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| author |   Lukas Czerner <lczerner@redhat.com> | 2021-11-03 15:51:21 +0100 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2022-01-10 13:25:55 -0500 |
| commit | 2327fb2e23416cfb2795ccca2f77d4d65925be99 (patch) | |
| tree | 62220bef596e12bab2fea8444e6469fd12c1f7c0 /fs/ext4 | |
| parent | ext4: implement support for get/set fs label (diff) | |
| download | linux-dev-2327fb2e23416cfb2795ccca2f77d4d65925be99.tar.xz linux-dev-2327fb2e23416cfb2795ccca2f77d4d65925be99.zip | |
ext4: change s_last_trim_minblks type to unsigned long
There is no good reason for the s_last_trim_minblks to be atomic. There is
no data integrity needed and there is no real danger in setting and
reading it in a racy manner. Change it to be unsigned long, the same type
as s_clusters_per_group which is the maximum that's allowed.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Suggested-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Link: https://lore.kernel.org/r/20211103145122.17338-1-lczerner@redhat.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ext4.h | 2 | ||||
| -rw-r--r-- | fs/ext4/mballoc.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 5c8de74f5b40..88c240a9cc42 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1663,7 +1663,7 @@ struct ext4_sb_info { struct task_struct *s_mmp_tsk; /* record the last minlen when FITRIM is called. */ - atomic_t s_last_trim_minblks; + unsigned long s_last_trim_minblks; /* Reference to checksum algorithm driver via cryptoapi */ struct crypto_shash *s_chksum_driver; diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index ea764137462e..cf2fd9fc7d98 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -6369,7 +6369,7 @@ ext4_trim_all_free(struct super_block *sb, ext4_group_t group, ext4_lock_group(sb, group); if (!EXT4_MB_GRP_WAS_TRIMMED(e4b.bd_info) || - minblocks < atomic_read(&EXT4_SB(sb)->s_last_trim_minblks)) { + minblocks < EXT4_SB(sb)->s_last_trim_minblks) { ret = ext4_try_to_trim_range(sb, &e4b, start, max, minblocks); if (ret >= 0) EXT4_MB_GRP_SET_TRIMMED(e4b.bd_info); @@ -6478,7 +6478,7 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range) } if (!ret) - atomic_set(&EXT4_SB(sb)->s_last_trim_minblks, minlen); + EXT4_SB(sb)->s_last_trim_minblks = minlen; out: range->len = EXT4_C2B(EXT4_SB(sb), trimmed) << sb->s_blocksize_bits; |