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Commit 3d6392cf authored by Jens Axboe's avatar Jens Axboe
Browse files

bsg: support for full generic block layer SG v3 



Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 8f41958b

block/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -51,4 +51,11 @@ config LSF 


endif # BLOCK



config BLK_DEV_BSG

	bool "Block layer SG support"

	default y

	---help---

	Saying Y here will enable generic SG (SCSI generic) v3

	support for any block device.



source block/Kconfig.iosched

block/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 


obj-$(CONFIG_BLOCK) := elevator.o ll_rw_blk.o ioctl.o genhd.o scsi_ioctl.o



obj-$(CONFIG_BLK_DEV_BSG)	+= bsg.o

obj-$(CONFIG_IOSCHED_NOOP)	+= noop-iosched.o

obj-$(CONFIG_IOSCHED_AS)	+= as-iosched.o

obj-$(CONFIG_IOSCHED_DEADLINE)	+= deadline-iosched.o

block/bsg.c

0 → 100644
+997 −0

File added.

Preview size limit exceeded, changes collapsed.

block/ll_rw_blk.c

+8 −0
Original line number Diff line number Diff line
@@ -4091,6 +4091,13 @@ int blk_register_queue(struct gendisk *disk) 
		return ret;

	}



	ret = bsg_register_disk(disk);

	if (ret) {

		elv_unregister_queue(q);

		kobject_unregister(&q->kobj);

		return ret;

	}



	return 0;

}
@@ -4099,6 +4106,7 @@ void blk_unregister_queue(struct gendisk *disk) 
	request_queue_t *q = disk->queue;



	if (q && q->request_fn) {

		bsg_unregister_disk(disk);

		elv_unregister_queue(q);



		kobject_uevent(&q->kobj, KOBJ_REMOVE);

block/scsi_ioctl.c

+102 −61

File changed.

Preview size limit exceeded, changes collapsed.