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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Browse Source 
Block layer patches

# gpg: Signature made Fri 16 Oct 2015 14:36:50 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (29 commits)
  blkdebug: Don't confuse image as backing file
  qcow2: Remove forward declaration of QCowAIOCB
  qemu-nbd: always compile in --aio=MODE option
  blockdev: always compile in -drive aio= parsing
  raw-posix: warn about BDRV_O_NATIVE_AIO if libaio is unavailable
  block: auto-generated node-names
  util - add automated ID generation utility
  blkverify: Fix BDS leak in .bdrv_open error path
  block: Allow bdrv_unref_child(bs, NULL)
  block: Remove bdrv_swap()
  block: Add and use bdrv_replace_in_backing_chain()
  blockjob: Store device name at job creation
  block: Implement bdrv_append() without bdrv_swap()
  block: Introduce parents list
  block-backend: Add blk_set_bs()
  block/io: Make bdrv_requests_pending() public
  block: Split bdrv_move_feature_fields()
  block: Manage backing file references in bdrv_set_backing_hd()
  block: Convert bs->backing_hd to BdrvChild
  block: Remove bdrv_open_image()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
2015-10-17 22:14:52 +01:00
parent 6d57410a79 6b826af7b0
commit c737c7a608
56 changed files with 963 additions and 886 deletions
Download Patch File Download Diff File Expand all files Collapse all files
block.c
+207 -311
View File
File diff suppressed because it is too large Load Diff
block/blkdebug.c
+18 -16
View File
@@ -426,11 +426,11 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
/* Set initial state */
s->state = 1;
/* Open the backing file */
assert(bs->file == NULL);
ret = bdrv_open_image(&bs->file, qemu_opt_get(opts, "x-image"), options, "image",
bs, &child_file, false, &local_err);
if (ret < 0) {
/* Open the image file */
bs->file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options, "image",
bs, &child_file, false, &local_err);
if (local_err) {
ret = -EINVAL;
error_propagate(errp, local_err);
goto out;
}
@@ -449,7 +449,7 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags,
goto out;
fail_unref:
bdrv_unref(bs->file);
bdrv_unref_child(bs, bs->file);
out:
qemu_opts_del(opts);
return ret;
@@ -510,7 +510,8 @@ static BlockAIOCB *blkdebug_aio_readv(BlockDriverState *bs,
return inject_error(bs, cb, opaque, rule);
}
return bdrv_aio_readv(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
return bdrv_aio_readv(bs->file->bs, sector_num, qiov, nb_sectors,
cb, opaque);
}
static BlockAIOCB *blkdebug_aio_writev(BlockDriverState *bs,
@@ -532,7 +533,8 @@ static BlockAIOCB *blkdebug_aio_writev(BlockDriverState *bs,
return inject_error(bs, cb, opaque, rule);
}
return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
return bdrv_aio_writev(bs->file->bs, sector_num, qiov, nb_sectors,
cb, opaque);
}
static BlockAIOCB *blkdebug_aio_flush(BlockDriverState *bs,
@@ -551,7 +553,7 @@ static BlockAIOCB *blkdebug_aio_flush(BlockDriverState *bs,
return inject_error(bs, cb, opaque, rule);
}
return bdrv_aio_flush(bs->file, cb, opaque);
return bdrv_aio_flush(bs->file->bs, cb, opaque);
}
@@ -716,12 +718,12 @@ static bool blkdebug_debug_is_suspended(BlockDriverState *bs, const char *tag)
static int64_t blkdebug_getlength(BlockDriverState *bs)
{
return bdrv_getlength(bs->file);
return bdrv_getlength(bs->file->bs);
}
static int blkdebug_truncate(BlockDriverState *bs, int64_t offset)
{
return bdrv_truncate(bs->file, offset);
return bdrv_truncate(bs->file->bs, offset);
}
static void blkdebug_refresh_filename(BlockDriverState *bs)
@@ -741,24 +743,24 @@ static void blkdebug_refresh_filename(BlockDriverState *bs)
}
}
if (force_json && !bs->file->full_open_options) {
if (force_json && !bs->file->bs->full_open_options) {
/* The config file cannot be recreated, so creating a plain filename
* is impossible */
return;
}
if (!force_json && bs->file->exact_filename[0]) {
if (!force_json && bs->file->bs->exact_filename[0]) {
snprintf(bs->exact_filename, sizeof(bs->exact_filename),
"blkdebug:%s:%s",
qdict_get_try_str(bs->options, "config") ?: "",
bs->file->exact_filename);
bs->file->bs->exact_filename);
}
opts = qdict_new();
qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkdebug")));
QINCREF(bs->file->full_open_options);
qdict_put_obj(opts, "image", QOBJECT(bs->file->full_open_options));
QINCREF(bs->file->bs->full_open_options);
qdict_put_obj(opts, "image", QOBJECT(bs->file->bs->full_open_options));
for (e = qdict_first(bs->options); e; e = qdict_next(bs->options, e)) {
if (strcmp(qdict_entry_key(e), "x-image") &&
block/blkverify.c
+40 -31
View File
@@ -14,7 +14,7 @@
#include "qapi/qmp/qstring.h"
typedef struct {
BlockDriverState *test_file;
BdrvChild *test_file;
} BDRVBlkverifyState;
typedef struct BlkverifyAIOCB BlkverifyAIOCB;
@@ -123,26 +123,29 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags,
}
/* Open the raw file */
assert(bs->file == NULL);
ret = bdrv_open_image(&bs->file, qemu_opt_get(opts, "x-raw"), options,
"raw", bs, &child_file, false, &local_err);
if (ret < 0) {
bs->file = bdrv_open_child(qemu_opt_get(opts, "x-raw"), options, "raw",
bs, &child_file, false, &local_err);
if (local_err) {
ret = -EINVAL;
error_propagate(errp, local_err);
goto fail;
}
/* Open the test file */
assert(s->test_file == NULL);
ret = bdrv_open_image(&s->test_file, qemu_opt_get(opts, "x-image"), options,
"test", bs, &child_format, false, &local_err);
if (ret < 0) {
s->test_file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options,
"test", bs, &child_format, false,
&local_err);
if (local_err) {
ret = -EINVAL;
error_propagate(errp, local_err);
s->test_file = NULL;
goto fail;
}
ret = 0;
fail:
if (ret < 0) {
bdrv_unref_child(bs, bs->file);
}
qemu_opts_del(opts);
return ret;
}
@@ -151,7 +154,7 @@ static void blkverify_close(BlockDriverState *bs)
{
BDRVBlkverifyState *s = bs->opaque;
bdrv_unref(s->test_file);
bdrv_unref_child(bs, s->test_file);
s->test_file = NULL;
}
@@ -159,7 +162,7 @@ static int64_t blkverify_getlength(BlockDriverState *bs)
{
BDRVBlkverifyState *s = bs->opaque;
return bdrv_getlength(s->test_file);
return bdrv_getlength(s->test_file->bs);
}
static BlkverifyAIOCB *blkverify_aio_get(BlockDriverState *bs, bool is_write,
@@ -238,13 +241,13 @@ static BlockAIOCB *blkverify_aio_readv(BlockDriverState *bs,
nb_sectors, cb, opaque);
acb->verify = blkverify_verify_readv;
acb->buf = qemu_blockalign(bs->file, qiov->size);
acb->buf = qemu_blockalign(bs->file->bs, qiov->size);
qemu_iovec_init(&acb->raw_qiov, acb->qiov->niov);
qemu_iovec_clone(&acb->raw_qiov, qiov, acb->buf);
bdrv_aio_readv(s->test_file, sector_num, qiov, nb_sectors,
bdrv_aio_readv(s->test_file->bs, sector_num, qiov, nb_sectors,
blkverify_aio_cb, acb);
bdrv_aio_readv(bs->file, sector_num, &acb->raw_qiov, nb_sectors,
bdrv_aio_readv(bs->file->bs, sector_num, &acb->raw_qiov, nb_sectors,
blkverify_aio_cb, acb);
return &acb->common;
}
@@ -257,9 +260,9 @@ static BlockAIOCB *blkverify_aio_writev(BlockDriverState *bs,
BlkverifyAIOCB *acb = blkverify_aio_get(bs, true, sector_num, qiov,
nb_sectors, cb, opaque);
bdrv_aio_writev(s->test_file, sector_num, qiov, nb_sectors,
bdrv_aio_writev(s->test_file->bs, sector_num, qiov, nb_sectors,
blkverify_aio_cb, acb);
bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors,
bdrv_aio_writev(bs->file->bs, sector_num, qiov, nb_sectors,
blkverify_aio_cb, acb);
return &acb->common;
}
@@ -271,7 +274,7 @@ static BlockAIOCB *blkverify_aio_flush(BlockDriverState *bs,
BDRVBlkverifyState *s = bs->opaque;
/* Only flush test file, the raw file is not important */
return bdrv_aio_flush(s->test_file, cb, opaque);
return bdrv_aio_flush(s->test_file->bs, cb, opaque);
}
static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs,
@@ -279,13 +282,13 @@ static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs,
{
BDRVBlkverifyState *s = bs->opaque;
bool perm = bdrv_recurse_is_first_non_filter(bs->file, candidate);
bool perm = bdrv_recurse_is_first_non_filter(bs->file->bs, candidate);
if (perm) {
return true;
}
return bdrv_recurse_is_first_non_filter(s->test_file, candidate);
return bdrv_recurse_is_first_non_filter(s->test_file->bs, candidate);
}
/* Propagate AioContext changes to ->test_file */
@@ -293,7 +296,7 @@ static void blkverify_detach_aio_context(BlockDriverState *bs)
{
BDRVBlkverifyState *s = bs->opaque;
bdrv_detach_aio_context(s->test_file);
bdrv_detach_aio_context(s->test_file->bs);
}
static void blkverify_attach_aio_context(BlockDriverState *bs,
@@ -301,32 +304,38 @@ static void blkverify_attach_aio_context(BlockDriverState *bs,
{
BDRVBlkverifyState *s = bs->opaque;
bdrv_attach_aio_context(s->test_file, new_context);
bdrv_attach_aio_context(s->test_file->bs, new_context);
}
static void blkverify_refresh_filename(BlockDriverState *bs)
{
BDRVBlkverifyState *s = bs->opaque;
/* bs->file has already been refreshed */
bdrv_refresh_filename(s->test_file);
/* bs->file->bs has already been refreshed */
bdrv_refresh_filename(s->test_file->bs);
if (bs->file->full_open_options && s->test_file->full_open_options) {
if (bs->file->bs->full_open_options
&& s->test_file->bs->full_open_options)
{
QDict *opts = qdict_new();
qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("blkverify")));
QINCREF(bs->file->full_open_options);
qdict_put_obj(opts, "raw", QOBJECT(bs->file->full_open_options));
QINCREF(s->test_file->full_open_options);
qdict_put_obj(opts, "test", QOBJECT(s->test_file->full_open_options));
QINCREF(bs->file->bs->full_open_options);
qdict_put_obj(opts, "raw", QOBJECT(bs->file->bs->full_open_options));
QINCREF(s->test_file->bs->full_open_options);
qdict_put_obj(opts, "test",
QOBJECT(s->test_file->bs->full_open_options));
bs->full_open_options = opts;
}
if (bs->file->exact_filename[0] && s->test_file->exact_filename[0]) {
if (bs->file->bs->exact_filename[0]
&& s->test_file->bs->exact_filename[0])
{
snprintf(bs->exact_filename, sizeof(bs->exact_filename),
"blkverify:%s:%s",
bs->file->exact_filename, s->test_file->exact_filename);
bs->file->bs->exact_filename,
s->test_file->bs->exact_filename);
}
}
block/block-backend.c
+17
View File
@@ -238,6 +238,23 @@ BlockDriverState *blk_bs(BlockBackend *blk)
return blk->bs;
}
/*
* Changes the BlockDriverState attached to @blk
*/
void blk_set_bs(BlockBackend *blk, BlockDriverState *bs)
{
bdrv_ref(bs);
if (blk->bs) {
blk->bs->blk = NULL;
bdrv_unref(blk->bs);
}
assert(bs->blk == NULL);
blk->bs = bs;
bs->blk = blk;
}
/*
* Return @blk's DriveInfo if any, else null.
*/
block/bochs.c
+4 -4
View File
@@ -103,7 +103,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
bs->read_only = 1; // no write support yet
ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs));
ret = bdrv_pread(bs->file->bs, 0, &bochs, sizeof(bochs));
if (ret < 0) {
return ret;
}
@@ -137,7 +137,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags,
return -ENOMEM;
}
ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap,
ret = bdrv_pread(bs->file->bs, le32_to_cpu(bochs.header), s->catalog_bitmap,
s->catalog_size * 4);
if (ret < 0) {
goto fail;
@@ -206,7 +206,7 @@ static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num)
(s->extent_blocks + s->bitmap_blocks));
/* read in bitmap for current extent */
ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8),
ret = bdrv_pread(bs->file->bs, bitmap_offset + (extent_offset / 8),
&bitmap_entry, 1);
if (ret < 0) {
return ret;
@@ -229,7 +229,7 @@ static int bochs_read(BlockDriverState *bs, int64_t sector_num,
if (block_offset < 0) {
return block_offset;
} else if (block_offset > 0) {
ret = bdrv_pread(bs->file, block_offset, buf, 512);
ret = bdrv_pread(bs->file->bs, block_offset, buf, 512);
if (ret < 0) {
return ret;
}
block/cloop.c
+5 -5
View File
@@ -66,7 +66,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
bs->read_only = 1;
/* read header */
ret = bdrv_pread(bs->file, 128, &s->block_size, 4);
ret = bdrv_pread(bs->file->bs, 128, &s->block_size, 4);
if (ret < 0) {
return ret;
}
@@ -92,7 +92,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4);
ret = bdrv_pread(bs->file->bs, 128 + 4, &s->n_blocks, 4);
if (ret < 0) {
return ret;
}
@@ -123,7 +123,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
return -ENOMEM;
}
ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size);
ret = bdrv_pread(bs->file->bs, 128 + 4 + 4, s->offsets, offsets_size);
if (ret < 0) {
goto fail;
}
@@ -203,8 +203,8 @@ static inline int cloop_read_block(BlockDriverState *bs, int block_num)
int ret;
uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num];
ret = bdrv_pread(bs->file, s->offsets[block_num], s->compressed_block,
bytes);
ret = bdrv_pread(bs->file->bs, s->offsets[block_num],
s->compressed_block, bytes);
if (ret != bytes) {
return -1;
}
block/dmg.c
+10 -10
View File
@@ -85,7 +85,7 @@ static int read_uint64(BlockDriverState *bs, int64_t offset, uint64_t *result)
uint64_t buffer;
int ret;
ret = bdrv_pread(bs->file, offset, &buffer, 8);
ret = bdrv_pread(bs->file->bs, offset, &buffer, 8);
if (ret < 0) {
return ret;
}
@@ -99,7 +99,7 @@ static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result)
uint32_t buffer;
int ret;
ret = bdrv_pread(bs->file, offset, &buffer, 4);
ret = bdrv_pread(bs->file->bs, offset, &buffer, 4);
if (ret < 0) {
return ret;
}
@@ -354,7 +354,7 @@ static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds,
offset += 4;
buffer = g_realloc(buffer, count);
ret = bdrv_pread(bs->file, offset, buffer, count);
ret = bdrv_pread(bs->file->bs, offset, buffer, count);
if (ret < 0) {
goto fail;
}
@@ -391,7 +391,7 @@ static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
buffer = g_malloc(info_length + 1);
buffer[info_length] = '\0';
ret = bdrv_pread(bs->file, info_begin, buffer, info_length);
ret = bdrv_pread(bs->file->bs, info_begin, buffer, info_length);
if (ret != info_length) {
ret = -EINVAL;
goto fail;
@@ -446,7 +446,7 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags,
ds.max_sectors_per_chunk = 1;
/* locate the UDIF trailer */
offset = dmg_find_koly_offset(bs->file, errp);
offset = dmg_find_koly_offset(bs->file->bs, errp);
if (offset < 0) {
ret = offset;
goto fail;
@@ -514,9 +514,9 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags,
}
/* initialize zlib engine */
s->compressed_chunk = qemu_try_blockalign(bs->file,
s->compressed_chunk = qemu_try_blockalign(bs->file->bs,
ds.max_compressed_size + 1);
s->uncompressed_chunk = qemu_try_blockalign(bs->file,
s->uncompressed_chunk = qemu_try_blockalign(bs->file->bs,
512 * ds.max_sectors_per_chunk);
if (s->compressed_chunk == NULL || s->uncompressed_chunk == NULL) {
ret = -ENOMEM;
@@ -592,7 +592,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
case 0x80000005: { /* zlib compressed */
/* we need to buffer, because only the chunk as whole can be
* inflated. */
ret = bdrv_pread(bs->file, s->offsets[chunk],
ret = bdrv_pread(bs->file->bs, s->offsets[chunk],
s->compressed_chunk, s->lengths[chunk]);
if (ret != s->lengths[chunk]) {
return -1;
@@ -616,7 +616,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
case 0x80000006: /* bzip2 compressed */
/* we need to buffer, because only the chunk as whole can be
* inflated. */
ret = bdrv_pread(bs->file, s->offsets[chunk],
ret = bdrv_pread(bs->file->bs, s->offsets[chunk],
s->compressed_chunk, s->lengths[chunk]);
if (ret != s->lengths[chunk]) {
return -1;
@@ -641,7 +641,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
break;
#endif /* CONFIG_BZIP2 */
case 1: /* copy */
ret = bdrv_pread(bs->file, s->offsets[chunk],
ret = bdrv_pread(bs->file->bs, s->offsets[chunk],
s->uncompressed_chunk, s->lengths[chunk]);
if (ret != s->lengths[chunk]) {
return -1;
block/io.c
+38 -38
View File
@@ -156,38 +156,38 @@ void bdrv_refresh_limits(BlockDriverState *bs, Error **errp)
/* Take some limits from the children as a default */
if (bs->file) {
bdrv_refresh_limits(bs->file, &local_err);
bdrv_refresh_limits(bs->file->bs, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
bs->bl.opt_transfer_length = bs->file->bl.opt_transfer_length;
bs->bl.max_transfer_length = bs->file->bl.max_transfer_length;
bs->bl.min_mem_alignment = bs->file->bl.min_mem_alignment;
bs->bl.opt_mem_alignment = bs->file->bl.opt_mem_alignment;
bs->bl.opt_transfer_length = bs->file->bs->bl.opt_transfer_length;
bs->bl.max_transfer_length = bs->file->bs->bl.max_transfer_length;
bs->bl.min_mem_alignment = bs->file->bs->bl.min_mem_alignment;
bs->bl.opt_mem_alignment = bs->file->bs->bl.opt_mem_alignment;
} else {
bs->bl.min_mem_alignment = 512;
bs->bl.opt_mem_alignment = getpagesize();
}
if (bs->backing_hd) {
bdrv_refresh_limits(bs->backing_hd, &local_err);
if (bs->backing) {
bdrv_refresh_limits(bs->backing->bs, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
bs->bl.opt_transfer_length =
MAX(bs->bl.opt_transfer_length,
bs->backing_hd->bl.opt_transfer_length);
bs->backing->bs->bl.opt_transfer_length);
bs->bl.max_transfer_length =
MIN_NON_ZERO(bs->bl.max_transfer_length,
bs->backing_hd->bl.max_transfer_length);
bs->backing->bs->bl.max_transfer_length);
bs->bl.opt_mem_alignment =
MAX(bs->bl.opt_mem_alignment,
bs->backing_hd->bl.opt_mem_alignment);
bs->backing->bs->bl.opt_mem_alignment);
bs->bl.min_mem_alignment =
MAX(bs->bl.min_mem_alignment,
bs->backing_hd->bl.min_mem_alignment);
bs->backing->bs->bl.min_mem_alignment);
}
/* Then let the driver override it */
@@ -213,7 +213,7 @@ void bdrv_disable_copy_on_read(BlockDriverState *bs)
}
/* Check if any requests are in-flight (including throttled requests) */
static bool bdrv_requests_pending(BlockDriverState *bs)
bool bdrv_requests_pending(BlockDriverState *bs)
{
if (!QLIST_EMPTY(&bs->tracked_requests)) {
return true;
@@ -224,10 +224,10 @@ static bool bdrv_requests_pending(BlockDriverState *bs)
if (!qemu_co_queue_empty(&bs->throttled_reqs[1])) {
return true;
}
if (bs->file && bdrv_requests_pending(bs->file)) {
if (bs->file && bdrv_requests_pending(bs->file->bs)) {
return true;
}
if (bs->backing_hd && bdrv_requests_pending(bs->backing_hd)) {
if (bs->backing && bdrv_requests_pending(bs->backing->bs)) {
return true;
}
return false;
@@ -1137,13 +1137,13 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs,
if (ret < 0) {
/* Do nothing, write notifier decided to fail this request */
} else if (flags & BDRV_REQ_ZERO_WRITE) {
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_ZERO);
bdrv_debug_event(bs, BLKDBG_PWRITEV_ZERO);
ret = bdrv_co_do_write_zeroes(bs, sector_num, nb_sectors, flags);
} else {
BLKDBG_EVENT(bs, BLKDBG_PWRITEV);
bdrv_debug_event(bs, BLKDBG_PWRITEV);
ret = drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov);
}
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_DONE);
bdrv_debug_event(bs, BLKDBG_PWRITEV_DONE);
if (ret == 0 && !bs->enable_write_cache) {
ret = bdrv_co_flush(bs);
@@ -1192,13 +1192,13 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs,
/* RMW the unaligned part before head. */
mark_request_serialising(req, align);
wait_serialising_requests(req);
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_HEAD);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_HEAD);
ret = bdrv_aligned_preadv(bs, req, offset & ~(align - 1), align,
align, &local_qiov, 0);
if (ret < 0) {
goto fail;
}
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD);
memset(buf + head_padding_bytes, 0, zero_bytes);
ret = bdrv_aligned_pwritev(bs, req, offset & ~(align - 1), align,
@@ -1230,13 +1230,13 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs,
/* RMW the unaligned part after tail. */
mark_request_serialising(req, align);
wait_serialising_requests(req);
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_TAIL);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_TAIL);
ret = bdrv_aligned_preadv(bs, req, offset, align,
align, &local_qiov, 0);
if (ret < 0) {
goto fail;
}
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL);
memset(buf, 0, bytes);
ret = bdrv_aligned_pwritev(bs, req, offset, align,
@@ -1307,13 +1307,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
};
qemu_iovec_init_external(&head_qiov, &head_iov, 1);
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_HEAD);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_HEAD);
ret = bdrv_aligned_preadv(bs, &req, offset & ~(align - 1), align,
align, &head_qiov, 0);
if (ret < 0) {
goto fail;
}
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD);
qemu_iovec_init(&local_qiov, qiov->niov + 2);
qemu_iovec_add(&local_qiov, head_buf, offset & (align - 1));
@@ -1341,13 +1341,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
};
qemu_iovec_init_external(&tail_qiov, &tail_iov, 1);
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_TAIL);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_TAIL);
ret = bdrv_aligned_preadv(bs, &req, (offset + bytes) & ~(align - 1), align,
align, &tail_qiov, 0);
if (ret < 0) {
goto fail;
}
BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL);
bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL);
if (!use_local_qiov) {
qemu_iovec_init(&local_qiov, qiov->niov + 1);
@@ -1496,7 +1496,7 @@ static int64_t coroutine_fn bdrv_co_get_block_status(BlockDriverState *bs,
if (ret & BDRV_BLOCK_RAW) {
assert(ret & BDRV_BLOCK_OFFSET_VALID);
return bdrv_get_block_status(bs->file, ret >> BDRV_SECTOR_BITS,
return bdrv_get_block_status(bs->file->bs, ret >> BDRV_SECTOR_BITS,
*pnum, pnum);
}
@@ -1505,8 +1505,8 @@ static int64_t coroutine_fn bdrv_co_get_block_status(BlockDriverState *bs,
} else {
if (bdrv_unallocated_blocks_are_zero(bs)) {
ret |= BDRV_BLOCK_ZERO;
} else if (bs->backing_hd) {
BlockDriverState *bs2 = bs->backing_hd;
} else if (bs->backing) {
BlockDriverState *bs2 = bs->backing->bs;
int64_t nb_sectors2 = bdrv_nb_sectors(bs2);
if (nb_sectors2 >= 0 && sector_num >= nb_sectors2) {
ret |= BDRV_BLOCK_ZERO;
@@ -1519,7 +1519,7 @@ static int64_t coroutine_fn bdrv_co_get_block_status(BlockDriverState *bs,
(ret & BDRV_BLOCK_OFFSET_VALID)) {
int file_pnum;
ret2 = bdrv_co_get_block_status(bs->file, ret >> BDRV_SECTOR_BITS,
ret2 = bdrv_co_get_block_status(bs->file->bs, ret >> BDRV_SECTOR_BITS,
*pnum, &file_pnum);
if (ret2 >= 0) {
/* Ignore errors. This is just providing extra information, it
@@ -1551,7 +1551,7 @@ static int64_t coroutine_fn bdrv_co_get_block_status_above(BlockDriverState *bs,
int64_t ret = 0;
assert(bs != base);
for (p = bs; p != base; p = p->backing_hd) {
for (p = bs; p != base; p = backing_bs(p)) {
ret = bdrv_co_get_block_status(p, sector_num, nb_sectors, pnum);
if (ret < 0 || ret & BDRV_BLOCK_ALLOCATED) {
break;
@@ -1614,7 +1614,7 @@ int64_t bdrv_get_block_status(BlockDriverState *bs,
int64_t sector_num,
int nb_sectors, int *pnum)
{
return bdrv_get_block_status_above(bs, bs->backing_hd,
return bdrv_get_block_status_above(bs, backing_bs(bs),
sector_num, nb_sectors, pnum);
}
@@ -1672,7 +1672,7 @@ int bdrv_is_allocated_above(BlockDriverState *top,
n = pnum_inter;
}
intermediate = intermediate->backing_hd;
intermediate = backing_bs(intermediate);
}
*pnum = n;
@@ -1723,7 +1723,7 @@ int bdrv_writev_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos)
} else if (drv->bdrv_save_vmstate) {
return drv->bdrv_save_vmstate(bs, qiov, pos);
} else if (bs->file) {
return bdrv_writev_vmstate(bs->file, qiov, pos);
return bdrv_writev_vmstate(bs->file->bs, qiov, pos);
}
return -ENOTSUP;
@@ -1738,7 +1738,7 @@ int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
if (drv->bdrv_load_vmstate)
return drv->bdrv_load_vmstate(bs, buf, pos, size);
if (bs->file)
return bdrv_load_vmstate(bs->file, buf, pos, size);
return bdrv_load_vmstate(bs->file->bs, buf, pos, size);
return -ENOTSUP;
}
@@ -2366,7 +2366,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs)
* in the case of cache=unsafe, so there are no useless flushes.
*/
flush_parent:
return bdrv_co_flush(bs->file);
return bs->file ? bdrv_co_flush(bs->file->bs) : 0;
}
int bdrv_flush(BlockDriverState *bs)
@@ -2594,7 +2594,7 @@ void bdrv_io_plug(BlockDriverState *bs)
if (drv && drv->bdrv_io_plug) {
drv->bdrv_io_plug(bs);
} else if (bs->file) {
bdrv_io_plug(bs->file);
bdrv_io_plug(bs->file->bs);
}
}
@@ -2604,7 +2604,7 @@ void bdrv_io_unplug(BlockDriverState *bs)
if (drv && drv->bdrv_io_unplug) {
drv->bdrv_io_unplug(bs);
} else if (bs->file) {
bdrv_io_unplug(bs->file);
bdrv_io_unplug(bs->file->bs);
}
}
@@ -2614,7 +2614,7 @@ void bdrv_flush_io_queue(BlockDriverState *bs)
if (drv && drv->bdrv_flush_io_queue) {
drv->bdrv_flush_io_queue(bs);
} else if (bs->file) {
bdrv_flush_io_queue(bs->file);
bdrv_flush_io_queue(bs->file->bs);
}
bdrv_start_throttled_reqs(bs);
}
block/mirror.c
+10 -12
View File
@@ -353,6 +353,11 @@ static void mirror_exit(BlockJob *job, void *opaque)
MirrorBlockJob *s = container_of(job, MirrorBlockJob, common);
MirrorExitData *data = opaque;
AioContext *replace_aio_context = NULL;
BlockDriverState *src = s->common.bs;
/* Make sure that the source BDS doesn't go away before we called
* block_job_completed(). */
bdrv_ref(src);
if (s->to_replace) {
replace_aio_context = bdrv_get_aio_context(s->to_replace);
@@ -367,14 +372,7 @@ static void mirror_exit(BlockJob *job, void *opaque)
if (bdrv_get_flags(s->target) != bdrv_get_flags(to_replace)) {
bdrv_reopen(s->target, bdrv_get_flags(to_replace), NULL);
}
bdrv_swap(s->target, to_replace);
if (s->common.driver->job_type == BLOCK_JOB_TYPE_COMMIT) {
/* drop the bs loop chain formed by the swap: break the loop then
* trigger the unref from the top one */
BlockDriverState *p = s->base->backing_hd;
bdrv_set_backing_hd(s->base, NULL);
bdrv_unref(p);
}
bdrv_replace_in_backing_chain(to_replace, s->target);
}
if (s->to_replace) {
bdrv_op_unblock_all(s->to_replace, s->replace_blocker);
@@ -388,6 +386,7 @@ static void mirror_exit(BlockJob *job, void *opaque)
bdrv_unref(s->target);
block_job_completed(&s->common, data->ret);
g_free(data);
bdrv_unref(src);
}
static void coroutine_fn mirror_run(void *opaque)
@@ -431,7 +430,7 @@ static void coroutine_fn mirror_run(void *opaque)
*/
bdrv_get_backing_filename(s->target, backing_filename,
sizeof(backing_filename));
if (backing_filename[0] && !s->target->backing_hd) {
if (backing_filename[0] && !s->target->backing) {
ret = bdrv_get_info(s->target, &bdi);
if (ret < 0) {
goto immediate_exit;
@@ -637,8 +636,7 @@ static void mirror_complete(BlockJob *job, Error **errp)
return;
}
if (!s->synced) {
error_setg(errp, QERR_BLOCK_JOB_NOT_READY,
bdrv_get_device_name(job->bs));
error_setg(errp, QERR_BLOCK_JOB_NOT_READY, job->id);
return;
}
@@ -766,7 +764,7 @@ void mirror_start(BlockDriverState *bs, BlockDriverState *target,
return;
}
is_none_mode = mode == MIRROR_SYNC_MODE_NONE;
base = mode == MIRROR_SYNC_MODE_TOP ? bs->backing_hd : NULL;
base = mode == MIRROR_SYNC_MODE_TOP ? backing_bs(bs) : NULL;
mirror_start_job(bs, target, replaces,
speed, granularity, buf_size,
on_source_error, on_target_error, unmap, cb, opaque, errp,
block/parallels.c
+20 -18
View File
@@ -202,13 +202,13 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num,
to_allocate = (sector_num + *pnum + s->tracks - 1) / s->tracks - idx;
space = to_allocate * s->tracks;
if (s->data_end + space > bdrv_getlength(bs->file) >> BDRV_SECTOR_BITS) {
if (s->data_end + space > bdrv_getlength(bs->file->bs) >> BDRV_SECTOR_BITS) {
int ret;
space += s->prealloc_size;
if (s->prealloc_mode == PRL_PREALLOC_MODE_FALLOCATE) {
ret = bdrv_write_zeroes(bs->file, s->data_end, space, 0);
ret = bdrv_write_zeroes(bs->file->bs, s->data_end, space, 0);
} else {
ret = bdrv_truncate(bs->file,
ret = bdrv_truncate(bs->file->bs,
(s->data_end + space) << BDRV_SECTOR_BITS);
}
if (ret < 0) {
@@ -244,7 +244,8 @@ static coroutine_fn int parallels_co_flush_to_os(BlockDriverState *bs)
if (off + to_write > s->header_size) {
to_write = s->header_size - off;
}
ret = bdrv_pwrite(bs->file, off, (uint8_t *)s->header + off, to_write);
ret = bdrv_pwrite(bs->file->bs, off, (uint8_t *)s->header + off,
to_write);
if (ret < 0) {
qemu_co_mutex_unlock(&s->lock);
return ret;
@@ -303,7 +304,7 @@ static coroutine_fn int parallels_co_writev(BlockDriverState *bs,
qemu_iovec_reset(&hd_qiov);
qemu_iovec_concat(&hd_qiov, qiov, bytes_done, nbytes);
ret = bdrv_co_writev(bs->file, position, n, &hd_qiov);
ret = bdrv_co_writev(bs->file->bs, position, n, &hd_qiov);
if (ret < 0) {
break;
}
@@ -343,7 +344,7 @@ static coroutine_fn int parallels_co_readv(BlockDriverState *bs,
qemu_iovec_reset(&hd_qiov);
qemu_iovec_concat(&hd_qiov, qiov, bytes_done, nbytes);
ret = bdrv_co_readv(bs->file, position, n, &hd_qiov);
ret = bdrv_co_readv(bs->file->bs, position, n, &hd_qiov);
if (ret < 0) {
break;
}
@@ -369,7 +370,7 @@ static int parallels_check(BlockDriverState *bs, BdrvCheckResult *res,
bool flush_bat = false;
int cluster_size = s->tracks << BDRV_SECTOR_BITS;
size = bdrv_getlength(bs->file);
size = bdrv_getlength(bs->file->bs);
if (size < 0) {
res->check_errors++;
return size;
@@ -424,7 +425,7 @@ static int parallels_check(BlockDriverState *bs, BdrvCheckResult *res,
}
if (flush_bat) {
ret = bdrv_pwrite_sync(bs->file, 0, s->header, s->header_size);
ret = bdrv_pwrite_sync(bs->file->bs, 0, s->header, s->header_size);
if (ret < 0) {
res->check_errors++;
return ret;
@@ -440,7 +441,7 @@ 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);
ret = bdrv_truncate(bs->file->bs, res->image_end_offset);
if (ret < 0) {
res->check_errors++;
return ret;
@@ -546,12 +547,13 @@ static int parallels_probe(const uint8_t *buf, int buf_size,
static int parallels_update_header(BlockDriverState *bs)
{
BDRVParallelsState *s = bs->opaque;
unsigned size = MAX(bdrv_opt_mem_align(bs->file), sizeof(ParallelsHeader));
unsigned size = MAX(bdrv_opt_mem_align(bs->file->bs),
sizeof(ParallelsHeader));
if (size > s->header_size) {
size = s->header_size;
}
return bdrv_pwrite_sync(bs->file, 0, s->header, size);
return bdrv_pwrite_sync(bs->file->bs, 0, s->header, size);
}
static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
@@ -564,7 +566,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
Error *local_err = NULL;
char *buf;
ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph));
ret = bdrv_pread(bs->file->bs, 0, &ph, sizeof(ph));
if (ret < 0) {
goto fail;
}
@@ -603,8 +605,8 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
}
size = bat_entry_off(s->bat_size);
s->header_size = ROUND_UP(size, bdrv_opt_mem_align(bs->file));
s->header = qemu_try_blockalign(bs->file, s->header_size);
s->header_size = ROUND_UP(size, bdrv_opt_mem_align(bs->file->bs));
s->header = qemu_try_blockalign(bs->file->bs, s->header_size);
if (s->header == NULL) {
ret = -ENOMEM;
goto fail;
@@ -619,7 +621,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
s->header_size = size;
}
ret = bdrv_pread(bs->file, 0, s->header, s->header_size);
ret = bdrv_pread(bs->file->bs, 0, s->header, s->header_size);
if (ret < 0) {
goto fail;
}
@@ -663,8 +665,8 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
if (local_err != NULL) {
goto fail_options;
}
if (!bdrv_has_zero_init(bs->file) ||
bdrv_truncate(bs->file, bdrv_getlength(bs->file)) != 0) {
if (!bdrv_has_zero_init(bs->file->bs) ||
bdrv_truncate(bs->file->bs, bdrv_getlength(bs->file->bs)) != 0) {
s->prealloc_mode = PRL_PREALLOC_MODE_FALLOCATE;
}
@@ -707,7 +709,7 @@ 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->bs, s->data_end << BDRV_SECTOR_BITS);
}
g_free(s->bat_dirty_bmap);
block/qapi.c
+5 -5
View File
@@ -110,8 +110,8 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs, Error **errp)
qapi_free_BlockDeviceInfo(info);
return NULL;
}
if (bs0->drv && bs0->backing_hd) {
bs0 = bs0->backing_hd;
if (bs0->drv && bs0->backing) {
bs0 = bs0->backing->bs;
(*p_image_info)->has_backing_image = true;
p_image_info = &((*p_image_info)->backing_image);
} else {
@@ -359,12 +359,12 @@ static BlockStats *bdrv_query_stats(const BlockDriverState *bs,
if (bs->file) {
s->has_parent = true;
s->parent = bdrv_query_stats(bs->file, query_backing);
s->parent = bdrv_query_stats(bs->file->bs, query_backing);
}
if (query_backing && bs->backing_hd) {
if (query_backing && bs->backing) {
s->has_backing = true;
s->backing = bdrv_query_stats(bs->backing_hd, query_backing);
s->backing = bdrv_query_stats(bs->backing->bs, query_backing);
}
return s;
block/qcow.c
+25 -22
View File
@@ -100,7 +100,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
int ret;
QCowHeader header;
ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
ret = bdrv_pread(bs->file->bs, 0, &header, sizeof(header));
if (ret < 0) {
goto fail;
}
@@ -193,7 +193,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
ret = bdrv_pread(bs->file->bs, s->l1_table_offset, s->l1_table,
s->l1_size * sizeof(uint64_t));
if (ret < 0) {
goto fail;
@@ -205,7 +205,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
/* alloc L2 cache (max. 64k * 16 * 8 = 8 MB) */
s->l2_cache =
qemu_try_blockalign(bs->file,
qemu_try_blockalign(bs->file->bs,
s->l2_size * L2_CACHE_SIZE * sizeof(uint64_t));
if (s->l2_cache == NULL) {
error_setg(errp, "Could not allocate L2 table cache");
@@ -224,7 +224,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
ret = -EINVAL;
goto fail;
}
ret = bdrv_pread(bs->file, header.backing_file_offset,
ret = bdrv_pread(bs->file->bs, header.backing_file_offset,
bs->backing_file, len);
if (ret < 0) {
goto fail;
@@ -369,13 +369,13 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
if (!allocate)
return 0;
/* allocate a new l2 entry */
l2_offset = bdrv_getlength(bs->file);
l2_offset = bdrv_getlength(bs->file->bs);
/* round to cluster size */
l2_offset = (l2_offset + s->cluster_size - 1) & ~(s->cluster_size - 1);
/* update the L1 entry */
s->l1_table[l1_index] = l2_offset;
tmp = cpu_to_be64(l2_offset);
if (bdrv_pwrite_sync(bs->file,
if (bdrv_pwrite_sync(bs->file->bs,
s->l1_table_offset + l1_index * sizeof(tmp),
&tmp, sizeof(tmp)) < 0)
return 0;
@@ -405,11 +405,12 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
l2_table = s->l2_cache + (min_index << s->l2_bits);
if (new_l2_table) {
memset(l2_table, 0, s->l2_size * sizeof(uint64_t));
if (bdrv_pwrite_sync(bs->file, l2_offset, l2_table,
if (bdrv_pwrite_sync(bs->file->bs, l2_offset, l2_table,
s->l2_size * sizeof(uint64_t)) < 0)
return 0;
} else {
if (bdrv_pread(bs->file, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) !=
if (bdrv_pread(bs->file->bs, l2_offset, l2_table,
s->l2_size * sizeof(uint64_t)) !=
s->l2_size * sizeof(uint64_t))
return 0;
}
@@ -430,20 +431,21 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
overwritten */
if (decompress_cluster(bs, cluster_offset) < 0)
return 0;
cluster_offset = bdrv_getlength(bs->file);
cluster_offset = bdrv_getlength(bs->file->bs);
cluster_offset = (cluster_offset + s->cluster_size - 1) &
~(s->cluster_size - 1);
/* write the cluster content */
if (bdrv_pwrite(bs->file, cluster_offset, s->cluster_cache, s->cluster_size) !=
if (bdrv_pwrite(bs->file->bs, cluster_offset, s->cluster_cache,
s->cluster_size) !=
s->cluster_size)
return -1;
} else {
cluster_offset = bdrv_getlength(bs->file);
cluster_offset = bdrv_getlength(bs->file->bs);
if (allocate == 1) {
/* 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->bs, cluster_offset + s->cluster_size);
/* if encrypted, we must initialize the cluster
content which won't be written */
if (bs->encrypted &&
@@ -463,7 +465,8 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
errno = EIO;
return -1;
}
if (bdrv_pwrite(bs->file, cluster_offset + i * 512,
if (bdrv_pwrite(bs->file->bs,
cluster_offset + i * 512,
s->cluster_data, 512) != 512)
return -1;
}
@@ -477,7 +480,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs,
/* update L2 table */
tmp = cpu_to_be64(cluster_offset);
l2_table[l2_index] = tmp;
if (bdrv_pwrite_sync(bs->file, l2_offset + l2_index * sizeof(tmp),
if (bdrv_pwrite_sync(bs->file->bs, l2_offset + l2_index * sizeof(tmp),
&tmp, sizeof(tmp)) < 0)
return 0;
}
@@ -546,7 +549,7 @@ static int decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
if (s->cluster_cache_offset != coffset) {
csize = cluster_offset >> (63 - s->cluster_bits);
csize &= (s->cluster_size - 1);
ret = bdrv_pread(bs->file, coffset, s->cluster_data, csize);
ret = bdrv_pread(bs->file->bs, coffset, s->cluster_data, csize);
if (ret != csize)
return -1;
if (decompress_buffer(s->cluster_cache, s->cluster_size,
@@ -594,13 +597,13 @@ static coroutine_fn int qcow_co_readv(BlockDriverState *bs, int64_t sector_num,
}
if (!cluster_offset) {
if (bs->backing_hd) {
if (bs->backing) {
/* read from the base image */
hd_iov.iov_base = (void *)buf;
hd_iov.iov_len = n * 512;
qemu_iovec_init_external(&hd_qiov, &hd_iov, 1);
qemu_co_mutex_unlock(&s->lock);
ret = bdrv_co_readv(bs->backing_hd, sector_num,
ret = bdrv_co_readv(bs->backing->bs, sector_num,
n, &hd_qiov);
qemu_co_mutex_lock(&s->lock);
if (ret < 0) {
@@ -625,7 +628,7 @@ static coroutine_fn int qcow_co_readv(BlockDriverState *bs, int64_t sector_num,
hd_iov.iov_len = n * 512;
qemu_iovec_init_external(&hd_qiov, &hd_iov, 1);
qemu_co_mutex_unlock(&s->lock);
ret = bdrv_co_readv(bs->file,
ret = bdrv_co_readv(bs->file->bs,
(cluster_offset >> 9) + index_in_cluster,
n, &hd_qiov);
qemu_co_mutex_lock(&s->lock);
@@ -727,7 +730,7 @@ static coroutine_fn int qcow_co_writev(BlockDriverState *bs, int64_t sector_num,
hd_iov.iov_len = n * 512;
qemu_iovec_init_external(&hd_qiov, &hd_iov, 1);
qemu_co_mutex_unlock(&s->lock);
ret = bdrv_co_writev(bs->file,
ret = bdrv_co_writev(bs->file->bs,
(cluster_offset >> 9) + index_in_cluster,
n, &hd_qiov);
qemu_co_mutex_lock(&s->lock);
@@ -879,10 +882,10 @@ static int qcow_make_empty(BlockDriverState *bs)
int ret;
memset(s->l1_table, 0, l1_length);
if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table,
if (bdrv_pwrite_sync(bs->file->bs, 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->bs, s->l1_table_offset + l1_length);
if (ret < 0)
return ret;
@@ -962,7 +965,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num,
}
cluster_offset &= s->cluster_offset_mask;
ret = bdrv_pwrite(bs->file, cluster_offset, out_buf, out_len);
ret = bdrv_pwrite(bs->file->bs, cluster_offset, out_buf, out_len);
if (ret < 0) {
goto fail;
}
block/qcow2-cache.c
+6 -5
View File
@@ -127,7 +127,7 @@ Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables)
c = g_new0(Qcow2Cache, 1);
c->size = num_tables;
c->entries = g_try_new0(Qcow2CachedTable, num_tables);
c->table_array = qemu_try_blockalign(bs->file,
c->table_array = qemu_try_blockalign(bs->file->bs,
(size_t) num_tables * s->cluster_size);
if (!c->entries || !c->table_array) {
@@ -185,7 +185,7 @@ static int qcow2_cache_entry_flush(BlockDriverState *bs, Qcow2Cache *c, int i)
if (c->depends) {
ret = qcow2_cache_flush_dependency(bs, c);
} else if (c->depends_on_flush) {
ret = bdrv_flush(bs->file);
ret = bdrv_flush(bs->file->bs);
if (ret >= 0) {
c->depends_on_flush = false;
}
@@ -216,7 +216,7 @@ static int qcow2_cache_entry_flush(BlockDriverState *bs, Qcow2Cache *c, int i)
BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE);
}
ret = bdrv_pwrite(bs->file, c->entries[i].offset,
ret = bdrv_pwrite(bs->file->bs, c->entries[i].offset,
qcow2_cache_get_table_addr(bs, c, i), s->cluster_size);
if (ret < 0) {
return ret;
@@ -244,7 +244,7 @@ int qcow2_cache_flush(BlockDriverState *bs, Qcow2Cache *c)
}
if (result == 0) {
ret = bdrv_flush(bs->file);
ret = bdrv_flush(bs->file->bs);
if (ret < 0) {
result = ret;
}
@@ -356,7 +356,8 @@ static int qcow2_cache_do_get(BlockDriverState *bs, Qcow2Cache *c,
BLKDBG_EVENT(bs->file, BLKDBG_L2_LOAD);
}
ret = bdrv_pread(bs->file, offset, qcow2_cache_get_table_addr(bs, c, i),
ret = bdrv_pread(bs->file->bs, offset,
qcow2_cache_get_table_addr(bs, c, i),
s->cluster_size);
if (ret < 0) {
return ret;
block/qcow2-cluster.c
+23 -18
View File
@@ -72,7 +72,7 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
#endif
new_l1_size2 = sizeof(uint64_t) * new_l1_size;
new_l1_table = qemu_try_blockalign(bs->file,
new_l1_table = qemu_try_blockalign(bs->file->bs,
align_offset(new_l1_size2, 512));
if (new_l1_table == NULL) {
return -ENOMEM;
@@ -105,7 +105,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_WRITE_TABLE);
for(i = 0; i < s->l1_size; i++)
new_l1_table[i] = cpu_to_be64(new_l1_table[i]);
ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset, new_l1_table, new_l1_size2);
ret = bdrv_pwrite_sync(bs->file->bs, new_l1_table_offset,
new_l1_table, new_l1_size2);
if (ret < 0)
goto fail;
for(i = 0; i < s->l1_size; i++)
@@ -115,7 +116,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,
BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE);
cpu_to_be32w((uint32_t*)data, new_l1_size);
stq_be_p(data + 4, new_l1_table_offset);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), data,sizeof(data));
ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, l1_size),
data, sizeof(data));
if (ret < 0) {
goto fail;
}
@@ -182,8 +184,9 @@ int qcow2_write_l1_entry(BlockDriverState *bs, int l1_index)
}
BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE);
ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset + 8 * l1_start_index,
buf, sizeof(buf));
ret = bdrv_pwrite_sync(bs->file->bs,
s->l1_table_offset + 8 * l1_start_index,
buf, sizeof(buf));
if (ret < 0) {
return ret;
}
@@ -440,7 +443,8 @@ static int coroutine_fn copy_sectors(BlockDriverState *bs,
}
BLKDBG_EVENT(bs->file, BLKDBG_COW_WRITE);
ret = bdrv_co_writev(bs->file, (cluster_offset >> 9) + n_start, n, &qiov);
ret = bdrv_co_writev(bs->file->bs, (cluster_offset >> 9) + n_start, n,
&qiov);
if (ret < 0) {
goto out;
}
@@ -817,7 +821,6 @@ int qcow2_alloc_cluster_link_l2(BlockDriverState *bs, QCowL2Meta *m)
/*
* If this was a COW, we need to decrease the refcount of the old cluster.
* Also flush bs->file to get the right order for L2 and refcount update.
*
* Don't discard clusters that reach a refcount of 0 (e.g. compressed
* clusters), the next write will reuse them anyway.
@@ -1412,7 +1415,8 @@ int qcow2_decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset)
sector_offset = coffset & 511;
csize = nb_csectors * 512 - sector_offset;
BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED);
ret = bdrv_read(bs->file, coffset >> 9, s->cluster_data, nb_csectors);
ret = bdrv_read(bs->file->bs, coffset >> 9, s->cluster_data,
nb_csectors);
if (ret < 0) {
return ret;
}
@@ -1469,7 +1473,7 @@ static int discard_single_l2(BlockDriverState *bs, uint64_t offset,
*/
switch (qcow2_get_cluster_type(old_l2_entry)) {
case QCOW2_CLUSTER_UNALLOCATED:
if (full_discard || !bs->backing_hd) {
if (full_discard || !bs->backing) {
continue;
}
break;
@@ -1645,7 +1649,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
if (!is_active_l1) {
/* inactive L2 tables require a buffer to be stored in when loading
* them from disk */
l2_table = qemu_try_blockalign(bs->file, s->cluster_size);
l2_table = qemu_try_blockalign(bs->file->bs, s->cluster_size);
if (l2_table == NULL) {
return -ENOMEM;
}
@@ -1679,8 +1683,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
(void **)&l2_table);
} else {
/* load inactive L2 tables from disk */
ret = bdrv_read(bs->file, l2_offset / BDRV_SECTOR_SIZE,
(void *)l2_table, s->cluster_sectors);
ret = bdrv_read(bs->file->bs, l2_offset / BDRV_SECTOR_SIZE,
(void *)l2_table, s->cluster_sectors);
}
if (ret < 0) {
goto fail;
@@ -1703,7 +1707,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
}
if (!preallocated) {
if (!bs->backing_hd) {
if (!bs->backing) {
/* not backed; therefore we can simply deallocate the
* cluster */
l2_table[j] = 0;
@@ -1754,7 +1758,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
goto fail;
}
ret = bdrv_write_zeroes(bs->file, offset / BDRV_SECTOR_SIZE,
ret = bdrv_write_zeroes(bs->file->bs, offset / BDRV_SECTOR_SIZE,
s->cluster_sectors, 0);
if (ret < 0) {
if (!preallocated) {
@@ -1787,8 +1791,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
goto fail;
}
ret = bdrv_write(bs->file, l2_offset / BDRV_SECTOR_SIZE,
(void *)l2_table, s->cluster_sectors);
ret = bdrv_write(bs->file->bs, l2_offset / BDRV_SECTOR_SIZE,
(void *)l2_table, s->cluster_sectors);
if (ret < 0) {
goto fail;
}
@@ -1861,8 +1865,9 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs,
l1_table = g_realloc(l1_table, l1_sectors * BDRV_SECTOR_SIZE);
ret = bdrv_read(bs->file, s->snapshots[i].l1_table_offset /
BDRV_SECTOR_SIZE, (void *)l1_table, l1_sectors);
ret = bdrv_read(bs->file->bs,
s->snapshots[i].l1_table_offset / BDRV_SECTOR_SIZE,
(void *)l1_table, l1_sectors);
if (ret < 0) {
goto fail;
}
block/qcow2-refcount.c
+24 -21
View File
@@ -101,7 +101,7 @@ int qcow2_refcount_init(BlockDriverState *bs)
goto fail;
}
BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_LOAD);
ret = bdrv_pread(bs->file, s->refcount_table_offset,
ret = bdrv_pread(bs->file->bs, s->refcount_table_offset,
s->refcount_table, refcount_table_size2);
if (ret < 0) {
goto fail;
@@ -431,7 +431,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
if (refcount_table_index < s->refcount_table_size) {
uint64_t data64 = cpu_to_be64(new_block);
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_HOOKUP);
ret = bdrv_pwrite_sync(bs->file,
ret = bdrv_pwrite_sync(bs->file->bs,
s->refcount_table_offset + refcount_table_index * sizeof(uint64_t),
&data64, sizeof(data64));
if (ret < 0) {
@@ -535,7 +535,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
/* Write refcount blocks to disk */
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS);
ret = bdrv_pwrite_sync(bs->file, meta_offset, new_blocks,
ret = bdrv_pwrite_sync(bs->file->bs, meta_offset, new_blocks,
blocks_clusters * s->cluster_size);
g_free(new_blocks);
new_blocks = NULL;
@@ -549,7 +549,7 @@ static int alloc_refcount_block(BlockDriverState *bs,
}
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE);
ret = bdrv_pwrite_sync(bs->file, table_offset, new_table,
ret = bdrv_pwrite_sync(bs->file->bs, table_offset, new_table,
table_size * sizeof(uint64_t));
if (ret < 0) {
goto fail_table;
@@ -564,8 +564,9 @@ static int alloc_refcount_block(BlockDriverState *bs,
cpu_to_be64w((uint64_t*)data, table_offset);
cpu_to_be32w((uint32_t*)(data + 8), table_clusters);
BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, refcount_table_offset),
data, sizeof(data));
ret = bdrv_pwrite_sync(bs->file->bs,
offsetof(QCowHeader, refcount_table_offset),
data, sizeof(data));
if (ret < 0) {
goto fail_table;
}
@@ -613,7 +614,7 @@ void qcow2_process_discards(BlockDriverState *bs, int ret)
/* Discard is optional, ignore the return value */
if (ret >= 0) {
bdrv_discard(bs->file,
bdrv_discard(bs->file->bs,
d->offset >> BDRV_SECTOR_BITS,
d->bytes >> BDRV_SECTOR_BITS);
}
@@ -1068,7 +1069,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
}
l1_allocated = true;
ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2);
ret = bdrv_pread(bs->file->bs, l1_table_offset, l1_table, l1_size2);
if (ret < 0) {
goto fail;
}
@@ -1221,7 +1222,8 @@ fail:
cpu_to_be64s(&l1_table[i]);
}
ret = bdrv_pwrite_sync(bs->file, l1_table_offset, l1_table, l1_size2);
ret = bdrv_pwrite_sync(bs->file->bs, l1_table_offset,
l1_table, l1_size2);
for (i = 0; i < l1_size; i++) {
be64_to_cpus(&l1_table[i]);
@@ -1376,7 +1378,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res,
l2_size = s->l2_size * sizeof(uint64_t);
l2_table = g_malloc(l2_size);
ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size);
ret = bdrv_pread(bs->file->bs, l2_offset, l2_table, l2_size);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n");
res->check_errors++;
@@ -1508,7 +1510,7 @@ static int check_refcounts_l1(BlockDriverState *bs,
res->check_errors++;
goto fail;
}
ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2);
ret = bdrv_pread(bs->file->bs, l1_table_offset, l1_table, l1_size2);
if (ret < 0) {
fprintf(stderr, "ERROR: I/O error in check_refcounts_l1\n");
res->check_errors++;
@@ -1606,7 +1608,7 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
}
}
ret = bdrv_pread(bs->file, l2_offset, l2_table,
ret = bdrv_pread(bs->file->bs, l2_offset, l2_table,
s->l2_size * sizeof(uint64_t));
if (ret < 0) {
fprintf(stderr, "ERROR: Could not read L2 table: %s\n",
@@ -1658,7 +1660,8 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res,
goto fail;
}
ret = bdrv_pwrite(bs->file, l2_offset, l2_table, s->cluster_size);
ret = bdrv_pwrite(bs->file->bs, l2_offset, l2_table,
s->cluster_size);
if (ret < 0) {
fprintf(stderr, "ERROR: Could not write L2 table: %s\n",
strerror(-ret));
@@ -1713,11 +1716,11 @@ static int check_refblocks(BlockDriverState *bs, BdrvCheckResult *res,
goto resize_fail;
}
ret = bdrv_truncate(bs->file, offset + s->cluster_size);
ret = bdrv_truncate(bs->file->bs, offset + s->cluster_size);
if (ret < 0) {
goto resize_fail;
}
size = bdrv_getlength(bs->file);
size = bdrv_getlength(bs->file->bs);
if (size < 0) {
ret = size;
goto resize_fail;
@@ -2091,7 +2094,7 @@ write_refblocks:
on_disk_refblock = (void *)((char *) *refcount_table +
refblock_index * s->cluster_size);
ret = bdrv_write(bs->file, refblock_offset / BDRV_SECTOR_SIZE,
ret = bdrv_write(bs->file->bs, refblock_offset / BDRV_SECTOR_SIZE,
on_disk_refblock, s->cluster_sectors);
if (ret < 0) {
fprintf(stderr, "ERROR writing refblock: %s\n", strerror(-ret));
@@ -2140,7 +2143,7 @@ write_refblocks:
}
assert(reftable_size < INT_MAX / sizeof(uint64_t));
ret = bdrv_pwrite(bs->file, reftable_offset, on_disk_reftable,
ret = bdrv_pwrite(bs->file->bs, reftable_offset, on_disk_reftable,
reftable_size * sizeof(uint64_t));
if (ret < 0) {
fprintf(stderr, "ERROR writing reftable: %s\n", strerror(-ret));
@@ -2152,8 +2155,8 @@ write_refblocks:
reftable_offset);
cpu_to_be32w(&reftable_offset_and_clusters.reftable_clusters,
size_to_clusters(s, reftable_size * sizeof(uint64_t)));
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader,
refcount_table_offset),
ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader,
refcount_table_offset),
&reftable_offset_and_clusters,
sizeof(reftable_offset_and_clusters));
if (ret < 0) {
@@ -2191,7 +2194,7 @@ int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
bool rebuild = false;
int ret;
size = bdrv_getlength(bs->file);
size = bdrv_getlength(bs->file->bs);
if (size < 0) {
res->check_errors++;
return size;
@@ -2400,7 +2403,7 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset,
return -ENOMEM;
}
ret = bdrv_pread(bs->file, l1_ofs, l1, l1_sz2);
ret = bdrv_pread(bs->file->bs, l1_ofs, l1, l1_sz2);
if (ret < 0) {
g_free(l1);
return ret;
block/qcow2-snapshot.c
+16 -14
View File
@@ -64,7 +64,7 @@ int qcow2_read_snapshots(BlockDriverState *bs)
for(i = 0; i < s->nb_snapshots; i++) {
/* Read statically sized part of the snapshot header */
offset = align_offset(offset, 8);
ret = bdrv_pread(bs->file, offset, &h, sizeof(h));
ret = bdrv_pread(bs->file->bs, offset, &h, sizeof(h));
if (ret < 0) {
goto fail;
}
@@ -83,7 +83,7 @@ int qcow2_read_snapshots(BlockDriverState *bs)
name_size = be16_to_cpu(h.name_size);
/* Read extra data */
ret = bdrv_pread(bs->file, offset, &extra,
ret = bdrv_pread(bs->file->bs, offset, &extra,
MIN(sizeof(extra), extra_data_size));
if (ret < 0) {
goto fail;
@@ -102,7 +102,7 @@ int qcow2_read_snapshots(BlockDriverState *bs)
/* Read snapshot ID */
sn->id_str = g_malloc(id_str_size + 1);
ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size);
ret = bdrv_pread(bs->file->bs, offset, sn->id_str, id_str_size);
if (ret < 0) {
goto fail;
}
@@ -111,7 +111,7 @@ int qcow2_read_snapshots(BlockDriverState *bs)
/* Read snapshot name */
sn->name = g_malloc(name_size + 1);
ret = bdrv_pread(bs->file, offset, sn->name, name_size);
ret = bdrv_pread(bs->file->bs, offset, sn->name, name_size);
if (ret < 0) {
goto fail;
}
@@ -214,25 +214,25 @@ static int qcow2_write_snapshots(BlockDriverState *bs)
h.name_size = cpu_to_be16(name_size);
offset = align_offset(offset, 8);
ret = bdrv_pwrite(bs->file, offset, &h, sizeof(h));
ret = bdrv_pwrite(bs->file->bs, offset, &h, sizeof(h));
if (ret < 0) {
goto fail;
}
offset += sizeof(h);
ret = bdrv_pwrite(bs->file, offset, &extra, sizeof(extra));
ret = bdrv_pwrite(bs->file->bs, offset, &extra, sizeof(extra));
if (ret < 0) {
goto fail;
}
offset += sizeof(extra);
ret = bdrv_pwrite(bs->file, offset, sn->id_str, id_str_size);
ret = bdrv_pwrite(bs->file->bs, offset, sn->id_str, id_str_size);
if (ret < 0) {
goto fail;
}
offset += id_str_size;
ret = bdrv_pwrite(bs->file, offset, sn->name, name_size);
ret = bdrv_pwrite(bs->file->bs, offset, sn->name, name_size);
if (ret < 0) {
goto fail;
}
@@ -254,7 +254,7 @@ static int qcow2_write_snapshots(BlockDriverState *bs)
header_data.nb_snapshots = cpu_to_be32(s->nb_snapshots);
header_data.snapshots_offset = cpu_to_be64(snapshots_offset);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots),
ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, nb_snapshots),
&header_data, sizeof(header_data));
if (ret < 0) {
goto fail;
@@ -396,7 +396,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
goto fail;
}
ret = bdrv_pwrite(bs->file, sn->l1_table_offset, l1_table,
ret = bdrv_pwrite(bs->file->bs, sn->l1_table_offset, l1_table,
s->l1_size * sizeof(uint64_t));
if (ret < 0) {
goto fail;
@@ -509,7 +509,8 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto fail;
}
ret = bdrv_pread(bs->file, sn->l1_table_offset, sn_l1_table, sn_l1_bytes);
ret = bdrv_pread(bs->file->bs, sn->l1_table_offset,
sn_l1_table, sn_l1_bytes);
if (ret < 0) {
goto fail;
}
@@ -526,7 +527,7 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id)
goto fail;
}
ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset, sn_l1_table,
ret = bdrv_pwrite_sync(bs->file->bs, s->l1_table_offset, sn_l1_table,
cur_l1_bytes);
if (ret < 0) {
goto fail;
@@ -706,13 +707,14 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs,
return -EFBIG;
}
new_l1_bytes = sn->l1_size * sizeof(uint64_t);
new_l1_table = qemu_try_blockalign(bs->file,
new_l1_table = qemu_try_blockalign(bs->file->bs,
align_offset(new_l1_bytes, 512));
if (new_l1_table == NULL) {
return -ENOMEM;
}
ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_table, new_l1_bytes);
ret = bdrv_pread(bs->file->bs, sn->l1_table_offset,
new_l1_table, new_l1_bytes);
if (ret < 0) {
error_setg(errp, "Failed to read l1 table for snapshot");
qemu_vfree(new_l1_table);
block/qcow2.c
+35 -33
View File
@@ -104,7 +104,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
printf("attempting to read extended header in offset %lu\n", offset);
#endif
ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext));
ret = bdrv_pread(bs->file->bs, offset, &ext, sizeof(ext));
if (ret < 0) {
error_setg_errno(errp, -ret, "qcow2_read_extension: ERROR: "
"pread fail from offset %" PRIu64, offset);
@@ -132,7 +132,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
sizeof(bs->backing_format));
return 2;
}
ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len);
ret = bdrv_pread(bs->file->bs, offset, bs->backing_format, ext.len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_backing_format: "
"Could not read format name");
@@ -148,7 +148,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_FEATURE_TABLE:
if (p_feature_table != NULL) {
void* feature_table = g_malloc0(ext.len + 2 * sizeof(Qcow2Feature));
ret = bdrv_pread(bs->file, offset , feature_table, ext.len);
ret = bdrv_pread(bs->file->bs, offset , feature_table, ext.len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_feature_table: "
"Could not read table");
@@ -169,7 +169,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
uext->len = ext.len;
QLIST_INSERT_HEAD(&s->unknown_header_ext, uext, next);
ret = bdrv_pread(bs->file, offset , uext->data, uext->len);
ret = bdrv_pread(bs->file->bs, offset , uext->data, uext->len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: unknown extension: "
"Could not read data");
@@ -260,12 +260,12 @@ int qcow2_mark_dirty(BlockDriverState *bs)
}
val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
ret = bdrv_pwrite(bs->file->bs, offsetof(QCowHeader, incompatible_features),
&val, sizeof(val));
if (ret < 0) {
return ret;
}
ret = bdrv_flush(bs->file);
ret = bdrv_flush(bs->file->bs);
if (ret < 0) {
return ret;
}
@@ -828,7 +828,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
uint64_t ext_end;
uint64_t l1_vm_state_index;
ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
ret = bdrv_pread(bs->file->bs, 0, &header, sizeof(header));
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read qcow2 header");
goto fail;
@@ -903,7 +903,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
if (header.header_length > sizeof(header)) {
s->unknown_header_fields_size = header.header_length - sizeof(header);
s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);
ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,
ret = bdrv_pread(bs->file->bs, sizeof(header), s->unknown_header_fields,
s->unknown_header_fields_size);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read unknown qcow2 header "
@@ -1056,14 +1056,14 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
if (s->l1_size > 0) {
s->l1_table = qemu_try_blockalign(bs->file,
s->l1_table = qemu_try_blockalign(bs->file->bs,
align_offset(s->l1_size * sizeof(uint64_t), 512));
if (s->l1_table == NULL) {
error_setg(errp, "Could not allocate L1 table");
ret = -ENOMEM;
goto fail;
}
ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
ret = bdrv_pread(bs->file->bs, s->l1_table_offset, s->l1_table,
s->l1_size * sizeof(uint64_t));
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read L1 table");
@@ -1082,7 +1082,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
s->cluster_cache = g_malloc(s->cluster_size);
/* one more sector for decompressed data alignment */
s->cluster_data = qemu_try_blockalign(bs->file, QCOW_MAX_CRYPT_CLUSTERS
s->cluster_data = qemu_try_blockalign(bs->file->bs, QCOW_MAX_CRYPT_CLUSTERS
* s->cluster_size + 512);
if (s->cluster_data == NULL) {
error_setg(errp, "Could not allocate temporary cluster buffer");
@@ -1119,7 +1119,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
ret = -EINVAL;
goto fail;
}
ret = bdrv_pread(bs->file, header.backing_file_offset,
ret = bdrv_pread(bs->file->bs, header.backing_file_offset,
bs->backing_file, len);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read backing file name");
@@ -1369,9 +1369,9 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num,
switch (ret) {
case QCOW2_CLUSTER_UNALLOCATED:
if (bs->backing_hd) {
if (bs->backing) {
/* read from the base image */
n1 = qcow2_backing_read1(bs->backing_hd, &hd_qiov,
n1 = qcow2_backing_read1(bs->backing->bs, &hd_qiov,
sector_num, cur_nr_sectors);
if (n1 > 0) {
QEMUIOVector local_qiov;
@@ -1382,7 +1382,7 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num,
BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO);
qemu_co_mutex_unlock(&s->lock);
ret = bdrv_co_readv(bs->backing_hd, sector_num,
ret = bdrv_co_readv(bs->backing->bs, sector_num,
n1, &local_qiov);
qemu_co_mutex_lock(&s->lock);
@@ -1429,8 +1429,9 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num,
*/
if (!cluster_data) {
cluster_data =
qemu_try_blockalign(bs->file, QCOW_MAX_CRYPT_CLUSTERS
* s->cluster_size);
qemu_try_blockalign(bs->file->bs,
QCOW_MAX_CRYPT_CLUSTERS
* s->cluster_size);
if (cluster_data == NULL) {
ret = -ENOMEM;
goto fail;
@@ -1446,7 +1447,7 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num,
BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);
qemu_co_mutex_unlock(&s->lock);
ret = bdrv_co_readv(bs->file,
ret = bdrv_co_readv(bs->file->bs,
(cluster_offset >> 9) + index_in_cluster,
cur_nr_sectors, &hd_qiov);
qemu_co_mutex_lock(&s->lock);
@@ -1543,7 +1544,7 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs,
Error *err = NULL;
assert(s->cipher);
if (!cluster_data) {
cluster_data = qemu_try_blockalign(bs->file,
cluster_data = qemu_try_blockalign(bs->file->bs,
QCOW_MAX_CRYPT_CLUSTERS
* s->cluster_size);
if (cluster_data == NULL) {
@@ -1580,7 +1581,7 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs,
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
trace_qcow2_writev_data(qemu_coroutine_self(),
(cluster_offset >> 9) + index_in_cluster);
ret = bdrv_co_writev(bs->file,
ret = bdrv_co_writev(bs->file->bs,
(cluster_offset >> 9) + index_in_cluster,
cur_nr_sectors, &hd_qiov);
qemu_co_mutex_lock(&s->lock);
@@ -1703,7 +1704,7 @@ static void qcow2_invalidate_cache(BlockDriverState *bs, Error **errp)
qcow2_close(bs);
bdrv_invalidate_cache(bs->file, &local_err);
bdrv_invalidate_cache(bs->file->bs, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -1911,7 +1912,7 @@ int qcow2_update_header(BlockDriverState *bs)
}
/* Write the new header */
ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size);
ret = bdrv_pwrite(bs->file->bs, 0, header, s->cluster_size);
if (ret < 0) {
goto fail;
}
@@ -1991,7 +1992,8 @@ static int preallocate(BlockDriverState *bs)
if (host_offset != 0) {
uint8_t buf[BDRV_SECTOR_SIZE];
memset(buf, 0, BDRV_SECTOR_SIZE);
ret = bdrv_write(bs->file, (host_offset >> BDRV_SECTOR_BITS) + num - 1,
ret = bdrv_write(bs->file->bs,
(host_offset >> BDRV_SECTOR_BITS) + num - 1,
buf, 1);
if (ret < 0) {
return ret;
@@ -2403,7 +2405,7 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset)
/* write updated header.size */
offset = cpu_to_be64(offset);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, size),
&offset, sizeof(uint64_t));
if (ret < 0) {
return ret;
@@ -2427,8 +2429,8 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num,
if (nb_sectors == 0) {
/* align end of file to a sector boundary to ease reading with
sector based I/Os */
cluster_offset = bdrv_getlength(bs->file);
return bdrv_truncate(bs->file, cluster_offset);
cluster_offset = bdrv_getlength(bs->file->bs);
return bdrv_truncate(bs->file->bs, cluster_offset);
}
if (nb_sectors != s->cluster_sectors) {
@@ -2495,7 +2497,7 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num,
}
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_COMPRESSED);
ret = bdrv_pwrite(bs->file, cluster_offset, out_buf, out_len);
ret = bdrv_pwrite(bs->file->bs, cluster_offset, out_buf, out_len);
if (ret < 0) {
goto fail;
}
@@ -2544,7 +2546,7 @@ static int make_completely_empty(BlockDriverState *bs)
/* After this call, neither the in-memory nor the on-disk refcount
* information accurately describe the actual references */
ret = bdrv_write_zeroes(bs->file, s->l1_table_offset / BDRV_SECTOR_SIZE,
ret = bdrv_write_zeroes(bs->file->bs, s->l1_table_offset / BDRV_SECTOR_SIZE,
l1_clusters * s->cluster_sectors, 0);
if (ret < 0) {
goto fail_broken_refcounts;
@@ -2558,7 +2560,7 @@ static int make_completely_empty(BlockDriverState *bs)
* overwrite parts of the existing refcount and L1 table, which is not
* an issue because the dirty flag is set, complete data loss is in fact
* desired and partial data loss is consequently fine as well */
ret = bdrv_write_zeroes(bs->file, s->cluster_size / BDRV_SECTOR_SIZE,
ret = bdrv_write_zeroes(bs->file->bs, s->cluster_size / BDRV_SECTOR_SIZE,
(2 + l1_clusters) * s->cluster_size /
BDRV_SECTOR_SIZE, 0);
/* This call (even if it failed overall) may have overwritten on-disk
@@ -2578,7 +2580,7 @@ static int make_completely_empty(BlockDriverState *bs)
cpu_to_be64w(&l1_ofs_rt_ofs_cls.l1_offset, 3 * s->cluster_size);
cpu_to_be64w(&l1_ofs_rt_ofs_cls.reftable_offset, s->cluster_size);
cpu_to_be32w(&l1_ofs_rt_ofs_cls.reftable_clusters, 1);
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_table_offset),
ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, l1_table_offset),
&l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls));
if (ret < 0) {
goto fail_broken_refcounts;
@@ -2609,7 +2611,7 @@ static int make_completely_empty(BlockDriverState *bs)
/* Enter the first refblock into the reftable */
rt_entry = cpu_to_be64(2 * s->cluster_size);
ret = bdrv_pwrite_sync(bs->file, s->cluster_size,
ret = bdrv_pwrite_sync(bs->file->bs, s->cluster_size,
&rt_entry, sizeof(rt_entry));
if (ret < 0) {
goto fail_broken_refcounts;
@@ -2634,7 +2636,7 @@ 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->bs, (3 + l1_clusters) * s->cluster_size);
if (ret < 0) {
goto fail;
}
@@ -2769,7 +2771,7 @@ static void dump_refcounts(BlockDriverState *bs)
int64_t nb_clusters, k, k1, size;
int refcount;
size = bdrv_getlength(bs->file);
size = bdrv_getlength(bs->file->bs);
nb_clusters = size_to_clusters(s, size);
for(k = 0; k < nb_clusters;) {
k1 = k;
block/qcow2.h
-2
View File
@@ -295,8 +295,6 @@ typedef struct BDRVQcow2State {
char *image_backing_format;
} BDRVQcow2State;
struct QCowAIOCB;
typedef struct Qcow2COWRegion {
/**
* Offset of the COW region in bytes from the start of the first cluster
block/qed-table.c
+2 -2
View File
@@ -63,7 +63,7 @@ static void qed_read_table(BDRVQEDState *s, uint64_t offset, QEDTable *table,
read_table_cb->iov.iov_len = s->header.cluster_size * s->header.table_size,
qemu_iovec_init_external(qiov, &read_table_cb->iov, 1);
bdrv_aio_readv(s->bs->file, offset / BDRV_SECTOR_SIZE, qiov,
bdrv_aio_readv(s->bs->file->bs, offset / BDRV_SECTOR_SIZE, qiov,
qiov->size / BDRV_SECTOR_SIZE,
qed_read_table_cb, read_table_cb);
}
@@ -152,7 +152,7 @@ static void qed_write_table(BDRVQEDState *s, uint64_t offset, QEDTable *table,
/* Adjust for offset into table */
offset += start * sizeof(uint64_t);
bdrv_aio_writev(s->bs->file, offset / BDRV_SECTOR_SIZE,
bdrv_aio_writev(s->bs->file->bs, offset / BDRV_SECTOR_SIZE,
&write_table_cb->qiov,
write_table_cb->qiov.size / BDRV_SECTOR_SIZE,
qed_write_table_cb, write_table_cb);
block/qed.c
+22 -29
View File
@@ -82,7 +82,7 @@ int qed_write_header_sync(BDRVQEDState *s)
int ret;
qed_header_cpu_to_le(&s->header, &le);
ret = bdrv_pwrite(s->bs->file, 0, &le, sizeof(le));
ret = bdrv_pwrite(s->bs->file->bs, 0, &le, sizeof(le));
if (ret != sizeof(le)) {
return ret;
}
@@ -119,7 +119,7 @@ static void qed_write_header_read_cb(void *opaque, int ret)
/* Update header */
qed_header_cpu_to_le(&s->header, (QEDHeader *)write_header_cb->buf);
bdrv_aio_writev(s->bs->file, 0, &write_header_cb->qiov,
bdrv_aio_writev(s->bs->file->bs, 0, &write_header_cb->qiov,
write_header_cb->nsectors, qed_write_header_cb,
write_header_cb);
}
@@ -152,7 +152,7 @@ static void qed_write_header(BDRVQEDState *s, BlockCompletionFunc cb,
write_header_cb->iov.iov_len = len;
qemu_iovec_init_external(&write_header_cb->qiov, &write_header_cb->iov, 1);
bdrv_aio_readv(s->bs->file, 0, &write_header_cb->qiov, nsectors,
bdrv_aio_readv(s->bs->file->bs, 0, &write_header_cb->qiov, nsectors,
qed_write_header_read_cb, write_header_cb);
}
@@ -354,12 +354,6 @@ static void qed_cancel_need_check_timer(BDRVQEDState *s)
timer_del(s->need_check_timer);
}
static void bdrv_qed_rebind(BlockDriverState *bs)
{
BDRVQEDState *s = bs->opaque;
s->bs = bs;
}
static void bdrv_qed_detach_aio_context(BlockDriverState *bs)
{
BDRVQEDState *s = bs->opaque;
@@ -392,7 +386,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
s->bs = bs;
QSIMPLEQ_INIT(&s->allocating_write_reqs);
ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header));
ret = bdrv_pread(bs->file->bs, 0, &le_header, sizeof(le_header));
if (ret < 0) {
return ret;
}
@@ -416,7 +410,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
}
/* Round down file size to the last cluster */
file_size = bdrv_getlength(bs->file);
file_size = bdrv_getlength(bs->file->bs);
if (file_size < 0) {
return file_size;
}
@@ -452,7 +446,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
ret = qed_read_string(bs->file, s->header.backing_filename_offset,
ret = qed_read_string(bs->file->bs, s->header.backing_filename_offset,
s->header.backing_filename_size, bs->backing_file,
sizeof(bs->backing_file));
if (ret < 0) {
@@ -471,7 +465,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
* feature is no longer valid.
*/
if ((s->header.autoclear_features & ~QED_AUTOCLEAR_FEATURE_MASK) != 0 &&
!bdrv_is_read_only(bs->file) && !(flags & BDRV_O_INCOMING)) {
!bdrv_is_read_only(bs->file->bs) && !(flags & BDRV_O_INCOMING)) {
s->header.autoclear_features &= QED_AUTOCLEAR_FEATURE_MASK;
ret = qed_write_header_sync(s);
@@ -480,7 +474,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
}
/* From here on only known autoclear feature bits are valid */
bdrv_flush(bs->file);
bdrv_flush(bs->file->bs);
}
s->l1_table = qed_alloc_table(s);
@@ -498,7 +492,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
* potentially inconsistent images to be opened read-only. This can
* aid data recovery from an otherwise inconsistent image.
*/
if (!bdrv_is_read_only(bs->file) &&
if (!bdrv_is_read_only(bs->file->bs) &&
!(flags & BDRV_O_INCOMING)) {
BdrvCheckResult result = {0};
@@ -541,7 +535,7 @@ static void bdrv_qed_close(BlockDriverState *bs)
bdrv_qed_detach_aio_context(bs);
/* Ensure writes reach stable storage */
bdrv_flush(bs->file);
bdrv_flush(bs->file->bs);
/* Clean shutdown, no check required on next open */
if (s->header.features & QED_F_NEED_CHECK) {
@@ -772,8 +766,8 @@ static void qed_read_backing_file(BDRVQEDState *s, uint64_t pos,
/* If there is a backing file, get its length. Treat the absence of a
* backing file like a zero length backing file.
*/
if (s->bs->backing_hd) {
int64_t l = bdrv_getlength(s->bs->backing_hd);
if (s->bs->backing) {
int64_t l = bdrv_getlength(s->bs->backing->bs);
if (l < 0) {
cb(opaque, l);
return;
@@ -802,7 +796,7 @@ static void qed_read_backing_file(BDRVQEDState *s, uint64_t pos,
qemu_iovec_concat(*backing_qiov, qiov, 0, size);
BLKDBG_EVENT(s->bs->file, BLKDBG_READ_BACKING_AIO);
bdrv_aio_readv(s->bs->backing_hd, pos / BDRV_SECTOR_SIZE,
bdrv_aio_readv(s->bs->backing->bs, pos / BDRV_SECTOR_SIZE,
*backing_qiov, size / BDRV_SECTOR_SIZE, cb, opaque);
}
@@ -839,7 +833,7 @@ static void qed_copy_from_backing_file_write(void *opaque, int ret)
}
BLKDBG_EVENT(s->bs->file, BLKDBG_COW_WRITE);
bdrv_aio_writev(s->bs->file, copy_cb->offset / BDRV_SECTOR_SIZE,
bdrv_aio_writev(s->bs->file->bs, copy_cb->offset / BDRV_SECTOR_SIZE,
&copy_cb->qiov, copy_cb->qiov.size / BDRV_SECTOR_SIZE,
qed_copy_from_backing_file_cb, copy_cb);
}
@@ -1055,7 +1049,7 @@ static void qed_aio_write_flush_before_l2_update(void *opaque, int ret)
QEDAIOCB *acb = opaque;
BDRVQEDState *s = acb_to_s(acb);
if (!bdrv_aio_flush(s->bs->file, qed_aio_write_l2_update_cb, opaque)) {
if (!bdrv_aio_flush(s->bs->file->bs, qed_aio_write_l2_update_cb, opaque)) {
qed_aio_complete(acb, -EIO);
}
}
@@ -1081,7 +1075,7 @@ static void qed_aio_write_main(void *opaque, int ret)
if (acb->find_cluster_ret == QED_CLUSTER_FOUND) {
next_fn = qed_aio_next_io;
} else {
if (s->bs->backing_hd) {
if (s->bs->backing) {
next_fn = qed_aio_write_flush_before_l2_update;
} else {
next_fn = qed_aio_write_l2_update_cb;
@@ -1089,7 +1083,7 @@ static void qed_aio_write_main(void *opaque, int ret)
}
BLKDBG_EVENT(s->bs->file, BLKDBG_WRITE_AIO);
bdrv_aio_writev(s->bs->file, offset / BDRV_SECTOR_SIZE,
bdrv_aio_writev(s->bs->file->bs, offset / BDRV_SECTOR_SIZE,
&acb->cur_qiov, acb->cur_qiov.size / BDRV_SECTOR_SIZE,
next_fn, acb);
}
@@ -1139,7 +1133,7 @@ static void qed_aio_write_prefill(void *opaque, int ret)
static bool qed_should_set_need_check(BDRVQEDState *s)
{
/* The flush before L2 update path ensures consistency */
if (s->bs->backing_hd) {
if (s->bs->backing) {
return false;
}
@@ -1321,7 +1315,7 @@ static void qed_aio_read_data(void *opaque, int ret,
}
BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);
bdrv_aio_readv(bs->file, offset / BDRV_SECTOR_SIZE,
bdrv_aio_readv(bs->file->bs, offset / BDRV_SECTOR_SIZE,
&acb->cur_qiov, acb->cur_qiov.size / BDRV_SECTOR_SIZE,
qed_aio_next_io, acb);
return;
@@ -1443,7 +1437,7 @@ static int coroutine_fn bdrv_qed_co_write_zeroes(BlockDriverState *bs,
struct iovec iov;
/* Refuse if there are untouched backing file sectors */
if (bs->backing_hd) {
if (bs->backing) {
if (qed_offset_into_cluster(s, sector_num * BDRV_SECTOR_SIZE) != 0) {
return -ENOTSUP;
}
@@ -1580,7 +1574,7 @@ static int bdrv_qed_change_backing_file(BlockDriverState *bs,
}
/* Write new header */
ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len);
ret = bdrv_pwrite_sync(bs->file->bs, 0, buffer, buffer_len);
g_free(buffer);
if (ret == 0) {
memcpy(&s->header, &new_header, sizeof(new_header));
@@ -1596,7 +1590,7 @@ static void bdrv_qed_invalidate_cache(BlockDriverState *bs, Error **errp)
bdrv_qed_close(bs);
bdrv_invalidate_cache(bs->file, &local_err);
bdrv_invalidate_cache(bs->file->bs, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -1664,7 +1658,6 @@ static BlockDriver bdrv_qed = {
.supports_backing = true,
.bdrv_probe = bdrv_qed_probe,
.bdrv_rebind = bdrv_qed_rebind,
.bdrv_open = bdrv_qed_open,
.bdrv_close = bdrv_qed_close,
.bdrv_reopen_prepare = bdrv_qed_reopen_prepare,

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