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| author | Hao Xu <howeyxu@tencent.com> | 2022-06-16 10:22:02 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-24 18:39:13 -0600 |
| commit | 38513c464d3d45b4088c82f6e42d9cdbc5ee57e6 (patch) | |
| tree | defce3565cffbddce9dda6a8466298939015584c /io_uring/cancel.h | |
| parent | 3654ab0c51a91036d15dd2fd9c2809317edf2228 (diff) | |
| download | linux-stable-38513c464d3d45b4088c82f6e42d9cdbc5ee57e6.tar.gz linux-stable-38513c464d3d45b4088c82f6e42d9cdbc5ee57e6.tar.bz2 linux-stable-38513c464d3d45b4088c82f6e42d9cdbc5ee57e6.zip | |
io_uring: switch cancel_hash to use per entry spinlock
Add a new io_hash_bucket structure so that each bucket in cancel_hash
has separate spinlock. Use per entry lock for cancel_hash, this removes
some completion lock invocation and remove contension between different
cancel_hash entries.
Signed-off-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/05d1e135b0c8bce9d1441e6346776589e5783e26.1655371007.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/cancel.h')
| -rw-r--r-- | io_uring/cancel.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/io_uring/cancel.h b/io_uring/cancel.h index 4f35d8696325..556a7dcf160e 100644 --- a/io_uring/cancel.h +++ b/io_uring/cancel.h @@ -4,3 +4,9 @@ int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags); int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd); +void init_hash_table(struct io_hash_bucket *hash_table, unsigned size); + +struct io_hash_bucket { + spinlock_t lock; + struct hlist_head list; +} ____cacheline_aligned_in_smp; |