diff options
| -rw-r--r-- | block.c | 8 | ||||
| -rw-r--r-- | block/qcow2.c | 72 | ||||
| -rw-r--r-- | include/block/block.h | 3 | ||||
| -rw-r--r-- | include/block/block_int.h | 3 | ||||
| -rw-r--r-- | qemu-img.c | 4 | ||||
| -rw-r--r-- | tests/qemu-iotests/060.out | 4 | ||||
| -rw-r--r-- | tests/qemu-iotests/061.out | 7 | ||||
| -rw-r--r-- | tests/qemu-iotests/080.out | 4 | ||||
| -rw-r--r-- | tests/qemu-iotests/112.out | 5 |
9 files changed, 58 insertions, 52 deletions
@@ -4996,15 +4996,19 @@ void bdrv_remove_aio_context_notifier(BlockDriverState *bs, } int bdrv_amend_options(BlockDriverState *bs, QemuOpts *opts, - BlockDriverAmendStatusCB *status_cb, void *cb_opaque) + BlockDriverAmendStatusCB *status_cb, void *cb_opaque, + Error **errp) { if (!bs->drv) { + error_setg(errp, "Node is ejected"); return -ENOMEDIUM; } if (!bs->drv->bdrv_amend_options) { + error_setg(errp, "Block driver '%s' does not support option amendment", + bs->drv->format_name); return -ENOTSUP; } - return bs->drv->bdrv_amend_options(bs, opts, status_cb, cb_opaque); + return bs->drv->bdrv_amend_options(bs, opts, status_cb, cb_opaque, errp); } /* This function will be called by the bdrv_recurse_is_first_non_filter method diff --git a/block/qcow2.c b/block/qcow2.c index 549fee9b69..6b2d88759d 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -4215,22 +4215,21 @@ static int qcow2_load_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, * have to be removed. */ static int qcow2_downgrade(BlockDriverState *bs, int target_version, - BlockDriverAmendStatusCB *status_cb, void *cb_opaque) + BlockDriverAmendStatusCB *status_cb, void *cb_opaque, + Error **errp) { BDRVQcow2State *s = bs->opaque; int current_version = s->qcow_version; int ret; - if (target_version == current_version) { - return 0; - } else if (target_version > current_version) { - return -EINVAL; - } else if (target_version != 2) { - return -EINVAL; - } + /* This is qcow2_downgrade(), not qcow2_upgrade() */ + assert(target_version < current_version); + + /* There are no other versions (now) that you can downgrade to */ + assert(target_version == 2); if (s->refcount_order != 4) { - error_report("compat=0.10 requires refcount_bits=16"); + error_setg(errp, "compat=0.10 requires refcount_bits=16"); return -ENOTSUP; } @@ -4238,6 +4237,7 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, if (s->incompatible_features & QCOW2_INCOMPAT_DIRTY) { ret = qcow2_mark_clean(bs); if (ret < 0) { + error_setg_errno(errp, -ret, "Failed to make the image clean"); return ret; } } @@ -4247,6 +4247,8 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, * best thing to do anyway */ if (s->incompatible_features) { + error_setg(errp, "Cannot downgrade an image with incompatible features " + "%#" PRIx64 " set", s->incompatible_features); return -ENOTSUP; } @@ -4260,6 +4262,7 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, ret = qcow2_expand_zero_clusters(bs, status_cb, cb_opaque); if (ret < 0) { + error_setg_errno(errp, -ret, "Failed to turn zero into data clusters"); return ret; } @@ -4267,6 +4270,7 @@ static int qcow2_downgrade(BlockDriverState *bs, int target_version, ret = qcow2_update_header(bs); if (ret < 0) { s->qcow_version = current_version; + error_setg_errno(errp, -ret, "Failed to update the image header"); return ret; } return 0; @@ -4344,7 +4348,8 @@ static void qcow2_amend_helper_cb(BlockDriverState *bs, static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, BlockDriverAmendStatusCB *status_cb, - void *cb_opaque) + void *cb_opaque, + Error **errp) { BDRVQcow2State *s = bs->opaque; int old_version = s->qcow_version, new_version = old_version; @@ -4356,7 +4361,6 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, bool encrypt; int encformat; int refcount_bits = s->refcount_bits; - Error *local_err = NULL; int ret; QemuOptDesc *desc = opts->list->desc; Qcow2AmendHelperCBInfo helper_cb_info; @@ -4377,11 +4381,11 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, } else if (!strcmp(compat, "1.1")) { new_version = 3; } else { - error_report("Unknown compatibility level %s", compat); + error_setg(errp, "Unknown compatibility level %s", compat); return -EINVAL; } } else if (!strcmp(desc->name, BLOCK_OPT_PREALLOC)) { - error_report("Cannot change preallocation mode"); + error_setg(errp, "Cannot change preallocation mode"); return -ENOTSUP; } else if (!strcmp(desc->name, BLOCK_OPT_SIZE)) { new_size = qemu_opt_get_size(opts, BLOCK_OPT_SIZE, 0); @@ -4394,7 +4398,8 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, !!s->crypto); if (encrypt != !!s->crypto) { - error_report("Changing the encryption flag is not supported"); + error_setg(errp, + "Changing the encryption flag is not supported"); return -ENOTSUP; } } else if (!strcmp(desc->name, BLOCK_OPT_ENCRYPT_FORMAT)) { @@ -4402,17 +4407,19 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, qemu_opt_get(opts, BLOCK_OPT_ENCRYPT_FORMAT)); if (encformat != s->crypt_method_header) { - error_report("Changing the encryption format is not supported"); + error_setg(errp, + "Changing the encryption format is not supported"); return -ENOTSUP; } } else if (g_str_has_prefix(desc->name, "encrypt.")) { - error_report("Changing the encryption parameters is not supported"); + error_setg(errp, + "Changing the encryption parameters is not supported"); return -ENOTSUP; } else if (!strcmp(desc->name, BLOCK_OPT_CLUSTER_SIZE)) { cluster_size = qemu_opt_get_size(opts, BLOCK_OPT_CLUSTER_SIZE, cluster_size); if (cluster_size != s->cluster_size) { - error_report("Changing the cluster size is not supported"); + error_setg(errp, "Changing the cluster size is not supported"); return -ENOTSUP; } } else if (!strcmp(desc->name, BLOCK_OPT_LAZY_REFCOUNTS)) { @@ -4425,8 +4432,8 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, if (refcount_bits <= 0 || refcount_bits > 64 || !is_power_of_2(refcount_bits)) { - error_report("Refcount width must be a power of two and may " - "not exceed 64 bits"); + error_setg(errp, "Refcount width must be a power of two and " + "may not exceed 64 bits"); return -EINVAL; } } else { @@ -4451,6 +4458,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, ret = qcow2_update_header(bs); if (ret < 0) { s->qcow_version = old_version; + error_setg_errno(errp, -ret, "Failed to update the image header"); return ret; } } @@ -4459,18 +4467,17 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, int refcount_order = ctz32(refcount_bits); if (new_version < 3 && refcount_bits != 16) { - error_report("Different refcount widths than 16 bits require " - "compatibility level 1.1 or above (use compat=1.1 or " - "greater)"); + error_setg(errp, "Refcount widths other than 16 bits require " + "compatibility level 1.1 or above (use compat=1.1 or " + "greater)"); return -EINVAL; } helper_cb_info.current_operation = QCOW2_CHANGING_REFCOUNT_ORDER; ret = qcow2_change_refcount_order(bs, refcount_order, &qcow2_amend_helper_cb, - &helper_cb_info, &local_err); + &helper_cb_info, errp); if (ret < 0) { - error_report_err(local_err); return ret; } } @@ -4480,6 +4487,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, backing_file ?: s->image_backing_file, backing_format ?: s->image_backing_format); if (ret < 0) { + error_setg_errno(errp, -ret, "Failed to change the backing file"); return ret; } } @@ -4487,14 +4495,16 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, if (s->use_lazy_refcounts != lazy_refcounts) { if (lazy_refcounts) { if (new_version < 3) { - error_report("Lazy refcounts only supported with compatibility " - "level 1.1 and above (use compat=1.1 or greater)"); + error_setg(errp, "Lazy refcounts only supported with " + "compatibility level 1.1 and above (use compat=1.1 " + "or greater)"); return -EINVAL; } s->compatible_features |= QCOW2_COMPAT_LAZY_REFCOUNTS; ret = qcow2_update_header(bs); if (ret < 0) { s->compatible_features &= ~QCOW2_COMPAT_LAZY_REFCOUNTS; + error_setg_errno(errp, -ret, "Failed to update the image header"); return ret; } s->use_lazy_refcounts = true; @@ -4502,6 +4512,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, /* make image clean first */ ret = qcow2_mark_clean(bs); if (ret < 0) { + error_setg_errno(errp, -ret, "Failed to make the image clean"); return ret; } /* now disallow lazy refcounts */ @@ -4509,6 +4520,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, ret = qcow2_update_header(bs); if (ret < 0) { s->compatible_features |= QCOW2_COMPAT_LAZY_REFCOUNTS; + error_setg_errno(errp, -ret, "Failed to update the image header"); return ret; } s->use_lazy_refcounts = false; @@ -4517,17 +4529,15 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, if (new_size) { BlockBackend *blk = blk_new(BLK_PERM_RESIZE, BLK_PERM_ALL); - ret = blk_insert_bs(blk, bs, &local_err); + ret = blk_insert_bs(blk, bs, errp); if (ret < 0) { - error_report_err(local_err); blk_unref(blk); return ret; } - ret = blk_truncate(blk, new_size, PREALLOC_MODE_OFF, &local_err); + ret = blk_truncate(blk, new_size, PREALLOC_MODE_OFF, errp); blk_unref(blk); if (ret < 0) { - error_report_err(local_err); return ret; } } @@ -4536,7 +4546,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts, if (new_version < old_version) { helper_cb_info.current_operation = QCOW2_DOWNGRADING; ret = qcow2_downgrade(bs, new_version, &qcow2_amend_helper_cb, - &helper_cb_info); + &helper_cb_info, errp); if (ret < 0) { return ret; } diff --git a/include/block/block.h b/include/block/block.h index 6cc6c7e699..4dd4f1eab2 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -343,7 +343,8 @@ int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix); typedef void BlockDriverAmendStatusCB(BlockDriverState *bs, int64_t offset, int64_t total_work_size, void *opaque); int bdrv_amend_options(BlockDriverState *bs_new, QemuOpts *opts, - BlockDriverAmendStatusCB *status_cb, void *cb_opaque); + BlockDriverAmendStatusCB *status_cb, void *cb_opaque, + Error **errp); /* external snapshots */ bool bdrv_recurse_is_first_non_filter(BlockDriverState *bs, diff --git a/include/block/block_int.h b/include/block/block_int.h index 888b7f7bff..327e478a73 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -353,7 +353,8 @@ struct BlockDriver { int (*bdrv_amend_options)(BlockDriverState *bs, QemuOpts *opts, BlockDriverAmendStatusCB *status_cb, - void *cb_opaque); + void *cb_opaque, + Error **errp); void (*bdrv_debug_event)(BlockDriverState *bs, BlkdebugEvent event); diff --git a/qemu-img.c b/qemu-img.c index 0be11b3852..df3ec5b7fe 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -3810,10 +3810,10 @@ static int img_amend(int argc, char **argv) /* In case the driver does not call amend_status_cb() */ qemu_progress_print(0.f, 0); - ret = bdrv_amend_options(bs, opts, &amend_status_cb, NULL); + ret = bdrv_amend_options(bs, opts, &amend_status_cb, NULL, &err); qemu_progress_print(100.f, 0); if (ret < 0) { - error_report("Error while amending options: %s", strerror(-ret)); + error_report_err(err); goto out; } diff --git a/tests/qemu-iotests/060.out b/tests/qemu-iotests/060.out index 25d5c3938b..5f4264cff6 100644 --- a/tests/qemu-iotests/060.out +++ b/tests/qemu-iotests/060.out @@ -129,7 +129,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 wrote 65536/65536 bytes at offset 0 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qcow2: Marking image as corrupt: L2 table offset 0x42a00 unaligned (L1 index: 0); further corruption events will be suppressed -qemu-img: Error while amending options: Input/output error +qemu-img: Failed to turn zero into data clusters: Input/output error === Testing unaligned L2 entry === @@ -145,7 +145,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 wrote 65536/65536 bytes at offset 0 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qcow2: Marking image as corrupt: Cluster allocation offset 0x52a00 unaligned (L2 offset: 0x40000, L2 index: 0); further corruption events will be suppressed -qemu-img: Error while amending options: Input/output error +qemu-img: Failed to turn zero into data clusters: Input/output error === Testing unaligned reftable entry === diff --git a/tests/qemu-iotests/061.out b/tests/qemu-iotests/061.out index e857ef9a7d..183f7dd690 100644 --- a/tests/qemu-iotests/061.out +++ b/tests/qemu-iotests/061.out @@ -358,18 +358,12 @@ No errors were found on the image. Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 qemu-img: Lazy refcounts only supported with compatibility level 1.1 and above (use compat=1.1 or greater) -qemu-img: Error while amending options: Invalid argument qemu-img: Lazy refcounts only supported with compatibility level 1.1 and above (use compat=1.1 or greater) -qemu-img: Error while amending options: Invalid argument qemu-img: Unknown compatibility level 0.42 -qemu-img: Error while amending options: Invalid argument qemu-img: Invalid parameter 'foo' qemu-img: Changing the cluster size is not supported -qemu-img: Error while amending options: Operation not supported qemu-img: Changing the encryption flag is not supported -qemu-img: Error while amending options: Operation not supported qemu-img: Cannot change preallocation mode -qemu-img: Error while amending options: Operation not supported === Testing correct handling of unset value === @@ -377,7 +371,6 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 Should work: Should not work: qemu-img: Changing the cluster size is not supported -qemu-img: Error while amending options: Operation not supported === Testing zero expansion on inactive clusters === diff --git a/tests/qemu-iotests/080.out b/tests/qemu-iotests/080.out index 4e0f7f7b92..281c7e0d1d 100644 --- a/tests/qemu-iotests/080.out +++ b/tests/qemu-iotests/080.out @@ -65,7 +65,7 @@ wrote 512/512 bytes at offset 0 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qemu-img: Failed to load snapshot: Snapshot L1 table offset invalid qemu-img: Snapshot L1 table offset invalid -qemu-img: Error while amending options: Invalid argument +qemu-img: Failed to turn zero into data clusters: Invalid argument Failed to flush the refcount block cache: Invalid argument write failed: Invalid argument qemu-img: Snapshot L1 table offset invalid @@ -88,7 +88,7 @@ wrote 512/512 bytes at offset 0 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qemu-img: Failed to load snapshot: Snapshot L1 table too large qemu-img: Snapshot L1 table too large -qemu-img: Error while amending options: File too large +qemu-img: Failed to turn zero into data clusters: File too large Failed to flush the refcount block cache: File too large write failed: File too large qemu-img: Snapshot L1 table too large diff --git a/tests/qemu-iotests/112.out b/tests/qemu-iotests/112.out index 86f041075d..ae0318cabe 100644 --- a/tests/qemu-iotests/112.out +++ b/tests/qemu-iotests/112.out @@ -99,13 +99,11 @@ refcount bits: 64 === Amend to compat=0.10 === qemu-img: compat=0.10 requires refcount_bits=16 -qemu-img: Error while amending options: Operation not supported refcount bits: 64 No errors were found on the image. refcount bits: 16 refcount bits: 16 -qemu-img: Different refcount widths than 16 bits require compatibility level 1.1 or above (use compat=1.1 or greater) -qemu-img: Error while amending options: Invalid argument +qemu-img: Refcount widths other than 16 bits require compatibility level 1.1 or above (use compat=1.1 or greater) refcount bits: 16 === Amend with snapshot === @@ -113,7 +111,6 @@ refcount bits: 16 wrote 16777216/16777216 bytes at offset 0 16 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) qemu-img: Cannot decrease refcount entry width to 1 bits: Cluster at offset 0x50000 has a refcount of 2 -qemu-img: Error while amending options: Invalid argument No errors were found on the image. refcount bits: 16 No errors were found on the image. |