Commit 5ceb9e39 authored by Fam Zheng's avatar Fam Zheng Committed by Stefan Hajnoczi
Browse files

aio: Introduce aio_external_disabled 



This allows AioContext users to check the enable/disable state of
external clients.

Signed-off-by: default avatarFam Zheng <famz@redhat.com>
Message-id: 1446177989-6702-2-git-send-email-famz@redhat.com
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 8347c532

include/block/aio.h

+11 −0
Original line number Diff line number Diff line
@@ -405,6 +405,17 @@ static inline void aio_enable_external(AioContext *ctx) 
    atomic_dec(&ctx->external_disable_cnt);

}



/**

 * aio_external_disabled:

 * @ctx: the aio context

 *

 * Return true if the external clients are disabled.

 */

static inline bool aio_external_disabled(AioContext *ctx)

{

    return atomic_read(&ctx->external_disable_cnt);

}



/**

 * aio_node_check:

 * @ctx: the aio context