_batch_reinit(&ceph_wbc);
+
+ ceph_wbc.nr_folios = filemap_get_folios_tag(mapping,
+ &ceph_wbc.index,
+ ceph_wbc.end,
+ ceph_wbc.tag,
+ &ceph_wbc.fbatch);
+ doutc(cl, "pagevec_lookup_range_tag for tag %#x got %d\n",
+ ceph_wbc.tag, ceph_wbc.nr_folios);
+
+ if (!ceph_wbc.nr_folios && !ceph_wbc.locked_pages)
+ break;
+
+process_folio_batch:
+ rc = ceph_process_folio_batch(mapping, wbc, &ceph_wbc);
+ ceph_shift_unused_folios_left(&ceph_wbc.fbatch);
+ if (rc)
+ goto release_folios;
+
+ /* did we get anything? */
+ if (!ceph_wbc.locked_pages)
+ goto release_folios;
+
+ if (ceph_wbc.processed_in_fbatch) {
+ if (folio_batch_count(&ceph_wbc.fbatch) == 0 &&
+ ceph_wbc.locked_pages < ceph_wbc.max_pages) {
+ doutc(cl, "reached end fbatch, trying for more\n");
+ goto get_more_pages;
+ }
+ }
+
+ rc = ceph_submit_write(mapping, wbc, &ceph_wbc);
+ if (rc)
+ goto release_folios;
+
+ ceph_wbc.locked_pages = 0;
+ ceph_wbc.strip_unit_end = 0;
+
+ if (folio_batch_count(&ceph_wbc.fbatch) > 0) {
+ ceph_wbc.nr_folios =
+ folio_batch_count(&ceph_wbc.fbatch);
+ goto process_folio_batch;
+ }
/*
* We stop writing back only if we are not doing
@@ -1235,58 +1721,44 @@ new_request:
* we tagged for writeback prior to entering this loop.
*/
if (wbc->nr_to_write <= 0 && wbc->sync_mode == WB_SYNC_NONE)
- done = true;
+ ceph_wbc.done = true;
-release_pvec_pages:
- dout("pagevec_release on %d pages (%p)\n", (int)pvec.nr,
- pvec.nr ? pvec.pages[0] : NULL);
- pagevec_release(&pvec);
+release_folios:
+ doutc(cl, "folio_batch release on %d folios (%p)\n",
+ (int)ceph_wbc.fbatch.nr,
+ ceph_wbc.fbatch.nr ? ceph_wbc.fbatch.folios[0] : NULL);
+ folio_batch_release(&ceph_wbc.fbatch);
}
- if (should_loop && !done) {
+ if (ceph_wbc.should_loop && !ceph_wbc.done) {
/* more to do; loop back to beginning of file */
- dout("writepages looping back to beginning of file\n");
- end = start_index - 1; /* OK even when start_index == 0 */
+ doutc(cl, "looping back to beginning of file\n");
+ /* OK even when start_index == 0 */
+ ceph_wbc.end = ceph_wbc.start_index - 1;
/* to write dirty pages associated with next snapc,
* we need to wait until current writes complete */
- if (wbc->sync_mode != WB_SYNC_NONE &&
- start_index == 0 && /* all dirty pages were checked */
- !ceph_wbc.head_snapc) {
- struct page *page;
- unsigned i, nr;
- index = 0;
- while ((index <= end) &&
- (nr = pagevec_lookup_tag(&pvec, mapping, &index,
- PAGECACHE_TAG_WRITEBACK))) {
- for (i = 0; i < nr; i++) {
- page = pvec.pages[i];
- if (page_snap_context(page) != snapc)
- continue;
- wait_on_page_writeback(page);
- }
- pagevec_release(&pvec);
- cond_resched();
- }
- }
+ ceph_wait_until_current_writes_complete(mapping, wbc, &ceph_wbc);
- start_index = 0;
- index = 0;
+ ceph_wbc.start_index = 0;
+ ceph_wbc.index = 0;
goto retry;
}
- if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
- mapping->writeback_index = index;
+ if (wbc->range_cyclic || (ceph_wbc.range_whole && wbc->nr_to_write > 0))
+ mapping->writeback_index = ceph_wbc.index;
+
+dec_osd_stopping_blocker:
+ ceph_dec_osd_stopping_blocker(fsc->mdsc);
out:
- ceph_osdc_put_request(req);
- ceph_put_snap_context(last_snapc);
- dout("writepages dend - startone, rc = %d\n", rc);
+ ceph_put_snap_context(ceph_wbc.last_snapc);
+ doutc(cl, "%llx.%llx dend - startone, rc = %d\n", ceph_vinop(inode),
+ rc);
+
return rc;
}
-
-
/*
* See if a given @snapc is either writeable, or already written.
*/
@@ -1300,205 +1772,167 @@ static int context_is_writeable_or_written(struct inode *inode,
return ret;
}
-/*
- * We are only allowed to write into/dirty the page if the page is
- * clean, or already dirty within the same snap context.
+/**
+ * ceph_find_incompatible - find an incompatible context and return it
+ * @folio: folio being dirtied
+ *
+ * We are only allowed to write into/dirty a folio if the folio is
+ * clean, or already dirty within the same snap context. Returns a
+ * conflicting context if there is one, NULL if there isn't, or a
+ * negative error code on other errors.
*
- * called with page locked.
- * return success with page locked,
- * or any failure (incl -EAGAIN) with page unlocked.
+ * Must be called with folio lock held.
*/
-static int ceph_update_writeable_page(struct file *file,
- loff_t pos, unsigned len,
- struct page *page)
+static struct ceph_snap_context *
+ceph_find_incompatible(struct folio *folio)
{
- struct inode *inode = file_inode(file);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+ struct inode *inode = folio->mapping->host;
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
- loff_t page_off = pos & PAGE_MASK;
- int pos_in_page = pos & ~PAGE_MASK;
- int end_in_page = pos_in_page + len;
- loff_t i_size;
- int r;
- struct ceph_snap_context *snapc, *oldest;
- if (READ_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
- dout(" page %p forced umount\n", page);
- unlock_page(page);
- return -EIO;
+ if (ceph_inode_is_shutdown(inode)) {
+ doutc(cl, " %llx.%llx folio %p is shutdown\n",
+ ceph_vinop(inode), folio);
+ return ERR_PTR(-ESTALE);
}
-retry_locked:
- /* writepages currently holds page lock, but if we change that later, */
- wait_on_page_writeback(page);
+ for (;;) {
+ struct ceph_snap_context *snapc, *oldest;
+
+ folio_wait_writeback(folio);
+
+ snapc = page_snap_context(&folio->page);
+ if (!snapc || snapc == ci->i_head_snapc)
+ break;
- snapc = page_snap_context(page);
- if (snapc && snapc != ci->i_head_snapc) {
/*
- * this page is already dirty in another (older) snap
+ * this folio is already dirty in another (older) snap
* context! is it writeable now?
*/
oldest = get_oldest_context(inode, NULL, NULL);
if (snapc->seq > oldest->seq) {
+ /* not writeable -- return it for the caller to deal with */
ceph_put_snap_context(oldest);
- dout(" page %p snapc %p not current or oldest\n",
- page, snapc);
- /*
- * queue for writeback, and wait for snapc to
- * be writeable or written
- */
- snapc = ceph_get_snap_context(snapc);
- unlock_page(page);
- ceph_queue_writeback(inode);
- r = wait_event_killable(ci->i_cap_wq,
- context_is_writeable_or_written(inode, snapc));
- ceph_put_snap_context(snapc);
- if (r == -ERESTARTSYS)
- return r;
- return -EAGAIN;
+ doutc(cl, " %llx.%llx folio %p snapc %p not current or oldest\n",
+ ceph_vinop(inode), folio, snapc);
+ return ceph_get_snap_context(snapc);
}
ceph_put_snap_context(oldest);
- /* yay, writeable, do it now (without dropping page lock) */
- dout(" page %p snapc %p not current, but oldest\n",
- page, snapc);
- if (!clear_page_dirty_for_io(page))
- goto retry_locked;
- r = writepage_nounlock(page, NULL);
- if (r < 0)
- goto fail_unlock;
- goto retry_locked;
- }
-
- if (PageUptodate(page)) {
- dout(" page %p already uptodate\n", page);
- return 0;
+ /* yay, writeable, do it now (without dropping folio lock) */
+ doutc(cl, " %llx.%llx folio %p snapc %p not current, but oldest\n",
+ ceph_vinop(inode), folio, snapc);
+ if (folio_clear_dirty_for_io(folio)) {
+ int r = write_folio_nounlock(folio, NULL);
+ if (r < 0)
+ return ERR_PTR(r);
+ }
}
+ return NULL;
+}
- /* full page? */
- if (pos_in_page == 0 && len == PAGE_SIZE)
- return 0;
-
- /* past end of file? */
- i_size = i_size_read(inode);
-
- if (page_off >= i_size ||
- (pos_in_page == 0 && (pos+len) >= i_size &&
- end_in_page - pos_in_page != PAGE_SIZE)) {
- dout(" zeroing %p 0 - %d and %d - %d\n",
- page, pos_in_page, end_in_page, (int)PAGE_SIZE);
- zero_user_segments(page,
- 0, pos_in_page,
- end_in_page, PAGE_SIZE);
- return 0;
- }
+static int ceph_netfs_check_write_begin(struct file *file, loff_t pos, unsigned int len,
+ struct folio **foliop, void **_fsdata)
+{
+ struct inode *inode = file_inode(file);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_snap_context *snapc;
- /* we need to read it. */
- r = ceph_do_readpage(file, page);
- if (r < 0) {
- if (r == -EINPROGRESS)
- return -EAGAIN;
- goto fail_unlock;
+ snapc = ceph_find_incompatible(*foliop);
+ if (snapc) {
+ int r;
+
+ folio_unlock(*foliop);
+ folio_put(*foliop);
+ *foliop = NULL;
+ if (IS_ERR(snapc))
+ return PTR_ERR(snapc);
+
+ ceph_queue_writeback(inode);
+ r = wait_event_killable(ci->i_cap_wq,
+ context_is_writeable_or_written(inode, snapc));
+ ceph_put_snap_context(snapc);
+ return r == 0 ? -EAGAIN : r;
}
- goto retry_locked;
-fail_unlock:
- unlock_page(page);
- return r;
+ return 0;
}
/*
* We are only allowed to write into/dirty the page if the page is
* clean, or already dirty within the same snap context.
*/
-static int ceph_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
+static int ceph_write_begin(const struct kiocb *iocb,
+ struct address_space *mapping,
+ loff_t pos, unsigned len,
+ struct folio **foliop, void **fsdata)
{
+ struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
- struct page *page;
- pgoff_t index = pos >> PAGE_SHIFT;
+ struct ceph_inode_info *ci = ceph_inode(inode);
int r;
- do {
- /* get a page */
- page = grab_cache_page_write_begin(mapping, index, 0);
- if (!page)
- return -ENOMEM;
-
- dout("write_begin file %p inode %p page %p %d~%d\n", file,
- inode, page, (int)pos, (int)len);
-
- r = ceph_update_writeable_page(file, pos, len, page);
- if (r < 0)
- put_page(page);
- else
- *pagep = page;
- } while (r == -EAGAIN);
+ r = netfs_write_begin(&ci->netfs, file, inode->i_mapping, pos, len, foliop, NULL);
+ if (r < 0)
+ return r;
- return r;
+ folio_wait_private_2(*foliop); /* [DEPRECATED] */
+ WARN_ON_ONCE(!folio_test_locked(*foliop));
+ return 0;
}
/*
* we don't do anything in here that simple_write_end doesn't do
* except adjust dirty page accounting
*/
-static int ceph_write_end(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+static int ceph_write_end(const struct kiocb *iocb,
+ struct address_space *mapping, loff_t pos,
+ unsigned len, unsigned copied,
+ struct folio *folio, void *fsdata)
{
+ struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
bool check_cap = false;
- dout("write_end file %p inode %p page %p %d~%d (%d)\n", file,
- inode, page, (int)pos, (int)copied, (int)len);
+ doutc(cl, "%llx.%llx file %p folio %p %d~%d (%d)\n", ceph_vinop(inode),
+ file, folio, (int)pos, (int)copied, (int)len);
- /* zero the stale part of the page if we did a short copy */
- if (!PageUptodate(page)) {
+ if (!folio_test_uptodate(folio)) {
+ /* just return that nothing was copied on a short copy */
if (copied < len) {
copied = 0;
goto out;
}
- SetPageUptodate(page);
+ folio_mark_uptodate(folio);
}
/* did file size increase? */
if (pos+copied > i_size_read(inode))
check_cap = ceph_inode_set_size(inode, pos+copied);
- set_page_dirty(page);
+ folio_mark_dirty(folio);
out:
- unlock_page(page);
- put_page(page);
+ folio_unlock(folio);
+ folio_put(folio);
if (check_cap)
- ceph_check_caps(ceph_inode(inode), CHECK_CAPS_AUTHONLY, NULL);
+ ceph_check_caps(ceph_inode(inode), CHECK_CAPS_AUTHONLY);
return copied;
}
-/*
- * we set .direct_IO to indicate direct io is supported, but since we
- * intercept O_DIRECT reads and writes early, this function should
- * never get called.
- */
-static ssize_t ceph_direct_io(struct kiocb *iocb, struct iov_iter *iter)
-{
- WARN_ON(1);
- return -EINVAL;
-}
-
const struct address_space_operations ceph_aops = {
- .readpage = ceph_readpage,
- .readpages = ceph_readpages,
- .writepage = ceph_writepage,
+ .read_folio = netfs_read_folio,
+ .readahead = netfs_readahead,
.writepages = ceph_writepages_start,
.write_begin = ceph_write_begin,
.write_end = ceph_write_end,
- .set_page_dirty = ceph_set_page_dirty,
- .invalidatepage = ceph_invalidatepage,
- .releasepage = ceph_releasepage,
- .direct_IO = ceph_direct_io,
+ .dirty_folio = ceph_dirty_folio,
+ .invalidate_folio = ceph_invalidate_folio,
+ .release_folio = netfs_release_folio,
+ .direct_IO = noop_direct_IO,
+ .migrate_folio = filemap_migrate_folio,
};
static void ceph_block_sigs(sigset_t *oldset)
@@ -1521,45 +1955,44 @@ static vm_fault_t ceph_filemap_fault(struct vm_fault *vmf)
struct vm_area_struct *vma = vmf->vma;
struct inode *inode = file_inode(vma->vm_file);
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_file_info *fi = vma->vm_file->private_data;
- struct page *pinned_page = NULL;
- loff_t off = vmf->pgoff << PAGE_SHIFT;
+ loff_t off = (loff_t)vmf->pgoff << PAGE_SHIFT;
int want, got, err;
sigset_t oldset;
vm_fault_t ret = VM_FAULT_SIGBUS;
+ if (ceph_inode_is_shutdown(inode))
+ return ret;
+
ceph_block_sigs(&oldset);
- dout("filemap_fault %p %llx.%llx %llu~%zd trying to get caps\n",
- inode, ceph_vinop(inode), off, (size_t)PAGE_SIZE);
+ doutc(cl, "%llx.%llx %llu trying to get caps\n",
+ ceph_vinop(inode), off);
if (fi->fmode & CEPH_FILE_MODE_LAZY)
want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO;
else
want = CEPH_CAP_FILE_CACHE;
got = 0;
- err = ceph_get_caps(vma->vm_file, CEPH_CAP_FILE_RD, want, -1,
- &got, &pinned_page);
+ err = ceph_get_caps(vma->vm_file, CEPH_CAP_FILE_RD, want, -1, &got);
if (err < 0)
goto out_restore;
- dout("filemap_fault %p %llu~%zd got cap refs on %s\n",
- inode, off, (size_t)PAGE_SIZE, ceph_cap_string(got));
+ doutc(cl, "%llx.%llx %llu got cap refs on %s\n", ceph_vinop(inode),
+ off, ceph_cap_string(got));
if ((got & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) ||
- ci->i_inline_version == CEPH_INLINE_NONE) {
+ !ceph_has_inline_data(ci)) {
CEPH_DEFINE_RW_CONTEXT(rw_ctx, got);
ceph_add_rw_context(fi, &rw_ctx);
ret = filemap_fault(vmf);
ceph_del_rw_context(fi, &rw_ctx);
- dout("filemap_fault %p %llu~%zd drop cap refs %s ret %x\n",
- inode, off, (size_t)PAGE_SIZE,
- ceph_cap_string(got), ret);
+ doutc(cl, "%llx.%llx %llu drop cap refs %s ret %x\n",
+ ceph_vinop(inode), off, ceph_cap_string(got), ret);
} else
err = -EAGAIN;
- if (pinned_page)
- put_page(pinned_page);
ceph_put_cap_refs(ci, got);
if (err != -EAGAIN)
@@ -1571,9 +2004,11 @@ static vm_fault_t ceph_filemap_fault(struct vm_fault *vmf)
ret = VM_FAULT_SIGBUS;
} else {
struct address_space *mapping = inode->i_mapping;
- struct page *page = find_or_create_page(mapping, 0,
- mapping_gfp_constraint(mapping,
- ~__GFP_FS));
+ struct page *page;
+
+ filemap_invalidate_lock_shared(mapping);
+ page = find_or_create_page(mapping, 0,
+ mapping_gfp_constraint(mapping, ~__GFP_FS));
if (!page) {
ret = VM_FAULT_OOM;
goto out_inline;
@@ -1594,8 +2029,9 @@ static vm_fault_t ceph_filemap_fault(struct vm_fault *vmf)
vmf->page = page;
ret = VM_FAULT_MAJOR | VM_FAULT_LOCKED;
out_inline:
- dout("filemap_fault %p %llu~%zd read inline data ret %x\n",
- inode, off, (size_t)PAGE_SIZE, ret);
+ filemap_invalidate_unlock_shared(mapping);
+ doutc(cl, "%llx.%llx %llu read inline data ret %x\n",
+ ceph_vinop(inode), off, ret);
}
out_restore:
ceph_restore_sigs(&oldset);
@@ -1605,24 +2041,25 @@ out_restore:
return ret;
}
-/*
- * Reuse write_begin here for simplicity.
- */
static vm_fault_t ceph_page_mkwrite(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct inode *inode = file_inode(vma->vm_file);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_file_info *fi = vma->vm_file->private_data;
struct ceph_cap_flush *prealloc_cf;
- struct page *page = vmf->page;
- loff_t off = page_offset(page);
+ struct folio *folio = page_folio(vmf->page);
+ loff_t off = folio_pos(folio);
loff_t size = i_size_read(inode);
size_t len;
int want, got, err;
sigset_t oldset;
vm_fault_t ret = VM_FAULT_SIGBUS;
+ if (ceph_inode_is_shutdown(inode))
+ return ret;
+
prealloc_cf = ceph_alloc_cap_flush();
if (!prealloc_cf)
return VM_FAULT_OOM;
@@ -1630,66 +2067,65 @@ static vm_fault_t ceph_page_mkwrite(struct vm_fault *vmf)
sb_start_pagefault(inode->i_sb);
ceph_block_sigs(&oldset);
- if (ci->i_inline_version != CEPH_INLINE_NONE) {
- struct page *locked_page = NULL;
- if (off == 0) {
- lock_page(page);
- locked_page = page;
- }
- err = ceph_uninline_data(vma->vm_file, locked_page);
- if (locked_page)
- unlock_page(locked_page);
- if (err < 0)
- goto out_free;
- }
-
- if (off + PAGE_SIZE <= size)
- len = PAGE_SIZE;
+ if (off + folio_size(folio) <= size)
+ len = folio_size(folio);
else
- len = size & ~PAGE_MASK;
+ len = offset_in_folio(folio, size);
- dout("page_mkwrite %p %llx.%llx %llu~%zd getting caps i_size %llu\n",
- inode, ceph_vinop(inode), off, len, size);
+ doutc(cl, "%llx.%llx %llu~%zd getting caps i_size %llu\n",
+ ceph_vinop(inode), off, len, size);
if (fi->fmode & CEPH_FILE_MODE_LAZY)
want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO;
else
want = CEPH_CAP_FILE_BUFFER;
got = 0;
- err = ceph_get_caps(vma->vm_file, CEPH_CAP_FILE_WR, want, off + len,
- &got, NULL);
+ err = ceph_get_caps(vma->vm_file, CEPH_CAP_FILE_WR, want, off + len, &got);
if (err < 0)
goto out_free;
- dout("page_mkwrite %p %llu~%zd got cap refs on %s\n",
- inode, off, len, ceph_cap_string(got));
+ doutc(cl, "%llx.%llx %llu~%zd got cap refs on %s\n", ceph_vinop(inode),
+ off, len, ceph_cap_string(got));
- /* Update time before taking page lock */
+ /* Update time before taking folio lock */
file_update_time(vma->vm_file);
inode_inc_iversion_raw(inode);
do {
- lock_page(page);
+ struct ceph_snap_context *snapc;
- if (page_mkwrite_check_truncate(page, inode) < 0) {
- unlock_page(page);
+ folio_lock(folio);
+
+ if (folio_mkwrite_check_truncate(folio, inode) < 0) {
+ folio_unlock(folio);
ret = VM_FAULT_NOPAGE;
break;
}
- err = ceph_update_writeable_page(vma->vm_file, off, len, page);
- if (err >= 0) {
- /* success. we'll keep the page locked. */
- set_page_dirty(page);
+ snapc = ceph_find_incompatible(folio);
+ if (!snapc) {
+ /* success. we'll keep the folio locked. */
+ folio_mark_dirty(folio);
ret = VM_FAULT_LOCKED;
+ break;
+ }
+
+ folio_unlock(folio);
+
+ if (IS_ERR(snapc)) {
+ ret = VM_FAULT_SIGBUS;
+ break;
}
- } while (err == -EAGAIN);
- if (ret == VM_FAULT_LOCKED ||
- ci->i_inline_version != CEPH_INLINE_NONE) {
+ ceph_queue_writeback(inode);
+ err = wait_event_killable(ci->i_cap_wq,
+ context_is_writeable_or_written(inode, snapc));
+ ceph_put_snap_context(snapc);
+ } while (err == 0);
+
+ if (ret == VM_FAULT_LOCKED) {
int dirty;
spin_lock(&ci->i_ceph_lock);
- ci->i_inline_version = CEPH_INLINE_NONE;
dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR,
&prealloc_cf);
spin_unlock(&ci->i_ceph_lock);
@@ -1697,9 +2133,9 @@ static vm_fault_t ceph_page_mkwrite(struct vm_fault *vmf)
__mark_inode_dirty(inode, dirty);
}
- dout("page_mkwrite %p %llu~%zd dropping cap refs on %s ret %x\n",
- inode, off, len, ceph_cap_string(got), ret);
- ceph_put_cap_refs(ci, got);
+ doutc(cl, "%llx.%llx %llu~%zd dropping cap refs on %s ret %x\n",
+ ceph_vinop(inode), off, len, ceph_cap_string(got), ret);
+ ceph_put_cap_refs_async(ci, got);
out_free:
ceph_restore_sigs(&oldset);
sb_end_pagefault(inode->i_sb);
@@ -1712,6 +2148,7 @@ out_free:
void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
char *data, size_t len)
{
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct address_space *mapping = inode->i_mapping;
struct page *page;
@@ -1732,8 +2169,8 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
}
}
- dout("fill_inline_data %p %llx.%llx len %zu locked_page %p\n",
- inode, ceph_vinop(inode), len, locked_page);
+ doutc(cl, "%p %llx.%llx len %zu locked_page %p\n", inode,
+ ceph_vinop(inode), len, locked_page);
if (len > 0) {
void *kaddr = kmap_atomic(page);
@@ -1753,82 +2190,69 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
}
}
-int ceph_uninline_data(struct file *filp, struct page *locked_page)
+int ceph_uninline_data(struct file *file)
{
- struct inode *inode = file_inode(filp);
+ struct inode *inode = file_inode(file);
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_osd_request *req;
- struct page *page = NULL;
- u64 len, inline_version;
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(inode);
+ struct ceph_client *cl = fsc->client;
+ struct ceph_osd_request *req = NULL;
+ struct ceph_cap_flush *prealloc_cf = NULL;
+ struct folio *folio = NULL;
+ u64 inline_version = CEPH_INLINE_NONE;
+ struct page *pages[1];
int err = 0;
- bool from_pagecache = false;
+ u64 len;
spin_lock(&ci->i_ceph_lock);
inline_version = ci->i_inline_version;
spin_unlock(&ci->i_ceph_lock);
- dout("uninline_data %p %llx.%llx inline_version %llu\n",
- inode, ceph_vinop(inode), inline_version);
+ doutc(cl, "%llx.%llx inline_version %llu\n", ceph_vinop(inode),
+ inline_version);
- if (inline_version == 1 || /* initial version, no data */
- inline_version == CEPH_INLINE_NONE)
+ if (ceph_inode_is_shutdown(inode)) {
+ err = -EIO;
goto out;
-
- if (locked_page) {
- page = locked_page;
- WARN_ON(!PageUptodate(page));
- } else if (ceph_caps_issued(ci) &
- (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) {
- page = find_get_page(inode->i_mapping, 0);
- if (page) {
- if (PageUptodate(page)) {
- from_pagecache = true;
- lock_page(page);
- } else {
- put_page(page);
- page = NULL;
- }
- }
}
- if (page) {
- len = i_size_read(inode);
- if (len > PAGE_SIZE)
- len = PAGE_SIZE;
- } else {
- page = __page_cache_alloc(GFP_NOFS);
- if (!page) {
- err = -ENOMEM;
- goto out;
- }
- err = __ceph_do_getattr(inode, page,
- CEPH_STAT_CAP_INLINE_DATA, true);
- if (err < 0) {
- /* no inline data */
- if (err == -ENODATA)
- err = 0;
- goto out;
- }
- len = err;
+ if (inline_version == CEPH_INLINE_NONE)
+ return 0;
+
+ prealloc_cf = ceph_alloc_cap_flush();
+ if (!prealloc_cf)
+ return -ENOMEM;
+
+ if (inline_version == 1) /* initial version, no data */
+ goto out_uninline;
+
+ folio = read_mapping_folio(inode->i_mapping, 0, file);
+ if (IS_ERR(folio)) {
+ err = PTR_ERR(folio);
+ goto out;
}
+ folio_lock(folio);
+
+ len = i_size_read(inode);
+ if (len > folio_size(folio))
+ len = folio_size(folio);
+
req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout,
ceph_vino(inode), 0, &len, 0, 1,
CEPH_OSD_OP_CREATE, CEPH_OSD_FLAG_WRITE,
NULL, 0, 0, false);
if (IS_ERR(req)) {
err = PTR_ERR(req);
- goto out;
+ goto out_unlock;
}
- req->r_mtime = inode->i_mtime;
- err = ceph_osdc_start_request(&fsc->client->osdc, req, false);
- if (!err)
- err = ceph_osdc_wait_request(&fsc->client->osdc, req);
+ req->r_mtime = inode_get_mtime(inode);
+ ceph_osdc_start_request(&fsc->client->osdc, req);
+ err = ceph_osdc_wait_request(&fsc->client->osdc, req);
ceph_osdc_put_request(req);
if (err < 0)
- goto out;
+ goto out_unlock;
req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout,
ceph_vino(inode), 0, &len, 1, 3,
@@ -1837,10 +2261,11 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
ci->i_truncate_size, false);
if (IS_ERR(req)) {
err = PTR_ERR(req);
- goto out;
+ goto out_unlock;
}
- osd_req_op_extent_osd_data_pages(req, 1, &page, len, 0, false, false);
+ pages[0] = folio_page(folio, 0);
+ osd_req_op_extent_osd_data_pages(req, 1, pages, len, 0, false, false);
{
__le64 xattr_buf = cpu_to_le64(inline_version);
@@ -1850,7 +2275,7 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
CEPH_OSD_CMPXATTR_OP_GT,
CEPH_OSD_CMPXATTR_MODE_U64);
if (err)
- goto out_put;
+ goto out_put_req;
}
{
@@ -1861,32 +2286,43 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
"inline_version",
xattr_buf, xattr_len, 0, 0);
if (err)
- goto out_put;
+ goto out_put_req;
}
- req->r_mtime = inode->i_mtime;
- err = ceph_osdc_start_request(&fsc->client->osdc, req, false);
- if (!err)
- err = ceph_osdc_wait_request(&fsc->client->osdc, req);
+ req->r_mtime = inode_get_mtime(inode);
+ ceph_osdc_start_request(&fsc->client->osdc, req);
+ err = ceph_osdc_wait_request(&fsc->client->osdc, req);
- ceph_update_write_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, err);
+ ceph_update_write_metrics(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, len, err);
-out_put:
+out_uninline:
+ if (!err) {
+ int dirty;
+
+ /* Set to CAP_INLINE_NONE and dirty the caps */
+ down_read(&fsc->mdsc->snap_rwsem);
+ spin_lock(&ci->i_ceph_lock);
+ ci->i_inline_version = CEPH_INLINE_NONE;
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR, &prealloc_cf);
+ spin_unlock(&ci->i_ceph_lock);
+ up_read(&fsc->mdsc->snap_rwsem);
+ if (dirty)
+ __mark_inode_dirty(inode, dirty);
+ }
+out_put_req:
ceph_osdc_put_request(req);
if (err == -ECANCELED)
err = 0;
-out:
- if (page && page != locked_page) {
- if (from_pagecache) {
- unlock_page(page);
- put_page(page);
- } else
- __free_pages(page, 0);
+out_unlock:
+ if (folio) {
+ folio_unlock(folio);
+ folio_put(folio);
}
-
- dout("uninline_data %p %llx.%llx inline_version %llu = %d\n",
- inode, ceph_vinop(inode), inline_version, err);
+out:
+ ceph_free_cap_flush(prealloc_cf);
+ doutc(cl, "%llx.%llx inline_version %llu = %d\n",
+ ceph_vinop(inode), inline_version, err);
return err;
}
@@ -1895,14 +2331,13 @@ static const struct vm_operations_struct ceph_vmops = {
.page_mkwrite = ceph_page_mkwrite,
};
-int ceph_mmap(struct file *file, struct vm_area_struct *vma)
+int ceph_mmap_prepare(struct vm_area_desc *desc)
{
- struct address_space *mapping = file->f_mapping;
+ struct address_space *mapping = desc->file->f_mapping;
- if (!mapping->a_ops->readpage)
+ if (!mapping->a_ops->read_folio)
return -ENOEXEC;
- file_accessed(file);
- vma->vm_ops = &ceph_vmops;
+ desc->vm_ops = &ceph_vmops;
return 0;
}
@@ -1914,8 +2349,9 @@ enum {
static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
s64 pool, struct ceph_string *pool_ns)
{
- struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->vfs_inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_fs_client(&ci->netfs.inode);
struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_client *cl = fsc->client;
struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
struct rb_node **p, *parent;
struct ceph_pool_perm *perm;
@@ -1950,10 +2386,10 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
goto out;
if (pool_ns)
- dout("__ceph_pool_perm_get pool %lld ns %.*s no perm cached\n",
- pool, (int)pool_ns->len, pool_ns->str);
+ doutc(cl, "pool %lld ns %.*s no perm cached\n", pool,
+ (int)pool_ns->len, pool_ns->str);
else
- dout("__ceph_pool_perm_get pool %lld no perm cached\n", pool);
+ doutc(cl, "pool %lld no perm cached\n", pool);
down_write(&mdsc->pool_perm_rwsem);
p = &mdsc->pool_perm_tree.rb_node;
@@ -2027,35 +2463,33 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
osd_req_op_raw_data_in_pages(rd_req, 0, pages, PAGE_SIZE,
0, false, true);
- err = ceph_osdc_start_request(&fsc->client->osdc, rd_req, false);
+ ceph_osdc_start_request(&fsc->client->osdc, rd_req);
- wr_req->r_mtime = ci->vfs_inode.i_mtime;
- err2 = ceph_osdc_start_request(&fsc->client->osdc, wr_req, false);
+ wr_req->r_mtime = inode_get_mtime(&ci->netfs.inode);
+ ceph_osdc_start_request(&fsc->client->osdc, wr_req);
- if (!err)
- err = ceph_osdc_wait_request(&fsc->client->osdc, rd_req);
- if (!err2)
- err2 = ceph_osdc_wait_request(&fsc->client->osdc, wr_req);
+ err = ceph_osdc_wait_request(&fsc->client->osdc, rd_req);
+ err2 = ceph_osdc_wait_request(&fsc->client->osdc, wr_req);
if (err >= 0 || err == -ENOENT)
have |= POOL_READ;
else if (err != -EPERM) {
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err == -EBLOCKLISTED)
+ fsc->blocklisted = true;
goto out_unlock;
}
if (err2 == 0 || err2 == -EEXIST)
have |= POOL_WRITE;
else if (err2 != -EPERM) {
- if (err2 == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err2 == -EBLOCKLISTED)
+ fsc->blocklisted = true;
err = err2;
goto out_unlock;
}
pool_ns_len = pool_ns ? pool_ns->len : 0;
- perm = kmalloc(sizeof(*perm) + pool_ns_len + 1, GFP_NOFS);
+ perm = kmalloc(struct_size(perm, pool_ns, pool_ns_len + 1), GFP_NOFS);
if (!perm) {
err = -ENOMEM;
goto out_unlock;
@@ -2080,30 +2514,35 @@ out:
if (!err)
err = have;
if (pool_ns)
- dout("__ceph_pool_perm_get pool %lld ns %.*s result = %d\n",
- pool, (int)pool_ns->len, pool_ns->str, err);
+ doutc(cl, "pool %lld ns %.*s result = %d\n", pool,
+ (int)pool_ns->len, pool_ns->str, err);
else
- dout("__ceph_pool_perm_get pool %lld result = %d\n", pool, err);
+ doutc(cl, "pool %lld result = %d\n", pool, err);
return err;
}
int ceph_pool_perm_check(struct inode *inode, int need)
{
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_string *pool_ns;
s64 pool;
int ret, flags;
+ /* Only need to do this for regular files */
+ if (!S_ISREG(inode->i_mode))
+ return 0;
+
if (ci->i_vino.snap != CEPH_NOSNAP) {
/*
* Pool permission check needs to write to the first object.
- * But for snapshot, head of the first object may have alread
+ * But for snapshot, head of the first object may have already
* been deleted. Skip check to avoid creating orphan object.
*/
return 0;
}
- if (ceph_test_mount_opt(ceph_inode_to_client(inode),
+ if (ceph_test_mount_opt(ceph_inode_to_fs_client(inode),
NOPOOLPERM))
return 0;
@@ -2114,13 +2553,11 @@ int ceph_pool_perm_check(struct inode *inode, int need)
check:
if (flags & CEPH_I_POOL_PERM) {
if ((need & CEPH_CAP_FILE_RD) && !(flags & CEPH_I_POOL_RD)) {
- dout("ceph_pool_perm_check pool %lld no read perm\n",
- pool);
+ doutc(cl, "pool %lld no read perm\n", pool);
return -EPERM;
}
if ((need & CEPH_CAP_FILE_WR) && !(flags & CEPH_I_POOL_WR)) {
- dout("ceph_pool_perm_check pool %lld no write perm\n",
- pool);
+ doutc(cl, "pool %lld no write perm\n", pool);
return -EPERM;
}
return 0;
generated by cgit (git 2.34.1) at 2025-12-25 19:27:40 +0000