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| author | Yangtao Li <frank.li@vivo.com> | 2023-02-06 22:43:08 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-02-07 10:45:00 -0800 |
| commit | c5bf83483382600988d7db5ffe9fcd1936b491fd (patch) | |
| tree | f47d59fe5ffb213b80a2a652fca538286e2078f7 /fs/f2fs/sysfs.c | |
| parent | 146949defda868378992171b9e42318b06fcd482 (diff) | |
| download | linux-c5bf83483382600988d7db5ffe9fcd1936b491fd.tar.gz linux-c5bf83483382600988d7db5ffe9fcd1936b491fd.tar.bz2 linux-c5bf83483382600988d7db5ffe9fcd1936b491fd.zip | |
f2fs: fix to set ipu policy
For LFS mode, it should update outplace and no need inplace update.
When using LFS mode for small-volume devices, IPU will not be used,
and the OPU writing method is actually used, but F2FS_IPU_FORCE can
be read from the ipu_policy node, which is different from the actual
situation. And remount to lfs mode should be disallowed when
f2fs ipu is enabled, let's fix it.
Fixes: 84b89e5d943d ("f2fs: add auto tuning for small devices")
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 8789b3b53fb6..6082e132257a 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -706,6 +706,15 @@ out: return count; } + if (!strcmp(a->attr.name, "ipu_policy")) { + if (t >= BIT(F2FS_IPU_MAX)) + return -EINVAL; + if (t && f2fs_lfs_mode(sbi)) + return -EINVAL; + SM_I(sbi)->ipu_policy = (unsigned int)t; + return count; + } + *ui = (unsigned int)t; return count; |