Commit 7ff3c204 authored Apr 05, 2018 by Yiwen Jiang Committed by Linus Torvalds Apr 05, 2018

fs/9p: don't set SB_NOATIME by default

When the user uses some syscall, for example mmap(v9fs_file_mmap), it
will not update atime even if user's was set mnt_flags without
MNT_NOATIME, because v9fs defaults to settine SB_NOATIME in
v9fs_set_super.

For supporting access time updating when the user mounts with relatime,
we should not set SB_NOATIME by default.

Link: http://lkml.kernel.org/r/5AB9A377.6080906@huawei.com


Signed-off-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent a25c3657

fs/9p/vfs_super.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -94,7 +94,7 @@ v9fs_fill_super(struct super_block sb, struct v9fs_session_info v9ses,
		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;

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