Commit 9e96fe6d authored Jan 17, 2013 by Brian Foster Committed by Ben Myers Jan 17, 2013

xfs: pull up stack_switch check into xfs_bmapi_write



The stack_switch check currently occurs in __xfs_bmapi_allocate,
which means the stack switch only occurs when xfs_bmapi_allocate()
is called in a loop. Pull the check up before the loop in
xfs_bmapi_write() such that the first iteration of the loop has
consistent behavior.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

parent 667a9291

fs/xfs/xfs_bmap.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -4676,9 +4676,6 @@ __xfs_bmapi_allocate(
		return error;
		}

		if (bma->flags & XFS_BMAPI_STACK_SWITCH)
		bma->stack_switch = 1;

		error = xfs_bmap_alloc(bma);
		if (error)
		return error;
		@@ -4952,6 +4949,9 @@ xfs_bmapi_write(
		bma.flist = flist;
		bma.firstblock = firstblock;

		if (flags & XFS_BMAPI_STACK_SWITCH)
		bma.stack_switch = 1;

		while (bno < end && n < *nmap) {
		inhole = eof \|\| bma.got.br_startoff > bno;
		wasdelay = !inhole && isnullstartblock(bma.got.br_startblock);