Patchwork [6/6] ubifs: Wait for page writeback to provide stable pages

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Submitter Darrick J. Wong
Date Jan. 15, 2013, 5:43 a.m.
Message ID <20130115054320.1563.54829.stgit@blackbox.djwong.org>
Download mbox | patch
Permalink /patch/211999/
State Superseded
Headers show

Comments

Darrick J. Wong - Jan. 15, 2013, 5:43 a.m.
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(+)



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Patch

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;