Commit dda18528 authored Oct 14, 2011 by Konrad Rzeszutek Wilk

xen/blkback: Check for proper operation.



The patch titled: "xen/blkback: Fix the inhibition to map pages
when discarding sector ranges." had the right idea except that
it used the wrong comparison operator. It had == instead of !=.

This fixes the bug where all (except discard) operations would
have been ignored.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

parent 64391b25

drivers/block/xen-blkback/blkback.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -707,7 +707,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
		* the hypercall to unmap the grants - that is all done in
		* xen_blkbk_unmap.
		*/
		if (operation == REQ_DISCARD && xen_blkbk_map(req, pending_req, seg))
		if (operation != REQ_DISCARD && xen_blkbk_map(req, pending_req, seg))
		goto fail_flush;

		/*