diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2022-03-03 20:43:42 +0100 |
|---|---|---|
| committer | Hanna Reitz <hreitz@redhat.com> | 2022-03-07 09:33:30 +0100 |
| commit | 3b7ca26bdf1eb1f9703048831d442adbb103069b (patch) | |
| tree | 8c50aa395aad244b5928888dcbea622a31aa9e93 /include | |
| parent | a6426475a75fb793d4c9dd9fe94815e8d18ddaa1 (diff) | |
block/reqlist: add reqlist_wait_all()
Add function to wait for all intersecting requests.
To be used in the further commit.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nikita Lapshin <nikita.lapshin@virtuozzo.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220303194349.2304213-10-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/reqlist.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/block/reqlist.h b/include/block/reqlist.h index 0fa1eef259..5253497bae 100644 --- a/include/block/reqlist.h +++ b/include/block/reqlist.h @@ -54,6 +54,14 @@ bool coroutine_fn reqlist_wait_one(BlockReqList *reqs, int64_t offset, int64_t bytes, CoMutex *lock); /* + * Wait for all intersecting requests. It just calls reqlist_wait_one() in a + * loop, caller is responsible to stop producing new requests in this region + * in parallel, otherwise reqlist_wait_all() may never return. + */ +void coroutine_fn reqlist_wait_all(BlockReqList *reqs, int64_t offset, + int64_t bytes, CoMutex *lock); + +/* * Shrink request and wake all waiting coroutines (maybe some of them are not * intersecting with shrunk request). */ |