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authorKent Overstreet <koverstreet@google.com>2012-09-25 15:05:12 -0700
committerKent Overstreet <koverstreet@google.com>2013-03-23 14:15:29 -0700
commitf73a1c7d117d07a96d89475066188a2b79e53c48 (patch)
treeb2343926df6cf7877ee398ba485a962148b67804 /drivers/s390
parentfb9e3534768c1daa0bd09dd00d1a8828e15079c8 (diff)
downloadop-kernel-dev-f73a1c7d117d07a96d89475066188a2b79e53c48.zip
op-kernel-dev-f73a1c7d117d07a96d89475066188a2b79e53c48.tar.gz
block: Add bio_end_sector()
Just a little convenience macro - main reason to add it now is preparing for immutable bio vecs, it'll reduce the size of the patch that puts bi_sector/bi_size/bi_idx into a struct bvec_iter. Signed-off-by: Kent Overstreet <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk> CC: Lars Ellenberg <drbd-dev@lists.linbit.com> CC: Jiri Kosina <jkosina@suse.cz> CC: Alasdair Kergon <agk@redhat.com> CC: dm-devel@redhat.com CC: Neil Brown <neilb@suse.de> CC: Martin Schwidefsky <schwidefsky@de.ibm.com> CC: Heiko Carstens <heiko.carstens@de.ibm.com> CC: linux-s390@vger.kernel.org CC: Chris Mason <chris.mason@fusionio.com> CC: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/dcssblk.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index b6ad0de..12d08b4 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -826,8 +826,7 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio)
if ((bio->bi_sector & 7) != 0 || (bio->bi_size & 4095) != 0)
/* Request is not page-aligned. */
goto fail;
- if (((bio->bi_size >> 9) + bio->bi_sector)
- > get_capacity(bio->bi_bdev->bd_disk)) {
+ if (bio_end_sector(bio) > get_capacity(bio->bi_bdev->bd_disk)) {
/* Request beyond end of DCSS segment. */
goto fail;
}
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