From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52352) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fUxHi-0005GY-TZ for qemu-devel@nongnu.org; Mon, 18 Jun 2018 12:45:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fUxHi-0006W5-1e for qemu-devel@nongnu.org; Mon, 18 Jun 2018 12:45:42 -0400 From: Kevin Wolf Date: Mon, 18 Jun 2018 18:45:00 +0200 Message-Id: <20180618164504.24488-32-kwolf@redhat.com> In-Reply-To: <20180618164504.24488-1-kwolf@redhat.com> References: <20180618164504.24488-1-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 31/35] block/mirror: Add MirrorBDSOpaque List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org From: Max Reitz This will allow us to access the block job data when the mirror block driver becomes more complex. Signed-off-by: Max Reitz Reviewed-by: Fam Zheng Message-id: 20180613181823.13618-11-mreitz@redhat.com Signed-off-by: Max Reitz --- block/mirror.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/block/mirror.c b/block/mirror.c index abf231c478..7da5e43c0d 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -76,6 +76,10 @@ typedef struct MirrorBlockJob { bool initial_zeroing_ongoing; } MirrorBlockJob; +typedef struct MirrorBDSOpaque { + MirrorBlockJob *job; +} MirrorBDSOpaque; + struct MirrorOp { MirrorBlockJob *s; QEMUIOVector qiov; @@ -599,6 +603,7 @@ static void mirror_exit(Job *job, void *opaque) MirrorBlockJob *s = container_of(job, MirrorBlockJob, common.job); BlockJob *bjob = &s->common; MirrorExitData *data = opaque; + MirrorBDSOpaque *bs_opaque = s->mirror_top_bs->opaque; AioContext *replace_aio_context = NULL; BlockDriverState *src = s->mirror_top_bs->backing->bs; BlockDriverState *target_bs = blk_bs(s->target); @@ -691,6 +696,7 @@ static void mirror_exit(Job *job, void *opaque) blk_set_perm(bjob->blk, 0, BLK_PERM_ALL, &error_abort); blk_insert_bs(bjob->blk, mirror_top_bs, &error_abort); + bs_opaque->job = NULL; job_completed(job, data->ret, NULL); g_free(data); @@ -1230,6 +1236,7 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, Error **errp) { MirrorBlockJob *s; + MirrorBDSOpaque *bs_opaque; BlockDriverState *mirror_top_bs; bool target_graph_mod; bool target_is_backing; @@ -1265,6 +1272,8 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, mirror_top_bs->total_sectors = bs->total_sectors; mirror_top_bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED; mirror_top_bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED; + bs_opaque = g_new0(MirrorBDSOpaque, 1); + mirror_top_bs->opaque = bs_opaque; bdrv_set_aio_context(mirror_top_bs, bdrv_get_aio_context(bs)); /* bdrv_append takes ownership of the mirror_top_bs reference, need to keep @@ -1289,6 +1298,8 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, if (!s) { goto fail; } + bs_opaque->job = s; + /* The block job now has a reference to this node */ bdrv_unref(mirror_top_bs); @@ -1378,6 +1389,7 @@ fail: g_free(s->replaces); blk_unref(s->target); + bs_opaque->job = NULL; job_early_fail(&s->common.job); } -- 2.13.6