riscv
/
qemu
mirror of https://gitea.goldendeliverer.com/riscv/qemu.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

block-backend: replace bdrv_*_above with blk_*_above 

Avoid mixing bdrv_* functions with blk_*, so create blk_* counterparts
for bdrv_block_status_above and bdrv_is_allocated_above.

Note that since blk_co_block_status_above only calls the g_c_w function
bdrv_common_block_status_above and is marked as coroutine_fn, call
directly bdrv_co_common_block_status_above() to avoid using a g_c_w.
Same applies to blk_co_is_allocated_above.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20221128142337.657646-5-eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
pull/228/head
Emanuele Giuseppe Esposito 3 years ago
committed by Kevin Wolf
parent
6f58ac5539
commit
ff7e261bb9
4 changed files with 48 additions and 18 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 21
      block/block-backend.c
  2. 4
      block/commit.c
  3. 9
      include/sysemu/block-backend-io.h
  4. 32
      nbd/server.c

21
block/block-backend.c
View File

@ -1424,6 +1424,27 @@ int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
return blk_co_pwritev_part(blk, offset, bytes, qiov, 0, flags);
}
int coroutine_fn blk_co_block_status_above(BlockBackend *blk,
BlockDriverState *base,
int64_t offset, int64_t bytes,
int64_t *pnum, int64_t *map,
BlockDriverState **file)
{
IO_CODE();
return bdrv_co_block_status_above(blk_bs(blk), base, offset, bytes, pnum,
map, file);
}
int coroutine_fn blk_co_is_allocated_above(BlockBackend *blk,
BlockDriverState *base,
bool include_base, int64_t offset,
int64_t bytes, int64_t *pnum)
{
IO_CODE();
return bdrv_co_is_allocated_above(blk_bs(blk), base, include_base, offset,
bytes, pnum);
}
typedef struct BlkRwCo {
BlockBackend *blk;
int64_t offset;

4
block/commit.c
View File

@ -155,8 +155,8 @@ static int coroutine_fn commit_run(Job *job, Error **errp)
break;
}
/* Copy if allocated above the base */
ret = bdrv_is_allocated_above(blk_bs(s->top), s->base_overlay, true,
offset, COMMIT_BUFFER_SIZE, &n);
ret = blk_co_is_allocated_above(s->top, s->base_overlay, true,
offset, COMMIT_BUFFER_SIZE, &n);
copy = (ret > 0);
trace_commit_one_iteration(s, offset, n, ret);
if (copy) {

9
include/sysemu/block-backend-io.h
View File

@ -92,6 +92,15 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
int64_t bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
int coroutine_fn blk_co_block_status_above(BlockBackend *blk,
BlockDriverState *base,
int64_t offset, int64_t bytes,
int64_t *pnum, int64_t *map,
BlockDriverState **file);
int coroutine_fn blk_co_is_allocated_above(BlockBackend *blk,
BlockDriverState *base,
bool include_base, int64_t offset,
int64_t bytes, int64_t *pnum);
/*
* "I/O or GS" API functions. These functions can run without

32
nbd/server.c
View File

@ -1988,7 +1988,7 @@ static int coroutine_fn nbd_co_send_structured_error(NBDClient *client,
}
/* Do a sparse read and send the structured reply to the client.
* Returns -errno if sending fails. bdrv_block_status_above() failure is
* Returns -errno if sending fails. blk_co_block_status_above() failure is
* reported to the client, at which point this function succeeds.
*/
static int coroutine_fn nbd_co_send_sparse_read(NBDClient *client,
@ -2004,10 +2004,10 @@ static int coroutine_fn nbd_co_send_sparse_read(NBDClient *client,
while (progress < size) {
int64_t pnum;
int status = bdrv_block_status_above(blk_bs(exp->common.blk), NULL,
offset + progress,
size - progress, &pnum, NULL,
NULL);
int status = blk_co_block_status_above(exp->common.blk, NULL,
offset + progress,
size - progress, &pnum, NULL,
NULL);
bool final;
if (status < 0) {
@ -2138,15 +2138,15 @@ static int nbd_extent_array_add(NBDExtentArray *ea,
return 0;
}
static int coroutine_fn blockstatus_to_extents(BlockDriverState *bs,
static int coroutine_fn blockstatus_to_extents(BlockBackend *blk,
uint64_t offset, uint64_t bytes,
NBDExtentArray *ea)
{
while (bytes) {
uint32_t flags;
int64_t num;
int ret = bdrv_co_block_status_above(bs, NULL, offset, bytes, &num,
NULL, NULL);
int ret = blk_co_block_status_above(blk, NULL, offset, bytes, &num,
NULL, NULL);
if (ret < 0) {
return ret;
@ -2166,14 +2166,14 @@ static int coroutine_fn blockstatus_to_extents(BlockDriverState *bs,
return 0;
}
static int coroutine_fn blockalloc_to_extents(BlockDriverState *bs,
static int coroutine_fn blockalloc_to_extents(BlockBackend *blk,
uint64_t offset, uint64_t bytes,
NBDExtentArray *ea)
{
while (bytes) {
int64_t num;
int ret = bdrv_co_is_allocated_above(bs, NULL, false, offset, bytes,
&num);
int ret = blk_co_is_allocated_above(blk, NULL, false, offset, bytes,
&num);
if (ret < 0) {
return ret;
@ -2221,7 +2221,7 @@ static int nbd_co_send_extents(NBDClient *client, uint64_t handle,
/* Get block status from the exported device and send it to the client */
static int
coroutine_fn nbd_co_send_block_status(NBDClient *client, uint64_t handle,
BlockDriverState *bs, uint64_t offset,
BlockBackend *blk, uint64_t offset,
uint32_t length, bool dont_fragment,
bool last, uint32_t context_id,
Error **errp)
@ -2231,9 +2231,9 @@ coroutine_fn nbd_co_send_block_status(NBDClient *client, uint64_t handle,
g_autoptr(NBDExtentArray) ea = nbd_extent_array_new(nb_extents);
if (context_id == NBD_META_ID_BASE_ALLOCATION) {
ret = blockstatus_to_extents(bs, offset, length, ea);
ret = blockstatus_to_extents(blk, offset, length, ea);
} else {
ret = blockalloc_to_extents(bs, offset, length, ea);
ret = blockalloc_to_extents(blk, offset, length, ea);
}
if (ret < 0) {
return nbd_co_send_structured_error(
@ -2560,7 +2560,7 @@ static coroutine_fn int nbd_handle_request(NBDClient *client,
if (client->export_meta.base_allocation) {
ret = nbd_co_send_block_status(client, request->handle,
blk_bs(exp->common.blk),
exp->common.blk,
request->from,
request->len, dont_fragment,
!--contexts_remaining,
@ -2573,7 +2573,7 @@ static coroutine_fn int nbd_handle_request(NBDClient *client,
if (client->export_meta.allocation_depth) {
ret = nbd_co_send_block_status(client, request->handle,
blk_bs(exp->common.blk),
exp->common.blk,
request->from, request->len,
dont_fragment,
!--contexts_remaining,

Write Preview
Loading…
Cancel
Save