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| author | Max Reitz <mreitz@redhat.com> | 2019-05-07 22:35:05 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-06-14 14:16:57 +0200 |
| commit | f8cec157cb7f04cb247786f8776ebfcebd9b61be (patch) | |
| tree | a3aad02b9ab200375e62123d9ed110fb0f324007 | |
| parent | 16789db3de64147c7271d30a9d379b2a8aa2b81e (diff) | |
| download | qemu-f8cec157cb7f04cb247786f8776ebfcebd9b61be.zip qemu-f8cec157cb7f04cb247786f8776ebfcebd9b61be.tar.gz qemu-f8cec157cb7f04cb247786f8776ebfcebd9b61be.tar.bz2 | |
blkdebug: Add "none" event
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 <mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190507203508.18026-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
| -rw-r--r-- | block/blkdebug.c | 2 | ||||
| -rw-r--r-- | qapi/block-core.json | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c index 3f3ec11..1663ed2 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) { diff --git a/qapi/block-core.json b/qapi/block-core.json index 34617a2..60f903a 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: |