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

Darrick J. Wong
2013-01-15T05:43:35Z

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;