diff options
| -rw-r--r-- | block/backup.c | 3 | ||||
| -rw-r--r-- | block/commit.c | 2 | ||||
| -rw-r--r-- | block/mirror.c | 2 | ||||
| -rw-r--r-- | block/stream.c | 2 | ||||
| -rw-r--r-- | blockjob.c | 29 | ||||
| -rw-r--r-- | include/block/blockjob.h | 8 | ||||
| -rw-r--r-- | tests/test-blockjob-txn.c | 7 |
7 files changed, 40 insertions, 13 deletions
diff --git a/block/backup.c b/block/backup.c index f87f8d539b..19c587c926 100644 --- a/block/backup.c +++ b/block/backup.c @@ -541,7 +541,8 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target, goto error; } - job = block_job_create(&backup_job_driver, bs, speed, cb, opaque, errp); + job = block_job_create(NULL, &backup_job_driver, bs, speed, + cb, opaque, errp); if (!job) { goto error; } diff --git a/block/commit.c b/block/commit.c index 379efb7c92..137bb03297 100644 --- a/block/commit.c +++ b/block/commit.c @@ -236,7 +236,7 @@ void commit_start(BlockDriverState *bs, BlockDriverState *base, return; } - s = block_job_create(&commit_job_driver, bs, speed, cb, opaque, errp); + s = block_job_create(NULL, &commit_job_driver, bs, speed, cb, opaque, errp); if (!s) { return; } diff --git a/block/mirror.c b/block/mirror.c index 6e3dbd257b..08d88cad8a 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -873,7 +873,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, buf_size = DEFAULT_MIRROR_BUF_SIZE; } - s = block_job_create(driver, bs, speed, cb, opaque, errp); + s = block_job_create(NULL, driver, bs, speed, cb, opaque, errp); if (!s) { return; } diff --git a/block/stream.c b/block/stream.c index c0efbda34e..e4319d37e5 100644 --- a/block/stream.c +++ b/block/stream.c @@ -226,7 +226,7 @@ void stream_start(BlockDriverState *bs, BlockDriverState *base, { StreamBlockJob *s; - s = block_job_create(&stream_job_driver, bs, speed, cb, opaque, errp); + s = block_job_create(NULL, &stream_job_driver, bs, speed, cb, opaque, errp); if (!s) { return; } diff --git a/blockjob.c b/blockjob.c index ca2291b5c5..511c0db123 100644 --- a/blockjob.c +++ b/blockjob.c @@ -33,6 +33,7 @@ #include "qapi/qmp/qerror.h" #include "qapi/qmp/qjson.h" #include "qemu/coroutine.h" +#include "qemu/id.h" #include "qmp-commands.h" #include "qemu/timer.h" #include "qapi-event.h" @@ -116,9 +117,9 @@ static void block_job_detach_aio_context(void *opaque) block_job_unref(job); } -void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, - int64_t speed, BlockCompletionFunc *cb, - void *opaque, Error **errp) +void *block_job_create(const char *job_id, const BlockJobDriver *driver, + BlockDriverState *bs, int64_t speed, + BlockCompletionFunc *cb, void *opaque, Error **errp) { BlockBackend *blk; BlockJob *job; @@ -129,6 +130,26 @@ void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, return NULL; } + if (job_id == NULL) { + job_id = bdrv_get_device_name(bs); + /* Assign a default ID if the BDS does not have a device + * name. We'll get rid of this soon when we finish extending + * the API of all commands that create block jobs. */ + if (job_id[0] == '\0') { + job_id = "default_job"; + } + } + + if (!id_wellformed(job_id)) { + error_setg(errp, "Invalid job ID '%s'", job_id); + return NULL; + } + + if (block_job_get(job_id)) { + error_setg(errp, "Job ID '%s' already in use", job_id); + return NULL; + } + blk = blk_new(); blk_insert_bs(blk, bs); @@ -139,7 +160,7 @@ void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, bdrv_op_unblock(bs, BLOCK_OP_TYPE_DATAPLANE, job->blocker); job->driver = driver; - job->id = g_strdup(bdrv_get_device_name(bs)); + job->id = g_strdup(job_id); job->blk = blk; job->cb = cb; job->opaque = opaque; diff --git a/include/block/blockjob.h b/include/block/blockjob.h index 934bf1ce2d..4ddb4ae2e1 100644 --- a/include/block/blockjob.h +++ b/include/block/blockjob.h @@ -223,6 +223,8 @@ BlockJob *block_job_get(const char *id); /** * block_job_create: + * @job_id: The id of the newly-created job, or %NULL to have one + * generated automatically. * @job_type: The class object for the newly-created job. * @bs: The block * @speed: The maximum speed, in bytes per second, or 0 for unlimited. @@ -239,9 +241,9 @@ BlockJob *block_job_get(const char *id); * This function is not part of the public job interface; it should be * called from a wrapper that is specific to the job type. */ -void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, - int64_t speed, BlockCompletionFunc *cb, - void *opaque, Error **errp); +void *block_job_create(const char *job_id, const BlockJobDriver *driver, + BlockDriverState *bs, int64_t speed, + BlockCompletionFunc *cb, void *opaque, Error **errp); /** * block_job_sleep_ns: diff --git a/tests/test-blockjob-txn.c b/tests/test-blockjob-txn.c index d3030f1566..50e232a709 100644 --- a/tests/test-blockjob-txn.c +++ b/tests/test-blockjob-txn.c @@ -91,11 +91,14 @@ static BlockJob *test_block_job_start(unsigned int iterations, BlockDriverState *bs; TestBlockJob *s; TestBlockJobCBData *data; + static unsigned counter; + char job_id[24]; data = g_new0(TestBlockJobCBData, 1); bs = bdrv_new(); - s = block_job_create(&test_block_job_driver, bs, 0, test_block_job_cb, - data, &error_abort); + snprintf(job_id, sizeof(job_id), "job%u", counter++); + s = block_job_create(job_id, &test_block_job_driver, bs, 0, + test_block_job_cb, data, &error_abort); s->iterations = iterations; s->use_timer = use_timer; s->rc = rc; |