From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=60639 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q2S3m-0001xA-MM for qemu-devel@nongnu.org; Wed, 23 Mar 2011 13:41:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q2S3k-0003tJ-AI for qemu-devel@nongnu.org; Wed, 23 Mar 2011 13:41:30 -0400 Received: from mtagate1.uk.ibm.com ([194.196.100.161]:49707) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q2S3k-0003rP-0a for qemu-devel@nongnu.org; Wed, 23 Mar 2011 13:41:28 -0400 Received: from d06nrmr1806.portsmouth.uk.ibm.com (d06nrmr1806.portsmouth.uk.ibm.com [9.149.39.193]) by mtagate1.uk.ibm.com (8.13.1/8.13.1) with ESMTP id p2NHfLFx003660 for ; Wed, 23 Mar 2011 17:41:21 GMT Received: from d06av10.portsmouth.uk.ibm.com (d06av10.portsmouth.uk.ibm.com [9.149.37.251]) by d06nrmr1806.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p2NHfnpH2023666 for ; Wed, 23 Mar 2011 17:41:49 GMT Received: from d06av10.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p2NHfL7G016792 for ; Wed, 23 Mar 2011 11:41:21 -0600 From: Stefan Hajnoczi Date: Wed, 23 Mar 2011 17:40:53 +0000 Message-Id: <1300902055-25850-2-git-send-email-stefanha@linux.vnet.ibm.com> In-Reply-To: <1300902055-25850-1-git-send-email-stefanha@linux.vnet.ibm.com> References: <1300902055-25850-1-git-send-email-stefanha@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 1/3] trace: Trace bdrv_set_locked() List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , Amit Shah , Anthony Liguori , Ryan Harper , Stefan Hajnoczi It can be handy to know when the guest locks/unlocks the CD-ROM tray. This trace event makes that possible. Signed-off-by: Stefan Hajnoczi --- block.c | 2 ++ trace-events | 1 + 2 files changed, 3 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index b476479..8f224b4 100644 --- a/block.c +++ b/block.c @@ -2696,6 +2696,8 @@ void bdrv_set_locked(BlockDriverState *bs, int locked) { BlockDriver *drv = bs->drv; + trace_bdrv_set_locked(bs, locked); + bs->locked = locked; if (drv && drv->bdrv_set_locked) { drv->bdrv_set_locked(bs, locked); diff --git a/trace-events b/trace-events index e6138ea..f87f683 100644 --- a/trace-events +++ b/trace-events @@ -53,6 +53,7 @@ disable bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p" disable bdrv_aio_multiwrite_latefail(void *mcb, int i) "mcb %p i %d" disable bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" disable bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" +disable bdrv_set_locked(void *bs, int locked) "bs %p locked %d" # hw/virtio-blk.c disable virtio_blk_req_complete(void *req, int status) "req %p status %d" -- 1.7.4.1