While these aren't generally visible from userland, it's best to be
consistent with timestamp handling. When adjusting the quota, update the
mtime and ctime like we would with a write operation on any other inode,
and avoid updating the atime which should only be done for reads.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/gfs2/quota.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Christian,

Would you mind picking this into the vfs.ctime branch, assuming the GFS2
maintainers ack it? Andreas and I had discussed this privately, and I
think it makes sense as part of that series.

Thanks,
Jeff

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 704192b73605..aa5fd06d47bc 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -871,7 +871,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 		size = loc + sizeof(struct gfs2_quota);
 		if (size > inode->i_size)
 			i_size_write(inode, size);
-		inode->i_mtime = inode->i_atime = current_time(inode);
+		inode->i_mtime = inode_set_ctime_current(inode);
 		mark_inode_dirty(inode);
 		set_bit(QDF_REFRESH, &qd->qd_flags);
 	}
-- 
2.41.0

On Thu, Jul 13, 2023 at 09:52:48AM -0400, Jeff Layton wrote:
> While these aren't generally visible from userland, it's best to be
> consistent with timestamp handling. When adjusting the quota, update the
> mtime and ctime like we would with a write operation on any other inode,
> and avoid updating the atime which should only be done for reads.
> 
> Signed-off-by: Jeff Layton <jlayton@kernel.org>
> ---
>  fs/gfs2/quota.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Christian,
> 
> Would you mind picking this into the vfs.ctime branch, assuming the GFS2
> maintainers ack it? Andreas and I had discussed this privately, and I

Happy to!

Jeff and Christian,

On Thu, Jul 13, 2023 at 3:52 PM Jeff Layton <jlayton@kernel.org> wrote:
> While these aren't generally visible from userland, it's best to be
> consistent with timestamp handling. When adjusting the quota, update the
> mtime and ctime like we would with a write operation on any other inode,
> and avoid updating the atime which should only be done for reads.
>
> Signed-off-by: Jeff Layton <jlayton@kernel.org>
> ---
>  fs/gfs2/quota.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Christian,
>
> Would you mind picking this into the vfs.ctime branch, assuming the GFS2
> maintainers ack it? Andreas and I had discussed this privately, and I
> think it makes sense as part of that series.

Yes, please.

> Thanks,
> Jeff
>
> diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
> index 704192b73605..aa5fd06d47bc 100644
> --- a/fs/gfs2/quota.c
> +++ b/fs/gfs2/quota.c
> @@ -871,7 +871,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
>                 size = loc + sizeof(struct gfs2_quota);
>                 if (size > inode->i_size)
>                         i_size_write(inode, size);
> -               inode->i_mtime = inode->i_atime = current_time(inode);
> +               inode->i_mtime = inode_set_ctime_current(inode);
>                 mark_inode_dirty(inode);
>                 set_bit(QDF_REFRESH, &qd->qd_flags);
>         }
> --
> 2.41.0
>

Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>

Thanks,
Andreas

On Thu, 13 Jul 2023 09:52:48 -0400, Jeff Layton wrote:
> While these aren't generally visible from userland, it's best to be
> consistent with timestamp handling. When adjusting the quota, update the
> mtime and ctime like we would with a write operation on any other inode,
> and avoid updating the atime which should only be done for reads.
> 
> 

Applied to the vfs.ctime branch of the vfs/vfs.git tree.
Patches in the vfs.ctime branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs.ctime

[1/1] gfs2: fix timestamp handling on quota inodes
      https://git.kernel.org/vfs/vfs/c/ea462c3f7f48