diff options
| author | Ojaswin Mujoo <ojaswin@linux.ibm.com> | 2023-11-01 18:47:17 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2024-01-05 07:28:47 +0300 |
| commit | e89fdcc425b6feea4dfb33877e9256757905d763 (patch) | |
| tree | b355cede78cf573ff582cd13524c72028f2848cf | |
| parent | f2fec3e99a32d7c14dbf63c824f8286ebc94b18d (diff) | |
| download | linux-e89fdcc425b6feea4dfb33877e9256757905d763.tar.xz | |
ext4: enable dioread_nolock as default for bs < ps case
dioread_nolock was originally disabled as a default option for bs < ps
scenarios due to a data corruption issue. Since then, we've had some
fixes in this area which address such issues. Enable dioread_nolock by
default and remove the experimental warning message for bs < ps path.
dioread for bs < ps has been tested on a 64k pagesize machine using:
kvm-xfstest -C 3 -g auto
with the following configs:
64k adv bigalloc_4k bigalloc_64k data_journal encrypt
dioread_nolock dioread_nolock_4k ext3 ext3conv nojournal
And no new regressions were seen compared to baseline kernel.
Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20231101154717.531865-1-ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/super.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c5fcf377ab1f..783a755078cf 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2793,15 +2793,6 @@ static int ext4_check_opt_consistency(struct fs_context *fc, return -EINVAL; } - if (ctx_test_mount_opt(ctx, EXT4_MOUNT_DIOREAD_NOLOCK)) { - int blocksize = - BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size); - if (blocksize < PAGE_SIZE) - ext4_msg(NULL, KERN_WARNING, "Warning: mounting with an " - "experimental mount option 'dioread_nolock' " - "for blocksize < PAGE_SIZE"); - } - err = ext4_check_test_dummy_encryption(fc, sb); if (err) return err; @@ -4410,7 +4401,7 @@ static void ext4_set_def_opts(struct super_block *sb, ((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0)) set_opt(sb, DELALLOC); - if (sb->s_blocksize == PAGE_SIZE) + if (sb->s_blocksize <= PAGE_SIZE) set_opt(sb, DIOREAD_NOLOCK); } |