[V9fs-developer] [PATCH] fs/9p: don't set SB_NOATIME by default

[jiangyiwen]

User use some syscall, for example mmap(v9fs_file_mmap), it will not
update atime even if user's mnt_flags without MNT_NOATIME, because
v9fs default set SB_NOATIME in v9fs_set_super.

For supporting access time is updated when user mount with relatime,
we should not set SB_NOATIME by default.

Signed-off-by: Yiwen Jiang <jiangyi...@huawei.com>
Reviewed-by: Greg Kurz <gr...@kaod.org>
---
 fs/9p/vfs_super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index af03c2a..48ce504 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -94,7 +94,7 @@ static int v9fs_set_super(struct super_block *s, void *data)
        if (v9ses->cache)
                sb->s_bdi->ra_pages = (VM_MAX_READAHEAD * 1024)/PAGE_SIZE;

-       sb->s_flags |= SB_ACTIVE | SB_DIRSYNC | SB_NOATIME;
+       sb->s_flags |= SB_ACTIVE | SB_DIRSYNC;
        if (!v9ses->cache)
                sb->s_flags |= SB_SYNCHRONOUS;

-- 
1.8.3.1