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authorEric Blake <eblake@redhat.com>2016-07-15 17:22:56 -0600
committerStefan Hajnoczi <stefanha@redhat.com>2016-07-20 14:11:55 +0100
commit7bbca9e290a9c7c217b5a24fc6094e91e54bd05d (patch)
tree06780a0671929b3525a02298de0233f7a46a9d90 /block
parent36e3b2e7338a5a5323f7ca9d8d4d439e971a18dd (diff)
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rbd: Switch rbd_start_aio() to byte-based
The internal function converts to byte-based before calling into RBD code; hoist the conversion to the callers so that callers can then be switched to byte-based themselves. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1468624988-423-8-git-send-email-eblake@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/rbd.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/block/rbd.c b/block/rbd.c
index 0a5840d..01cbb63 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -649,9 +649,9 @@ static int rbd_aio_flush_wrapper(rbd_image_t image,
}
static BlockAIOCB *rbd_start_aio(BlockDriverState *bs,
- int64_t sector_num,
+ int64_t off,
QEMUIOVector *qiov,
- int nb_sectors,
+ int64_t size,
BlockCompletionFunc *cb,
void *opaque,
RBDAIOCmd cmd)
@@ -659,7 +659,6 @@ static BlockAIOCB *rbd_start_aio(BlockDriverState *bs,
RBDAIOCB *acb;
RADOSCB *rcb = NULL;
rbd_completion_t c;
- int64_t off, size;
char *buf;
int r;
@@ -668,6 +667,7 @@ static BlockAIOCB *rbd_start_aio(BlockDriverState *bs,
acb = qemu_aio_get(&rbd_aiocb_info, bs, cb, opaque);
acb->cmd = cmd;
acb->qiov = qiov;
+ assert(!qiov || qiov->size == size);
if (cmd == RBD_AIO_DISCARD || cmd == RBD_AIO_FLUSH) {
acb->bounce = NULL;
} else {
@@ -687,9 +687,6 @@ static BlockAIOCB *rbd_start_aio(BlockDriverState *bs,
buf = acb->bounce;
- off = sector_num * BDRV_SECTOR_SIZE;
- size = nb_sectors * BDRV_SECTOR_SIZE;
-
rcb = g_new(RADOSCB, 1);
rcb->acb = acb;
rcb->buf = buf;
@@ -739,7 +736,8 @@ static BlockAIOCB *qemu_rbd_aio_readv(BlockDriverState *bs,
BlockCompletionFunc *cb,
void *opaque)
{
- return rbd_start_aio(bs, sector_num, qiov, nb_sectors, cb, opaque,
+ return rbd_start_aio(bs, sector_num << BDRV_SECTOR_BITS, qiov,
+ nb_sectors << BDRV_SECTOR_BITS, cb, opaque,
RBD_AIO_READ);
}
@@ -750,7 +748,8 @@ static BlockAIOCB *qemu_rbd_aio_writev(BlockDriverState *bs,
BlockCompletionFunc *cb,
void *opaque)
{
- return rbd_start_aio(bs, sector_num, qiov, nb_sectors, cb, opaque,
+ return rbd_start_aio(bs, sector_num << BDRV_SECTOR_BITS, qiov,
+ nb_sectors << BDRV_SECTOR_BITS, cb, opaque,
RBD_AIO_WRITE);
}
@@ -937,7 +936,8 @@ static BlockAIOCB* qemu_rbd_aio_discard(BlockDriverState *bs,
BlockCompletionFunc *cb,
void *opaque)
{
- return rbd_start_aio(bs, sector_num, NULL, nb_sectors, cb, opaque,
+ return rbd_start_aio(bs, sector_num << BDRV_SECTOR_BITS, NULL,
+ nb_sectors << BDRV_SECTOR_BITS, cb, opaque,
RBD_AIO_DISCARD);
}
#endif