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authorDavid C Somayajulu <david.somayajulu@qlogic.com>2006-10-04 08:27:25 +0200
committerJens Axboe <axboe@nelson.home.kernel.dk>2006-10-04 19:32:09 +0200
commitf583f4924d669d36de677e0cc2422ee95203d444 (patch)
tree08efeac804151bbaef8cf0ca7effaa4e30e037f9 /block/ll_rw_blk.c
parent4a61f17378c2cdd9bd8f34ef8bd7422861d0c1f1 (diff)
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[PATCH] helper function for retrieving scsi_cmd given host based block layer tag
This was necessitated by the need for a function to get back to a scsi_cmnd, when an hba the posts its (corresponding) completion interrupt with a block layer tag as its reference. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/ll_rw_blk.c')
-rw-r--r--block/ll_rw_blk.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 83425fb3c8d..c847e17e5ca 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -840,12 +840,7 @@ EXPORT_SYMBOL(blk_queue_dma_alignment);
**/
struct request *blk_queue_find_tag(request_queue_t *q, int tag)
{
- struct blk_queue_tag *bqt = q->queue_tags;
-
- if (unlikely(bqt == NULL || tag >= bqt->real_max_depth))
- return NULL;
-
- return bqt->tag_index[tag];
+ return blk_map_queue_find_tag(q->queue_tags, tag);
}
EXPORT_SYMBOL(blk_queue_find_tag);