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Diffstat (limited to 'block/block-backend.c')
| -rw-r--r-- | block/block-backend.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 3e58b95b8a..b4d2387947 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1719,6 +1719,7 @@ blk_co_do_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes) IO_CODE(); blk_wait_while_drained(blk); + GRAPH_RDLOCK_GUARD(); ret = blk_check_byte_request(blk, offset, bytes); if (ret < 0) { |