Commit d76ee18a authored May 27, 2011 by Darrick J. Wong Committed by Al Viro May 28, 2011

fs: block_page_mkwrite should wait for writeback to finish



For filesystems such as nilfs2 and xfs that use block_page_mkwrite, modify that
function to wait for pending writeback before allowing the page to become
writable.  This is needed to stabilize pages during writeback for those two
filesystems.

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

parent 3d08bcc8

fs/buffer.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2382,6 +2382,7 @@ int __block_page_mkwrite(struct vm_area_struct vma, struct vm_fault vmf,
		ret = -EAGAIN;
		goto out_unlock;
		}
		wait_on_page_writeback(page);
		return 0;
		out_unlock:
		unlock_page(page);