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authorEric Blake <eblake@redhat.com>2017-07-07 07:44:47 -0500
committerKevin Wolf <kwolf@redhat.com>2017-07-10 13:18:06 +0200
commite6f2419389a841260e0323ae72751ab489ec6dcc (patch)
tree5578a1849013aeafdabdd38506737040328871a8 /block
parentb436982f04fb33bb29fcdea190bd1fdc97dc65ef (diff)
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mirror: Switch mirror_do_zero_or_discard() to byte-based
We are gradually converting to byte-based interfaces, as they are easier to reason about than sector-based. Convert another internal function (no semantic change). Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/mirror.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/block/mirror.c b/block/mirror.c
index 10f4e9b..60eefbd 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -305,8 +305,8 @@ static int mirror_do_read(MirrorBlockJob *s, int64_t sector_num,
}
static void mirror_do_zero_or_discard(MirrorBlockJob *s,
- int64_t sector_num,
- int nb_sectors,
+ int64_t offset,
+ uint64_t bytes,
bool is_discard)
{
MirrorOp *op;
@@ -315,16 +315,16 @@ static void mirror_do_zero_or_discard(MirrorBlockJob *s,
* so the freeing in mirror_iteration_done is nop. */
op = g_new0(MirrorOp, 1);
op->s = s;
- op->offset = sector_num * BDRV_SECTOR_SIZE;
- op->bytes = nb_sectors * BDRV_SECTOR_SIZE;
+ op->offset = offset;
+ op->bytes = bytes;
s->in_flight++;
- s->bytes_in_flight += nb_sectors * BDRV_SECTOR_SIZE;
+ s->bytes_in_flight += bytes;
if (is_discard) {
- blk_aio_pdiscard(s->target, sector_num << BDRV_SECTOR_BITS,
+ blk_aio_pdiscard(s->target, offset,
op->bytes, mirror_write_complete, op);
} else {
- blk_aio_pwrite_zeroes(s->target, sector_num * BDRV_SECTOR_SIZE,
+ blk_aio_pwrite_zeroes(s->target, offset,
op->bytes, s->unmap ? BDRV_REQ_MAY_UNMAP : 0,
mirror_write_complete, op);
}
@@ -453,7 +453,8 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
break;
case MIRROR_METHOD_ZERO:
case MIRROR_METHOD_DISCARD:
- mirror_do_zero_or_discard(s, sector_num, io_sectors,
+ mirror_do_zero_or_discard(s, sector_num * BDRV_SECTOR_SIZE,
+ io_sectors * BDRV_SECTOR_SIZE,
mirror_method == MIRROR_METHOD_DISCARD);
if (write_zeroes_ok) {
io_bytes_acct = 0;
@@ -657,7 +658,8 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s)
continue;
}
- mirror_do_zero_or_discard(s, sector_num, nb_sectors, false);
+ mirror_do_zero_or_discard(s, sector_num * BDRV_SECTOR_SIZE,
+ nb_sectors * BDRV_SECTOR_SIZE, false);
sector_num += nb_sectors;
}