From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53144) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5AjC-0007fk-Ih for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:37:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z5Aj9-0002vd-4X for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:37:54 -0400 Received: from e06smtp14.uk.ibm.com ([195.75.94.110]:52634) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5Aj8-0002vU-OK for qemu-devel@nongnu.org; Wed, 17 Jun 2015 06:37:51 -0400 Received: from /spool/local by e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 17 Jun 2015 11:37:47 +0100 From: Alexander Yarygin Date: Wed, 17 Jun 2015 13:37:19 +0300 Message-Id: <1434537440-28236-2-git-send-email-yarygin@linux.vnet.ibm.com> In-Reply-To: <1434537440-28236-1-git-send-email-yarygin@linux.vnet.ibm.com> References: <1434537440-28236-1-git-send-email-yarygin@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v3 1/2] block-backend: Introduce blk_drain() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , qemu-block@nongnu.org, Alexander Yarygin , Ekaterina Tumanova , Christian Borntraeger , Stefan Hajnoczi , Cornelia Huck , Paolo Bonzini This patch introduces the blk_drain() function which allows to replace blk_drain_all() when only one BlockDriverState needs to be drained. Cc: Christian Borntraeger Cc: Cornelia Huck Cc: Kevin Wolf Cc: Paolo Bonzini Cc: Stefan Hajnoczi Signed-off-by: Alexander Yarygin Reviewed-by: Paolo Bonzini Acked-by: Kevin Wolf --- block/block-backend.c | 5 +++++ include/sysemu/block-backend.h | 1 + 2 files changed, 6 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 93e46f3..aee8a12 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -700,6 +700,11 @@ int blk_flush_all(void) return bdrv_flush_all(); } +void blk_drain(BlockBackend *blk) +{ + bdrv_drain(blk->bs); +} + void blk_drain_all(void) { bdrv_drain_all(); diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index b4a4d5e..8fc960f 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -118,6 +118,7 @@ int blk_co_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors); int blk_co_flush(BlockBackend *blk); int blk_flush(BlockBackend *blk); int blk_flush_all(void); +void blk_drain(BlockBackend *blk); void blk_drain_all(void); BlockdevOnError blk_get_on_error(BlockBackend *blk, bool is_read); BlockErrorAction blk_get_error_action(BlockBackend *blk, bool is_read, -- 1.9.1