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ext4: change s_last_trim_minblks type to unsigned long

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[ Upstream commit 2327fb2e23416cfb2795ccca2f77d4d65925be99 ]

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>
Stable-dep-of: 45e4ab320c9b ("ext4: move setting of trimmed bit into ext4_try_to_trim_range()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lukas Czerner
2021-11-03 15:51:21 +01:00
committed by Greg Kroah-Hartman
parent 24a86315a3
commit 5eaf4a1e06
2 changed files with 3 additions and 3 deletions
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fs/ext4/ext4.h
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@@ -1580,7 +1580,7 @@ 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;