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[Qemu-devel] [PULL for-2.7 22/25] sheepdog: Switch .bdrv_co_discard() to
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL for-2.7 22/25] sheepdog: Switch .bdrv_co_discard() to byte-based |
Date: |
Tue, 19 Jul 2016 19:48:12 +0100 |
From: Eric Blake <address@hidden>
Another step towards killing off sector-based block APIs.
Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
block/sheepdog.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/block/sheepdog.c b/block/sheepdog.c
index e739c56..66e1cb2 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -2800,8 +2800,8 @@ static int sd_load_vmstate(BlockDriverState *bs,
QEMUIOVector *qiov,
}
-static coroutine_fn int sd_co_discard(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors)
+static coroutine_fn int sd_co_pdiscard(BlockDriverState *bs, int64_t offset,
+ int count)
{
SheepdogAIOCB *acb;
BDRVSheepdogState *s = bs->opaque;
@@ -2811,7 +2811,7 @@ static coroutine_fn int sd_co_discard(BlockDriverState
*bs, int64_t sector_num,
uint32_t zero = 0;
if (!s->discard_supported) {
- return 0;
+ return 0;
}
memset(&discard_iov, 0, sizeof(discard_iov));
@@ -2820,7 +2820,10 @@ static coroutine_fn int sd_co_discard(BlockDriverState
*bs, int64_t sector_num,
iov.iov_len = sizeof(zero);
discard_iov.iov = &iov;
discard_iov.niov = 1;
- acb = sd_aio_setup(bs, &discard_iov, sector_num, nb_sectors);
+ assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0);
+ assert((count & (BDRV_SECTOR_SIZE - 1)) == 0);
+ acb = sd_aio_setup(bs, &discard_iov, offset >> BDRV_SECTOR_BITS,
+ count >> BDRV_SECTOR_BITS);
acb->aiocb_type = AIOCB_DISCARD_OBJ;
acb->aio_done_func = sd_finish_aiocb;
@@ -2954,7 +2957,7 @@ static BlockDriver bdrv_sheepdog = {
.bdrv_co_readv = sd_co_readv,
.bdrv_co_writev = sd_co_writev,
.bdrv_co_flush_to_disk = sd_co_flush_to_disk,
- .bdrv_co_discard = sd_co_discard,
+ .bdrv_co_pdiscard = sd_co_pdiscard,
.bdrv_co_get_block_status = sd_co_get_block_status,
.bdrv_snapshot_create = sd_snapshot_create,
@@ -2990,7 +2993,7 @@ static BlockDriver bdrv_sheepdog_tcp = {
.bdrv_co_readv = sd_co_readv,
.bdrv_co_writev = sd_co_writev,
.bdrv_co_flush_to_disk = sd_co_flush_to_disk,
- .bdrv_co_discard = sd_co_discard,
+ .bdrv_co_pdiscard = sd_co_pdiscard,
.bdrv_co_get_block_status = sd_co_get_block_status,
.bdrv_snapshot_create = sd_snapshot_create,
@@ -3026,7 +3029,7 @@ static BlockDriver bdrv_sheepdog_unix = {
.bdrv_co_readv = sd_co_readv,
.bdrv_co_writev = sd_co_writev,
.bdrv_co_flush_to_disk = sd_co_flush_to_disk,
- .bdrv_co_discard = sd_co_discard,
+ .bdrv_co_pdiscard = sd_co_pdiscard,
.bdrv_co_get_block_status = sd_co_get_block_status,
.bdrv_snapshot_create = sd_snapshot_create,
--
2.7.4
- [Qemu-devel] [PULL for-2.7 12/25] raw-posix: Switch paio_submit() to byte-based, (continued)
- [Qemu-devel] [PULL for-2.7 12/25] raw-posix: Switch paio_submit() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 13/25] rbd: Switch rbd_start_aio() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 14/25] block: Convert .bdrv_aio_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 15/25] block: Add .bdrv_co_pdiscard() driver callback, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 16/25] blkreplay: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 18/25] iscsi: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 17/25] gluster: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 19/25] nbd: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 20/25] qcow2: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 21/25] raw_bsd: Switch .bdrv_co_discard() to byte-based, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 22/25] sheepdog: Switch .bdrv_co_discard() to byte-based,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL for-2.7 23/25] block: Kill .bdrv_co_discard(), Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 24/25] nbd: Convert to byte-based interface, Stefan Hajnoczi, 2016/07/19
- [Qemu-devel] [PULL for-2.7 25/25] raw_bsd: Convert to byte-based interface, Stefan Hajnoczi, 2016/07/19
- Re: [Qemu-devel] [PULL for-2.7 00/25] Block patches, Peter Maydell, 2016/07/20