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authorChristoph Hellwig <hch@lst.de>2014-09-14 01:40:13 +0200
committerJens Axboe <axboe@fb.com>2014-09-22 20:00:07 +0200
commit0152fb6b57c4fae769ee75ea2ae670f4ff39fba9 (patch)
treef59f4c6703c1914bc65607f21ae8c868b995f245 /drivers/scsi/scsi_lib.c
parentblk-mq: unshared timeout handler (diff)
downloadlinux-0152fb6b57c4fae769ee75ea2ae670f4ff39fba9.tar.xz
linux-0152fb6b57c4fae769ee75ea2ae670f4ff39fba9.zip
blk-mq: pass a reserved argument to the timeout handler
Allow blk-mq to pass an argument to the timeout handler to indicate if we're timing out a reserved or regular command. For many drivers those need to be handled different. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 73ce7d27f5c8..86b1156edb82 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1932,6 +1932,14 @@ out:
return ret;
}
+static enum blk_eh_timer_return scsi_timeout(struct request *req,
+ bool reserved)
+{
+ if (reserved)
+ return BLK_EH_RESET_TIMER;
+ return scsi_times_out(req);
+}
+
static int scsi_init_request(void *data, struct request *rq,
unsigned int hctx_idx, unsigned int request_idx,
unsigned int numa_node)
@@ -2043,7 +2051,7 @@ static struct blk_mq_ops scsi_mq_ops = {
.map_queue = blk_mq_map_queue,
.queue_rq = scsi_queue_rq,
.complete = scsi_softirq_done,
- .timeout = scsi_times_out,
+ .timeout = scsi_timeout,
.init_request = scsi_init_request,
.exit_request = scsi_exit_request,
};