diff options
| -rw-r--r-- | block/io.c | 11 | ||||
| -rw-r--r-- | include/block/block.h | 3 | ||||
| -rw-r--r-- | include/block/block_int.h | 9 |
3 files changed, 23 insertions, 0 deletions
diff --git a/block/io.c b/block/io.c index b0435ed670..ca2dca3007 100644 --- a/block/io.c +++ b/block/io.c @@ -3460,3 +3460,14 @@ out: return ret; } + +void bdrv_cancel_in_flight(BlockDriverState *bs) +{ + if (!bs || !bs->drv) { + return; + } + + if (bs->drv->bdrv_cancel_in_flight) { + bs->drv->bdrv_cancel_in_flight(bs); + } +} diff --git a/include/block/block.h b/include/block/block.h index 0a9f2c187c..2f2698074e 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -849,4 +849,7 @@ int coroutine_fn bdrv_co_copy_range(BdrvChild *src, int64_t src_offset, BdrvChild *dst, int64_t dst_offset, int64_t bytes, BdrvRequestFlags read_flags, BdrvRequestFlags write_flags); + +void bdrv_cancel_in_flight(BlockDriverState *bs); + #endif diff --git a/include/block/block_int.h b/include/block/block_int.h index 22a2789d35..88e4111939 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -353,6 +353,15 @@ struct BlockDriver { int64_t *map, BlockDriverState **file); /* + * This informs the driver that we are no longer interested in the result + * of in-flight requests, so don't waste the time if possible. + * + * One example usage is to avoid waiting for an nbd target node reconnect + * timeout during job-cancel. + */ + void (*bdrv_cancel_in_flight)(BlockDriverState *bs); + + /* * Invalidate any cached meta-data. */ void coroutine_fn (*bdrv_co_invalidate_cache)(BlockDriverState *bs, |