From: "Myklebust, Trond" <Trond.Myklebust@netapp.com>
To: Jan Kara <jack@suse.cz>
Cc: LKML <linux-kernel@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Eric Sandeen <sandeen@redhat.com>,
Dave Chinner <david@fromorbit.com>,
"linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 10/11] nfs: Push file_update_time() into nfs_vm_page_mkwrite()
Date: Thu, 16 Feb 2012 13:50:19 +0000 [thread overview]
Message-ID: <1329400219.2924.1.camel@lade.trondhjem.org> (raw)
In-Reply-To: <1329399979-3647-11-git-send-email-jack@suse.cz>
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On Thu, 2012-02-16 at 14:46 +0100, Jan Kara wrote:
> CC: Trond Myklebust <Trond.Myklebust@netapp.com>
> CC: linux-nfs@vger.kernel.org
> Signed-off-by: Jan Kara <jack@suse.cz>
> ---
> fs/nfs/file.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfs/file.c b/fs/nfs/file.c
> index c43a452..2407922 100644
> --- a/fs/nfs/file.c
> +++ b/fs/nfs/file.c
> @@ -525,6 +525,9 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
> /* make sure the cache has finished storing the page */
> nfs_fscache_wait_on_page_write(NFS_I(dentry->d_inode), page);
>
> + /* Update file times before taking page lock */
> + file_update_time(filp);
> +
> lock_page(page);
> mapping = page->mapping;
> if (mapping != dentry->d_inode->i_mapping)
Hi Jan,
file_update_time() is a no-op in NFS, since we set S_NOATIME|S_NOCMTIME
on all inodes.
Cheers
Trond
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@netapp.com
www.netapp.com
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next prev parent reply other threads:[~2012-02-16 13:50 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 13:46 [PATCH 00/11] Push file_update_time() into .page_mkwrite Jan Kara
2012-02-16 13:46 ` [PATCH 01/11] perf: Push file_update_time() into perf_mmap_fault() Jan Kara
2012-02-16 13:50 ` Peter Zijlstra
2012-02-20 22:33 ` Jan Kara
2012-02-16 13:46 ` [PATCH 02/11] fb_defio: Push file_update_time() into fb_deferred_io_mkwrite() Jan Kara
2012-02-16 13:46 ` [PATCH 03/11] fs: Push file_update_time() into __block_page_mkwrite() Jan Kara
2012-02-16 13:46 ` [PATCH 04/11] ceph: Push file_update_time() into ceph_page_mkwrite() Jan Kara
2012-02-16 19:04 ` Alex Elder
2012-02-16 19:13 ` Sage Weil
2012-02-20 22:42 ` Jan Kara
2012-02-20 22:57 ` Sage Weil
2012-02-20 11:06 ` Jan Kara
2012-02-16 13:46 ` [PATCH 05/11] cifs: Push file_update_time() into cifs_page_mkwrite() Jan Kara
2012-02-16 13:46 ` [PATCH 06/11] 9p: Push file_update_time() into v9fs_vm_page_mkwrite() Jan Kara
2012-02-16 13:46 ` [PATCH 07/11] fuse: Push file_update_time() into fuse_page_mkwrite() Jan Kara
2012-02-16 13:46 ` [PATCH 08/11] gfs2: Push file_update_time() into gfs2_page_mkwrite() Jan Kara
2012-02-16 16:47 ` Steven Whitehouse
2012-02-16 13:46 ` [PATCH 09/11] sysfs: Push file_update_time() into bin_page_mkwrite() Jan Kara
2012-02-16 16:24 ` Greg Kroah-Hartman
2012-02-16 19:04 ` Alex Elder
2012-02-20 11:00 ` Jan Kara
2012-02-29 17:46 ` Eric W. Biederman
2012-02-16 13:46 ` [PATCH 10/11] nfs: Push file_update_time() into nfs_vm_page_mkwrite() Jan Kara
2012-02-16 13:50 ` Myklebust, Trond [this message]
2012-02-20 22:32 ` Jan Kara
2012-02-16 13:46 ` [PATCH 11/11] mm: Update file times from fault path only if .page_mkwrite is not set Jan Kara
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