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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-24 08:37:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-24 08:37:40 -0700 |
| commit | a4277bf122e907e4fec509fc0bd9bf5fde30b14e (patch) | |
| tree | b359e8b0f7895acda1d6331332e69ea5b14d5f0d /fs/ext4/extents.c | |
| parent | 6ae85d6db4871d8dbcb5cc0e9056f97f1ca07061 (diff) | |
| parent | b5451f7b2694b04d9f912f6cf09db1729f291996 (diff) | |
| download | linux-rpi-a4277bf122e907e4fec509fc0bd9bf5fde30b14e.tar.gz linux-rpi-a4277bf122e907e4fec509fc0bd9bf5fde30b14e.tar.bz2 linux-rpi-a4277bf122e907e4fec509fc0bd9bf5fde30b14e.zip | |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Fix potential inode allocation soft lockup in Orlov allocator
ext4: Make the extent validity check more paranoid
jbd: use SWRITE_SYNC_PLUG when writing synchronous revoke records
jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records
ext4: really print the find_group_flex fallback warning only once
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 2a1cb0979768..e40332158340 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -326,11 +326,14 @@ ext4_ext_max_entries(struct inode *inode, int depth) static int ext4_valid_extent(struct inode *inode, struct ext4_extent *ext) { - ext4_fsblk_t block = ext_pblock(ext); + ext4_fsblk_t block = ext_pblock(ext), valid_block; int len = ext4_ext_get_actual_len(ext); struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es; - if (unlikely(block < le32_to_cpu(es->s_first_data_block) || - ((block + len) > ext4_blocks_count(es)))) + + valid_block = le32_to_cpu(es->s_first_data_block) + + EXT4_SB(inode->i_sb)->s_gdb_count; + if (unlikely(block <= valid_block || + ((block + len) > ext4_blocks_count(es)))) return 0; else return 1; @@ -339,10 +342,13 @@ static int ext4_valid_extent(struct inode *inode, struct ext4_extent *ext) static int ext4_valid_extent_idx(struct inode *inode, struct ext4_extent_idx *ext_idx) { - ext4_fsblk_t block = idx_pblock(ext_idx); + ext4_fsblk_t block = idx_pblock(ext_idx), valid_block; struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es; - if (unlikely(block < le32_to_cpu(es->s_first_data_block) || - (block >= ext4_blocks_count(es)))) + + valid_block = le32_to_cpu(es->s_first_data_block) + + EXT4_SB(inode->i_sb)->s_gdb_count; + if (unlikely(block <= valid_block || + (block >= ext4_blocks_count(es)))) return 0; else return 1; |