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| author | Harshad Shirwadkar <harshadshirwadkar@gmail.com> | 2020-11-05 19:59:09 -0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-11-06 23:01:05 -0500 |
| commit | 9b5f6c9b83d912c63ef9fb486a052be79b06f8b0 (patch) | |
| tree | 5d0127495732468728724cb2af09b387947abc74 /fs/ext4/file.c | |
| parent | da0c5d2695265962f20099737348fcb3ff524d0f (diff) | |
| download | linux-9b5f6c9b83d912c63ef9fb486a052be79b06f8b0.tar.gz linux-9b5f6c9b83d912c63ef9fb486a052be79b06f8b0.tar.bz2 linux-9b5f6c9b83d912c63ef9fb486a052be79b06f8b0.zip | |
ext4: make s_mount_flags modifications atomic
Fast commit file system states are recorded in
sbi->s_mount_flags. Fast commit expects these bit manipulations to be
atomic. This patch adds helpers to make those modifications atomic.
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201106035911.1942128-21-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/file.c')
| -rw-r--r-- | fs/ext4/file.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 80ad5ccc0288..3ed8c048fb12 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -780,13 +780,13 @@ static int ext4_sample_last_mounted(struct super_block *sb, handle_t *handle; int err; - if (likely(sbi->s_mount_flags & EXT4_MF_MNTDIR_SAMPLED)) + if (likely(ext4_test_mount_flag(sb, EXT4_MF_MNTDIR_SAMPLED))) return 0; if (sb_rdonly(sb) || !sb_start_intwrite_trylock(sb)) return 0; - sbi->s_mount_flags |= EXT4_MF_MNTDIR_SAMPLED; + ext4_set_mount_flag(sb, EXT4_MF_MNTDIR_SAMPLED); /* * Sample where the filesystem has been mounted and * store it in the superblock for sysadmin convenience |