diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2020-05-05 16:46:37 +0100 |
---|---|---|
committer | Peter Maydell <peter.maydell@linaro.org> | 2020-05-05 16:46:37 +0100 |
commit | ea1329bb3a8d5cd25b70e3dbf73e7ded4d5ad756 (patch) | |
tree | d432b9112c080f23593c66efee6b9bec3dd0caa1 | |
parent | f19d118bed77bb95681b07f4e76dbb700c16918d (diff) | |
parent | 4ce5dd3e9b5ee0fac18625860eb3727399ee965e (diff) | |
download | qemu-ea1329bb3a8d5cd25b70e3dbf73e7ded4d5ad756.zip qemu-ea1329bb3a8d5cd25b70e3dbf73e7ded4d5ad756.tar.gz qemu-ea1329bb3a8d5cd25b70e3dbf73e7ded4d5ad756.tar.bz2 |
Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-05-05' into staging
Block patches:
- Asynchronous copying for block-copy (i.e., the backup job)
- Allow resizing of qcow2 images when they have internal snapshots
- iotests: Logging improvements for Python tests
- iotest 153 fix, and block comment cleanups
# gpg: Signature made Tue 05 May 2020 13:56:58 BST
# gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg: issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2020-05-05: (24 commits)
block/block-copy: use aio-task-pool API
block/block-copy: refactor task creation
block/block-copy: add state pointer to BlockCopyTask
block/block-copy: alloc task on each iteration
block/block-copy: rename in-flight requests to tasks
Fix iotest 153
block: Comment cleanups
qcow2: Tweak comment about bitmaps vs. resize
qcow2: Allow resize of images with internal snapshots
block: Add blk_new_with_bs() helper
iotests: use python logging for iotests.log()
iotests: Mark verify functions as private
iotest 258: use script_main
iotests: add script_initialize
iotests: add hmp helper with logging
iotests: limit line length to 79 chars
iotests: touch up log function signature
iotests: drop pre-Python 3.4 compatibility code
iotests: alphabetize standard imports
iotests: add pylintrc file
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
71 files changed, 727 insertions, 385 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 17ed6d8..f494486 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -356,6 +356,29 @@ BlockBackend *blk_new(AioContext *ctx, uint64_t perm, uint64_t shared_perm) } /* + * Create a new BlockBackend connected to an existing BlockDriverState. + * + * @perm is a bitmasks of BLK_PERM_* constants which describes the + * permissions to request for @bs that is attached to this + * BlockBackend. @shared_perm is a bitmask which describes which + * permissions may be granted to other users of the attached node. + * Both sets of permissions can be changed later using blk_set_perm(). + * + * Return the new BlockBackend on success, null on failure. + */ +BlockBackend *blk_new_with_bs(BlockDriverState *bs, uint64_t perm, + uint64_t shared_perm, Error **errp) +{ + BlockBackend *blk = blk_new(bdrv_get_aio_context(bs), perm, shared_perm); + + if (blk_insert_bs(blk, bs, errp) < 0) { + blk_unref(blk); + return NULL; + } + return blk; +} + +/* * Creates a new BlockBackend, opens a new BlockDriverState, and connects both. * The new BlockBackend is in the main AioContext. * diff --git a/block/block-copy.c b/block/block-copy.c index 05227e1..0350068 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -19,17 +19,37 @@ #include "block/block-copy.h" #include "sysemu/block-backend.h" #include "qemu/units.h" +#include "qemu/coroutine.h" +#include "block/aio_task.h" #define BLOCK_COPY_MAX_COPY_RANGE (16 * MiB) #define BLOCK_COPY_MAX_BUFFER (1 * MiB) #define BLOCK_COPY_MAX_MEM (128 * MiB) +#define BLOCK_COPY_MAX_WORKERS 64 -typedef struct BlockCopyInFlightReq { +static coroutine_fn int block_copy_task_entry(AioTask *task); + +typedef struct BlockCopyCallState { + bool failed; + bool error_is_read; +} BlockCopyCallState; + +typedef struct BlockCopyTask { + AioTask task; + + BlockCopyState *s; + BlockCopyCallState *call_state; int64_t offset; int64_t bytes; - QLIST_ENTRY(BlockCopyInFlightReq) list; - CoQueue wait_queue; /* coroutines blocked on this request */ -} BlockCopyInFlightReq; + bool zeroes; + QLIST_ENTRY(BlockCopyTask) list; + CoQueue wait_queue; /* coroutines blocked on this task */ +} BlockCopyTask; + +static int64_t task_end(BlockCopyTask *task) +{ + return task->offset + task->bytes; +} typedef struct BlockCopyState { /* @@ -45,7 +65,7 @@ typedef struct BlockCopyState { bool use_copy_range; int64_t copy_size; uint64_t len; - QLIST_HEAD(, BlockCopyInFlightReq) inflight_reqs; + QLIST_HEAD(, BlockCopyTask) tasks; BdrvRequestFlags write_flags; @@ -73,15 +93,14 @@ typedef struct BlockCopyState { SharedResource *mem; } BlockCopyState; -static BlockCopyInFlightReq *find_conflicting_inflight_req(BlockCopyState *s, - int64_t offset, - int64_t bytes) +static BlockCopyTask *find_conflicting_task(BlockCopyState *s, + int64_t offset, int64_t bytes) { - BlockCopyInFlightReq *req; + BlockCopyTask *t; - QLIST_FOREACH(req, &s->inflight_reqs, list) { - if (offset + bytes > req->offset && offset < req->offset + req->bytes) { - return req; + QLIST_FOREACH(t, &s->tasks, list) { + if (offset + bytes > t->offset && offset < t->offset + t->bytes) { + return t; } } @@ -89,73 +108,92 @@ static BlockCopyInFlightReq *find_conflicting_inflight_req(BlockCopyState *s, } /* - * If there are no intersecting requests return false. Otherwise, wait for the - * first found intersecting request to finish and return true. + * If there are no intersecting tasks return false. Otherwise, wait for the + * first found intersecting tasks to finish and return true. */ static bool coroutine_fn block_copy_wait_one(BlockCopyState *s, int64_t offset, int64_t bytes) { - BlockCopyInFlightReq *req = find_conflicting_inflight_req(s, offset, bytes); + BlockCopyTask *task = find_conflicting_task(s, offset, bytes); - if (!req) { + if (!task) { return false; } - qemu_co_queue_wait(&req->wait_queue, NULL); + qemu_co_queue_wait(&task->wait_queue, NULL); return true; } -/* Called only on full-dirty region */ -static void block_copy_inflight_req_begin(BlockCopyState *s, - BlockCopyInFlightReq *req, - int64_t offset, int64_t bytes) +/* + * Search for the first dirty area in offset/bytes range and create task at + * the beginning of it. + */ +static BlockCopyTask *block_copy_task_create(BlockCopyState *s, + BlockCopyCallState *call_state, + int64_t offset, int64_t bytes) { - assert(!find_conflicting_inflight_req(s, offset, bytes)); + BlockCopyTask *task; + + if (!bdrv_dirty_bitmap_next_dirty_area(s->copy_bitmap, + offset, offset + bytes, + s->copy_size, &offset, &bytes)) + { + return NULL; + } + + /* region is dirty, so no existent tasks possible in it */ + assert(!find_conflicting_task(s, offset, bytes)); bdrv_reset_dirty_bitmap(s->copy_bitmap, offset, bytes); s->in_flight_bytes += bytes; - req->offset = offset; - req->bytes = bytes; - qemu_co_queue_init(&req->wait_queue); - QLIST_INSERT_HEAD(&s->inflight_reqs, req, list); + task = g_new(BlockCopyTask, 1); + *task = (BlockCopyTask) { + .task.func = block_copy_task_entry, + .s = s, + .call_state = call_state, + .offset = offset, + .bytes = bytes, + }; + qemu_co_queue_init(&task->wait_queue); + QLIST_INSERT_HEAD(&s->tasks, task, list); + + return task; } /* - * block_copy_inflight_req_shrink + * block_copy_task_shrink * - * Drop the tail of the request to be handled later. Set dirty bits back and - * wake up all requests waiting for us (may be some of them are not intersecting - * with shrunk request) + * Drop the tail of the task to be handled later. Set dirty bits back and + * wake up all tasks waiting for us (may be some of them are not intersecting + * with shrunk task) */ -static void coroutine_fn block_copy_inflight_req_shrink(BlockCopyState *s, - BlockCopyInFlightReq *req, int64_t new_bytes) +static void coroutine_fn block_copy_task_shrink(BlockCopyTask *task, + int64_t new_bytes) { - if (new_bytes == req->bytes) { + if (new_bytes == task->bytes) { return; } - assert(new_bytes > 0 && new_bytes < req->bytes); + assert(new_bytes > 0 && new_bytes < task->bytes); - s->in_flight_bytes -= req->bytes - new_bytes; - bdrv_set_dirty_bitmap(s->copy_bitmap, - req->offset + new_bytes, req->bytes - new_bytes); + task->s->in_flight_bytes -= task->bytes - new_bytes; + bdrv_set_dirty_bitmap(task->s->copy_bitmap, + task->offset + new_bytes, task->bytes - new_bytes); - req->bytes = new_bytes; - qemu_co_queue_restart_all(&req->wait_queue); + task->bytes = new_bytes; + qemu_co_queue_restart_all(&task->wait_queue); } -static void coroutine_fn block_copy_inflight_req_end(BlockCopyState *s, - BlockCopyInFlightReq *req, - int ret) +static void coroutine_fn block_copy_task_end(BlockCopyTask *task, int ret) { - s->in_flight_bytes -= req->bytes; + task->s->in_flight_bytes -= task->bytes; if (ret < 0) { - bdrv_set_dirty_bitmap(s->copy_bitmap, req->offset, req->bytes); + bdrv_set_dirty_bitmap(task->s->copy_bitmap, task->offset, task->bytes); } - QLIST_REMOVE(req, list); - qemu_co_queue_restart_all(&req->wait_queue); + QLIST_REMOVE(task, list); + qemu_co_queue_restart_all(&task->wait_queue); } void block_copy_state_free(BlockCopyState *s) @@ -223,7 +261,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, s->copy_size = MAX(s->cluster_size, BLOCK_COPY_MAX_BUFFER); } - QLIST_INIT(&s->inflight_reqs); + QLIST_INIT(&s->tasks); return s; } @@ -243,6 +281,38 @@ void block_copy_set_progress_meter(BlockCopyState *s, ProgressMeter *pm) } /* + * Takes ownership of @task + * + * If pool is NULL directly run the task, otherwise schedule it into the pool. + * + * Returns: task.func return code if pool is NULL + * otherwise -ECANCELED if pool status is bad + * otherwise 0 (successfully scheduled) + */ +static coroutine_fn int block_copy_task_run(AioTaskPool *pool, + BlockCopyTask *task) +{ + if (!pool) { + int ret = task->task.func(&task->task); + + g_free(task); + return ret; + } + + aio_task_pool_wait_slot(pool); + if (aio_task_pool_status(pool) < 0) { + co_put_to_shres(task->s->mem, task->bytes); + block_copy_task_end(task, -ECANCELED); + g_free(task); + return -ECANCELED; + } + + aio_task_pool_start_task(pool, &task->task); + + return 0; +} + +/* * block_copy_do_copy * * Do copy of cluster-aligned chunk. Requested region is allowed to exceed @@ -345,6 +415,27 @@ out: return ret; } +static coroutine_fn int block_copy_task_entry(AioTask *task) +{ + BlockCopyTask *t = container_of(task, BlockCopyTask, task); + bool error_is_read; + int ret; + + ret = block_copy_do_copy(t->s, t->offset, t->bytes, t->zeroes, + &error_is_read); + if (ret < 0 && !t->call_state->failed) { + t->call_state->failed = true; + t->call_state->error_is_read = error_is_read; + } else { + progress_work_done(t->s->progress, t->bytes); + t->s->progress_bytes_callback(t->bytes, t->s->progress_opaque); + } + co_put_to_shres(t->s->mem, t->bytes); + block_copy_task_end(t, ret); + + return ret; +} + static int block_copy_block_status(BlockCopyState *s, int64_t offset, int64_t bytes, int64_t *pnum) { @@ -462,6 +553,9 @@ static int coroutine_fn block_copy_dirty_clusters(BlockCopyState *s, { int ret = 0; bool found_dirty = false; + int64_t end = offset + bytes; + AioTaskPool *aio = NULL; + BlockCopyCallState call_state = {false, false}; /* * block_copy() user is responsible for keeping source and target in same @@ -473,63 +567,78 @@ static int coroutine_fn block_copy_dirty_clusters(BlockCopyState *s, assert(QEMU_IS_ALIGNED(offset, s->cluster_size)); assert(QEMU_IS_ALIGNED(bytes, s->cluster_size)); - while (bytes) { - BlockCopyInFlightReq req; - int64_t next_zero, cur_bytes, status_bytes; + while (bytes && aio_task_pool_status(aio) == 0) { + BlockCopyTask *task; + int64_t status_bytes; - if (!bdrv_dirty_bitmap_get(s->copy_bitmap, offset)) { - trace_block_copy_skip(s, offset); - offset += s->cluster_size; - bytes -= s->cluster_size; - continue; /* already copied */ + task = block_copy_task_create(s, &call_state, offset, bytes); + if (!task) { + /* No more dirty bits in the bitmap */ + trace_block_copy_skip_range(s, offset, bytes); + break; + } + if (task->offset > offset) { + trace_block_copy_skip_range(s, offset, task->offset - offset); } found_dirty = true; - cur_bytes = MIN(bytes, s->copy_size); - - next_zero = bdrv_dirty_bitmap_next_zero(s->copy_bitmap, offset, - cur_bytes); - if (next_zero >= 0) { - assert(next_zero > offset); /* offset is dirty */ - assert(next_zero < offset + cur_bytes); /* no need to do MIN() */ - cur_bytes = next_zero - offset; - } - block_copy_inflight_req_begin(s, &req, offset, cur_bytes); - - ret = block_copy_block_status(s, offset, cur_bytes, &status_bytes); + ret = block_copy_block_status(s, task->offset, task->bytes, + &status_bytes); assert(ret >= 0); /* never fail */ - cur_bytes = MIN(cur_bytes, status_bytes); - block_copy_inflight_req_shrink(s, &req, cur_bytes); + if (status_bytes < task->bytes) { + block_copy_task_shrink(task, status_bytes); + } if (s->skip_unallocated && !(ret & BDRV_BLOCK_ALLOCATED)) { - block_copy_inflight_req_end(s, &req, 0); + block_copy_task_end(task, 0); + g_free(task); progress_set_remaining(s->progress, bdrv_get_dirty_count(s->copy_bitmap) + s->in_flight_bytes); - trace_block_copy_skip_range(s, offset, status_bytes); - offset += status_bytes; - bytes -= status_bytes; + trace_block_copy_skip_range(s, task->offset, task->bytes); + offset = task_end(task); + bytes = end - offset; continue; } + task->zeroes = ret & BDRV_BLOCK_ZERO; + + trace_block_copy_process(s, task->offset); - trace_block_copy_process(s, offset); + co_get_from_shres(s->mem, task->bytes); - co_get_from_shres(s->mem, cur_bytes); - ret = block_copy_do_copy(s, offset, cur_bytes, ret & BDRV_BLOCK_ZERO, - error_is_read); - co_put_to_shres(s->mem, cur_bytes); - block_copy_inflight_req_end(s, &req, ret); + offset = task_end(task); + bytes = end - offset; + + if (!aio && bytes) { + aio = aio_task_pool_new(BLOCK_COPY_MAX_WORKERS); + } + + ret = block_copy_task_run(aio, task); if (ret < 0) { - return ret; + goto out; } + } + +out: + if (aio) { + aio_task_pool_wait_all(aio); - progress_work_done(s->progress, cur_bytes); - s->progress_bytes_callback(cur_bytes, s->progress_opaque); - offset += cur_bytes; - bytes -= cur_bytes; + /* + * We are not really interested in -ECANCELED returned from + * block_copy_task_run. If it fails, it means some task already failed + * for real reason, let's return first failure. + * Still, assert that we don't rewrite failure by success. + */ + assert(ret == 0 || aio_task_pool_status(aio) < 0); + ret = aio_task_pool_status(aio); + + aio_task_pool_free(aio); + } + if (error_is_read && ret < 0) { + *error_is_read = call_state.error_is_read; } - return found_dirty; + return ret < 0 ? ret : found_dirty; } /* diff --git a/block/crypto.c b/block/crypto.c index e02f343..ca44dae 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -261,11 +261,10 @@ static int block_crypto_co_create_generic(BlockDriverState *bs, QCryptoBlock *crypto = NULL; struct BlockCryptoCreateData data; - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto cleanup; } @@ -960,7 +960,7 @@ int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset, * flags are passed through to bdrv_pwrite_zeroes (e.g. BDRV_REQ_MAY_UNMAP, * BDRV_REQ_FUA). * - * Returns < 0 on error, 0 on success. For error codes see bdrv_write(). + * Returns < 0 on error, 0 on success. For error codes see bdrv_pwrite(). */ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags) { @@ -994,6 +994,7 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags) } } +/* return < 0 if error. See bdrv_pwrite() for the return codes */ int bdrv_preadv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov) { int ret; diff --git a/block/parallels.c b/block/parallels.c index 2be92cf..8db64a5 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -559,10 +559,10 @@ static int coroutine_fn parallels_co_create(BlockdevCreateOptions* opts, return -EIO; } - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto out; } blk_set_allow_write_beyond_eof(blk, true); diff --git a/block/qcow.c b/block/qcow.c index 6b5f226..b0475b7 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -849,10 +849,10 @@ static int coroutine_fn qcow_co_create(BlockdevCreateOptions *opts, return -EIO; } - qcow_blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(qcow_blk, bs, errp); - if (ret < 0) { + qcow_blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, + BLK_PERM_ALL, errp); + if (!qcow_blk) { + ret = -EPERM; goto exit; } blk_set_allow_write_beyond_eof(qcow_blk, true); diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index d9650b9..0457a60 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -2660,7 +2660,7 @@ fail: * - 0 if writing to this offset will not affect the mentioned metadata * - a positive QCow2MetadataOverlap value indicating one overlapping section * - a negative value (-errno) indicating an error while performing a check, - * e.g. when bdrv_read failed on QCOW2_OL_INACTIVE_L2 + * e.g. when bdrv_pread failed on QCOW2_OL_INACTIVE_L2 */ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset, int64_t size) diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index 82c32d4..2756b37 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -23,6 +23,7 @@ */ #include "qemu/osdep.h" +#include "sysemu/block-backend.h" #include "qapi/error.h" #include "qcow2.h" #include "qemu/bswap.h" @@ -775,10 +776,21 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id) } if (sn->disk_size != bs->total_sectors * BDRV_SECTOR_SIZE) { - error_report("qcow2: Loading snapshots with different disk " - "size is not implemented"); - ret = -ENOTSUP; - goto fail; + BlockBackend *blk = blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, + &local_err); + if (!blk) { + error_report_err(local_err); + ret = -ENOTSUP; + goto fail; + } + + ret = blk_truncate(blk, sn->disk_size, true, PREALLOC_MODE_OFF, 0, + &local_err); + blk_unref(blk); + if (ret < 0) { + error_report_err(local_err); + goto fail; + } } /* diff --git a/block/qcow2.c b/block/qcow2.c index 2ba0b17..ad93410 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -3405,10 +3405,10 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp) } /* Create BlockBackend to write to the image */ - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto out; } blk_set_allow_write_beyond_eof(blk, true); @@ -3989,14 +3989,17 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset, qemu_co_mutex_lock(&s->lock); - /* cannot proceed if image has snapshots */ - if (s->nb_snapshots) { - error_setg(errp, "Can't resize an image which has snapshots"); + /* + * Even though we store snapshot size for all images, it was not + * required until v3, so it is not safe to proceed for v2. + */ + if (s->nb_snapshots && s->qcow_version < 3) { + error_setg(errp, "Can't resize a v2 image which has snapshots"); ret = -ENOTSUP; goto fail; } - /* cannot proceed if image has bitmaps */ + /* See qcow2-bitmap.c for which bitmap scenarios prevent a resize. */ if (qcow2_truncate_bitmaps_check(bs, errp)) { ret = -ENOTSUP; goto fail; @@ -5005,6 +5008,7 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, BDRVQcow2State *s = bs->opaque; int current_version = s->qcow_version; int ret; + int i; /* This is qcow2_downgrade(), not qcow2_upgrade() */ assert(target_version < current_version); @@ -5022,6 +5026,21 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, return -ENOTSUP; } + /* + * If any internal snapshot has a different size than the current + * image size, or VM state size that exceeds 32 bits, downgrading + * is unsafe. Even though we would still use v3-compliant output + * to preserve that data, other v2 programs might not realize + * those optional fields are important. + */ + for (i = 0; i < s->nb_snapshots; i++) { + if (s->snapshots[i].vm_state_size > UINT32_MAX || + s->snapshots[i].disk_size != bs->total_sectors * BDRV_SECTOR_SIZE) { + error_setg(errp, "Internal snapshots prevent downgrade of image"); + return -ENOTSUP; + } + } + /* clear incompatible features */ if (s->incompatible_features & QCOW2_INCOMPAT_DIRTY) { ret = qcow2_mark_clean(bs); @@ -5412,12 +5431,10 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, } if (new_size) { - BlockBackend *blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { - blk_unref(blk); - return ret; + BlockBackend *blk = blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + return -EPERM; } /* diff --git a/block/qed.c b/block/qed.c index b0fdb8f..fb609cf 100644 --- a/block/qed.c +++ b/block/qed.c @@ -651,10 +651,10 @@ static int coroutine_fn bdrv_qed_co_create(BlockdevCreateOptions *opts, return -EIO; } - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto out; } blk_set_allow_write_beyond_eof(blk, true); diff --git a/block/sheepdog.c b/block/sheepdog.c index 76729f4..2eb6193 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -1803,12 +1803,12 @@ static int sd_prealloc(BlockDriverState *bs, int64_t old_size, int64_t new_size, void *buf = NULL; int ret; - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE | BLK_PERM_RESIZE, - BLK_PERM_ALL); + blk = blk_new_with_bs(bs, + BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE | BLK_PERM_RESIZE, + BLK_PERM_ALL, errp); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + if (!blk) { + ret = -EPERM; goto out_with_err_set; } diff --git a/block/vdi.c b/block/vdi.c index 0c7835a..2d28046 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -804,10 +804,10 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options, goto exit; } - blk = blk_new(bdrv_get_aio_context(bs_file), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs_file, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs_file, BLK_PERM_WRITE | BLK_PERM_RESIZE, + BLK_PERM_ALL, errp); + if (!blk) { + ret = -EPERM; goto exit; } diff --git a/block/vhdx.c b/block/vhdx.c index aedd782..e11fb74 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1983,10 +1983,10 @@ static int coroutine_fn vhdx_co_create(BlockdevCreateOptions *opts, return -EIO; } - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto delete_and_exit; } blk_set_allow_write_beyond_eof(blk, true); diff --git a/block/vmdk.c b/block/vmdk.c index 8ec18f3..b02fdd1 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -2717,11 +2717,10 @@ static BlockBackend *vmdk_co_create_cb(int64_t size, int idx, if (!bs) { return NULL; } - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE | BLK_PERM_RESIZE, - BLK_PERM_ALL); - if (blk_insert_bs(blk, bs, errp)) { - bdrv_unref(bs); + blk = blk_new_with_bs(bs, + BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE | BLK_PERM_RESIZE, + BLK_PERM_ALL, errp); + if (!blk) { return NULL; } blk_set_allow_write_beyond_eof(blk, true); diff --git a/block/vpc.c b/block/vpc.c index 2d1eade..5e31dd1 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -1012,10 +1012,10 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts, return -EIO; } - blk = blk_new(bdrv_get_aio_context(bs), - BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL, + errp); + if (!blk) { + ret = -EPERM; goto out; } blk_set_allow_write_beyond_eof(blk, true); diff --git a/block/vvfat.c b/block/vvfat.c index ab800c4..6d5c090 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -2148,7 +2148,7 @@ DLOG(checkpoint()); * - get modified FAT * - compare the two FATs (TODO) * - get buffer for marking used clusters - * - recurse direntries from root (using bs->bdrv_read to make + * - recurse direntries from root (using bs->bdrv_pread to make * sure to get the new data) * - check that the FAT agrees with the size * - count the number of clusters occupied by this directory and @@ -2913,9 +2913,9 @@ static int handle_deletes(BDRVVVFATState* s) /* * synchronize mapping with new state: * - * - copy FAT (with bdrv_read) + * - copy FAT (with bdrv_pread) * - mark all filenames corresponding to mappings as deleted - * - recurse direntries from root (using bs->bdrv_read) + * - recurse direntries from root (using bs->bdrv_pread) * - delete files corresponding to mappings marked as deleted */ static int do_commit(BDRVVVFATState* s) @@ -2935,10 +2935,10 @@ static int do_commit(BDRVVVFATState* s) return ret; } - /* copy FAT (with bdrv_read) */ + /* copy FAT (with bdrv_pread) */ memcpy(s->fat.pointer, s->fat2, 0x200 * s->sectors_per_fat); - /* recurse direntries from root (using bs->bdrv_read) */ + /* recurse direntries from root (using bs->bdrv_pread) */ ret = commit_direntries(s, 0, -1); if (ret) { fprintf(stderr, "Fatal: error while committing (%d)\n", ret); @@ -2711,7 +2711,6 @@ void qmp_block_resize(bool has_device, const char *device, BlockBackend *blk = NULL; BlockDriverState *bs; AioContext *aio_context; - int ret; bs = bdrv_lookup_bs(has_device ? device : NULL, has_node_name ? node_name : NULL, @@ -2734,9 +2733,8 @@ void qmp_block_resize(bool has_device, const char *device, goto out; } - blk = blk_new(bdrv_get_aio_context(bs), BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { + blk = blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp); + if (!blk) { goto out; } @@ -397,16 +397,13 @@ void *block_job_create(const char *job_id, const BlockJobDriver *driver, { BlockBackend *blk; BlockJob *job; - int ret; if (job_id == NULL && !(flags & JOB_INTERNAL)) { job_id = bdrv_get_device_name(bs); } - blk = blk_new(bdrv_get_aio_context(bs), perm, shared_perm); - ret = blk_insert_bs(blk, bs, errp); - if (ret < 0) { - blk_unref(blk); + blk = blk_new_with_bs(bs, perm, shared_perm, errp); + if (!blk) { return NULL; } diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 34de7fa..0917663 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -77,6 +77,8 @@ typedef struct BlockBackendPublic { } BlockBackendPublic; BlockBackend *blk_new(AioContext *ctx, uint64_t perm, uint64_t shared_perm); +BlockBackend *blk_new_with_bs(BlockDriverState *bs, uint64_t perm, + uint64_t shared_perm, Error **errp); BlockBackend *blk_new_open(const char *filename, const char *reference, QDict *options, int flags, Error **errp); int blk_get_refcnt(BlockBackend *blk); diff --git a/tests/qemu-iotests/001 b/tests/qemu-iotests/001 index d87a535..696726e 100755 --- a/tests/qemu-iotests/001 +++ b/tests/qemu-iotests/001 @@ -1,6 +1,6 @@ #!/usr/bin/env bash # -# Test simple read/write using plain bdrv_read/bdrv_write +# Test simple read/write using plain bdrv_pread/bdrv_pwrite # # Copyright (C) 2009 Red Hat, Inc. # diff --git a/tests/qemu-iotests/030 b/tests/qemu-iotests/030 index aa911d2..104e3ce 100755 --- a/tests/qemu-iotests/030 +++ b/tests/qemu-iotests/030 @@ -411,8 +411,8 @@ class TestParallelOps(iotests.QMPTestCase): result = self.vm.qmp('block-job-set-speed', device='drive0', speed=0) self.assert_qmp(result, 'return', {}) - self.vm.run_job(job='drive0', auto_dismiss=True, use_log=False) - self.vm.run_job(job='node4', auto_dismiss=True, use_log=False) + self.vm.run_job(job='drive0', auto_dismiss=True) + self.vm.run_job(job='node4', auto_dismiss=True) self.assert_no_active_block_jobs() # Test a block-stream and a block-commit job in parallel diff --git a/tests/qemu-iotests/052 b/tests/qemu-iotests/052 index 45a1409..8d5c106 100755 --- a/tests/qemu-iotests/052 +++ b/tests/qemu-iotests/052 @@ -1,6 +1,6 @@ #!/usr/bin/env bash # -# Test bdrv_read/bdrv_write using BDRV_O_SNAPSHOT +# Test bdrv_pread/bdrv_pwrite using BDRV_O_SNAPSHOT # # Copyright (C) 2013 Red Hat, Inc. # diff --git a/tests/qemu-iotests/055 b/tests/qemu-iotests/055 index 82b9f5f..4175fff 100755 --- a/tests/qemu-iotests/055 +++ b/tests/qemu-iotests/055 @@ -469,7 +469,8 @@ class TestDriveCompression(iotests.QMPTestCase): qemu_img('create', '-f', fmt, blockdev_target_img, str(TestDriveCompression.image_len), *args) if attach_target: - self.vm.add_drive(blockdev_target_img, format=fmt, interface="none") + self.vm.add_drive(blockdev_target_img, + img_format=fmt, interface="none") self.vm.launch() diff --git a/tests/qemu-iotests/061 b/tests/qemu-iotests/061 index ce285d3..10eb243 100755 --- a/tests/qemu-iotests/061 +++ b/tests/qemu-iotests/061 @@ -112,6 +112,41 @@ $QEMU_IO -c "read -P 0x2a 42M 64k" "$TEST_IMG" | _filter_qemu_io _check_test_img echo +echo "=== Testing resize with snapshots ===" +echo +_make_test_img -o "compat=0.10" 32M +$QEMU_IO -c "write -P 0x2a 24M 64k" "$TEST_IMG" | _filter_qemu_io +$QEMU_IMG snapshot -c foo "$TEST_IMG" +$QEMU_IMG resize "$TEST_IMG" 64M && + echo "unexpected pass" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +$QEMU_IMG amend -o "compat=1.1,size=128M" "$TEST_IMG" || + echo "unexpected fail" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +$QEMU_IMG snapshot -c bar "$TEST_IMG" +$QEMU_IMG resize --shrink "$TEST_IMG" 64M || + echo "unexpected fail" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +$QEMU_IMG amend -o "compat=0.10,size=32M" "$TEST_IMG" && + echo "unexpected pass" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +$QEMU_IMG snapshot -a bar "$TEST_IMG" || + echo "unexpected fail" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +$QEMU_IMG snapshot -d bar "$TEST_IMG" +$QEMU_IMG amend -o "compat=0.10,size=32M" "$TEST_IMG" || + echo "unexpected fail" +$PYTHON qcow2.py "$TEST_IMG" dump-header | grep '^\(version\|size\|nb_snap\)' + +_check_test_img + + +echo echo "=== Testing dirty lazy_refcounts=off ===" echo _make_test_img -o "compat=1.1,lazy_refcounts=on" 64M diff --git a/tests/qemu-iotests/061.out b/tests/qemu-iotests/061.out index 413cc4e..5a8d36d 100644 --- a/tests/qemu-iotests/061.out +++ b/tests/qemu-iotests/061.out @@ -271,6 +271,34 @@ read 65536/65536 bytes at offset 44040192 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) No errors were found on the image. +=== Testing resize with snapshots === + +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 +wrote 65536/65536 bytes at offset 25165824 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +qemu-img: Can't resize a v2 image which has snapshots +version 2 +size 33554432 +nb_snapshots 1 +version 3 +size 134217728 +nb_snapshots 1 +Image resized. +version 3 +size 67108864 +nb_snapshots 2 +qemu-img: Internal snapshots prevent downgrade of image +version 3 +size 33554432 +nb_snapshots 2 +version 3 +size 134217728 +nb_snapshots 2 +version 2 +size 33554432 +nb_snapshots 1 +No errors were found on the image. + === Testing dirty lazy_refcounts=off === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 diff --git a/tests/qemu-iotests/134 b/tests/qemu-iotests/134 index 5f0fb86..5162d21 100755 --- a/tests/qemu-iotests/134 +++ b/tests/qemu-iotests/134 @@ -1,6 +1,6 @@ #!/usr/bin/env bash # -# Test encrypted read/write using plain bdrv_read/bdrv_write +# Test encrypted read/write using plain bdrv_pread/bdrv_pwrite # # Copyright (C) 2015 Red Hat, Inc. # diff --git a/tests/qemu-iotests/149 b/tests/qemu-iotests/149 index b4a21bf..852768f 100755 --- a/tests/qemu-iotests/149 +++ b/tests/qemu-iotests/149 @@ -382,8 +382,7 @@ def test_once(config, qemu_img=False): # Obviously we only work with the luks image format -iotests.verify_image_format(supported_fmts=['luks']) -iotests.verify_platform() +iotests.script_initialize(supported_fmts=['luks']) # We need sudo in order to run cryptsetup to create # dm-crypt devices. This is safe to use on any diff --git a/tests/qemu-iotests/153 b/tests/qemu-iotests/153 index 2b13111..cf961d3 100755 --- a/tests/qemu-iotests/153 +++ b/tests/qemu-iotests/153 @@ -122,7 +122,7 @@ for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do _run_cmd $QEMU_IMG check $L "${TEST_IMG}" _run_cmd $QEMU_IMG compare $L "${TEST_IMG}" "${TEST_IMG}" _run_cmd $QEMU_IMG map $L "${TEST_IMG}" - _run_cmd $QEMU_IMG amend -o "" $L "${TEST_IMG}" + _run_cmd $QEMU_IMG amend -o "size=$size" $L "${TEST_IMG}" _run_cmd $QEMU_IMG commit $L "${TEST_IMG}" _run_cmd $QEMU_IMG resize $L "${TEST_IMG}" $size _run_cmd $QEMU_IMG rebase $L "${TEST_IMG}" -b "${TEST_IMG}.base" diff --git a/tests/qemu-iotests/153.out b/tests/qemu-iotests/153.out index f7464dd..b2a90ca 100644 --- a/tests/qemu-iotests/153.out +++ b/tests/qemu-iotests/153.out @@ -56,7 +56,7 @@ _qemu_img_wrapper map TEST_DIR/t.qcow2 qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get shared "write" lock Is another process using the image [TEST_DIR/t.qcow2]? -_qemu_img_wrapper amend -o TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2 qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock Is another process using the image [TEST_DIR/t.qcow2]? @@ -118,7 +118,7 @@ _qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2 _qemu_img_wrapper map -U TEST_DIR/t.qcow2 -_qemu_img_wrapper amend -o -U TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2 qemu-img: unrecognized option '-U' Try 'qemu-img --help' for more information @@ -187,7 +187,7 @@ _qemu_img_wrapper compare TEST_DIR/t.qcow2 TEST_DIR/t.qcow2 _qemu_img_wrapper map TEST_DIR/t.qcow2 -_qemu_img_wrapper amend -o TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2 qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock Is another process using the image [TEST_DIR/t.qcow2]? @@ -241,7 +241,7 @@ _qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2 _qemu_img_wrapper map -U TEST_DIR/t.qcow2 -_qemu_img_wrapper amend -o -U TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2 qemu-img: unrecognized option '-U' Try 'qemu-img --help' for more information @@ -303,7 +303,7 @@ _qemu_img_wrapper compare TEST_DIR/t.qcow2 TEST_DIR/t.qcow2 _qemu_img_wrapper map TEST_DIR/t.qcow2 -_qemu_img_wrapper amend -o TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M TEST_DIR/t.qcow2 _qemu_img_wrapper commit TEST_DIR/t.qcow2 @@ -345,7 +345,7 @@ _qemu_img_wrapper compare -U TEST_DIR/t.qcow2 TEST_DIR/t.qcow2 _qemu_img_wrapper map -U TEST_DIR/t.qcow2 -_qemu_img_wrapper amend -o -U TEST_DIR/t.qcow2 +_qemu_img_wrapper amend -o size=32M -U TEST_DIR/t.qcow2 qemu-img: unrecognized option '-U' Try 'qemu-img --help' for more information diff --git a/tests/qemu-iotests/155 b/tests/qemu-iotests/155 index 571bce9..cb371d4 100755 --- a/tests/qemu-iotests/155 +++ b/tests/qemu-iotests/155 @@ -188,7 +188,7 @@ class MirrorBaseClass(BaseClass): self.assert_qmp(result, 'return', {}) - self.vm.run_job('mirror-job', use_log=False, auto_finalize=False, + self.vm.run_job('mirror-job', auto_finalize=False, pre_finalize=self.openBacking, auto_dismiss=True) def testFull(self): diff --git a/tests/qemu-iotests/188 b/tests/qemu-iotests/188 index afca44d..09b9b60 100755 --- a/tests/qemu-iotests/188 +++ b/tests/qemu-iotests/188 @@ -1,6 +1,6 @@ #!/usr/bin/env bash # -# Test encrypted read/write using plain bdrv_read/bdrv_write +# Test encrypted read/write using plain bdrv_pread/bdrv_pwrite # # Copyright (C) 2017 Red Hat, Inc. # diff --git a/tests/qemu-iotests/194 b/tests/qemu-iotests/194 index 9dc1bd3..8b1f720 100755 --- a/tests/qemu-iotests/194 +++ b/tests/qemu-iotests/194 @@ -21,8 +21,8 @@ import iotests -iotests.verify_image_format(supported_fmts=['qcow2', 'qed', 'raw']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2', 'qed', 'raw'], + supported_platforms=['linux']) with iotests.FilePath('source.img') as source_img_path, \ iotests.FilePath('dest.img') as dest_img_path, \ diff --git a/tests/qemu-iotests/202 b/tests/qemu-iotests/202 index 920a868..e3900a4 100755 --- a/tests/qemu-iotests/202 +++ b/tests/qemu-iotests/202 @@ -24,8 +24,8 @@ import iotests -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2'], + supported_platforms=['linux']) with iotests.FilePath('disk0.img') as disk0_img_path, \ iotests.FilePath('disk1.img') as disk1_img_path, \ diff --git a/tests/qemu-iotests/203 b/tests/qemu-iotests/203 index 49eff5d..4b4bd33 100755 --- a/tests/qemu-iotests/203 +++ b/tests/qemu-iotests/203 @@ -24,8 +24,8 @@ import iotests -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2'], + supported_platforms=['linux']) with iotests.FilePath('disk0.img') as disk0_img_path, \ iotests.FilePath('disk1.img') as disk1_img_path, \ diff --git a/tests/qemu-iotests/206 b/tests/qemu-iotests/206 index e2b50ae2..f42432a 100755 --- a/tests/qemu-iotests/206 +++ b/tests/qemu-iotests/206 @@ -23,7 +23,7 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) with iotests.FilePath('t.qcow2') as disk_path, \ iotests.FilePath('t.qcow2.base') as backing_path, \ diff --git a/tests/qemu-iotests/207 b/tests/qemu-iotests/207 index 3d9c120..a662141 100755 --- a/tests/qemu-iotests/207 +++ b/tests/qemu-iotests/207 @@ -24,8 +24,10 @@ import iotests import subprocess import re -iotests.verify_image_format(supported_fmts=['raw']) -iotests.verify_protocol(supported=['ssh']) +iotests.script_initialize( + supported_fmts=['raw'], + supported_protocols=['ssh'], +) def filter_hash(qmsg): def _filter(key, value): diff --git a/tests/qemu-iotests/208 b/tests/qemu-iotests/208 index 1c3fc8c..6cb642f 100755 --- a/tests/qemu-iotests/208 +++ b/tests/qemu-iotests/208 @@ -22,7 +22,7 @@ import iotests -iotests.verify_image_format(supported_fmts=['generic']) +iotests.script_initialize(supported_fmts=['generic']) with iotests.FilePath('disk.img') as disk_img_path, \ iotests.FilePath('disk-snapshot.img') as disk_snapshot_img_path, \ diff --git a/tests/qemu-iotests/209 b/tests/qemu-iotests/209 index 65c1a1e..8c804f4 100755 --- a/tests/qemu-iotests/209 +++ b/tests/qemu-iotests/209 @@ -22,7 +22,7 @@ import iotests from iotests import qemu_img_create, qemu_io, qemu_img_verbose, qemu_nbd, \ file_path -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) disk = file_path('disk') nbd_sock = file_path('nbd-sock', base_dir=iotests.sock_dir) diff --git a/tests/qemu-iotests/210 b/tests/qemu-iotests/210 index e49896e..7bf591f 100755 --- a/tests/qemu-iotests/210 +++ b/tests/qemu-iotests/210 @@ -23,8 +23,10 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['luks']) -iotests.verify_protocol(supported=['file']) +iotests.script_initialize( + supported_fmts=['luks'], + supported_protocols=['file'], +) with iotests.FilePath('t.luks') as disk_path, \ iotests.VM() as vm: diff --git a/tests/qemu-iotests/211 b/tests/qemu-iotests/211 index 163994d..4969edb 100755 --- a/tests/qemu-iotests/211 +++ b/tests/qemu-iotests/211 @@ -23,8 +23,10 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['vdi']) -iotests.verify_protocol(supported=['file']) +iotests.script_initialize( + supported_fmts=['vdi'], + supported_protocols=['file'], +) def blockdev_create(vm, options): error = vm.blockdev_create(options) diff --git a/tests/qemu-iotests/212 b/tests/qemu-iotests/212 index 800f92d..45d0884 100755 --- a/tests/qemu-iotests/212 +++ b/tests/qemu-iotests/212 @@ -23,8 +23,10 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['parallels']) -iotests.verify_protocol(supported=['file']) +iotests.script_initialize( + supported_fmts=['parallels'], + supported_protocols=['file'], +) with iotests.FilePath('t.parallels') as disk_path, \ iotests.VM() as vm: diff --git a/tests/qemu-iotests/213 b/tests/qemu-iotests/213 index 1eee452..cf638eb 100755 --- a/tests/qemu-iotests/213 +++ b/tests/qemu-iotests/213 @@ -23,8 +23,10 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['vhdx']) -iotests.verify_protocol(supported=['file']) +iotests.script_initialize( + supported_fmts=['vhdx'], + supported_protocols=['file'], +) with iotests.FilePath('t.vhdx') as disk_path, \ iotests.VM() as vm: diff --git a/tests/qemu-iotests/216 b/tests/qemu-iotests/216 index 372f042..de11d85 100755 --- a/tests/qemu-iotests/216 +++ b/tests/qemu-iotests/216 @@ -23,8 +23,8 @@ import iotests from iotests import log, qemu_img, qemu_io_silent # Need backing file support -iotests.verify_image_format(supported_fmts=['qcow2', 'qcow', 'qed', 'vmdk']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2', 'qcow', 'qed', 'vmdk'], + supported_platforms=['linux']) log('') log('=== Copy-on-read across nodes ===') diff --git a/tests/qemu-iotests/218 b/tests/qemu-iotests/218 index 1325ba9..5586870 100755 --- a/tests/qemu-iotests/218 +++ b/tests/qemu-iotests/218 @@ -29,7 +29,7 @@ import iotests from iotests import log, qemu_img, qemu_io_silent -iotests.verify_image_format(supported_fmts=['qcow2', 'raw']) +iotests.script_initialize(supported_fmts=['qcow2', 'raw']) # Launches the VM, adds two null-co nodes (source and target), and diff --git a/tests/qemu-iotests/219 b/tests/qemu-iotests/219 index b877477..db272c5 100755 --- a/tests/qemu-iotests/219 +++ b/tests/qemu-iotests/219 @@ -21,7 +21,7 @@ import iotests -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) img_size = 4 * 1024 * 1024 diff --git a/tests/qemu-iotests/222 b/tests/qemu-iotests/222 index bf1718e..6602f6b 100755 --- a/tests/qemu-iotests/222 +++ b/tests/qemu-iotests/222 @@ -24,9 +24,10 @@ import iotests from iotests import log, qemu_img, qemu_io, qemu_io_silent -iotests.verify_platform(['linux']) -iotests.verify_image_format(supported_fmts=['qcow2', 'qcow', 'qed', 'vmdk', - 'vhdx', 'raw']) +iotests.script_initialize( + supported_fmts=['qcow2', 'qcow', 'qed', 'vmdk', 'vhdx', 'raw'], + supported_platforms=['linux'], +) patterns = [("0x5d", "0", "64k"), ("0xd5", "1M", "64k"), diff --git a/tests/qemu-iotests/224 b/tests/qemu-iotests/224 index e91fb26..81ca1e4 100755 --- a/tests/qemu-iotests/224 +++ b/tests/qemu-iotests/224 @@ -26,8 +26,8 @@ from iotests import log, qemu_img, qemu_io_silent, filter_qmp_testfiles, \ import json # Need backing file support (for arbitrary backing formats) -iotests.verify_image_format(supported_fmts=['qcow2', 'qcow', 'qed']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2', 'qcow', 'qed'], + supported_platforms=['linux']) # There are two variations of this test: diff --git a/tests/qemu-iotests/228 b/tests/qemu-iotests/228 index 64bc82e..da0900f 100755 --- a/tests/qemu-iotests/228 +++ b/tests/qemu-iotests/228 @@ -25,8 +25,10 @@ from iotests import log, qemu_img, filter_testfiles, filter_imgfmt, \ filter_qmp_testfiles, filter_qmp_imgfmt # Need backing file and change-backing-file support -iotests.verify_image_format(supported_fmts=['qcow2', 'qed']) -iotests.verify_platform(['linux']) +iotests.script_initialize( + supported_fmts=['qcow2', 'qed'], + supported_platforms=['linux'], +) def log_node_info(node): diff --git a/tests/qemu-iotests/234 b/tests/qemu-iotests/234 index 324c154..73c899d 100755 --- a/tests/qemu-iotests/234 +++ b/tests/qemu-iotests/234 @@ -23,8 +23,8 @@ import iotests import os -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2'], + supported_platforms=['linux']) with iotests.FilePath('img') as img_path, \ iotests.FilePath('backing') as backing_path, \ diff --git a/tests/qemu-iotests/235 b/tests/qemu-iotests/235 index 7608261..d1b10ac 100755 --- a/tests/qemu-iotests/235 +++ b/tests/qemu-iotests/235 @@ -27,6 +27,8 @@ sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python')) from qemu.machine import QEMUMachine +iotests.script_initialize(supported_fmts=['qcow2']) + # Note: # This test was added to check that mirror dead-lock was fixed (see previous # commit before this test addition). @@ -40,8 +42,6 @@ from qemu.machine import QEMUMachine size = 1 * 1024 * 1024 * 1024 -iotests.verify_image_format(supported_fmts=['qcow2']) - disk = file_path('disk') # prepare source image diff --git a/tests/qemu-iotests/236 b/tests/qemu-iotests/236 index 8ce927a..6f5cee2 100755 --- a/tests/qemu-iotests/236 +++ b/tests/qemu-iotests/236 @@ -22,7 +22,7 @@ import iotests from iotests import log -iotests.verify_image_format(supported_fmts=['generic']) +iotests.script_initialize(supported_fmts=['generic']) size = 64 * 1024 * 1024 granularity = 64 * 1024 diff --git a/tests/qemu-iotests/237 b/tests/qemu-iotests/237 index 50ba364..5b21ad3 100755 --- a/tests/qemu-iotests/237 +++ b/tests/qemu-iotests/237 @@ -24,7 +24,7 @@ import math import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['vmdk']) +iotests.script_initialize(supported_fmts=['vmdk']) with iotests.FilePath('t.vmdk') as disk_path, \ iotests.FilePath('t.vmdk.1') as extent1_path, \ diff --git a/tests/qemu-iotests/238 b/tests/qemu-iotests/238 index d4e0602..b8fcf15 100755 --- a/tests/qemu-iotests/238 +++ b/tests/qemu-iotests/238 @@ -23,6 +23,8 @@ import os import iotests from iotests import log +iotests.script_initialize() + virtio_scsi_device = iotests.get_virtio_scsi_device() vm = iotests.VM() diff --git a/tests/qemu-iotests/242 b/tests/qemu-iotests/242 index 9761787..64f1bd9 100755 --- a/tests/qemu-iotests/242 +++ b/tests/qemu-iotests/242 @@ -24,7 +24,7 @@ import struct from iotests import qemu_img_create, qemu_io, qemu_img_pipe, \ file_path, img_info_log, log, filter_qemu_io -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) disk = file_path('disk') chunk = 256 * 1024 diff --git a/tests/qemu-iotests/245 b/tests/qemu-iotests/245 index 1001275..4f5f0bb 100755 --- a/tests/qemu-iotests/245 +++ b/tests/qemu-iotests/245 @@ -1027,5 +1027,6 @@ class TestBlockdevReopen(iotests.QMPTestCase): self.run_test_iothreads(None, 'iothread0') if __name__ == '__main__': + iotests.activate_logging() iotests.main(supported_fmts=["qcow2"], supported_protocols=["file"]) diff --git a/tests/qemu-iotests/245.out b/tests/qemu-iotests/245.out index 682b933..4b33dca 100644 --- a/tests/qemu-iotests/245.out +++ b/tests/qemu-iotests/245.out @@ -1,8 +1,3 @@ -..................... ----------------------------------------------------------------------- -Ran 21 tests - -OK {"execute": "job-finalize", "arguments": {"id": "commit0"}} {"return": {}} {"data": {"id": "commit0", "type": "commit"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} @@ -15,3 +10,8 @@ OK {"return": {}} {"data": {"id": "stream0", "type": "stream"}, "event": "BLOCK_JOB_PENDING", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} {"data": {"device": "stream0", "len": 3145728, "offset": 3145728, "speed": 0, "type": "stream"}, "event": "BLOCK_JOB_COMPLETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}} +..................... +---------------------------------------------------------------------- +Ran 21 tests + +OK diff --git a/tests/qemu-iotests/246 b/tests/qemu-iotests/246 index 59a216a..58a479c 100755 --- a/tests/qemu-iotests/246 +++ b/tests/qemu-iotests/246 @@ -22,7 +22,7 @@ import iotests from iotests import log -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) size = 64 * 1024 * 1024 * 1024 gran_small = 32 * 1024 gran_large = 128 * 1024 diff --git a/tests/qemu-iotests/248 b/tests/qemu-iotests/248 index 68c3746..18ba034 100755 --- a/tests/qemu-iotests/248 +++ b/tests/qemu-iotests/248 @@ -21,7 +21,7 @@ import iotests from iotests import qemu_img_create, qemu_io, file_path, filter_qmp_testfiles -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) source, target = file_path('source', 'target') size = 5 * 1024 * 1024 diff --git a/tests/qemu-iotests/254 b/tests/qemu-iotests/254 index ee66c98..150e58b 100755 --- a/tests/qemu-iotests/254 +++ b/tests/qemu-iotests/254 @@ -21,7 +21,7 @@ import iotests from iotests import qemu_img_create, file_path, log -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) disk, top = file_path('disk', 'top') size = 1024 * 1024 diff --git a/tests/qemu-iotests/255 b/tests/qemu-iotests/255 index 4a4818b..8f08f74 100755 --- a/tests/qemu-iotests/255 +++ b/tests/qemu-iotests/255 @@ -23,7 +23,7 @@ import iotests from iotests import imgfmt -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) iotests.log('Finishing a commit job with background reads') iotests.log('============================================') diff --git a/tests/qemu-iotests/256 b/tests/qemu-iotests/256 index e34074c..db8d6f3 100755 --- a/tests/qemu-iotests/256 +++ b/tests/qemu-iotests/256 @@ -23,7 +23,7 @@ import os import iotests from iotests import log -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize(supported_fmts=['qcow2']) size = 64 * 1024 * 1024 with iotests.FilePath('img0') as img0_path, \ diff --git a/tests/qemu-iotests/258 b/tests/qemu-iotests/258 index 091755a..e305a15 100755 --- a/tests/qemu-iotests/258 +++ b/tests/qemu-iotests/258 @@ -23,11 +23,6 @@ import iotests from iotests import log, qemu_img, qemu_io_silent, \ filter_qmp_testfiles, filter_qmp_imgfmt -# Need backing file and change-backing-file support -iotests.verify_image_format(supported_fmts=['qcow2', 'qed']) -iotests.verify_platform(['linux']) - - # Returns a node for blockdev-add def node(node_name, path, backing=None, fmt=None, throttle=None): if fmt is None: @@ -160,4 +155,7 @@ def main(): test_concurrent_finish(False) if __name__ == '__main__': - main() + # Need backing file and change-backing-file support + iotests.script_main(main, + supported_fmts=['qcow2', 'qed'], + supported_platforms=['linux']) diff --git a/tests/qemu-iotests/260 b/tests/qemu-iotests/260 index 30c0de3..804a7ad 100755 --- a/tests/qemu-iotests/260 +++ b/tests/qemu-iotests/260 @@ -21,7 +21,9 @@ import iotests from iotests import qemu_img_create, file_path, log, filter_qmp_event -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize( + supported_fmts=['qcow2'] +) base, top = file_path('base', 'top') size = 64 * 1024 * 3 diff --git a/tests/qemu-iotests/262 b/tests/qemu-iotests/262 index 8835dce..03af061 100755 --- a/tests/qemu-iotests/262 +++ b/tests/qemu-iotests/262 @@ -23,8 +23,8 @@ import iotests import os -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2'], + supported_platforms=['linux']) with iotests.FilePath('img') as img_path, \ iotests.FilePath('mig_fifo') as fifo, \ diff --git a/tests/qemu-iotests/264 b/tests/qemu-iotests/264 index 879123a..304a744 100755 --- a/tests/qemu-iotests/264 +++ b/tests/qemu-iotests/264 @@ -24,7 +24,9 @@ import iotests from iotests import qemu_img_create, qemu_io_silent_check, file_path, \ qemu_nbd_popen, log -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize( + supported_fmts=['qcow2'], +) disk_a, disk_b, nbd_sock = file_path('disk_a', 'disk_b', 'nbd-sock') nbd_uri = 'nbd+unix:///?socket=' + nbd_sock diff --git a/tests/qemu-iotests/274 b/tests/qemu-iotests/274 index e951f72..5d1bf34 100755 --- a/tests/qemu-iotests/274 +++ b/tests/qemu-iotests/274 @@ -21,8 +21,8 @@ import iotests -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_platform(['linux']) +iotests.script_initialize(supported_fmts=['qcow2'], + supported_platforms=['linux']) size_short = 1 * 1024 * 1024 size_long = 2 * 1024 * 1024 diff --git a/tests/qemu-iotests/277 b/tests/qemu-iotests/277 index 04aa15a..d34f870 100755 --- a/tests/qemu-iotests/277 +++ b/tests/qemu-iotests/277 @@ -23,6 +23,8 @@ import subprocess import iotests from iotests import file_path, log +iotests.script_initialize() + nbd_sock, conf_file = file_path('nbd-sock', 'nbd-fault-injector.conf') diff --git a/tests/qemu-iotests/280 b/tests/qemu-iotests/280 index 69288fd..f594bb9 100755 --- a/tests/qemu-iotests/280 +++ b/tests/qemu-iotests/280 @@ -22,9 +22,11 @@ import iotests import os -iotests.verify_image_format(supported_fmts=['qcow2']) -iotests.verify_protocol(supported=['file']) -iotests.verify_platform(['linux']) +iotests.script_initialize( + supported_fmts=['qcow2'], + supported_protocols=['file'], + supported_platforms=['linux'], +) with iotests.FilePath('base') as base_path , \ iotests.FilePath('top') as top_path, \ diff --git a/tests/qemu-iotests/283 b/tests/qemu-iotests/283 index 55b7cff..e17b953 100644 --- a/tests/qemu-iotests/283 +++ b/tests/qemu-iotests/283 @@ -21,7 +21,9 @@ import iotests # The test is unrelated to formats, restrict it to qcow2 to avoid extra runs -iotests.verify_image_format(supported_fmts=['qcow2']) +iotests.script_initialize( + supported_fmts=['qcow2'], +) size = 1024 * 1024 diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py index 5f8c263..6c0e781 100644 --- a/tests/qemu-iotests/iotests.py +++ b/tests/qemu-iotests/iotests.py @@ -16,26 +16,39 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. # -import errno +import atexit +from collections import OrderedDict +import faulthandler +import io +import json +import logging import os import re +import signal +import struct import subprocess -import string -import unittest import sys -import struct -import json -import signal -import logging -import atexit -import io -from collections import OrderedDict -import faulthandler +from typing import (Any, Callable, Dict, Iterable, + List, Optional, Sequence, TypeVar) +import unittest +# pylint: disable=import-error, wrong-import-position sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python')) from qemu import qtest -assert sys.version_info >= (3,6) +assert sys.version_info >= (3, 6) + +# Type Aliases +QMPResponse = Dict[str, Any] + + +# Use this logger for logging messages directly from the iotests module +logger = logging.getLogger('qemu.iotests') +logger.addHandler(logging.NullHandler()) + +# Use this logger for messages that ought to be used for diff output. +test_logger = logging.getLogger('qemu.iotests.diff_io') + faulthandler.enable() @@ -80,9 +93,11 @@ luks_default_key_secret_opt = 'key-secret=keysec0' def qemu_img(*args): '''Run qemu-img and return the exit code''' devnull = open('/dev/null', 'r+') - exitcode = subprocess.call(qemu_img_args + list(args), stdin=devnull, stdout=devnull) + exitcode = subprocess.call(qemu_img_args + list(args), + stdin=devnull, stdout=devnull) if exitcode < 0: - sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args)))) + sys.stderr.write('qemu-img received signal %i: %s\n' + % (-exitcode, ' '.join(qemu_img_args + list(args)))) return exitcode def ordered_qmp(qmsg, conv_keys=True): @@ -121,7 +136,8 @@ def qemu_img_verbose(*args): '''Run qemu-img without suppressing its output and return the exit code''' exitcode = subprocess.call(qemu_img_args + list(args)) if exitcode < 0: - sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args)))) + sys.stderr.write('qemu-img received signal %i: %s\n' + % (-exitcode, ' '.join(qemu_img_args + list(args)))) return exitcode def qemu_img_pipe(*args): @@ -132,7 +148,8 @@ def qemu_img_pipe(*args): universal_newlines=True) exitcode = subp.wait() if exitcode < 0: - sys.stderr.write('qemu-img received signal %i: %s\n' % (-exitcode, ' '.join(qemu_img_args + list(args)))) + sys.stderr.write('qemu-img received signal %i: %s\n' + % (-exitcode, ' '.join(qemu_img_args + list(args)))) return subp.communicate()[0] def qemu_img_log(*args): @@ -140,12 +157,12 @@ def qemu_img_log(*args): log(result, filters=[filter_testfiles]) return result -def img_info_log(filename, filter_path=None, imgopts=False, extra_args=[]): - args = [ 'info' ] +def img_info_log(filename, filter_path=None, imgopts=False, extra_args=()): + args = ['info'] if imgopts: args.append('--image-opts') else: - args += [ '-f', imgfmt ] + args += ['-f', imgfmt] args += extra_args args.append(filename) @@ -162,7 +179,8 @@ def qemu_io(*args): universal_newlines=True) exitcode = subp.wait() if exitcode < 0: - sys.stderr.write('qemu-io received signal %i: %s\n' % (-exitcode, ' '.join(args))) + sys.stderr.write('qemu-io received signal %i: %s\n' + % (-exitcode, ' '.join(args))) return subp.communicate()[0] def qemu_io_log(*args): @@ -224,7 +242,7 @@ class QemuIoInteractive: # quit command is in close(), '\n' is added automatically assert '\n' not in cmd cmd = cmd.strip() - assert cmd != 'q' and cmd != 'quit' + assert cmd not in ('q', 'quit') self._p.stdin.write(cmd + '\n') self._p.stdin.flush() return self._read_output() @@ -246,10 +264,8 @@ def qemu_nbd_early_pipe(*args): sys.stderr.write('qemu-nbd received signal %i: %s\n' % (-exitcode, ' '.join(qemu_nbd_args + ['--fork'] + list(args)))) - if exitcode == 0: - return exitcode, '' - else: - return exitcode, subp.communicate()[0] + + return exitcode, subp.communicate()[0] if exitcode else '' def qemu_nbd_popen(*args): '''Run qemu-nbd in daemon mode and return the parent's exit code''' @@ -286,10 +302,13 @@ win32_re = re.compile(r"\r") def filter_win32(msg): return win32_re.sub("", msg) -qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* \([0-9\/.inf]* [EPTGMKiBbytes]*\/sec and [0-9\/.inf]* ops\/sec\)") +qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* " + r"\([0-9\/.inf]* [EPTGMKiBbytes]*\/sec " + r"and [0-9\/.inf]* ops\/sec\)") def filter_qemu_io(msg): msg = filter_win32(msg) - return qemu_io_re.sub("X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)", msg) + return qemu_io_re.sub("X ops; XX:XX:XX.X " + "(XXX YYY/sec and XXX ops/sec)", msg) chown_re = re.compile(r"chown [0-9]+:[0-9]+") def filter_chown(msg): @@ -313,7 +332,7 @@ def filter_qmp(qmsg, filter_fn): items = qmsg.items() for k, v in items: - if isinstance(v, list) or isinstance(v, dict): + if isinstance(v, (dict, list)): qmsg[k] = filter_qmp(v, filter_fn) else: qmsg[k] = filter_fn(k, v) @@ -324,7 +343,7 @@ def filter_testfiles(msg): return msg.replace(prefix, 'TEST_DIR/PID-') def filter_qmp_testfiles(qmsg): - def _filter(key, value): + def _filter(_key, value): if is_str(value): return filter_testfiles(value) return value @@ -342,7 +361,9 @@ def filter_img_info(output, filename): line = filter_testfiles(line) line = line.replace(imgfmt, 'IMGFMT') line = re.sub('iters: [0-9]+', 'iters: XXX', line) - line = re.sub('uuid: [-a-f0-9]+', 'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX', line) + line = re.sub('uuid: [-a-f0-9]+', + 'uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX', + line) line = re.sub('cid: [0-9]+', 'cid: XXXXXXXXXX', line) lines.append(line) return '\n'.join(lines) @@ -351,36 +372,40 @@ def filter_imgfmt(msg): return msg.replace(imgfmt, 'IMGFMT') def filter_qmp_imgfmt(qmsg): - def _filter(key, value): + def _filter(_key, value): if is_str(value): return filter_imgfmt(value) return value return filter_qmp(qmsg, _filter) -def log(msg, filters=[], indent=None): - '''Logs either a string message or a JSON serializable message (like QMP). - If indent is provided, JSON serializable messages are pretty-printed.''' + +Msg = TypeVar('Msg', Dict[str, Any], List[Any], str) + +def log(msg: Msg, + filters: Iterable[Callable[[Msg], Msg]] = (), + indent: Optional[int] = None) -> None: + """ + Logs either a string message or a JSON serializable message (like QMP). + If indent is provided, JSON serializable messages are pretty-printed. + """ for flt in filters: msg = flt(msg) - if isinstance(msg, dict) or isinstance(msg, list): - # Python < 3.4 needs to know not to add whitespace when pretty-printing: - separators = (', ', ': ') if indent is None else (',', ': ') + if isinstance(msg, (dict, list)): # Don't sort if it's already sorted do_sort = not isinstance(msg, OrderedDict) - print(json.dumps(msg, sort_keys=do_sort, - indent=indent, separators=separators)) + test_logger.info(json.dumps(msg, sort_keys=do_sort, indent=indent)) else: - print(msg) + test_logger.info(msg) class Timeout: - def __init__(self, seconds, errmsg = "Timeout"): + def __init__(self, seconds, errmsg="Timeout"): self.seconds = seconds self.errmsg = errmsg def __enter__(self): signal.signal(signal.SIGALRM, self.timeout) signal.setitimer(signal.ITIMER_REAL, self.seconds) return self - def __exit__(self, type, value, traceback): + def __exit__(self, exc_type, value, traceback): signal.setitimer(signal.ITIMER_REAL, 0) return False def timeout(self, signum, frame): @@ -389,7 +414,7 @@ class Timeout: def file_pattern(name): return "{0}-{1}".format(os.getpid(), name) -class FilePaths(object): +class FilePaths: """ FilePaths is an auto-generated filename that cleans itself up. @@ -490,21 +515,21 @@ class VM(qtest.QEMUQtestMachine): self._args.append(opts) return self - def add_drive(self, path, opts='', interface='virtio', format=imgfmt): + def add_drive(self, path, opts='', interface='virtio', img_format=imgfmt): '''Add a virtio-blk drive to the VM''' options = ['if=%s' % interface, 'id=drive%d' % self._num_drives] if path is not None: options.append('file=%s' % path) - options.append('format=%s' % format) + options.append('format=%s' % img_format) options.append('cache=%s' % cachemode) options.append('aio=%s' % aiomode) if opts: options.append(opts) - if format == 'luks' and 'key-secret' not in opts: + if img_format == 'luks' and 'key-secret' not in opts: # default luks support if luks_default_secret_object not in self._args: self.add_object(luks_default_secret_object) @@ -529,30 +554,37 @@ class VM(qtest.QEMUQtestMachine): self._args.append(addr) return self - def pause_drive(self, drive, event=None): - '''Pause drive r/w operations''' + def hmp(self, command_line: str, use_log: bool = False) -> QMPResponse: + cmd = 'human-monitor-command' + kwargs = {'command-line': command_line} + if use_log: + return self.qmp_log(cmd, **kwargs) + else: + return self.qmp(cmd, **kwargs) + + def pause_drive(self, drive: str, event: Optional[str] = None) -> None: + """Pause drive r/w operations""" if not event: self.pause_drive(drive, "read_aio") self.pause_drive(drive, "write_aio") return - self.qmp('human-monitor-command', - command_line='qemu-io %s "break %s bp_%s"' % (drive, event, drive)) + self.hmp(f'qemu-io {drive} "break {event} bp_{drive}"') - def resume_drive(self, drive): - self.qmp('human-monitor-command', - command_line='qemu-io %s "remove_break bp_%s"' % (drive, drive)) + def resume_drive(self, drive: str) -> None: + """Resume drive r/w operations""" + self.hmp(f'qemu-io {drive} "remove_break bp_{drive}"') - def hmp_qemu_io(self, drive, cmd): - '''Write to a given drive using an HMP command''' - return self.qmp('human-monitor-command', - command_line='qemu-io %s "%s"' % (drive, cmd)) + def hmp_qemu_io(self, drive: str, cmd: str, + use_log: bool = False) -> QMPResponse: + """Write to a given drive using an HMP command""" + return self.hmp(f'qemu-io {drive} "{cmd}"', use_log=use_log) def flatten_qmp_object(self, obj, output=None, basestr=''): if output is None: output = dict() if isinstance(obj, list): - for i in range(len(obj)): - self.flatten_qmp_object(obj[i], output, basestr + str(i) + '.') + for i, item in enumerate(obj): + self.flatten_qmp_object(item, output, basestr + str(i) + '.') elif isinstance(obj, dict): for key in obj: self.flatten_qmp_object(obj[key], output, basestr + key + '.') @@ -573,7 +605,7 @@ class VM(qtest.QEMUQtestMachine): result.append(filter_qmp_event(ev)) return result - def qmp_log(self, cmd, filters=[], indent=None, **kwargs): + def qmp_log(self, cmd, filters=(), indent=None, **kwargs): full_cmd = OrderedDict(( ("execute", cmd), ("arguments", ordered_qmp(kwargs)) @@ -585,7 +617,7 @@ class VM(qtest.QEMUQtestMachine): # Returns None on success, and an error string on failure def run_job(self, job, auto_finalize=True, auto_dismiss=False, - pre_finalize=None, cancel=False, use_log=True, wait=60.0): + pre_finalize=None, cancel=False, wait=60.0): """ run_job moves a job from creation through to dismissal. @@ -598,7 +630,6 @@ class VM(qtest.QEMUQtestMachine): invoked prior to issuing job-finalize, if any. :param cancel: Bool. When true, cancels the job after the pre_finalize callback. - :param use_log: Bool. When false, does not log QMP messages. :param wait: Float. Timeout value specifying how long to wait for any event, in seconds. Defaults to 60.0. """ @@ -616,8 +647,7 @@ class VM(qtest.QEMUQtestMachine): while True: ev = filter_qmp_event(self.events_wait(events, timeout=wait)) if ev['event'] != 'JOB_STATUS_CHANGE': - if use_log: - log(ev) + log(ev) continue status = ev['data']['status'] if status == 'aborting': @@ -625,29 +655,18 @@ class VM(qtest.QEMUQtestMachine): for j in result['return']: if j['id'] == job: error = j['error'] - if use_log: - log('Job failed: %s' % (j['error'])) + log('Job failed: %s' % (j['error'])) elif status == 'ready': - if use_log: - self.qmp_log('job-complete', id=job) - else: - self.qmp('job-complete', id=job) + self.qmp_log('job-complete', id=job) elif status == 'pending' and not auto_finalize: if pre_finalize: pre_finalize() - if cancel and use_log: + if cancel: self.qmp_log('job-cancel', id=job) - elif cancel: - self.qmp('job-cancel', id=job) - elif use_log: - self.qmp_log('job-finalize', id=job) else: - self.qmp('job-finalize', id=job) + self.qmp_log('job-finalize', id=job) elif status == 'concluded' and not auto_dismiss: - if use_log: - self.qmp_log('job-dismiss', id=job) - else: - self.qmp('job-dismiss', id=job) + self.qmp_log('job-dismiss', id=job) elif status == 'null': return error @@ -710,9 +729,7 @@ class VM(qtest.QEMUQtestMachine): for bitmap in bitmaps[node_name]: if bitmap.get('name', '') == bitmap_name: - if recording is None: - return bitmap - elif bitmap.get('recording') == recording: + if recording is None or bitmap.get('recording') == recording: return bitmap return None @@ -763,12 +780,13 @@ class VM(qtest.QEMUQtestMachine): assert node is not None, 'Cannot follow path %s%s' % (root, path) try: - node_id = next(edge['child'] for edge in graph['edges'] \ - if edge['parent'] == node['id'] and - edge['name'] == child_name) + node_id = next(edge['child'] for edge in graph['edges'] + if (edge['parent'] == node['id'] and + edge['name'] == child_name)) + + node = next(node for node in graph['nodes'] + if node['id'] == node_id) - node = next(node for node in graph['nodes'] \ - if node['id'] == node_id) except StopIteration: node = None @@ -786,6 +804,12 @@ index_re = re.compile(r'([^\[]+)\[([^\]]+)\]') class QMPTestCase(unittest.TestCase): '''Abstract base class for QMP test cases''' + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + # Many users of this class set a VM property we rely on heavily + # in the methods below. + self.vm = None + def dictpath(self, d, path): '''Traverse a path in a nested dict''' for component in path.split('/'): @@ -795,16 +819,18 @@ class QMPTestCase(unittest.TestCase): idx = int(idx) if not isinstance(d, dict) or component not in d: - self.fail('failed path traversal for "%s" in "%s"' % (path, str(d))) + self.fail(f'failed path traversal for "{path}" in "{d}"') d = d[component] if m: if not isinstance(d, list): - self.fail('path component "%s" in "%s" is not a list in "%s"' % (component, path, str(d))) + self.fail(f'path component "{component}" in "{path}" ' + f'is not a list in "{d}"') try: d = d[idx] except IndexError: - self.fail('invalid index "%s" in path "%s" in "%s"' % (idx, path, str(d))) + self.fail(f'invalid index "{idx}" in path "{path}" ' + f'in "{d}"') return d def assert_qmp_absent(self, d, path): @@ -831,7 +857,7 @@ class QMPTestCase(unittest.TestCase): else: self.assertEqual(result, value, '"%s" is "%s", expected "%s"' - % (path, str(result), str(value))) + % (path, str(result), str(value))) def assert_no_active_block_jobs(self): result = self.vm.qmp('query-block-jobs') @@ -841,24 +867,27 @@ class QMPTestCase(unittest.TestCase): """Issue a query-named-block-nodes and assert node_name and/or file_name is present in the result""" def check_equal_or_none(a, b): - return a == None or b == None or a == b + return a is None or b is None or a == b assert node_name or file_name result = self.vm.qmp('query-named-block-nodes') for x in result["return"]: if check_equal_or_none(x.get("node-name"), node_name) and \ check_equal_or_none(x.get("file"), file_name): return - self.assertTrue(False, "Cannot find %s %s in result:\n%s" % \ - (node_name, file_name, result)) + self.fail("Cannot find %s %s in result:\n%s" % + (node_name, file_name, result)) def assert_json_filename_equal(self, json_filename, reference): '''Asserts that the given filename is a json: filename and that its content is equal to the given reference object''' self.assertEqual(json_filename[:5], 'json:') - self.assertEqual(self.vm.flatten_qmp_object(json.loads(json_filename[5:])), - self.vm.flatten_qmp_object(reference)) + self.assertEqual( + self.vm.flatten_qmp_object(json.loads(json_filename[5:])), + self.vm.flatten_qmp_object(reference) + ) - def cancel_and_wait(self, drive='drive0', force=False, resume=False, wait=60.0): + def cancel_and_wait(self, drive='drive0', force=False, + resume=False, wait=60.0): '''Cancel a block job and wait for it to finish, returning the event''' result = self.vm.qmp('block-job-cancel', device=drive, force=force) self.assert_qmp(result, 'return', {}) @@ -882,8 +911,8 @@ class QMPTestCase(unittest.TestCase): self.assert_no_active_block_jobs() return result - def wait_until_completed(self, drive='drive0', check_offset=True, wait=60.0, - error=None): + def wait_until_completed(self, drive='drive0', check_offset=True, + wait=60.0, error=None): '''Wait for a block job to finish, returning the event''' while True: for event in self.vm.get_qmp_events(wait=wait): @@ -898,13 +927,13 @@ class QMPTestCase(unittest.TestCase): self.assert_qmp(event, 'data/error', error) self.assert_no_active_block_jobs() return event - elif event['event'] == 'JOB_STATUS_CHANGE': + if event['event'] == 'JOB_STATUS_CHANGE': self.assert_qmp(event, 'data/id', drive) def wait_ready(self, drive='drive0'): - '''Wait until a block job BLOCK_JOB_READY event''' - f = {'data': {'type': 'mirror', 'device': drive } } - event = self.vm.event_wait(name='BLOCK_JOB_READY', match=f) + """Wait until a BLOCK_JOB_READY event, and return the event.""" + f = {'data': {'type': 'mirror', 'device': drive}} + return self.vm.event_wait(name='BLOCK_JOB_READY', match=f) def wait_ready_and_cancel(self, drive='drive0'): self.wait_ready(drive=drive) @@ -933,7 +962,7 @@ class QMPTestCase(unittest.TestCase): for job in result['return']: if job['device'] == job_id: found = True - if job['paused'] == True and job['busy'] == False: + if job['paused'] and not job['busy']: return job break assert found @@ -957,7 +986,7 @@ def notrun(reason): seq = os.path.basename(sys.argv[0]) open('%s/%s.notrun' % (output_dir, seq), 'w').write(reason + '\n') - print('%s not run: %s' % (seq, reason)) + logger.warning("%s not run: %s", seq, reason) sys.exit(0) def case_notrun(reason): @@ -972,7 +1001,8 @@ def case_notrun(reason): open('%s/%s.casenotrun' % (output_dir, seq), 'a').write( ' [case not run] ' + reason + '\n') -def verify_image_format(supported_fmts=[], unsupported_fmts=[]): +def _verify_image_format(supported_fmts: Sequence[str] = (), + unsupported_fmts: Sequence[str] = ()) -> None: assert not (supported_fmts and unsupported_fmts) if 'generic' in supported_fmts and \ @@ -986,7 +1016,8 @@ def verify_image_format(supported_fmts=[], unsupported_fmts=[]): if not_sup or (imgfmt in unsupported_fmts): notrun('not suitable for this image format: %s' % imgfmt) -def verify_protocol(supported=[], unsupported=[]): +def _verify_protocol(supported: Sequence[str] = (), + unsupported: Sequence[str] = ()) -> None: assert not (supported and unsupported) if 'generic' in supported: @@ -996,20 +1027,20 @@ def verify_protocol(supported=[], unsupported=[]): if not_sup or (imgproto in unsupported): notrun('not suitable for this protocol: %s' % imgproto) -def verify_platform(supported=None, unsupported=None): - if unsupported is not None: - if any((sys.platform.startswith(x) for x in unsupported)): - notrun('not suitable for this OS: %s' % sys.platform) +def _verify_platform(supported: Sequence[str] = (), + unsupported: Sequence[str] = ()) -> None: + if any((sys.platform.startswith(x) for x in unsupported)): + notrun('not suitable for this OS: %s' % sys.platform) - if supported is not None: + if supported: if not any((sys.platform.startswith(x) for x in supported)): notrun('not suitable for this OS: %s' % sys.platform) -def verify_cache_mode(supported_cache_modes=[]): +def _verify_cache_mode(supported_cache_modes: Sequence[str] = ()) -> None: if supported_cache_modes and (cachemode not in supported_cache_modes): notrun('not suitable for this cache mode: %s' % cachemode) -def verify_aio_mode(supported_aio_modes=[]): +def _verify_aio_mode(supported_aio_modes: Sequence[str] = ()): if supported_aio_modes and (aiomode not in supported_aio_modes): notrun('not suitable for this aio mode: %s' % aiomode) @@ -1022,16 +1053,19 @@ def verify_quorum(): notrun('quorum support missing') def qemu_pipe(*args): - '''Run qemu with an option to print something and exit (e.g. a help option), - and return its output''' + """ + Run qemu with an option to print something and exit (e.g. a help option). + + :return: QEMU's stdout output. + """ args = [qemu_prog] + qemu_opts + list(args) subp = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True) exitcode = subp.wait() if exitcode < 0: - sys.stderr.write('qemu received signal %i: %s\n' % (-exitcode, - ' '.join(args))) + sys.stderr.write('qemu received signal %i: %s\n' % + (-exitcode, ' '.join(args))) return subp.communicate()[0] def supported_formats(read_only=False): @@ -1049,7 +1083,7 @@ def supported_formats(read_only=False): return supported_formats.formats[read_only] -def skip_if_unsupported(required_formats=[], read_only=False): +def skip_if_unsupported(required_formats=(), read_only=False): '''Skip Test Decorator Runs the test if all the required formats are whitelisted''' def skip_test_decorator(func): @@ -1061,8 +1095,9 @@ def skip_if_unsupported(required_formats=[], read_only=False): usf_list = list(set(fmts) - set(supported_formats(read_only))) if usf_list: - test_case.case_skip('{}: formats {} are not whitelisted'.format( - test_case, usf_list)) + msg = f'{test_case}: formats {usf_list} are not whitelisted' + test_case.case_skip(msg) + return None else: return func(test_case, *args, **kwargs) return func_wrapper @@ -1074,11 +1109,23 @@ def skip_if_user_is_root(func): def func_wrapper(*args, **kwargs): if os.getuid() == 0: case_notrun('{}: cannot be run as root'.format(args[0])) + return None else: return func(*args, **kwargs) return func_wrapper -def execute_unittest(output, verbosity, debug): +def execute_unittest(debug=False): + """Executes unittests within the calling module.""" + + verbosity = 2 if debug else 1 + + if debug: + output = sys.stdout + else: + # We need to filter out the time taken from the output so that + # qemu-iotest can reliably diff the results against master output. + output = io.StringIO() + runner = unittest.TextTestRunner(stream=output, descriptions=True, verbosity=verbosity) try: @@ -1086,6 +1133,8 @@ def execute_unittest(output, verbosity, debug): # exception unittest.main(testRunner=runner) finally: + # We need to filter out the time taken from the output so that + # qemu-iotest can reliably diff the results against master output. if not debug: out = output.getvalue() out = re.sub(r'Ran (\d+) tests? in [\d.]+s', r'Ran \1 tests', out) @@ -1097,13 +1146,19 @@ def execute_unittest(output, verbosity, debug): sys.stderr.write(out) -def execute_test(test_function=None, - supported_fmts=[], - supported_platforms=None, - supported_cache_modes=[], supported_aio_modes={}, - unsupported_fmts=[], supported_protocols=[], - unsupported_protocols=[]): - """Run either unittest or script-style tests.""" +def execute_setup_common(supported_fmts: Sequence[str] = (), + supported_platforms: Sequence[str] = (), + supported_cache_modes: Sequence[str] = (), + supported_aio_modes: Sequence[str] = (), + unsupported_fmts: Sequence[str] = (), + supported_protocols: Sequence[str] = (), + unsupported_protocols: Sequence[str] = ()) -> bool: + """ + Perform necessary setup for either script-style or unittest-style tests. + + :return: Bool; Whether or not debug mode has been requested via the CLI. + """ + # Note: Python 3.6 and pylint do not like 'Collection' so use 'Sequence'. # We are using TEST_DIR and QEMU_DEFAULT_MACHINE as proxies to # indicate that we're not being run via "check". There may be @@ -1113,34 +1168,51 @@ def execute_test(test_function=None, sys.stderr.write('Please run this test via the "check" script\n') sys.exit(os.EX_USAGE) - debug = '-d' in sys.argv - verbosity = 1 - verify_image_format(supported_fmts, unsupported_fmts) - verify_protocol(supported_protocols, unsupported_protocols) - verify_platform(supported=supported_platforms) - verify_cache_mode(supported_cache_modes) - verify_aio_mode(supported_aio_modes) + _verify_image_format(supported_fmts, unsupported_fmts) + _verify_protocol(supported_protocols, unsupported_protocols) + _verify_platform(supported=supported_platforms) + _verify_cache_mode(supported_cache_modes) + _verify_aio_mode(supported_aio_modes) + debug = '-d' in sys.argv if debug: - output = sys.stdout - verbosity = 2 sys.argv.remove('-d') - else: - # We need to filter out the time taken from the output so that - # qemu-iotest can reliably diff the results against master output. - output = io.StringIO() - logging.basicConfig(level=(logging.DEBUG if debug else logging.WARN)) + logger.debug("iotests debugging messages active") + + return debug + +def execute_test(*args, test_function=None, **kwargs): + """Run either unittest or script-style tests.""" + debug = execute_setup_common(*args, **kwargs) if not test_function: - execute_unittest(output, verbosity, debug) + execute_unittest(debug) else: test_function() +def activate_logging(): + """Activate iotests.log() output to stdout for script-style tests.""" + handler = logging.StreamHandler(stream=sys.stdout) + formatter = logging.Formatter('%(message)s') + handler.setFormatter(formatter) + test_logger.addHandler(handler) + test_logger.setLevel(logging.INFO) + test_logger.propagate = False + +# This is called from script-style iotests without a single point of entry +def script_initialize(*args, **kwargs): + """Initialize script-style tests without running any tests.""" + activate_logging() + execute_setup_common(*args, **kwargs) + +# This is called from script-style iotests with a single point of entry def script_main(test_function, *args, **kwargs): """Run script-style tests outside of the unittest framework""" - execute_test(test_function, *args, **kwargs) + activate_logging() + execute_test(*args, test_function=test_function, **kwargs) +# This is called from unittest style iotests def main(*args, **kwargs): """Run tests using the unittest framework""" - execute_test(None, *args, **kwargs) + execute_test(*args, **kwargs) diff --git a/tests/qemu-iotests/pylintrc b/tests/qemu-iotests/pylintrc new file mode 100644 index 0000000..5481afe --- /dev/null +++ b/tests/qemu-iotests/pylintrc @@ -0,0 +1,26 @@ +[MESSAGES CONTROL] + +# Disable the message, report, category or checker with the given id(s). You +# can either give multiple identifiers separated by comma (,) or put this +# option multiple times (only on the command line, not in the configuration +# file where it should appear only once). You can also use "--disable=all" to +# disable everything first and then reenable specific checks. For example, if +# you want to run only the similarities checker, you can use "--disable=all +# --enable=similarities". If you want to run only the classes checker, but have +# no Warning level messages displayed, use "--disable=all --enable=classes +# --disable=W". +disable=invalid-name, + no-else-return, + too-few-public-methods, + too-many-arguments, + too-many-branches, + too-many-lines, + too-many-locals, + too-many-public-methods, + # These are temporary, and should be removed: + missing-docstring, + +[FORMAT] + +# Maximum number of characters on a single line. +max-line-length=79 |