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Diffstat (limited to 'fs/hfs/inode.c')
-rw-r--r--fs/hfs/inode.c183
1 files changed, 103 insertions, 80 deletions
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index f9299d8a64e3..524db1389737 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -14,7 +14,10 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/sched.h>
-#include <linux/aio.h>
+#include <linux/cred.h>
+#include <linux/uio.h>
+#include <linux/xattr.h>
+#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"
@@ -26,14 +29,9 @@ static const struct inode_operations hfs_file_inode_operations;
#define HFS_VALID_MODE_BITS (S_IFREG | S_IFDIR | S_IRWXUGO)
-static int hfs_writepage(struct page *page, struct writeback_control *wbc)
+static int hfs_read_folio(struct file *file, struct folio *folio)
{
- return block_write_full_page(page, hfs_get_block, wbc);
-}
-
-static int hfs_readpage(struct file *file, struct page *page)
-{
- return block_read_full_page(page, hfs_get_block);
+ return block_read_full_folio(folio, hfs_get_block);
}
static void hfs_write_failed(struct address_space *mapping, loff_t to)
@@ -41,19 +39,18 @@ static void hfs_write_failed(struct address_space *mapping, loff_t to)
struct inode *inode = mapping->host;
if (to > inode->i_size) {
- truncate_pagecache(inode, to, inode->i_size);
+ truncate_pagecache(inode, inode->i_size);
hfs_file_truncate(inode);
}
}
-static int hfs_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
+int hfs_write_begin(const struct kiocb *iocb, struct address_space *mapping,
+ loff_t pos, unsigned int len, struct folio **foliop,
+ void **fsdata)
{
int ret;
- *pagep = NULL;
- ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+ ret = cont_write_begin(iocb, mapping, pos, len, foliop, fsdata,
hfs_get_block,
&HFS_I(mapping->host)->phys_size);
if (unlikely(ret))
@@ -67,14 +64,15 @@ static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping, block, hfs_get_block);
}
-static int hfs_releasepage(struct page *page, gfp_t mask)
+static bool hfs_release_folio(struct folio *folio, gfp_t mask)
{
- struct inode *inode = page->mapping->host;
+ struct inode *inode = folio->mapping->host;
struct super_block *sb = inode->i_sb;
struct hfs_btree *tree;
struct hfs_bnode *node;
u32 nidx;
- int i, res = 1;
+ int i;
+ bool res = true;
switch (inode->i_ino) {
case HFS_EXT_CNID:
@@ -85,35 +83,35 @@ static int hfs_releasepage(struct page *page, gfp_t mask)
break;
default:
BUG();
- return 0;
+ return false;
}
if (!tree)
- return 0;
+ return false;
- if (tree->node_size >= PAGE_CACHE_SIZE) {
- nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
+ if (tree->node_size >= PAGE_SIZE) {
+ nidx = folio->index >> (tree->node_size_shift - PAGE_SHIFT);
spin_lock(&tree->hash_lock);
node = hfs_bnode_findhash(tree, nidx);
if (!node)
;
else if (atomic_read(&node->refcnt))
- res = 0;
+ res = false;
if (res && node) {
hfs_bnode_unhash(node);
hfs_bnode_free(node);
}
spin_unlock(&tree->hash_lock);
} else {
- nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
- i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
+ nidx = folio->index << (PAGE_SHIFT - tree->node_size_shift);
+ i = 1 << (PAGE_SHIFT - tree->node_size_shift);
spin_lock(&tree->hash_lock);
do {
node = hfs_bnode_findhash(tree, nidx++);
if (!node)
continue;
if (atomic_read(&node->refcnt)) {
- res = 0;
+ res = false;
break;
}
hfs_bnode_unhash(node);
@@ -121,27 +119,26 @@ static int hfs_releasepage(struct page *page, gfp_t mask)
} while (--i && nidx < tree->node_count);
spin_unlock(&tree->hash_lock);
}
- return res ? try_to_free_buffers(page) : 0;
+ return res ? try_to_free_buffers(folio) : false;
}
-static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
- const struct iovec *iov, loff_t offset, unsigned long nr_segs)
+static ssize_t hfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
- struct inode *inode = file_inode(file)->i_mapping->host;
+ struct inode *inode = mapping->host;
+ size_t count = iov_iter_count(iter);
ssize_t ret;
- ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
- hfs_get_block);
+ ret = blockdev_direct_IO(iocb, inode, iter, hfs_get_block);
/*
* In case of error extending write may have instantiated a few
* blocks outside i_size. Trim these off again.
*/
- if (unlikely((rw & WRITE) && ret < 0)) {
+ if (unlikely(iov_iter_rw(iter) == WRITE && ret < 0)) {
loff_t isize = i_size_read(inode);
- loff_t end = offset + iov_length(iov, nr_segs);
+ loff_t end = iocb->ki_pos + count;
if (end > isize)
hfs_write_failed(mapping, end);
@@ -157,49 +154,63 @@ static int hfs_writepages(struct address_space *mapping,
}
const struct address_space_operations hfs_btree_aops = {
- .readpage = hfs_readpage,
- .writepage = hfs_writepage,
+ .dirty_folio = block_dirty_folio,
+ .invalidate_folio = block_invalidate_folio,
+ .read_folio = hfs_read_folio,
+ .writepages = hfs_writepages,
.write_begin = hfs_write_begin,
.write_end = generic_write_end,
+ .migrate_folio = buffer_migrate_folio,
.bmap = hfs_bmap,
- .releasepage = hfs_releasepage,
+ .release_folio = hfs_release_folio,
};
const struct address_space_operations hfs_aops = {
- .readpage = hfs_readpage,
- .writepage = hfs_writepage,
+ .dirty_folio = block_dirty_folio,
+ .invalidate_folio = block_invalidate_folio,
+ .read_folio = hfs_read_folio,
.write_begin = hfs_write_begin,
.write_end = generic_write_end,
.bmap = hfs_bmap,
.direct_IO = hfs_direct_IO,
.writepages = hfs_writepages,
+ .migrate_folio = buffer_migrate_folio,
};
/*
* hfs_new_inode
*/
-struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, umode_t mode)
+struct inode *hfs_new_inode(struct inode *dir, const struct qstr *name, umode_t mode)
{
struct super_block *sb = dir->i_sb;
struct inode *inode = new_inode(sb);
+ s64 next_id;
+ s64 file_count;
+ s64 folder_count;
+
if (!inode)
return NULL;
mutex_init(&HFS_I(inode)->extents_lock);
INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
+ spin_lock_init(&HFS_I(inode)->open_dir_lock);
hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
- inode->i_ino = HFS_SB(sb)->next_id++;
+ next_id = atomic64_inc_return(&HFS_SB(sb)->next_id);
+ BUG_ON(next_id > U32_MAX);
+ inode->i_ino = (u32)next_id;
inode->i_mode = mode;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
set_nlink(inode, 1);
- inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
+ simple_inode_init_ts(inode);
HFS_I(inode)->flags = 0;
HFS_I(inode)->rsrc_inode = NULL;
HFS_I(inode)->fs_blocks = 0;
+ HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
if (S_ISDIR(mode)) {
inode->i_size = 2;
- HFS_SB(sb)->folder_count++;
+ folder_count = atomic64_inc_return(&HFS_SB(sb)->folder_count);
+ BUG_ON(folder_count > U32_MAX);
if (dir->i_ino == HFS_ROOT_CNID)
HFS_SB(sb)->root_dirs++;
inode->i_op = &hfs_dir_inode_operations;
@@ -208,7 +219,8 @@ struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, umode_t mode)
inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
} else if (S_ISREG(mode)) {
HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
- HFS_SB(sb)->file_count++;
+ file_count = atomic64_inc_return(&HFS_SB(sb)->file_count);
+ BUG_ON(file_count > U32_MAX);
if (dir->i_ino == HFS_ROOT_CNID)
HFS_SB(sb)->root_files++;
inode->i_op = &hfs_file_inode_operations;
@@ -238,16 +250,19 @@ void hfs_delete_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
- hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
+ hfs_dbg("ino %lu\n", inode->i_ino);
if (S_ISDIR(inode->i_mode)) {
- HFS_SB(sb)->folder_count--;
+ BUG_ON(atomic64_read(&HFS_SB(sb)->folder_count) > U32_MAX);
+ atomic64_dec(&HFS_SB(sb)->folder_count);
if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
HFS_SB(sb)->root_dirs--;
set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
hfs_mark_mdb_dirty(sb);
return;
}
- HFS_SB(sb)->file_count--;
+
+ BUG_ON(atomic64_read(&HFS_SB(sb)->file_count) > U32_MAX);
+ atomic64_dec(&HFS_SB(sb)->file_count);
if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
HFS_SB(sb)->root_files--;
if (S_ISREG(inode->i_mode)) {
@@ -272,6 +287,8 @@ void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
for (count = 0, i = 0; i < 3; i++)
count += be16_to_cpu(ext[i].count);
HFS_I(inode)->first_blocks = count;
+ HFS_I(inode)->cached_start = 0;
+ HFS_I(inode)->cached_blocks = 0;
inode->i_size = HFS_I(inode)->phys_size = log_size;
HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
@@ -318,6 +335,7 @@ static int hfs_read_inode(struct inode *inode, void *data)
HFS_I(inode)->rsrc_inode = NULL;
mutex_init(&HFS_I(inode)->extents_lock);
INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
+ spin_lock_init(&HFS_I(inode)->open_dir_lock);
/* Initialize the inode */
inode->i_uid = hsb->s_uid;
@@ -347,8 +365,8 @@ static int hfs_read_inode(struct inode *inode, void *data)
inode->i_mode |= S_IWUGO;
inode->i_mode &= ~hsb->s_file_umask;
inode->i_mode |= S_IFREG;
- inode->i_ctime = inode->i_atime = inode->i_mtime =
- hfs_m_to_utime(rec->file.MdDat);
+ inode_set_mtime_to_ts(inode,
+ inode_set_atime_to_ts(inode, inode_set_ctime_to_ts(inode, hfs_m_to_utime(rec->file.MdDat))));
inode->i_op = &hfs_file_inode_operations;
inode->i_fop = &hfs_file_operations;
inode->i_mapping->a_ops = &hfs_aops;
@@ -358,8 +376,8 @@ static int hfs_read_inode(struct inode *inode, void *data)
inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
HFS_I(inode)->fs_blocks = 0;
inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
- inode->i_ctime = inode->i_atime = inode->i_mtime =
- hfs_m_to_utime(rec->dir.MdDat);
+ inode_set_mtime_to_ts(inode,
+ inode_set_atime_to_ts(inode, inode_set_ctime_to_ts(inode, hfs_m_to_utime(rec->dir.MdDat))));
inode->i_op = &hfs_dir_inode_operations;
inode->i_fop = &hfs_dir_operations;
break;
@@ -395,7 +413,7 @@ struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_
return NULL;
}
inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
- if (inode && (inode->i_state & I_NEW))
+ if (inode && (inode_state_read_once(inode) & I_NEW))
unlock_new_inode(inode);
return inode;
}
@@ -419,7 +437,7 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
hfs_cat_rec rec;
int res;
- hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
+ hfs_dbg("ino %lu\n", inode->i_ino);
res = hfs_ext_write_extent(inode);
if (res)
return res;
@@ -450,26 +468,30 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
/* panic? */
return -EIO;
+ res = -EIO;
+ if (HFS_I(main_inode)->cat_key.CName.len > HFS_NAMELEN)
+ goto out;
fd.search_key->cat = HFS_I(main_inode)->cat_key;
if (hfs_brec_find(&fd))
- /* panic? */
goto out;
if (S_ISDIR(main_inode->i_mode)) {
if (fd.entrylength < sizeof(struct hfs_cat_dir))
- /* panic? */;
+ goto out;
hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_dir));
if (rec.type != HFS_CDR_DIR ||
be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
}
- rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
+ rec.dir.MdDat = hfs_u_to_mtime(inode_get_mtime(inode));
rec.dir.Val = cpu_to_be16(inode->i_size - 2);
hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_dir));
} else if (HFS_IS_RSRC(inode)) {
+ if (fd.entrylength < sizeof(struct hfs_cat_file))
+ goto out;
hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_file));
hfs_inode_write_fork(inode, rec.file.RExtRec,
@@ -478,7 +500,7 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
sizeof(struct hfs_cat_file));
} else {
if (fd.entrylength < sizeof(struct hfs_cat_file))
- /* panic? */;
+ goto out;
hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_file));
if (rec.type != HFS_CDR_FIL ||
@@ -490,14 +512,15 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
else
rec.file.Flags |= HFS_FIL_LOCK;
hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
- rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
+ rec.file.MdDat = hfs_u_to_mtime(inode_get_mtime(inode));
hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
sizeof(struct hfs_cat_file));
}
+ res = 0;
out:
hfs_find_exit(&fd);
- return 0;
+ return res;
}
static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
@@ -538,16 +561,16 @@ static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
HFS_I(inode)->rsrc_inode = dir;
HFS_I(dir)->rsrc_inode = inode;
igrab(dir);
- hlist_add_fake(&inode->i_hash);
+ inode_fake_hash(inode);
mark_inode_dirty(inode);
+ dont_mount(dentry);
out:
- d_add(dentry, inode);
- return NULL;
+ return d_splice_alias(inode, dentry);
}
void hfs_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
@@ -570,13 +593,13 @@ static int hfs_file_release(struct inode *inode, struct file *file)
if (HFS_IS_RSRC(inode))
inode = HFS_I(inode)->rsrc_inode;
if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
hfs_file_truncate(inode);
//if (inode->i_flags & S_DEAD) {
// hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
// hfs_delete_inode(inode);
//}
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
}
return 0;
}
@@ -598,13 +621,15 @@ static int hfs_file_release(struct inode *inode, struct file *file)
* correspond to the same HFS file.
*/
-int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
+int hfs_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
+ struct iattr *attr)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = d_inode(dentry);
struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
int error;
- error = inode_change_ok(inode, attr); /* basic permission checks */
+ error = setattr_prepare(&nop_mnt_idmap, dentry,
+ attr); /* basic permission checks */
if (error)
return error;
@@ -639,9 +664,10 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
truncate_setsize(inode, attr->ia_size);
hfs_file_truncate(inode);
+ simple_inode_init_ts(inode);
}
- setattr_copy(inode, attr);
+ setattr_copy(&nop_mnt_idmap, inode, attr);
mark_inode_dirty(inode);
return 0;
}
@@ -653,10 +679,10 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end,
struct super_block * sb;
int ret, err;
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ ret = file_write_and_wait_range(filp, start, end);
if (ret)
return ret;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
/* sync the inode to buffers */
ret = write_inode_now(inode, 0);
@@ -668,18 +694,17 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end,
err = sync_blockdev(sb->s_bdev);
if (!ret)
ret = err;
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return ret;
}
static const struct file_operations hfs_file_operations = {
.llseek = generic_file_llseek,
- .read = do_sync_read,
- .aio_read = generic_file_aio_read,
- .write = do_sync_write,
- .aio_write = generic_file_aio_write,
- .mmap = generic_file_mmap,
- .splice_read = generic_file_splice_read,
+ .read_iter = generic_file_read_iter,
+ .write_iter = generic_file_write_iter,
+ .mmap_prepare = generic_file_mmap_prepare,
+ .splice_read = filemap_splice_read,
+ .splice_write = iter_file_splice_write,
.fsync = hfs_file_fsync,
.open = hfs_file_open,
.release = hfs_file_release,
@@ -688,7 +713,5 @@ static const struct file_operations hfs_file_operations = {
static const struct inode_operations hfs_file_inode_operations = {
.lookup = hfs_file_lookup,
.setattr = hfs_inode_setattr,
- .setxattr = hfs_setxattr,
- .getxattr = hfs_getxattr,
- .listxattr = hfs_listxattr,
+ .listxattr = generic_listxattr,
};
generated by cgit (git 2.34.1) at 2025-12-22 01:50:24 +0000