block_job_create() takes int64_t speed. The underlying RateLimit abstraction takes uint64_t. block_job_create() converts from int64_t to uint64_t, rejecting negative speed.
Lift this check and conversion out of block_job_create() into its callers. I'm going to lift it further until it falls off the top. Signed-off-by: Markus Armbruster <arm...@redhat.com> --- block/backup.c | 5 +++++ block/commit.c | 6 ++++++ block/mirror.c | 6 ++++++ block/stream.c | 6 ++++++ blockjob.c | 8 +------- include/block/blockjob_int.h | 2 +- 6 files changed, 25 insertions(+), 8 deletions(-) diff --git a/block/backup.c b/block/backup.c index 359e526..3a97836 100644 --- a/block/backup.c +++ b/block/backup.c @@ -577,6 +577,11 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs, return NULL; } + if (speed < 0) { + error_setg(errp, QERR_INVALID_PARAMETER, "speed"); + return NULL; + } + if (sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) { if (!sync_bitmap) { error_setg(errp, "must provide a valid bitmap name for " diff --git a/block/commit.c b/block/commit.c index ae9191d..86d780e 100644 --- a/block/commit.c +++ b/block/commit.c @@ -309,6 +309,12 @@ void commit_start(const char *job_id, BlockDriverState *bs, return; } + if (speed < 0) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "speed", + "a non-negative rate limit"); + return; + } + s = block_job_create(job_id, &commit_job_driver, bs, 0, BLK_PERM_ALL, speed, BLOCK_JOB_DEFAULT, NULL, NULL, errp); if (!s) { diff --git a/block/mirror.c b/block/mirror.c index 6c3b446..af54163 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1139,6 +1139,12 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, Error *local_err = NULL; int ret; + if (speed < 0) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "speed", + "a non-negative rate limit"); + return; + } + if (granularity == 0) { granularity = bdrv_get_default_bitmap_granularity(target); } diff --git a/block/stream.c b/block/stream.c index 9a145f2..fefcdb9 100644 --- a/block/stream.c +++ b/block/stream.c @@ -237,6 +237,12 @@ void stream_start(const char *job_id, BlockDriverState *bs, } } + if (speed < 0) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "speed", + "a non-negative rate limit"); + return; + } + /* Prevent concurrent jobs trying to modify the graph structure here, we * already have our own plans. Also don't allow resize as the image size is * queried only at the job start and then cached. */ diff --git a/blockjob.c b/blockjob.c index 998ffef..335099e 100644 --- a/blockjob.c +++ b/blockjob.c @@ -604,7 +604,7 @@ static void block_job_event_completed(BlockJob *job, const char *msg) void *block_job_create(const char *job_id, const BlockJobDriver *driver, BlockDriverState *bs, uint64_t perm, - uint64_t shared_perm, int64_t speed, int flags, + uint64_t shared_perm, uint64_t speed, int flags, BlockCompletionFunc *cb, void *opaque, Error **errp) { BlockBackend *blk; @@ -641,12 +641,6 @@ void *block_job_create(const char *job_id, const BlockJobDriver *driver, } } - if (speed < 0) { - error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "speed", - "a non-negative rate limit"); - return NULL; - } - blk = blk_new(perm, shared_perm); ret = blk_insert_bs(blk, bs, errp); if (ret < 0) { diff --git a/include/block/blockjob_int.h b/include/block/blockjob_int.h index dadfd8c..33472ba 100644 --- a/include/block/blockjob_int.h +++ b/include/block/blockjob_int.h @@ -133,7 +133,7 @@ struct BlockJobDriver { */ void *block_job_create(const char *job_id, const BlockJobDriver *driver, BlockDriverState *bs, uint64_t perm, - uint64_t shared_perm, int64_t speed, int flags, + uint64_t shared_perm, uint64_t speed, int flags, BlockCompletionFunc *cb, void *opaque, Error **errp); /** -- 2.7.5