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-rw-r--r--block.c16
-rw-r--r--block/blkdebug.c2
-rw-r--r--block/block-backend.c5
-rw-r--r--block/commit.c5
-rw-r--r--block/crypto.c2
-rw-r--r--block/mirror.c2
-rw-r--r--block/parallels.c13
-rw-r--r--block/qcow.c6
-rw-r--r--block/qcow2-refcount.c5
-rw-r--r--block/qcow2.c14
-rw-r--r--block/qed.c2
-rw-r--r--block/raw-format.c2
-rw-r--r--block/vdi.c4
-rw-r--r--block/vhdx-log.c2
-rw-r--r--block/vhdx.c10
-rw-r--r--block/vmdk.c13
-rw-r--r--block/vpc.c13
-rw-r--r--blockdev.c21
-rw-r--r--include/block/block.h2
-rw-r--r--include/sysemu/block-backend.h2
-rw-r--r--qemu-img.c17
-rw-r--r--qemu-io-cmds.c5
22 files changed, 73 insertions, 90 deletions
diff --git a/block.c b/block.c
index 7b557f3..6a1937e 100644
--- a/block.c
+++ b/block.c
@@ -3307,7 +3307,7 @@ exit:
/**
* Truncate file to 'offset' bytes (needed only for file protocols)
*/
-int bdrv_truncate(BdrvChild *child, int64_t offset)
+int bdrv_truncate(BdrvChild *child, int64_t offset, Error **errp)
{
BlockDriverState *bs = child->bs;
BlockDriver *drv = bs->drv;
@@ -3315,12 +3315,18 @@ int bdrv_truncate(BdrvChild *child, int64_t offset)
assert(child->perm & BLK_PERM_RESIZE);
- if (!drv)
+ if (!drv) {
+ error_setg(errp, "No medium inserted");
return -ENOMEDIUM;
- if (!drv->bdrv_truncate)
+ }
+ if (!drv->bdrv_truncate) {
+ error_setg(errp, "Image format driver does not support resize");
return -ENOTSUP;
- if (bs->read_only)
+ }
+ if (bs->read_only) {
+ error_setg(errp, "Image is read-only");
return -EACCES;
+ }
ret = drv->bdrv_truncate(bs, offset);
if (ret == 0) {
@@ -3328,6 +3334,8 @@ int bdrv_truncate(BdrvChild *child, int64_t offset)
bdrv_dirty_bitmap_truncate(bs);
bdrv_parent_cb_resize(bs);
++bs->write_gen;
+ } else {
+ error_setg_errno(errp, -ret, "Failed to resize image");
}
return ret;
}
diff --git a/block/blkdebug.c b/block/blkdebug.c
index cc4a146..9bd066e 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -661,7 +661,7 @@ static int64_t blkdebug_getlength(BlockDriverState *bs)
static int blkdebug_truncate(BlockDriverState *bs, int64_t offset)
{
- return bdrv_truncate(bs->file, offset);
+ return bdrv_truncate(bs->file, offset, NULL);
}
static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
diff --git a/block/block-backend.c b/block/block-backend.c
index ae3d771..f5bf13e 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1746,13 +1746,14 @@ int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
BDRV_REQ_WRITE_COMPRESSED);
}
-int blk_truncate(BlockBackend *blk, int64_t offset)
+int blk_truncate(BlockBackend *blk, int64_t offset, Error **errp)
{
if (!blk_is_available(blk)) {
+ error_setg(errp, "No medium inserted");
return -ENOMEDIUM;
}
- return bdrv_truncate(blk->root, offset);
+ return bdrv_truncate(blk->root, offset, errp);
}
static void blk_pdiscard_entry(void *opaque)
diff --git a/block/commit.c b/block/commit.c
index 91d2c34..76a0d98 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -151,7 +151,7 @@ static void coroutine_fn commit_run(void *opaque)
}
if (base_len < s->common.len) {
- ret = blk_truncate(s->base, s->common.len);
+ ret = blk_truncate(s->base, s->common.len, NULL);
if (ret) {
goto out;
}
@@ -511,8 +511,9 @@ int bdrv_commit(BlockDriverState *bs)
* grow the backing file image if possible. If not possible,
* we must return an error */
if (length > backing_length) {
- ret = blk_truncate(backing, length);
+ ret = blk_truncate(backing, length, &local_err);
if (ret < 0) {
+ error_report_err(local_err);
goto ro_cleanup;
}
}
diff --git a/block/crypto.c b/block/crypto.c
index 34549b2..7ad64b5 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -389,7 +389,7 @@ static int block_crypto_truncate(BlockDriverState *bs, int64_t offset)
offset += payload_offset;
- return bdrv_truncate(bs->file, offset);
+ return bdrv_truncate(bs->file, offset, NULL);
}
static void block_crypto_close(BlockDriverState *bs)
diff --git a/block/mirror.c b/block/mirror.c
index 9f5eb69..e86f8f8 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -724,7 +724,7 @@ static void coroutine_fn mirror_run(void *opaque)
}
if (s->bdev_length > base_length) {
- ret = blk_truncate(s->target, s->bdev_length);
+ ret = blk_truncate(s->target, s->bdev_length, NULL);
if (ret < 0) {
goto immediate_exit;
}
diff --git a/block/parallels.c b/block/parallels.c
index 90acf79..8be46a7 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -223,7 +223,8 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num,
space << BDRV_SECTOR_BITS, 0);
} else {
ret = bdrv_truncate(bs->file,
- (s->data_end + space) << BDRV_SECTOR_BITS);
+ (s->data_end + space) << BDRV_SECTOR_BITS,
+ NULL);
}
if (ret < 0) {
return ret;
@@ -456,8 +457,10 @@ static int parallels_check(BlockDriverState *bs, BdrvCheckResult *res,
size - res->image_end_offset);
res->leaks += count;
if (fix & BDRV_FIX_LEAKS) {
- ret = bdrv_truncate(bs->file, res->image_end_offset);
+ Error *local_err = NULL;
+ ret = bdrv_truncate(bs->file, res->image_end_offset, &local_err);
if (ret < 0) {
+ error_report_err(local_err);
res->check_errors++;
return ret;
}
@@ -504,7 +507,7 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
blk_set_allow_write_beyond_eof(file, true);
- ret = blk_truncate(file, 0);
+ ret = blk_truncate(file, 0, errp);
if (ret < 0) {
goto exit;
}
@@ -696,7 +699,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
}
if (!(flags & BDRV_O_RESIZE) || !bdrv_has_zero_init(bs->file->bs) ||
- bdrv_truncate(bs->file, bdrv_getlength(bs->file->bs)) != 0) {
+ bdrv_truncate(bs->file, bdrv_getlength(bs->file->bs), NULL) != 0) {
s->prealloc_mode = PRL_PREALLOC_MODE_FALLOCATE;
}
@@ -739,7 +742,7 @@ static void parallels_close(BlockDriverState *bs)
}
if (bs->open_flags & BDRV_O_RDWR) {
- bdrv_truncate(bs->file, s->data_end << BDRV_SECTOR_BITS);
+ bdrv_truncate(bs->file, s->data_end << BDRV_SECTOR_BITS, NULL);
}
g_free(s->bat_dirty_bmap);
diff --git a/block/qcow.c b/block/qcow.c
index 9d6ac83..5d147b9 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -473,7 +473,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
/* round to cluster size */
cluster_offset = (cluster_offset + s->cluster_size - 1) &
~(s->cluster_size - 1);
- bdrv_truncate(bs->file, cluster_offset + s->cluster_size);
+ bdrv_truncate(bs->file, cluster_offset + s->cluster_size, NULL);
/* if encrypted, we must initialize the cluster
content which won't be written */
if (bs->encrypted &&
@@ -833,7 +833,7 @@ static int qcow_create(const char *filename, QemuOpts *opts, Error **errp)
blk_set_allow_write_beyond_eof(qcow_blk, true);
- ret = blk_truncate(qcow_blk, 0);
+ ret = blk_truncate(qcow_blk, 0, errp);
if (ret < 0) {
goto exit;
}
@@ -916,7 +916,7 @@ static int qcow_make_empty(BlockDriverState *bs)
if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table,
l1_length) < 0)
return -1;
- ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length);
+ ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, NULL);
if (ret < 0)
return ret;
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 9e96f64..4efca7e 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -1728,14 +1728,17 @@ static int check_refblocks(BlockDriverState *bs, BdrvCheckResult *res,
if (fix & BDRV_FIX_ERRORS) {
int64_t new_nb_clusters;
+ Error *local_err = NULL;
if (offset > INT64_MAX - s->cluster_size) {
ret = -EINVAL;
goto resize_fail;
}
- ret = bdrv_truncate(bs->file, offset + s->cluster_size);
+ ret = bdrv_truncate(bs->file, offset + s->cluster_size,
+ &local_err);
if (ret < 0) {
+ error_report_err(local_err);
goto resize_fail;
}
size = bdrv_getlength(bs->file->bs);
diff --git a/block/qcow2.c b/block/qcow2.c
index 6a92d2e..845eee4b 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2294,9 +2294,9 @@ static int qcow2_create2(const char *filename, int64_t total_size,
}
/* Okay, now that we have a valid image, let's give it the right size */
- ret = blk_truncate(blk, total_size);
+ ret = blk_truncate(blk, total_size, errp);
if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not resize image");
+ error_prepend(errp, "Could not resize image: ");
goto out;
}
@@ -2584,7 +2584,7 @@ qcow2_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset,
/* align end of file to a sector boundary to ease reading with
sector based I/Os */
cluster_offset = bdrv_getlength(bs->file->bs);
- return bdrv_truncate(bs->file, cluster_offset);
+ return bdrv_truncate(bs->file, cluster_offset, NULL);
}
buf = qemu_blockalign(bs, s->cluster_size);
@@ -2674,6 +2674,7 @@ fail:
static int make_completely_empty(BlockDriverState *bs)
{
BDRVQcow2State *s = bs->opaque;
+ Error *local_err = NULL;
int ret, l1_clusters;
int64_t offset;
uint64_t *new_reftable = NULL;
@@ -2798,8 +2799,10 @@ static int make_completely_empty(BlockDriverState *bs)
goto fail;
}
- ret = bdrv_truncate(bs->file, (3 + l1_clusters) * s->cluster_size);
+ ret = bdrv_truncate(bs->file, (3 + l1_clusters) * s->cluster_size,
+ &local_err);
if (ret < 0) {
+ error_report_err(local_err);
goto fail;
}
@@ -3273,9 +3276,10 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
return ret;
}
- ret = blk_truncate(blk, new_size);
+ ret = blk_truncate(blk, new_size, &local_err);
blk_unref(blk);
if (ret < 0) {
+ error_report_err(local_err);
return ret;
}
}
diff --git a/block/qed.c b/block/qed.c
index 5ec7fd8..53199ac 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -635,7 +635,7 @@ static int qed_create(const char *filename, uint32_t cluster_size,
blk_set_allow_write_beyond_eof(blk, true);
/* File must start empty and grow, check truncate is supported */
- ret = blk_truncate(blk, 0);
+ ret = blk_truncate(blk, 0, errp);
if (ret < 0) {
goto out;
}
diff --git a/block/raw-format.c b/block/raw-format.c
index 86fbc65..a800733 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -341,7 +341,7 @@ static int raw_truncate(BlockDriverState *bs, int64_t offset)
s->size = offset;
offset += s->offset;
- return bdrv_truncate(bs->file, offset);
+ return bdrv_truncate(bs->file, offset, NULL);
}
static int raw_media_changed(BlockDriverState *bs)
diff --git a/block/vdi.c b/block/vdi.c
index 9b4f70e..d12d9cd 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -832,9 +832,9 @@ static int vdi_create(const char *filename, QemuOpts *opts, Error **errp)
}
if (image_type == VDI_TYPE_STATIC) {
- ret = blk_truncate(blk, offset + blocks * block_size);
+ ret = blk_truncate(blk, offset + blocks * block_size, errp);
if (ret < 0) {
- error_setg(errp, "Failed to statically allocate %s", filename);
+ error_prepend(errp, "Failed to statically allocate %s", filename);
goto exit;
}
}
diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index 67a91c0..3f4c2aa 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -548,7 +548,7 @@ static int vhdx_log_flush(BlockDriverState *bs, BDRVVHDXState *s,
if (new_file_size % (1024*1024)) {
/* round up to nearest 1MB boundary */
new_file_size = ((new_file_size >> 20) + 1) << 20;
- bdrv_truncate(bs->file, new_file_size);
+ bdrv_truncate(bs->file, new_file_size, NULL);
}
}
qemu_vfree(desc_entries);
diff --git a/block/vhdx.c b/block/vhdx.c
index d25bcd9..e8fe3fb 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1171,7 +1171,7 @@ static int vhdx_allocate_block(BlockDriverState *bs, BDRVVHDXState *s,
/* per the spec, the address for a block is in units of 1MB */
*new_offset = ROUND_UP(*new_offset, 1024 * 1024);
- return bdrv_truncate(bs->file, *new_offset + s->block_size);
+ return bdrv_truncate(bs->file, *new_offset + s->block_size, NULL);
}
/*
@@ -1607,17 +1607,13 @@ static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
if (type == VHDX_TYPE_DYNAMIC) {
/* All zeroes, so we can just extend the file - the end of the BAT
* is the furthest thing we have written yet */
- ret = blk_truncate(blk, data_file_offset);
+ ret = blk_truncate(blk, data_file_offset, errp);
if (ret < 0) {
- error_setg_errno(errp, -ret,
- "Failed to resize the underlying file");
goto exit;
}
} else if (type == VHDX_TYPE_FIXED) {
- ret = blk_truncate(blk, data_file_offset + image_size);
+ ret = blk_truncate(blk, data_file_offset + image_size, errp);
if (ret < 0) {
- error_setg_errno(errp, -ret,
- "Failed to resize the underlying file");
goto exit;
}
} else {
diff --git a/block/vmdk.c b/block/vmdk.c
index a9bd22b..c61b9cc 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1714,10 +1714,7 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
blk_set_allow_write_beyond_eof(blk, true);
if (flat) {
- ret = blk_truncate(blk, filesize);
- if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not truncate file");
- }
+ ret = blk_truncate(blk, filesize, errp);
goto exit;
}
magic = cpu_to_be32(VMDK4_MAGIC);
@@ -1780,9 +1777,8 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
goto exit;
}
- ret = blk_truncate(blk, le64_to_cpu(header.grain_offset) << 9);
+ ret = blk_truncate(blk, le64_to_cpu(header.grain_offset) << 9, errp);
if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not truncate file");
goto exit;
}
@@ -2090,10 +2086,7 @@ static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
/* bdrv_pwrite write padding zeros to align to sector, we don't need that
* for description file */
if (desc_offset == 0) {
- ret = blk_truncate(new_blk, desc_len);
- if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not truncate file");
- }
+ ret = blk_truncate(new_blk, desc_len, errp);
}
exit:
if (new_blk) {
diff --git a/block/vpc.c b/block/vpc.c
index f591d4b..ecfee77 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -851,20 +851,21 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
}
static int create_fixed_disk(BlockBackend *blk, uint8_t *buf,
- int64_t total_size)
+ int64_t total_size, Error **errp)
{
int ret;
/* Add footer to total size */
total_size += HEADER_SIZE;
- ret = blk_truncate(blk, total_size);
+ ret = blk_truncate(blk, total_size, errp);
if (ret < 0) {
return ret;
}
ret = blk_pwrite(blk, total_size - HEADER_SIZE, buf, HEADER_SIZE, 0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Unable to write VHD header");
return ret;
}
@@ -996,11 +997,11 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
if (disk_type == VHD_DYNAMIC) {
ret = create_dynamic_disk(blk, buf, total_sectors);
+ if (ret < 0) {
+ error_setg(errp, "Unable to create or write VHD header");
+ }
} else {
- ret = create_fixed_disk(blk, buf, total_size);
- }
- if (ret < 0) {
- error_setg(errp, "Unable to create or write VHD header");
+ ret = create_fixed_disk(blk, buf, total_size, errp);
}
out:
diff --git a/blockdev.c b/blockdev.c
index 6428206..4d8cded 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2930,26 +2930,7 @@ void qmp_block_resize(bool has_device, const char *device,
/* complete all in-flight operations before resizing the device */
bdrv_drain_all();
- ret = blk_truncate(blk, size);
- switch (ret) {
- case 0:
- break;
- case -ENOMEDIUM:
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
- break;
- case -ENOTSUP:
- error_setg(errp, QERR_UNSUPPORTED);
- break;
- case -EACCES:
- error_setg(errp, "Device '%s' is read only", device);
- break;
- case -EBUSY:
- error_setg(errp, QERR_DEVICE_IN_USE, device);
- break;
- default:
- error_setg_errno(errp, -ret, "Could not resize");
- break;
- }
+ ret = blk_truncate(blk, size, errp);
out:
blk_unref(blk);
diff --git a/include/block/block.h b/include/block/block.h
index 144df0d..862eb56 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -294,7 +294,7 @@ BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
const char *backing_file);
int bdrv_get_backing_file_depth(BlockDriverState *bs);
void bdrv_refresh_filename(BlockDriverState *bs);
-int bdrv_truncate(BdrvChild *child, int64_t offset);
+int bdrv_truncate(BdrvChild *child, int64_t offset, Error **errp);
int64_t bdrv_nb_sectors(BlockDriverState *bs);
int64_t bdrv_getlength(BlockDriverState *bs);
int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 133e542..840ad61 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -225,7 +225,7 @@ int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int count, BdrvRequestFlags flags);
int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
int count);
-int blk_truncate(BlockBackend *blk, int64_t offset);
+int blk_truncate(BlockBackend *blk, int64_t offset, Error **errp);
int blk_pdiscard(BlockBackend *blk, int64_t offset, int count);
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
int64_t pos, int size);
diff --git a/qemu-img.c b/qemu-img.c
index 7044884..9eb8283 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3464,20 +3464,11 @@ static int img_resize(int argc, char **argv)
goto out;
}
- ret = blk_truncate(blk, total_size);
- switch (ret) {
- case 0:
+ ret = blk_truncate(blk, total_size, &err);
+ if (!ret) {
qprintf(quiet, "Image resized.\n");
- break;
- case -ENOTSUP:
- error_report("This image does not support resize");
- break;
- case -EACCES:
- error_report("Image is read-only");
- break;
- default:
- error_report("Error resizing image: %s", strerror(-ret));
- break;
+ } else {
+ error_report_err(err);
}
out:
blk_unref(blk);
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 312fc6d..21af9e6 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -1567,6 +1567,7 @@ static const cmdinfo_t flush_cmd = {
static int truncate_f(BlockBackend *blk, int argc, char **argv)
{
+ Error *local_err = NULL;
int64_t offset;
int ret;
@@ -1576,9 +1577,9 @@ static int truncate_f(BlockBackend *blk, int argc, char **argv)
return 0;
}
- ret = blk_truncate(blk, offset);
+ ret = blk_truncate(blk, offset, &local_err);
if (ret < 0) {
- printf("truncate: %s\n", strerror(-ret));
+ error_report_err(local_err);
return 0;
}
generated by cgit v1.1 at 2024-12-23 11:37:31 +0000