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authorKent Overstreet <kmo@daterainc.com>2013-09-24 16:26:05 -0700
committerKent Overstreet <kmo@daterainc.com>2013-11-23 22:33:51 -0800
commit458b76ed2f9517becb74dcc8eedd70d3068ea6e4 (patch)
treeb01b2150b197e0759b3ba59c0f9367d4477ebb8c /drivers/md/raid0.c
parentd57a5f7c6605f15f3b5134837e68b448a7cea88e (diff)
downloadlinux-458b76ed2f9517becb74dcc8eedd70d3068ea6e4.tar.bz2
block: Kill bio_segments()/bi_vcnt usage
When we start sharing biovecs, keeping bi_vcnt accurate for splits is going to be error prone - and unnecessary, if we refactor some code. So bio_segments() has to go - but most of the existing users just needed to know if the bio had multiple segments, which is easier - add a bio_multiple_segments() for them. (Two of the current uses of bio_segments() are going to go away in a couple patches, but the current implementation of bio_segments() is unsafe as soon as we start doing driver conversions for immutable biovecs - so implement a dumb version for bisectability, it'll go away in a couple patches) Signed-off-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Neil Brown <neilb@suse.de> Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com> Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index e38d1d3226f3..8ee1a6c658b4 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -528,7 +528,7 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
sector_t sector = bio->bi_iter.bi_sector;
struct bio_pair *bp;
/* Sanity check -- queue functions should prevent this happening */
- if (bio_segments(bio) > 1)
+ if (bio_multiple_segments(bio))
goto bad_map;
/* This is a one page bio that upper layers
* refuse to split for us, so we need to split it.