From 97b0385a346829cf03efe131a26a4b6a4cd0a21f Mon Sep 17 00:00:00 2001 From: Alexander Yarygin Date: Wed, 17 Jun 2015 13:37:19 +0300 Subject: [PATCH] block-backend: Introduce blk_drain() 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 Message-id: 1434537440-28236-2-git-send-email-yarygin@linux.vnet.ibm.com Signed-off-by: Stefan Hajnoczi --- 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, -- 2.7.4