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| author | Chao Yu <yuchao0@huawei.com> | 2019-08-28 17:33:37 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2019-09-16 08:38:49 -0700 |
| commit | 9720ee80aa183c6463b3e8c68f51eb979583d0ea (patch) | |
| tree | 08daad5519a1c42d21d23889b384f8e09075f47b /fs/f2fs | |
| parent | 05e360061cbdcbfa93f8fcace2e7b53b2baed191 (diff) | |
| download | linux-stable-9720ee80aa183c6463b3e8c68f51eb979583d0ea.tar.gz linux-stable-9720ee80aa183c6463b3e8c68f51eb979583d0ea.tar.bz2 linux-stable-9720ee80aa183c6463b3e8c68f51eb979583d0ea.zip | |
f2fs: fix to fallback to buffered IO in IO aligned mode
In LFS mode, we allow OPU for direct IO, however, we didn't consider
IO alignment feature, so direct IO can trigger unaligned IO, let's
just fallback to buffered IO to keep correct IO alignment semantics
in all places.
Fixes: f847c699cff3 ("f2fs: allow out-place-update for direct IO in LFS mode")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index a89ad8cab821..11c5a6d9f849 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3704,9 +3704,12 @@ static inline bool f2fs_force_buffered_io(struct inode *inode, */ if (f2fs_sb_has_blkzoned(sbi)) return true; - if (test_opt(sbi, LFS) && (rw == WRITE) && - block_unaligned_IO(inode, iocb, iter)) - return true; + if (test_opt(sbi, LFS) && (rw == WRITE)) { + if (block_unaligned_IO(inode, iocb, iter)) + return true; + if (F2FS_IO_ALIGNED(sbi)) + return true; + } if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) && !IS_SWAPFILE(inode)) return true; |