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block: Convert drivers to immutable biovecs

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Now that we've got a mechanism for immutable biovecs -
bi_iter.bi_bvec_done - we need to convert drivers to use primitives that
respect it instead of using the bvec array directly.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: NeilBrown <neilb@suse.de>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
This commit is contained in:
Kent Overstreet
2013-10-11 15:45:43 -07:00
parent 458b76ed2f
commit 003b5c5719
7 changed files with 88 additions and 118 deletions
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8
drivers/md/dm-raid1.c
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@@ -526,8 +526,8 @@ static void read_async_bio(struct mirror *m, struct bio *bio)
struct dm_io_region io;
struct dm_io_request io_req = {
.bi_rw = READ,
.mem.type = DM_IO_BVEC,
.mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
.mem.type = DM_IO_BIO,
.mem.ptr.bio = bio,
.notify.fn = read_callback,
.notify.context = bio,
.client = m->ms->io_client,
@@ -629,8 +629,8 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
struct mirror *m;
struct dm_io_request io_req = {
.bi_rw = WRITE | (bio->bi_rw & WRITE_FLUSH_FUA),
.mem.type = DM_IO_BVEC,
.mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
.mem.type = DM_IO_BIO,
.mem.ptr.bio = bio,
.notify.fn = write_callback,
.notify.context = bio,
.client = ms->io_client,