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| author | Harshad Shirwadkar <harshadshirwadkar@gmail.com> | 2020-10-15 13:37:59 -0700 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-10-21 23:22:38 -0400 |
| commit | 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 (patch) | |
| tree | d34436d4b4826d877360171d7ab89945dc13a90f /fs/ext4/balloc.c | |
| parent | 5b849b5f96b47d82b5a432d8b91a8ad260e1de46 (diff) | |
| download | linux-8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2.tar.gz linux-8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2.tar.bz2 linux-8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2.zip | |
ext4: fast commit recovery path
This patch adds fast commit recovery path support for Ext4 file
system. We add several helper functions that are similar in spirit to
e2fsprogs journal recovery path handlers. Example of such functions
include - a simple block allocator, idempotent block bitmap update
function etc. Using these routines and the fast commit log in the fast
commit area, the recovery path (ext4_fc_replay()) performs fast commit
log recovery.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201015203802.3597742-8-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/balloc.c')
| -rw-r--r-- | fs/ext4/balloc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index dea738ba2acd..1d640b145637 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -368,7 +368,12 @@ static int ext4_validate_block_bitmap(struct super_block *sb, struct buffer_head *bh) { ext4_fsblk_t blk; - struct ext4_group_info *grp = ext4_get_group_info(sb, block_group); + struct ext4_group_info *grp; + + if (EXT4_SB(sb)->s_mount_state & EXT4_FC_REPLAY) + return 0; + + grp = ext4_get_group_info(sb, block_group); if (buffer_verified(bh)) return 0; |