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Diffstat (limited to 'fs/nfs/file.c')
-rw-r--r--fs/nfs/file.c53
1 files changed, 32 insertions, 21 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 407c6e15afe2..033feeab8c34 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -29,6 +29,7 @@
#include <linux/pagemap.h>
#include <linux/gfp.h>
#include <linux/swap.h>
+#include <linux/compaction.h>
#include <linux/uaccess.h>
#include <linux/filelock.h>
@@ -166,7 +167,10 @@ nfs_file_read(struct kiocb *iocb, struct iov_iter *to)
iocb->ki_filp,
iov_iter_count(to), (unsigned long) iocb->ki_pos);
- nfs_start_io_read(inode);
+ result = nfs_start_io_read(inode);
+ if (result)
+ return result;
+
result = nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
if (!result) {
result = generic_file_read_iter(iocb, to);
@@ -187,7 +191,10 @@ nfs_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe
dprintk("NFS: splice_read(%pD2, %zu@%llu)\n", in, len, *ppos);
- nfs_start_io_read(inode);
+ result = nfs_start_io_read(inode);
+ if (result)
+ return result;
+
result = nfs_revalidate_mapping(inode, in->f_mapping);
if (!result) {
result = filemap_splice_read(in, ppos, pipe, len, flags);
@@ -336,9 +343,10 @@ static bool nfs_want_read_modify_write(struct file *file, struct folio *folio,
* increment the page use counts until he is done with the page.
*/
static int nfs_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, struct page **pagep,
+ loff_t pos, unsigned len, struct folio **foliop,
void **fsdata)
{
+ fgf_t fgp = FGP_WRITEBEGIN;
struct folio *folio;
int once_thru = 0;
int ret;
@@ -346,12 +354,13 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
dfprintk(PAGECACHE, "NFS: write_begin(%pD2(%lu), %u@%lld)\n",
file, mapping->host->i_ino, len, (long long) pos);
+ fgp |= fgf_set_order(len);
start:
- folio = __filemap_get_folio(mapping, pos >> PAGE_SHIFT, FGP_WRITEBEGIN,
+ folio = __filemap_get_folio(mapping, pos >> PAGE_SHIFT, fgp,
mapping_gfp_mask(mapping));
if (IS_ERR(folio))
return PTR_ERR(folio);
- *pagep = &folio->page;
+ *foliop = folio;
ret = nfs_flush_incompatible(file, folio);
if (ret) {
@@ -370,10 +379,9 @@ start:
static int nfs_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct folio *folio, void *fsdata)
{
struct nfs_open_context *ctx = nfs_file_open_context(file);
- struct folio *folio = page_folio(page);
unsigned offset = offset_in_folio(folio, pos);
int status;
@@ -425,7 +433,7 @@ static int nfs_write_end(struct file *file, struct address_space *mapping,
static void nfs_invalidate_folio(struct folio *folio, size_t offset,
size_t length)
{
- struct inode *inode = folio_file_mapping(folio)->host;
+ struct inode *inode = folio->mapping->host;
dfprintk(PAGECACHE, "NFS: invalidate_folio(%lu, %zu, %zu)\n",
folio->index, offset, length);
@@ -433,8 +441,8 @@ static void nfs_invalidate_folio(struct folio *folio, size_t offset,
return;
/* Cancel any unstarted writes on this page */
nfs_wb_folio_cancel(inode, folio);
- folio_wait_fscache(folio);
- trace_nfs_invalidate_folio(inode, folio);
+ folio_wait_private_2(folio); /* [DEPRECATED] */
+ trace_nfs_invalidate_folio(inode, folio_pos(folio) + offset, length);
}
/*
@@ -450,9 +458,9 @@ static bool nfs_release_folio(struct folio *folio, gfp_t gfp)
/* If the private flag is set, then the folio is not freeable */
if (folio_test_private(folio)) {
if ((current_gfp_context(gfp) & GFP_KERNEL) != GFP_KERNEL ||
- current_is_kswapd())
+ current_is_kswapd() || current_is_kcompactd())
return false;
- if (nfs_wb_folio(folio_file_mapping(folio)->host, folio) < 0)
+ if (nfs_wb_folio(folio->mapping->host, folio) < 0)
return false;
}
return nfs_fscache_release_folio(folio, gfp);
@@ -500,9 +508,10 @@ static int nfs_launder_folio(struct folio *folio)
dfprintk(PAGECACHE, "NFS: launder_folio(%ld, %llu)\n",
inode->i_ino, folio_pos(folio));
- folio_wait_fscache(folio);
+ folio_wait_private_2(folio); /* [DEPRECATED] */
ret = nfs_wb_folio(inode, folio);
- trace_nfs_launder_folio_done(inode, folio, ret);
+ trace_nfs_launder_folio_done(inode, folio_pos(folio),
+ folio_size(folio), ret);
return ret;
}
@@ -588,13 +597,13 @@ static vm_fault_t nfs_vm_page_mkwrite(struct vm_fault *vmf)
dfprintk(PAGECACHE, "NFS: vm_page_mkwrite(%pD2(%lu), offset %lld)\n",
filp, filp->f_mapping->host->i_ino,
- (long long)folio_file_pos(folio));
+ (long long)folio_pos(folio));
sb_start_pagefault(inode->i_sb);
/* make sure the cache has finished storing the page */
- if (folio_test_fscache(folio) &&
- folio_wait_fscache_killable(folio) < 0) {
+ if (folio_test_private_2(folio) && /* [DEPRECATED] */
+ folio_wait_private_2_killable(folio) < 0) {
ret = VM_FAULT_RETRY;
goto out;
}
@@ -604,7 +613,7 @@ static vm_fault_t nfs_vm_page_mkwrite(struct vm_fault *vmf)
TASK_KILLABLE|TASK_FREEZABLE_UNSAFE);
folio_lock(folio);
- mapping = folio_file_mapping(folio);
+ mapping = folio->mapping;
if (mapping != inode->i_mapping)
goto out_unlock;
@@ -666,7 +675,9 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from)
nfs_clear_invalid_mapping(file->f_mapping);
since = filemap_sample_wb_err(file->f_mapping);
- nfs_start_io_write(inode);
+ error = nfs_start_io_write(inode);
+ if (error)
+ return error;
result = generic_write_checks(iocb, from);
if (result > 0)
result = generic_perform_write(iocb, from);
@@ -730,7 +741,7 @@ do_getlk(struct file *filp, int cmd, struct file_lock *fl, int is_local)
}
fl->c.flc_type = saved_type;
- if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
+ if (nfs_have_read_or_write_delegation(inode))
goto out_noconflict;
if (is_local)
@@ -813,7 +824,7 @@ do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local)
* This makes locking act as a cache coherency point.
*/
nfs_sync_mapping(filp->f_mapping);
- if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) {
+ if (!nfs_have_read_or_write_delegation(inode)) {
nfs_zap_caches(inode);
if (mapping_mapped(filp->f_mapping))
nfs_revalidate_mapping(inode, filp->f_mapping);
generated by cgit (git 2.34.1) at 2025-07-12 15:37:34 +0000