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authorKent Overstreet <koverstreet@google.com>2012-09-06 14:14:43 -0700
committerKent Overstreet <koverstreet@google.com>2013-03-23 14:15:33 -0700
commit8be185f2c9d54d6bc0bac1445227b67cb14c0b13 (patch)
treedc8b688b417651484a391553c29deafb733ba92d /drivers/md
parent9e882242c6193ae6f416f2d8d8db0d9126bd996b (diff)
downloadop-kernel-dev-8be185f2c9d54d6bc0bac1445227b67cb14c0b13.zip
op-kernel-dev-8be185f2c9d54d6bc0bac1445227b67cb14c0b13.tar.gz
raid10: Use bio_reset()
More prep work for immutable bio vecs, mainly getting rid of references to bi_idx. bio_reset was being open coded in a few places. The one in sync_request was a bit nontrivial to convert, so could use some extra eyeballs. Signed-off-by: Kent Overstreet <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk> CC: NeilBrown <neilb@suse.de> Acked-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid10.c31
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 434586d..e32e8b1 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2077,13 +2077,10 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
* First we need to fixup bv_offset, bv_len and
* bi_vecs, as the read request might have corrupted these
*/
+ bio_reset(tbio);
+
tbio->bi_vcnt = vcnt;
tbio->bi_size = r10_bio->sectors << 9;
- tbio->bi_idx = 0;
- tbio->bi_phys_segments = 0;
- tbio->bi_flags &= ~(BIO_POOL_MASK - 1);
- tbio->bi_flags |= 1 << BIO_UPTODATE;
- tbio->bi_next = NULL;
tbio->bi_rw = WRITE;
tbio->bi_private = r10_bio;
tbio->bi_sector = r10_bio->devs[i].addr;
@@ -3090,6 +3087,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
}
}
bio = r10_bio->devs[0].bio;
+ bio_reset(bio);
bio->bi_next = biolist;
biolist = bio;
bio->bi_private = r10_bio;
@@ -3114,6 +3112,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
rdev = mirror->rdev;
if (!test_bit(In_sync, &rdev->flags)) {
bio = r10_bio->devs[1].bio;
+ bio_reset(bio);
bio->bi_next = biolist;
biolist = bio;
bio->bi_private = r10_bio;
@@ -3142,6 +3141,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
if (rdev == NULL || bio == NULL ||
test_bit(Faulty, &rdev->flags))
break;
+ bio_reset(bio);
bio->bi_next = biolist;
biolist = bio;
bio->bi_private = r10_bio;
@@ -3240,7 +3240,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
r10_bio->devs[i].repl_bio->bi_end_io = NULL;
bio = r10_bio->devs[i].bio;
- bio->bi_end_io = NULL;
+ bio_reset(bio);
clear_bit(BIO_UPTODATE, &bio->bi_flags);
if (conf->mirrors[d].rdev == NULL ||
test_bit(Faulty, &conf->mirrors[d].rdev->flags))
@@ -3277,6 +3277,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
/* Need to set up for writing to the replacement */
bio = r10_bio->devs[i].repl_bio;
+ bio_reset(bio);
clear_bit(BIO_UPTODATE, &bio->bi_flags);
sector = r10_bio->devs[i].addr;
@@ -3310,17 +3311,6 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
}
}
- for (bio = biolist; bio ; bio=bio->bi_next) {
-
- bio->bi_flags &= ~(BIO_POOL_MASK - 1);
- if (bio->bi_end_io)
- bio->bi_flags |= 1 << BIO_UPTODATE;
- bio->bi_vcnt = 0;
- bio->bi_idx = 0;
- bio->bi_phys_segments = 0;
- bio->bi_size = 0;
- }
-
nr_sectors = 0;
if (sector_nr + max_sync < max_sector)
max_sector = sector_nr + max_sync;
@@ -4390,17 +4380,14 @@ read_more:
}
if (!rdev2 || test_bit(Faulty, &rdev2->flags))
continue;
+
+ bio_reset(b);
b->bi_bdev = rdev2->bdev;
b->bi_sector = r10_bio->devs[s/2].addr + rdev2->new_data_offset;
b->bi_private = r10_bio;
b->bi_end_io = end_reshape_write;
b->bi_rw = WRITE;
- b->bi_flags &= ~(BIO_POOL_MASK - 1);
- b->bi_flags |= 1 << BIO_UPTODATE;
b->bi_next = blist;
- b->bi_vcnt = 0;
- b->bi_idx = 0;
- b->bi_size = 0;
blist = b;
}
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