f2fs: allow dio read for LFS mode
We can allow dio reads for LFS mode, while doing buffered writes for dio writes.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index ca53da5..996b9ae 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1732,7 +1732,7 @@
if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
return 0;
- if (test_opt(F2FS_I_SB(inode), LFS))
+ if (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS))
return 0;
trace_f2fs_direct_IO_enter(inode, offset, count, rw);