From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36559) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vjq26-00023L-JX for qemu-devel@nongnu.org; Fri, 22 Nov 2013 07:40:32 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vjq20-0001Lc-CY for qemu-devel@nongnu.org; Fri, 22 Nov 2013 07:40:26 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43398) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vjq20-0001LR-4i for qemu-devel@nongnu.org; Fri, 22 Nov 2013 07:40:20 -0500 From: Paolo Bonzini Date: Fri, 22 Nov 2013 13:39:44 +0100 Message-Id: <1385124001-3576-3-git-send-email-pbonzini@redhat.com> In-Reply-To: <1385124001-3576-1-git-send-email-pbonzini@redhat.com> References: <1385124001-3576-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH v3 02/19] block: add flags to BlockRequest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, pl@kamp.de, ronniesahlberg@gmail.com, stefanha@redhat.com This lets bdrv_co_do_rw receive flags, so that it can be used for zero writes. Signed-off-by: Paolo Bonzini --- block.c | 17 +++++++++++------ include/block/block.h | 1 + 2 files changed, 12 insertions(+), 6 deletions(-) diff --git a/block.c b/block.c index 1b3e8b2..0665f35 100644 --- a/block.c +++ b/block.c @@ -74,6 +74,7 @@ static BlockDriverAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + BdrvRequestFlags flags, BlockDriverCompletionFunc *cb, void *opaque, bool is_write); @@ -3655,7 +3656,7 @@ BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, { trace_bdrv_aio_readv(bs, sector_num, nb_sectors, opaque); - return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, + return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, 0, cb, opaque, false); } @@ -3665,7 +3666,7 @@ BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, { trace_bdrv_aio_writev(bs, sector_num, nb_sectors, opaque); - return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, + return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, 0, cb, opaque, true); } @@ -3837,8 +3838,10 @@ int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs, int num_reqs) /* Run the aio requests. */ mcb->num_requests = num_reqs; for (i = 0; i < num_reqs; i++) { - bdrv_aio_writev(bs, reqs[i].sector, reqs[i].qiov, - reqs[i].nb_sectors, multiwrite_cb, mcb); + bdrv_co_aio_rw_vector(bs, reqs[i].sector, reqs[i].qiov, + reqs[i].nb_sectors, reqs[i].flags, + multiwrite_cb, mcb, + true); } return 0; @@ -3980,10 +3983,10 @@ static void coroutine_fn bdrv_co_do_rw(void *opaque) if (!acb->is_write) { acb->req.error = bdrv_co_do_readv(bs, acb->req.sector, - acb->req.nb_sectors, acb->req.qiov, 0); + acb->req.nb_sectors, acb->req.qiov, acb->req.flags); } else { acb->req.error = bdrv_co_do_writev(bs, acb->req.sector, - acb->req.nb_sectors, acb->req.qiov, 0); + acb->req.nb_sectors, acb->req.qiov, acb->req.flags); } acb->bh = qemu_bh_new(bdrv_co_em_bh, acb); @@ -3994,6 +3997,7 @@ static BlockDriverAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + BdrvRequestFlags flags, BlockDriverCompletionFunc *cb, void *opaque, bool is_write) @@ -4005,6 +4009,7 @@ static BlockDriverAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, acb->req.sector = sector_num; acb->req.nb_sectors = nb_sectors; acb->req.qiov = qiov; + acb->req.flags = flags; acb->is_write = is_write; acb->done = NULL; diff --git a/include/block/block.h b/include/block/block.h index 4d9e67c..703d875 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -311,6 +311,7 @@ typedef struct BlockRequest { /* Fields to be filled by multiwrite caller */ int64_t sector; int nb_sectors; + int flags; QEMUIOVector *qiov; BlockDriverCompletionFunc *cb; void *opaque; -- 1.8.4.2