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authorKevin Wolf <kwolf@redhat.com>2023-02-03 16:21:54 +0100
committerKevin Wolf <kwolf@redhat.com>2023-02-23 19:49:21 +0100
commit7b9e8b22bca534e0e86915c0856d77a7ae99e160 (patch)
treefe8136f04c3c07ac48b1e586c3e0946c0ebcf6fe /block
parent742bf09b2004a78708f64327d61471fe011ff799 (diff)
block: Mark preadv_snapshot/snapshot_block_status GRAPH_RDLOCK
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20230203152202.49054-16-kwolf@redhat.com> Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/copy-before-write.c6
-rw-r--r--block/io.c2
-rw-r--r--block/snapshot-access.c4
3 files changed, 6 insertions, 6 deletions
diff --git a/block/copy-before-write.c b/block/copy-before-write.c
index e223e37300..646d8227a4 100644
--- a/block/copy-before-write.c
+++ b/block/copy-before-write.c
@@ -256,7 +256,7 @@ cbw_snapshot_read_unlock(BlockDriverState *bs, BlockReq *req)
g_free(req);
}
-static coroutine_fn int
+static int coroutine_fn GRAPH_RDLOCK
cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset)
{
@@ -264,8 +264,6 @@ cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
BdrvChild *file;
int ret;
- assume_graph_lock(); /* FIXME */
-
/* TODO: upgrade to async loop using AioTask */
while (bytes) {
int64_t cur_bytes;
@@ -290,7 +288,7 @@ cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
return 0;
}
-static int coroutine_fn
+static int coroutine_fn GRAPH_RDLOCK
cbw_co_snapshot_block_status(BlockDriverState *bs,
bool want_zero, int64_t offset, int64_t bytes,
int64_t *pnum, int64_t *map,
diff --git a/block/io.c b/block/io.c
index 86e5ea362d..d9c1594960 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3532,6 +3532,7 @@ bdrv_co_preadv_snapshot(BdrvChild *child, int64_t offset, int64_t bytes,
BlockDriver *drv = bs->drv;
int ret;
IO_CODE();
+ assert_bdrv_graph_readable();
if (!drv) {
return -ENOMEDIUM;
@@ -3557,6 +3558,7 @@ bdrv_co_snapshot_block_status(BlockDriverState *bs,
BlockDriver *drv = bs->drv;
int ret;
IO_CODE();
+ assert_bdrv_graph_readable();
if (!drv) {
return -ENOMEDIUM;
diff --git a/block/snapshot-access.c b/block/snapshot-access.c
index 009cc4aea0..67ea339da9 100644
--- a/block/snapshot-access.c
+++ b/block/snapshot-access.c
@@ -26,7 +26,7 @@
#include "qemu/cutils.h"
#include "block/block_int.h"
-static coroutine_fn int
+static int coroutine_fn GRAPH_RDLOCK
snapshot_access_co_preadv_part(BlockDriverState *bs,
int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset,
@@ -39,7 +39,7 @@ snapshot_access_co_preadv_part(BlockDriverState *bs,
return bdrv_co_preadv_snapshot(bs->file, offset, bytes, qiov, qiov_offset);
}
-static int coroutine_fn
+static int coroutine_fn GRAPH_RDLOCK
snapshot_access_co_block_status(BlockDriverState *bs,
bool want_zero, int64_t offset,
int64_t bytes, int64_t *pnum,