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-rw-r--r--block/blkdebug.c8
-rwxr-xr-xblock/blkreplay.c3
-rw-r--r--block/blkverify.c3
-rw-r--r--block/block-backend.c7
-rw-r--r--block/commit.c5
-rw-r--r--block/crypto.c5
-rw-r--r--block/file-posix.c21
-rw-r--r--block/file-win32.c7
-rw-r--r--block/gluster.c7
-rw-r--r--block/io.c16
-rw-r--r--block/iscsi.c6
-rw-r--r--block/mirror.c2
-rw-r--r--block/nfs.c12
-rw-r--r--block/parallels.c13
-rw-r--r--block/qcow.c6
-rw-r--r--block/qcow2-refcount.c5
-rw-r--r--block/qcow2.c31
-rw-r--r--block/qed.c8
-rw-r--r--block/raw-format.c6
-rw-r--r--block/rbd.c3
-rw-r--r--block/sheepdog.c14
-rw-r--r--block/vdi.c4
-rw-r--r--block/vhdx-log.c2
-rw-r--r--block/vhdx.c25
-rw-r--r--block/vmdk.c13
-rw-r--r--block/vpc.c13
26 files changed, 137 insertions, 108 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 67e8024..d2a7561 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -389,14 +389,12 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
} else if (align) {
error_setg(errp, "Invalid alignment");
ret = -EINVAL;
- goto fail_unref;
+ goto out;
}
ret = 0;
goto out;
-fail_unref:
- bdrv_unref_child(bs, bs->file);
out:
if (ret < 0) {
g_free(s->config_file);
@@ -661,9 +659,9 @@ static int64_t blkdebug_getlength(BlockDriverState *bs)
return bdrv_getlength(bs->file->bs);
}
-static int blkdebug_truncate(BlockDriverState *bs, int64_t offset)
+static int blkdebug_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
- return bdrv_truncate(bs->file, offset);
+ return bdrv_truncate(bs->file, offset, errp);
}
static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
diff --git a/block/blkreplay.c b/block/blkreplay.c
index e110211..6aa5fd4 100755
--- a/block/blkreplay.c
+++ b/block/blkreplay.c
@@ -37,9 +37,6 @@ static int blkreplay_open(BlockDriverState *bs, QDict *options, int flags,
ret = 0;
fail:
- if (ret < 0) {
- bdrv_unref_child(bs, bs->file);
- }
return ret;
}
diff --git a/block/blkverify.c b/block/blkverify.c
index 9a1e21c..af23281 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -142,9 +142,6 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
ret = 0;
fail:
- if (ret < 0) {
- bdrv_unref_child(bs, bs->file);
- }
qemu_opts_del(opts);
return ret;
}
diff --git a/block/block-backend.c b/block/block-backend.c
index 7405024..f5bf13e 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -420,7 +420,7 @@ void monitor_remove_blk(BlockBackend *blk)
* Return @blk's name, a non-null string.
* Returns an empty string iff @blk is not referenced by the monitor.
*/
-const char *blk_name(BlockBackend *blk)
+const char *blk_name(const BlockBackend *blk)
{
return blk->name ?: "";
}
@@ -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..6828180 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -381,7 +381,8 @@ static int block_crypto_create_generic(QCryptoBlockFormat format,
return ret;
}
-static int block_crypto_truncate(BlockDriverState *bs, int64_t offset)
+static int block_crypto_truncate(BlockDriverState *bs, int64_t offset,
+ Error **errp)
{
BlockCrypto *crypto = bs->opaque;
size_t payload_offset =
@@ -389,7 +390,7 @@ 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, errp);
}
static void block_crypto_close(BlockDriverState *bs)
diff --git a/block/file-posix.c b/block/file-posix.c
index 0c48968..1941fb6 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -25,8 +25,6 @@
#include "qapi/error.h"
#include "qemu/cutils.h"
#include "qemu/error-report.h"
-#include "qemu/timer.h"
-#include "qemu/log.h"
#include "block/block_int.h"
#include "qemu/module.h"
#include "trace.h"
@@ -1409,24 +1407,31 @@ static void raw_close(BlockDriverState *bs)
}
}
-static int raw_truncate(BlockDriverState *bs, int64_t offset)
+static int raw_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVRawState *s = bs->opaque;
struct stat st;
+ int ret;
if (fstat(s->fd, &st)) {
- return -errno;
+ ret = -errno;
+ error_setg_errno(errp, -ret, "Failed to fstat() the file");
+ return ret;
}
if (S_ISREG(st.st_mode)) {
if (ftruncate(s->fd, offset) < 0) {
- return -errno;
+ ret = -errno;
+ error_setg_errno(errp, -ret, "Failed to resize the file");
+ return ret;
}
} else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)) {
- if (offset > raw_getlength(bs)) {
- return -EINVAL;
- }
+ if (offset > raw_getlength(bs)) {
+ error_setg(errp, "Cannot grow device files");
+ return -EINVAL;
+ }
} else {
+ error_setg(errp, "Resizing this file is not supported");
return -ENOTSUP;
}
diff --git a/block/file-win32.c b/block/file-win32.c
index 800fabd..7872e00 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -24,7 +24,6 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/cutils.h"
-#include "qemu/timer.h"
#include "block/block_int.h"
#include "qemu/module.h"
#include "block/raw-aio.h"
@@ -461,7 +460,7 @@ static void raw_close(BlockDriverState *bs)
}
}
-static int raw_truncate(BlockDriverState *bs, int64_t offset)
+static int raw_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVRawState *s = bs->opaque;
LONG low, high;
@@ -476,11 +475,11 @@ static int raw_truncate(BlockDriverState *bs, int64_t offset)
*/
dwPtrLow = SetFilePointer(s->hfile, low, &high, FILE_BEGIN);
if (dwPtrLow == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) {
- fprintf(stderr, "SetFilePointer error: %lu\n", GetLastError());
+ error_setg_win32(errp, GetLastError(), "SetFilePointer error");
return -EIO;
}
if (SetEndOfFile(s->hfile) == 0) {
- fprintf(stderr, "SetEndOfFile error: %lu\n", GetLastError());
+ error_setg_win32(errp, GetLastError(), "SetEndOfFile error");
return -EIO;
}
return 0;
diff --git a/block/gluster.c b/block/gluster.c
index cf29b5f..1d4e2f7 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -1092,14 +1092,17 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
return acb.ret;
}
-static int qemu_gluster_truncate(BlockDriverState *bs, int64_t offset)
+static int qemu_gluster_truncate(BlockDriverState *bs, int64_t offset,
+ Error **errp)
{
int ret;
BDRVGlusterState *s = bs->opaque;
ret = glfs_ftruncate(s->fd, offset);
if (ret < 0) {
- return -errno;
+ ret = -errno;
+ error_setg_errno(errp, -ret, "Failed to truncate file");
+ return ret;
}
return 0;
diff --git a/block/io.c b/block/io.c
index a7142e0..40bd94f 100644
--- a/block/io.c
+++ b/block/io.c
@@ -1362,16 +1362,8 @@ static int coroutine_fn bdrv_aligned_pwritev(BdrvChild *child,
assert(!waited || !req->serialising);
assert(req->overlap_offset <= offset);
assert(offset + bytes <= req->overlap_offset + req->overlap_bytes);
- /* FIXME: Block migration uses the BlockBackend of the guest device at a
- * point when it has not yet taken write permissions. This will be
- * fixed by a future patch, but for now we have to bypass this
- * assertion for block migration to work. */
- // assert(child->perm & BLK_PERM_WRITE);
- /* FIXME: Because of the above, we also cannot guarantee that all format
- * BDS take the BLK_PERM_RESIZE permission on their file BDS, since
- * they are not obligated to do so if they do not have any parent
- * that has taken the permission to write to them. */
- // assert(end_sector <= bs->total_sectors || child->perm & BLK_PERM_RESIZE);
+ assert(child->perm & BLK_PERM_WRITE);
+ assert(end_sector <= bs->total_sectors || child->perm & BLK_PERM_RESIZE);
ret = notifier_with_return_list_notify(&bs->before_write_notifiers, req);
@@ -1452,7 +1444,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BdrvChild *child,
int ret = 0;
head_padding_bytes = offset & (align - 1);
- tail_padding_bytes = align - ((offset + bytes) & (align - 1));
+ tail_padding_bytes = (align - (offset + bytes)) & (align - 1);
assert(flags & BDRV_REQ_ZERO_WRITE);
@@ -2308,7 +2300,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
bdrv_inc_in_flight(bs);
- if (!bs || !bdrv_is_inserted(bs) || bdrv_is_read_only(bs) ||
+ if (!bdrv_is_inserted(bs) || bdrv_is_read_only(bs) ||
bdrv_is_sg(bs)) {
goto early_exit;
}
diff --git a/block/iscsi.c b/block/iscsi.c
index 42fb0b0..5daa201 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2059,22 +2059,24 @@ static void iscsi_reopen_commit(BDRVReopenState *reopen_state)
}
}
-static int iscsi_truncate(BlockDriverState *bs, int64_t offset)
+static int iscsi_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
IscsiLun *iscsilun = bs->opaque;
Error *local_err = NULL;
if (iscsilun->type != TYPE_DISK) {
+ error_setg(errp, "Cannot resize non-disk iSCSI devices");
return -ENOTSUP;
}
iscsi_readcapacity_sync(iscsilun, &local_err);
if (local_err != NULL) {
- error_free(local_err);
+ error_propagate(errp, local_err);
return -EIO;
}
if (offset > iscsi_getlength(bs)) {
+ error_setg(errp, "Cannot grow iSCSI devices");
return -EINVAL;
}
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/nfs.c b/block/nfs.c
index 6541dec..76572ae 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -764,10 +764,18 @@ static int64_t nfs_get_allocated_file_size(BlockDriverState *bs)
return (task.ret < 0 ? task.ret : st.st_blocks * 512);
}
-static int nfs_file_truncate(BlockDriverState *bs, int64_t offset)
+static int nfs_file_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
NFSClient *client = bs->opaque;
- return nfs_ftruncate(client->context, client->fh, offset);
+ int ret;
+
+ ret = nfs_ftruncate(client->context, client->fh, offset);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to truncate file");
+ return ret;
+ }
+
+ return 0;
}
/* Note that this will not re-establish a connection with the NFS server
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..5c1573c 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;
}
@@ -2515,7 +2515,12 @@ static coroutine_fn int qcow2_co_pdiscard(BlockDriverState *bs,
if (!QEMU_IS_ALIGNED(offset | count, s->cluster_size)) {
assert(count < s->cluster_size);
- return -ENOTSUP;
+ /* Ignore partial clusters, except for the special case of the
+ * complete partial cluster at the end of an unaligned file */
+ if (!QEMU_IS_ALIGNED(offset, s->cluster_size) ||
+ offset + count != bs->total_sectors * BDRV_SECTOR_SIZE) {
+ return -ENOTSUP;
+ }
}
qemu_co_mutex_lock(&s->lock);
@@ -2525,32 +2530,33 @@ static coroutine_fn int qcow2_co_pdiscard(BlockDriverState *bs,
return ret;
}
-static int qcow2_truncate(BlockDriverState *bs, int64_t offset)
+static int qcow2_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVQcow2State *s = bs->opaque;
int64_t new_l1_size;
int ret;
if (offset & 511) {
- error_report("The new size must be a multiple of 512");
+ error_setg(errp, "The new size must be a multiple of 512");
return -EINVAL;
}
/* cannot proceed if image has snapshots */
if (s->nb_snapshots) {
- error_report("Can't resize an image which has snapshots");
+ error_setg(errp, "Can't resize an image which has snapshots");
return -ENOTSUP;
}
/* shrinking is currently not supported */
if (offset < bs->total_sectors * 512) {
- error_report("qcow2 doesn't support shrinking images yet");
+ error_setg(errp, "qcow2 doesn't support shrinking images yet");
return -ENOTSUP;
}
new_l1_size = size_to_l1(s, offset);
ret = qcow2_grow_l1_table(bs, new_l1_size, true);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to grow the L1 table");
return ret;
}
@@ -2559,6 +2565,7 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset)
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
&offset, sizeof(uint64_t));
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to update the image size");
return ret;
}
@@ -2584,7 +2591,7 @@ 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 +2681,7 @@ 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 +2806,10 @@ 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 +3283,10 @@ 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..fd76817 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;
}
@@ -1518,7 +1518,7 @@ static int coroutine_fn bdrv_qed_co_pwrite_zeroes(BlockDriverState *bs,
return cb.ret;
}
-static int bdrv_qed_truncate(BlockDriverState *bs, int64_t offset)
+static int bdrv_qed_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVQEDState *s = bs->opaque;
uint64_t old_image_size;
@@ -1526,11 +1526,12 @@ static int bdrv_qed_truncate(BlockDriverState *bs, int64_t offset)
if (!qed_is_image_size_valid(offset, s->header.cluster_size,
s->header.table_size)) {
+ error_setg(errp, "Invalid image size specified");
return -EINVAL;
}
- /* Shrinking is currently not supported */
if ((uint64_t)offset < s->header.image_size) {
+ error_setg(errp, "Shrinking images is currently not supported");
return -ENOTSUP;
}
@@ -1539,6 +1540,7 @@ static int bdrv_qed_truncate(BlockDriverState *bs, int64_t offset)
ret = qed_write_header_sync(s);
if (ret < 0) {
s->header.image_size = old_image_size;
+ error_setg_errno(errp, -ret, "Failed to update the image size");
}
return ret;
}
diff --git a/block/raw-format.c b/block/raw-format.c
index 86fbc65..36e6503 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -327,21 +327,23 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp)
}
}
-static int raw_truncate(BlockDriverState *bs, int64_t offset)
+static int raw_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVRawState *s = bs->opaque;
if (s->has_size) {
+ error_setg(errp, "Cannot resize fixed-size raw disks");
return -ENOTSUP;
}
if (INT64_MAX - offset < s->offset) {
+ error_setg(errp, "Disk size too large for the chosen offset");
return -EINVAL;
}
s->size = offset;
offset += s->offset;
- return bdrv_truncate(bs->file, offset);
+ return bdrv_truncate(bs->file, offset, errp);
}
static int raw_media_changed(BlockDriverState *bs)
diff --git a/block/rbd.c b/block/rbd.c
index 6471f4f..fbf3059 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -916,13 +916,14 @@ static int64_t qemu_rbd_getlength(BlockDriverState *bs)
return info.size;
}
-static int qemu_rbd_truncate(BlockDriverState *bs, int64_t offset)
+static int qemu_rbd_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
BDRVRBDState *s = bs->opaque;
int r;
r = rbd_resize(s->image, offset);
if (r < 0) {
+ error_setg_errno(errp, -r, "Failed to resize file");
return r;
}
diff --git a/block/sheepdog.c b/block/sheepdog.c
index b2a5998..fe8fd92 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -2159,9 +2159,8 @@ static int64_t sd_getlength(BlockDriverState *bs)
return s->inode.vdi_size;
}
-static int sd_truncate(BlockDriverState *bs, int64_t offset)
+static int sd_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
{
- Error *local_err = NULL;
BDRVSheepdogState *s = bs->opaque;
int ret, fd;
unsigned int datalen;
@@ -2169,16 +2168,15 @@ static int sd_truncate(BlockDriverState *bs, int64_t offset)
max_vdi_size = (UINT64_C(1) << s->inode.block_size_shift) * MAX_DATA_OBJS;
if (offset < s->inode.vdi_size) {
- error_report("shrinking is not supported");
+ error_setg(errp, "shrinking is not supported");
return -EINVAL;
} else if (offset > max_vdi_size) {
- error_report("too big image size");
+ error_setg(errp, "too big image size");
return -EINVAL;
}
- fd = connect_to_sdog(s, &local_err);
+ fd = connect_to_sdog(s, errp);
if (fd < 0) {
- error_report_err(local_err);
return fd;
}
@@ -2191,7 +2189,7 @@ static int sd_truncate(BlockDriverState *bs, int64_t offset)
close(fd);
if (ret < 0) {
- error_report("failed to update an inode.");
+ error_setg_errno(errp, -ret, "failed to update an inode");
}
return ret;
@@ -2456,7 +2454,7 @@ static coroutine_fn int sd_co_writev(BlockDriverState *bs, int64_t sector_num,
BDRVSheepdogState *s = bs->opaque;
if (offset > s->inode.vdi_size) {
- ret = sd_truncate(bs, offset);
+ ret = sd_truncate(bs, offset, NULL);
if (ret < 0) {
return ret;
}
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 052a753..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);
}
/*
@@ -1586,7 +1586,7 @@ exit:
static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
uint64_t image_size, VHDXImageType type,
bool use_zero_blocks, uint64_t file_offset,
- uint32_t length)
+ uint32_t length, Error **errp)
{
int ret = 0;
uint64_t data_file_offset;
@@ -1607,16 +1607,17 @@ 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) {
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) {
goto exit;
}
} else {
+ error_setg(errp, "Unsupported image type");
ret = -ENOTSUP;
goto exit;
}
@@ -1627,6 +1628,7 @@ static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
/* for a fixed file, the default BAT entry is not zero */
s->bat = g_try_malloc0(length);
if (length && s->bat == NULL) {
+ error_setg(errp, "Failed to allocate memory for the BAT");
ret = -ENOMEM;
goto exit;
}
@@ -1646,6 +1648,7 @@ static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
}
ret = blk_pwrite(blk, file_offset, s->bat, length, 0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write the BAT");
goto exit;
}
}
@@ -1671,7 +1674,8 @@ static int vhdx_create_new_region_table(BlockBackend *blk,
uint32_t log_size,
bool use_zero_blocks,
VHDXImageType type,
- uint64_t *metadata_offset)
+ uint64_t *metadata_offset,
+ Error **errp)
{
int ret = 0;
uint32_t offset = 0;
@@ -1740,7 +1744,7 @@ static int vhdx_create_new_region_table(BlockBackend *blk,
/* The region table gives us the data we need to create the BAT,
* so do that now */
ret = vhdx_create_bat(blk, s, image_size, type, use_zero_blocks,
- bat_file_offset, bat_length);
+ bat_file_offset, bat_length, errp);
if (ret < 0) {
goto exit;
}
@@ -1749,12 +1753,14 @@ static int vhdx_create_new_region_table(BlockBackend *blk,
ret = blk_pwrite(blk, VHDX_REGION_TABLE_OFFSET, buffer,
VHDX_HEADER_BLOCK_SIZE, 0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write first region table");
goto exit;
}
ret = blk_pwrite(blk, VHDX_REGION_TABLE2_OFFSET, buffer,
VHDX_HEADER_BLOCK_SIZE, 0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write second region table");
goto exit;
}
@@ -1825,6 +1831,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
ret = -ENOTSUP;
goto exit;
} else {
+ error_setg(errp, "Invalid subformat '%s'", type);
ret = -EINVAL;
goto exit;
}
@@ -1879,12 +1886,14 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
ret = blk_pwrite(blk, VHDX_FILE_ID_OFFSET, &signature, sizeof(signature),
0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write file signature");
goto delete_and_exit;
}
if (creator) {
ret = blk_pwrite(blk, VHDX_FILE_ID_OFFSET + sizeof(signature),
creator, creator_items * sizeof(gunichar2), 0);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write creator field");
goto delete_and_exit;
}
}
@@ -1893,13 +1902,14 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
/* Creates (B),(C) */
ret = vhdx_create_new_headers(blk, image_size, log_size);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to write image headers");
goto delete_and_exit;
}
/* Creates (D),(E),(G) explicitly. (F) created as by-product */
ret = vhdx_create_new_region_table(blk, image_size, block_size, 512,
log_size, use_zero_blocks, image_type,
- &metadata_offset);
+ &metadata_offset, errp);
if (ret < 0) {
goto delete_and_exit;
}
@@ -1908,6 +1918,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
ret = vhdx_create_new_metadata(blk, image_size, block_size, 512,
metadata_offset, image_type);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to initialize metadata");
goto delete_and_exit;
}
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:
generated by cgit v1.1 at 2024-08-28 06:15:18 +0000