*/
#include "qemu/osdep.h"
+#include "block/block-io.h"
#include "qapi/error.h"
#include "qcow2.h"
#include "qemu/range.h"
ret = -ENOMEM;
goto fail;
}
- BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_LOAD);
+ BLKDBG_CO_EVENT(bs->file, BLKDBG_REFTABLE_LOAD);
ret = bdrv_co_pread(bs->file, s->refcount_table_offset,
refcount_table_size2, s->refcount_table, 0);
if (ret < 0) {
return offset;
}
-int64_t qcow2_alloc_clusters_at(BlockDriverState *bs, uint64_t offset,
- int64_t nb_clusters)
+int64_t coroutine_fn qcow2_alloc_clusters_at(BlockDriverState *bs, uint64_t offset,
+ int64_t nb_clusters)
{
BDRVQcow2State *s = bs->opaque;
uint64_t cluster_index, refcount;
/* only used to allocate compressed sectors. We try to allocate
contiguous sectors. size must be <= cluster_size */
-int64_t qcow2_alloc_bytes(BlockDriverState *bs, int size)
+int64_t coroutine_fn GRAPH_RDLOCK qcow2_alloc_bytes(BlockDriverState *bs, int size)
{
BDRVQcow2State *s = bs->opaque;
int64_t offset;
size_t free_in_cluster;
int ret;
- BLKDBG_EVENT(bs->file, BLKDBG_CLUSTER_ALLOC_BYTES);
+ BLKDBG_CO_EVENT(bs->file, BLKDBG_CLUSTER_ALLOC_BYTES);
assert(size > 0 && size <= s->cluster_size);
assert(!s->free_byte_offset || offset_into_cluster(s, s->free_byte_offset));
*
* Modifies the number of errors in res.
*/
-int qcow2_inc_refcounts_imrt(BlockDriverState *bs, BdrvCheckResult *res,
- void **refcount_table,
- int64_t *refcount_table_size,
- int64_t offset, int64_t size)
+int coroutine_fn GRAPH_RDLOCK
+qcow2_inc_refcounts_imrt(BlockDriverState *bs, BdrvCheckResult *res,
+ void **refcount_table,
+ int64_t *refcount_table_size,
+ int64_t offset, int64_t size)
{
BDRVQcow2State *s = bs->opaque;
uint64_t start, last, cluster_offset, k, refcount;
return 0;
}
- file_len = bdrv_getlength(bs->file->bs);
+ file_len = bdrv_co_getlength(bs->file->bs);
if (file_len < 0) {
return file_len;
}
*
* On failure in-memory @l2_table may be modified.
*/
-static int fix_l2_entry_by_zero(BlockDriverState *bs, BdrvCheckResult *res,
- uint64_t l2_offset,
- uint64_t *l2_table, int l2_index, bool active,
- bool *metadata_overlap)
+static int coroutine_fn GRAPH_RDLOCK
+fix_l2_entry_by_zero(BlockDriverState *bs, BdrvCheckResult *res,
+ uint64_t l2_offset, uint64_t *l2_table,
+ int l2_index, bool active,
+ bool *metadata_overlap)
{
BDRVQcow2State *s = bs->opaque;
int ret;
goto fail;
}
- ret = bdrv_pwrite_sync(bs->file, l2e_offset, l2_entry_size(s),
- &l2_table[idx], 0);
+ ret = bdrv_co_pwrite_sync(bs->file, l2e_offset, l2_entry_size(s),
+ &l2_table[idx], 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Failed to overwrite L2 "
"table entry: %s\n", strerror(-ret));
* Returns the number of errors found by the checks or -errno if an internal
* error occurred.
*/
-static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res,
- void **refcount_table,
- int64_t *refcount_table_size, int64_t l2_offset,
- int flags, BdrvCheckMode fix, bool active)
+static int coroutine_fn GRAPH_RDLOCK
+check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res,
+ void **refcount_table,
+ int64_t *refcount_table_size, int64_t l2_offset,
+ int flags, BdrvCheckMode fix, bool active)
{
BDRVQcow2State *s = bs->opaque;
uint64_t l2_entry, l2_bitmap;
bool metadata_overlap;
/* Read L2 table from disk */
- ret = bdrv_pread(bs->file, l2_offset, l2_size_bytes, l2_table, 0);
+ ret = bdrv_co_pread(bs->file, l2_offset, l2_size_bytes, l2_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n");
res->check_errors++;
* Returns the number of errors found by the checks or -errno if an internal
* error occurred.
*/
-static int check_refcounts_l1(BlockDriverState *bs,
- BdrvCheckResult *res,
- void **refcount_table,
- int64_t *refcount_table_size,
- int64_t l1_table_offset, int l1_size,
- int flags, BdrvCheckMode fix, bool active)
+static int coroutine_fn GRAPH_RDLOCK
+check_refcounts_l1(BlockDriverState *bs, BdrvCheckResult *res,
+ void **refcount_table, int64_t *refcount_table_size,
+ int64_t l1_table_offset, int l1_size,
+ int flags, BdrvCheckMode fix, bool active)
{
BDRVQcow2State *s = bs->opaque;
size_t l1_size_bytes = l1_size * L1E_SIZE;
}
/* Read L1 table entries from disk */
- ret = bdrv_pread(bs->file, l1_table_offset, l1_size_bytes, l1_table, 0);
+ ret = bdrv_co_pread(bs->file, l1_table_offset, l1_size_bytes, l1_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l1\n");
res->check_errors++;
* have been already detected and sufficiently signaled by the calling function
* (qcow2_check_refcounts) by the time this function is called).
*/
-static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
- BdrvCheckMode fix)
+static int coroutine_fn GRAPH_RDLOCK
+check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix)
{
BDRVQcow2State *s = bs->opaque;
uint64_t *l2_table = qemu_blockalign(bs, s->cluster_size);
}
}
- ret = bdrv_pread(bs->file, l2_offset, s->l2_size * l2_entry_size(s),
- l2_table, 0);
+ ret = bdrv_co_pread(bs->file, l2_offset, s->l2_size * l2_entry_size(s),
+ l2_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not read L2 table: %s\n",
strerror(-ret));
goto fail;
}
- ret = bdrv_pwrite(bs->file, l2_offset, s->cluster_size, l2_table,
- 0);
+ ret = bdrv_co_pwrite(bs->file, l2_offset, s->cluster_size, l2_table, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not write L2 table: %s\n",
strerror(-ret));
* Checks consistency of refblocks and accounts for each refblock in
* *refcount_table.
*/
-static int check_refblocks(BlockDriverState *bs, BdrvCheckResult *res,
- BdrvCheckMode fix, bool *rebuild,
- void **refcount_table, int64_t *nb_clusters)
+static int coroutine_fn GRAPH_RDLOCK
+check_refblocks(BlockDriverState *bs, BdrvCheckResult *res,
+ BdrvCheckMode fix, bool *rebuild,
+ void **refcount_table, int64_t *nb_clusters)
{
BDRVQcow2State *s = bs->opaque;
int64_t i, size;
goto resize_fail;
}
- ret = bdrv_truncate(bs->file, offset + s->cluster_size, false,
- PREALLOC_MODE_OFF, 0, &local_err);
+ ret = bdrv_co_truncate(bs->file, offset + s->cluster_size, false,
+ PREALLOC_MODE_OFF, 0, &local_err);
if (ret < 0) {
error_report_err(local_err);
goto resize_fail;
}
- size = bdrv_getlength(bs->file->bs);
+ size = bdrv_co_getlength(bs->file->bs);
if (size < 0) {
ret = size;
goto resize_fail;
/*
* Calculates an in-memory refcount table.
*/
-static int calculate_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
- BdrvCheckMode fix, bool *rebuild,
- void **refcount_table, int64_t *nb_clusters)
+static int coroutine_fn GRAPH_RDLOCK
+calculate_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
+ BdrvCheckMode fix, bool *rebuild,
+ void **refcount_table, int64_t *nb_clusters)
{
BDRVQcow2State *s = bs->opaque;
int64_t i;
* Compares the actual reference count for each cluster in the image against the
* refcount as reported by the refcount structures on-disk.
*/
-static void compare_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
- BdrvCheckMode fix, bool *rebuild,
- int64_t *highest_cluster,
- void *refcount_table, int64_t nb_clusters)
+static void coroutine_fn
+compare_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
+ BdrvCheckMode fix, bool *rebuild,
+ int64_t *highest_cluster,
+ void *refcount_table, int64_t nb_clusters)
{
BDRVQcow2State *s = bs->opaque;
int64_t i;
* Return whether the on-disk reftable array was resized (true/false),
* or -errno on error.
*/
-static int rebuild_refcounts_write_refblocks(
+static int coroutine_fn GRAPH_RDLOCK
+rebuild_refcounts_write_refblocks(
BlockDriverState *bs, void **refcount_table, int64_t *nb_clusters,
int64_t first_cluster, int64_t end_cluster,
uint64_t **on_disk_reftable_ptr, uint32_t *on_disk_reftable_entries_ptr,
on_disk_refblock = (void *)((char *) *refcount_table +
refblock_index * s->cluster_size);
- ret = bdrv_pwrite(bs->file, refblock_offset, s->cluster_size,
- on_disk_refblock, 0);
+ ret = bdrv_co_pwrite(bs->file, refblock_offset, s->cluster_size,
+ on_disk_refblock, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing refblock");
return ret;
* On success, the old refcount structure is leaked (it will be covered by the
* new refcount structure).
*/
-static int rebuild_refcount_structure(BlockDriverState *bs,
- BdrvCheckResult *res,
- void **refcount_table,
- int64_t *nb_clusters,
- Error **errp)
+static int coroutine_fn GRAPH_RDLOCK
+rebuild_refcount_structure(BlockDriverState *bs, BdrvCheckResult *res,
+ void **refcount_table, int64_t *nb_clusters,
+ Error **errp)
{
BDRVQcow2State *s = bs->opaque;
int64_t reftable_offset = -1;
* repeat all this until the reftable stops growing.
*
* (This loop will terminate, because with every cluster the
- * reftable grows, it can accomodate a multitude of more refcounts,
+ * reftable grows, it can accommodate a multitude of more refcounts,
* so that at some point this must be able to cover the reftable
* and all refblocks describing it.)
*
}
assert(reftable_length < INT_MAX);
- ret = bdrv_pwrite(bs->file, reftable_offset, reftable_length,
- on_disk_reftable, 0);
+ ret = bdrv_co_pwrite(bs->file, reftable_offset, reftable_length,
+ on_disk_reftable, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR writing reftable");
goto fail;
reftable_offset_and_clusters.reftable_offset = cpu_to_be64(reftable_offset);
reftable_offset_and_clusters.reftable_clusters =
cpu_to_be32(reftable_clusters);
- ret = bdrv_pwrite_sync(bs->file,
- offsetof(QCowHeader, refcount_table_offset),
- sizeof(reftable_offset_and_clusters),
- &reftable_offset_and_clusters, 0);
+ ret = bdrv_co_pwrite_sync(bs->file,
+ offsetof(QCowHeader, refcount_table_offset),
+ sizeof(reftable_offset_and_clusters),
+ &reftable_offset_and_clusters, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR setting reftable");
goto fail;
* Returns 0 if no errors are found, the number of errors in case the image is
* detected as corrupted, and -errno when an internal error occurred.
*/
-int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
- BdrvCheckMode fix)
+int coroutine_fn GRAPH_RDLOCK
+qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix)
{
BDRVQcow2State *s = bs->opaque;
BdrvCheckResult pre_compare_res;
bool rebuild = false;
int ret;
- size = bdrv_getlength(bs->file->bs);
+ size = bdrv_co_getlength(bs->file->bs);
if (size < 0) {
res->check_errors++;
return size;
return ret;
}
-static int64_t get_refblock_offset(BlockDriverState *bs, uint64_t offset)
+static int64_t coroutine_fn get_refblock_offset(BlockDriverState *bs,
+ uint64_t offset)
{
BDRVQcow2State *s = bs->opaque;
uint32_t index = offset_to_reftable_index(s, offset);
return ret;
}
-int64_t qcow2_get_last_cluster(BlockDriverState *bs, int64_t size)
+int64_t coroutine_fn qcow2_get_last_cluster(BlockDriverState *bs, int64_t size)
{
BDRVQcow2State *s = bs->opaque;
int64_t i;
return -EIO;
}
-int coroutine_fn qcow2_detect_metadata_preallocation(BlockDriverState *bs)
+int coroutine_fn GRAPH_RDLOCK
+qcow2_detect_metadata_preallocation(BlockDriverState *bs)
{
BDRVQcow2State *s = bs->opaque;
int64_t i, end_cluster, cluster_count = 0, threshold;
qemu_co_mutex_assert_locked(&s->lock);
- file_length = bdrv_getlength(bs->file->bs);
+ file_length = bdrv_co_getlength(bs->file->bs);
if (file_length < 0) {
return file_length;
}
- real_allocation = bdrv_get_allocated_file_size(bs->file->bs);
+ real_allocation = bdrv_co_get_allocated_file_size(bs->file->bs);
if (real_allocation < 0) {
return real_allocation;
}
projects / mirror_qemu.git / blobdiff