aboutsummaryrefslogtreecommitdiff
path: root/block/blk-merge.c
diff options
context:
space:
mode:
authorPaul Mundt2009-07-07 11:55:05 +0900
committerPaul Mundt2009-07-07 11:55:05 +0900
commit2b5c0c72ea404d6b554a8284031dd78748314b9e (patch)
tree468b7f3d8db0abe6a09ee221dce1de5de2bb8d12 /block/blk-merge.c
parent2dbc8a23cc2e677422f6dea991aca4e3d31ab65f (diff)
parentdc53fffc105f68cb08ca872acd51550e89aa2e67 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31
Diffstat (limited to 'block/blk-merge.c')
-rw-r--r--block/blk-merge.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 39ce64432ba6..e1999679a4d5 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -350,6 +350,12 @@ static int attempt_merge(struct request_queue *q, struct request *req,
if (blk_integrity_rq(req) != blk_integrity_rq(next))
return 0;
+ /* don't merge requests of different failfast settings */
+ if (blk_failfast_dev(req) != blk_failfast_dev(next) ||
+ blk_failfast_transport(req) != blk_failfast_transport(next) ||
+ blk_failfast_driver(req) != blk_failfast_driver(next))
+ return 0;
+
/*
* If we are allowed to merge, then append bio list
* from next to rq and release next. merge_requests_fn