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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: axboe@kernel.dk, lucho@ionkov.net, jack@suse.cz,
	darrick.wong@oracle.com, ericvh@gmail.com, tytso@mit.edu,
	viro@zeniv.linux.org.uk, rminnich@sandia.gov
Cc: martin.petersen@oracle.com,
	Artem Bityutskiy <dedekind1@gmail.com>,
	neilb@suse.de, linux-kernel@vger.kernel.org, david@fromorbit.com,
	gnehzuil.liu@gmail.com, Adrian Hunter <adrian.hunter@intel.com>,
	hch@infradead.org, jlayton@samba.org, adilger.kernel@dilger.ca,
	bharrosh@panasas.com, linux-fsdevel@vger.kernel.org,
	linux-mtd@lists.infradead.org, linux-ext4@vger.kernel.org,
	hirofumi@mail.parknet.co.jp
Subject: [PATCH 6/6] ubifs: Wait for page writeback to provide stable pages
Date: Mon, 14 Jan 2013 21:43:20 -0800	[thread overview]
Message-ID: <20130115054320.1563.54829.stgit@blackbox.djwong.org> (raw)
In-Reply-To: <20130115054235.1563.12967.stgit@blackbox.djwong.org>

When stable pages are required, we have to wait if the page is just
going to disk and we want to modify it. Add proper callback to
ubifs_vm_page_mkwrite().

CC: Artem Bityutskiy <dedekind1@gmail.com>
From: Jan Kara <jack@suse.cz>
CC: Adrian Hunter <adrian.hunter@intel.com>
CC: linux-mtd@lists.infradead.org
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ubifs/file.c |    1 +
 1 file changed, 1 insertion(+)


diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 5bc7781..4f6493c 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1522,6 +1522,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma,
 			ubifs_release_dirty_inode_budget(c, ui);
 	}
 
+	wait_for_stable_page(page);
 	unlock_page(page);
 	return 0;
 


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  parent reply	other threads:[~2013-01-15  5:43 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-15  5:42 [PATCH v2.4 0/3] mm/fs: Remove unnecessary waiting for stable pages Darrick J. Wong
2013-01-15  5:42 ` [PATCH 1/6] bdi: Allow block devices to say that they require stable page writes Darrick J. Wong
2013-01-15  5:42 ` [PATCH 2/6] mm: Only enforce stable page writes if the backing device requires it Darrick J. Wong
2013-01-15 10:19   ` Jan Kara
2013-01-15 10:59   ` Steven Whitehouse
2013-01-18  1:26     ` Darrick J. Wong
2013-01-15  5:42 ` [PATCH 3/6] 9pfs: Fix filesystem to wait for stable page writeback Darrick J. Wong
2013-01-15  5:43 ` [PATCH 4/6] block: Optionally snapshot page contents to provide stable pages during write Darrick J. Wong
2013-01-16  2:00   ` Jan Kara
2013-01-17  3:01     ` Darrick J. Wong
2013-01-17  3:26       ` Martin K. Petersen
2013-01-17 10:32       ` Jan Kara
2013-01-15  5:43 ` [PATCH 5/6] ocfs2: Wait for page writeback to provide stable pages Darrick J. Wong
2013-01-15 10:15   ` Jan Kara
2013-01-15  5:43 ` Darrick J. Wong [this message]
2013-01-15 22:46 ` [PATCH v2.4 0/3] mm/fs: Remove unnecessary waiting for " Andrew Morton
2013-01-16  0:22   ` Darrick J. Wong
2013-01-16  0:33     ` Andrew Morton
2013-01-17  2:49       ` Darrick J. Wong
2013-01-17  4:43         ` Andrew Morton
2013-01-18  1:18           ` Darrick J. Wong
  -- strict thread matches above, loose matches on Subject: below --
2013-01-19  1:12 [PATCH v2.5 " Darrick J. Wong
2013-01-19  1:13 ` [PATCH 6/6] ubifs: Wait for page writeback to provide " Darrick J. Wong
2013-01-23 21:43   ` Andrew Morton
2013-02-21  3:48     ` Darrick J. Wong
2013-02-21  9:36       ` Boaz Harrosh
2013-02-21 22:32       ` Andrew Morton
2013-02-21 22:40         ` Darrick J. Wong

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