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[Qemu-block] [PULL 17/20] blkdebug: Add "none" event
From: |
Max Reitz |
Subject: |
[Qemu-block] [PULL 17/20] blkdebug: Add "none" event |
Date: |
Fri, 14 Jun 2019 15:40:18 +0200 |
Together with @iotypes and @sector, this can be used to trap e.g. the
first read or write access to a certain sector without having to know
what happens internally in the block layer, i.e. which "real" events
happen right before such an access.
Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Message-id: address@hidden
Signed-off-by: Max Reitz <address@hidden>
---
qapi/block-core.json | 4 +++-
block/blkdebug.c | 2 ++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 34617a2c7a..60f903afa3 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -3244,6 +3244,8 @@
#
# @cluster_alloc_space: an allocation of file space for a cluster (since 4.1)
#
+# @none: triggers once at creation of the blkdebug node (since 4.1)
+#
# Since: 2.9
##
{ 'enum': 'BlkdebugEvent', 'prefix': 'BLKDBG',
@@ -3262,7 +3264,7 @@
'pwritev_rmw_tail', 'pwritev_rmw_after_tail', 'pwritev',
'pwritev_zero', 'pwritev_done', 'empty_image_prepare',
'l1_shrink_write_table', 'l1_shrink_free_l2_clusters',
- 'cor_write', 'cluster_alloc_space'] }
+ 'cor_write', 'cluster_alloc_space', 'none'] }
##
# @BlkdebugIOType:
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 3f3ec11230..1663ed25af 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -491,6 +491,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict
*options, int flags,
goto out;
}
+ bdrv_debug_event(bs, BLKDBG_NONE);
+
ret = 0;
out:
if (ret < 0) {
--
2.21.0
- [Qemu-block] [PULL 05/20] iotests: add iotest 256 for testing blockdev-backup across iothread contexts, (continued)
- [Qemu-block] [PULL 05/20] iotests: add iotest 256 for testing blockdev-backup across iothread contexts, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 09/20] hw/block/fdc: floppy command FIFO memory initialization, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 10/20] iotests: restrict 254 to support only qcow2, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 12/20] qapi/block-core: Overlays are not snapshots, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 11/20] qemu-img: Fix options leakage in img_rebase(), Max Reitz, 2019/06/14
- [Qemu-block] [PULL 14/20] qemu-img: Move quiet into ImgConvertState, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 13/20] blockdev: Overlays are not snapshots, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 15/20] qemu-img: Add salvaging mode to convert, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 16/20] blkdebug: Add @iotype error option, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 18/20] blkdebug: Inject errors on .bdrv_co_block_status(), Max Reitz, 2019/06/14
- [Qemu-block] [PULL 17/20] blkdebug: Add "none" event,
Max Reitz <=
- [Qemu-block] [PULL 19/20] iotests: Test qemu-img convert --salvage, Max Reitz, 2019/06/14
- [Qemu-block] [PULL 20/20] iotests: Test qemu-img convert -C --salvage, Max Reitz, 2019/06/14
- Re: [Qemu-block] [PULL 00/20] Block patches, Peter Maydell, 2019/06/14