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| author | Ting Wang <kathy.wangting@huawei.com> | 2015-06-26 17:37:35 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2015-07-07 14:27:14 +0100 |
| commit | 970311646a701eecb103eb28093e8924d2fa6861 (patch) | |
| tree | b29db635f79eb8297b1fa35a9d60c3eb523e326b | |
| parent | 25d9747b6427de8253221d544b45e50888d4cef7 (diff) | |
| download | qemu-970311646a701eecb103eb28093e8924d2fa6861.zip qemu-970311646a701eecb103eb28093e8924d2fa6861.tar.gz qemu-970311646a701eecb103eb28093e8924d2fa6861.tar.bz2 | |
blockjob: add block_job_release function
There is job resource leak in function mirror_start_job,
although bdrv_create_dirty_bitmap is unlikely failed.
Add block_job_release for each release when needed.
Signed-off-by: Ting Wang <kathy.wangting@huawei.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1435311455-56048-1-git-send-email-kathy.wangting@huawei.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | block/mirror.c | 2 | ||||
| -rw-r--r-- | blockjob.c | 20 | ||||
| -rw-r--r-- | include/block/blockjob.h | 8 |
3 files changed, 22 insertions, 8 deletions
diff --git a/block/mirror.c b/block/mirror.c index 8888cea..d409337 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -708,6 +708,8 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, s->dirty_bitmap = bdrv_create_dirty_bitmap(bs, granularity, NULL, errp); if (!s->dirty_bitmap) { + g_free(s->replaces); + block_job_release(bs); return; } bdrv_set_enable_write_cache(s->target, true); @@ -66,10 +66,7 @@ void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, block_job_set_speed(job, speed, &local_err); if (local_err) { - bs->job = NULL; - bdrv_op_unblock_all(bs, job->blocker); - error_free(job->blocker); - g_free(job); + block_job_release(bs); error_propagate(errp, local_err); return NULL; } @@ -77,18 +74,25 @@ void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, return job; } -void block_job_completed(BlockJob *job, int ret) +void block_job_release(BlockDriverState *bs) { - BlockDriverState *bs = job->bs; + BlockJob *job = bs->job; - assert(bs->job == job); - job->cb(job->opaque, ret); bs->job = NULL; bdrv_op_unblock_all(bs, job->blocker); error_free(job->blocker); g_free(job); } +void block_job_completed(BlockJob *job, int ret) +{ + BlockDriverState *bs = job->bs; + + assert(bs->job == job); + job->cb(job->opaque, ret); + block_job_release(bs); +} + void block_job_set_speed(BlockJob *job, int64_t speed, Error **errp) { Error *local_err = NULL; diff --git a/include/block/blockjob.h b/include/block/blockjob.h index 57d8ef1..dd9d5e6 100644 --- a/include/block/blockjob.h +++ b/include/block/blockjob.h @@ -166,6 +166,14 @@ void block_job_sleep_ns(BlockJob *job, QEMUClockType type, int64_t ns); void block_job_yield(BlockJob *job); /** + * block_job_release: + * @bs: The block device. + * + * Release job resources when an error occurred or job completed. + */ +void block_job_release(BlockDriverState *bs); + +/** * block_job_completed: * @job: The job being completed. * @ret: The status code. |