aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/genhd.h
diff options
context:
space:
mode:
authorMartin K. Petersen <martin.petersen@oracle.com>2008-06-30 14:04:41 -0400
committerJens Axboe <jens.axboe@oracle.com>2008-07-03 07:21:13 -0400
commit7ba1ba12eeef0aa7113beb16410ef8b7c748e18b (patch)
tree4629aabe88bf095d58eabd2f451207695bb35b08 /include/linux/genhd.h
parent51d654e1d885607a6edd02b337105fa5c28b6d33 (diff)
block: Block layer data integrity support
Some block devices support verifying the integrity of requests by way of checksums or other protection information that is submitted along with the I/O. This patch implements support for generating and verifying integrity metadata, as well as correctly merging, splitting and cloning bios and requests that have this extra information attached. See Documentation/block/data-integrity.txt for more information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/genhd.h')
-rw-r--r--include/linux/genhd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index ae7aec3cabee..524ec96f5a23 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -141,6 +141,9 @@ struct gendisk {
141 struct disk_stats dkstats; 141 struct disk_stats dkstats;
142#endif 142#endif
143 struct work_struct async_notify; 143 struct work_struct async_notify;
144#ifdef CONFIG_BLK_DEV_INTEGRITY
145 struct blk_integrity *integrity;
146#endif
144}; 147};
145 148
146/* 149/*