Commit 97b0385a authored by Alexander Yarygin's avatar Alexander Yarygin Committed by Stefan Hajnoczi
Browse files

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 <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarAlexander Yarygin <yarygin@linux.vnet.ibm.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Acked-by: default avatarKevin Wolf <kwolf@redhat.com>
Message-id: 1434537440-28236-2-git-send-email-yarygin@linux.vnet.ibm.com
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 2f388b93

block/block-backend.c

+5 −0
Original line number Diff line number Diff line
@@ -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();

include/sysemu/block-backend.h

+1 −0
Original line number Diff line number Diff line
@@ -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,