diff options
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ext4.h | 7 | ||||
| -rw-r--r-- | fs/ext4/extents.c | 18 | ||||
| -rw-r--r-- | fs/ext4/file.c | 7 | ||||
| -rw-r--r-- | fs/ext4/inline.c | 2 | ||||
| -rw-r--r-- | fs/ext4/inode.c | 10 |
5 files changed, 24 insertions, 20 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index c2e6989a568c..e94df69ee2e0 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3369,6 +3369,13 @@ static inline unsigned int ext4_flex_bg_size(struct ext4_sb_info *sbi) return 1 << sbi->s_log_groups_per_flex; } +static inline loff_t ext4_get_maxbytes(struct inode *inode) +{ + if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) + return inode->i_sb->s_maxbytes; + return EXT4_SB(inode->i_sb)->s_bitmap_maxbytes; +} + #define ext4_std_error(sb, errno) \ do { \ if ((errno)) \ diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index ba3419958a83..b16d72275e10 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2396,18 +2396,19 @@ int ext4_ext_calc_credits_for_single_extent(struct inode *inode, int nrblocks, int ext4_ext_index_trans_blocks(struct inode *inode, int extents) { int index; - int depth; /* If we are converting the inline data, only one is needed here. */ if (ext4_has_inline_data(inode)) return 1; - depth = ext_depth(inode); - + /* + * Extent tree can change between the time we estimate credits and + * the time we actually modify the tree. Assume the worst case. + */ if (extents <= 1) - index = depth * 2; + index = EXT4_MAX_EXTENT_DEPTH * 2; else - index = depth * 3; + index = EXT4_MAX_EXTENT_DEPTH * 3; return index; } @@ -4976,12 +4977,7 @@ static const struct iomap_ops ext4_iomap_xattr_ops = { static int ext4_fiemap_check_ranges(struct inode *inode, u64 start, u64 *len) { - u64 maxbytes; - - if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) - maxbytes = inode->i_sb->s_maxbytes; - else - maxbytes = EXT4_SB(inode->i_sb)->s_bitmap_maxbytes; + u64 maxbytes = ext4_get_maxbytes(inode); if (*len == 0) return -EINVAL; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index f14aed14b9cf..6c692151b0d6 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -896,12 +896,7 @@ static int ext4_file_open(struct inode *inode, struct file *filp) loff_t ext4_llseek(struct file *file, loff_t offset, int whence) { struct inode *inode = file->f_mapping->host; - loff_t maxbytes; - - if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - maxbytes = EXT4_SB(inode->i_sb)->s_bitmap_maxbytes; - else - maxbytes = inode->i_sb->s_maxbytes; + loff_t maxbytes = ext4_get_maxbytes(inode); switch (whence) { default: diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c index 3536ca7e4fcc..05b148d6fc71 100644 --- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -392,7 +392,7 @@ out: } static int ext4_prepare_inline_data(handle_t *handle, struct inode *inode, - unsigned int len) + loff_t len) { int ret, size, no_expand; struct ext4_inode_info *ei = EXT4_I(inode); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 38fe9a213d09..f769f5cb6deb 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1000,7 +1000,12 @@ int ext4_walk_page_buffers(handle_t *handle, struct inode *inode, */ static int ext4_dirty_journalled_data(handle_t *handle, struct buffer_head *bh) { - folio_mark_dirty(bh->b_folio); + struct folio *folio = bh->b_folio; + struct inode *inode = folio->mapping->host; + + /* only regular files have a_ops */ + if (S_ISREG(inode->i_mode)) + folio_mark_dirty(folio); return ext4_handle_dirty_metadata(handle, NULL, bh); } @@ -4928,7 +4933,8 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino, ei->i_file_acl |= ((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32; inode->i_size = ext4_isize(sb, raw_inode); - if ((size = i_size_read(inode)) < 0) { + size = i_size_read(inode); + if (size < 0 || size > ext4_get_maxbytes(inode)) { ext4_error_inode(inode, function, line, 0, "iget: bad i_size value: %lld", size); ret = -EFSCORRUPTED; |