block: Add interface to abort queued requests
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 067f28b..37781d6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -788,6 +788,7 @@
extern void blk_complete_request(struct request *);
extern void __blk_complete_request(struct request *);
extern void blk_abort_request(struct request *);
+extern void blk_abort_queue(struct request_queue *);
/*
* blk_end_request() takes bytes instead of sectors as a complete size.
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 27da2cc..dcaf2452 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -48,6 +48,7 @@
__BLK_TA_SPLIT, /* bio was split */
__BLK_TA_BOUNCE, /* bio was bounced */
__BLK_TA_REMAP, /* bio was remapped */
+ __BLK_TA_ABORT, /* request aborted */
};
/*
@@ -78,6 +79,7 @@
#define BLK_TA_SPLIT (__BLK_TA_SPLIT)
#define BLK_TA_BOUNCE (__BLK_TA_BOUNCE)
#define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE))
+#define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE))
#define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY))
#define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY))
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index bb791c3..92f6f63 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -112,6 +112,7 @@
extern int elv_register_queue(struct request_queue *q);
extern void elv_unregister_queue(struct request_queue *q);
extern int elv_may_queue(struct request_queue *, int);
+extern void elv_abort_queue(struct request_queue *);
extern void elv_completed_request(struct request_queue *, struct request *);
extern int elv_set_request(struct request_queue *, struct request *, gfp_t);
extern void elv_put_request(struct request_queue *, struct request *);