tree 258f4e3d384e451c921c5e0c503fd368f236a20a
parent 98702467f829177b3993f17da9fe5c202d160e5e
author Darrick J. Wong <djwong@us.ibm.com> 1306524214 -0700
committer Al Viro <viro@zeniv.linux.org.uk> 1306559001 -0400

mm: Wait for writeback when grabbing pages to begin a write

When grabbing a page for a buffered IO write, the mm should wait for writeback
on the page to complete so that the page does not become writable during the IO
operation.  This change is needed to provide page stability during writes for
all filesystems.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>