diff options
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 6395393eaf9e..f41d91ce1fd0 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1383,7 +1383,7 @@ static struct io_buffer_list *io_buffer_get_list(struct io_ring_ctx *ctx, return NULL; } -static void io_kbuf_recycle(struct io_kiocb *req) +static void io_kbuf_recycle(struct io_kiocb *req, unsigned issue_flags) { struct io_ring_ctx *ctx = req->ctx; struct io_buffer_list *bl; @@ -1392,6 +1392,9 @@ static void io_kbuf_recycle(struct io_kiocb *req) if (likely(!(req->flags & REQ_F_BUFFER_SELECTED))) return; + if (issue_flags & IO_URING_F_UNLOCKED) + mutex_lock(&ctx->uring_lock); + lockdep_assert_held(&ctx->uring_lock); buf = req->kbuf; @@ -1399,6 +1402,9 @@ static void io_kbuf_recycle(struct io_kiocb *req) list_add(&buf->list, &bl->buf_list); req->flags &= ~REQ_F_BUFFER_SELECTED; req->kbuf = NULL; + + if (issue_flags & IO_URING_F_UNLOCKED) + mutex_unlock(&ctx->uring_lock); } static bool io_match_task(struct io_kiocb *head, struct task_struct *task, @@ -6254,7 +6260,7 @@ static int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags) req->flags |= REQ_F_POLLED; ipt.pt._qproc = io_async_queue_proc; - io_kbuf_recycle(req); + io_kbuf_recycle(req, issue_flags); ret = __io_arm_poll_handler(req, &apoll->poll, &ipt, mask); if (ret || ipt.error) @@ -7504,7 +7510,6 @@ static void io_queue_sqe_arm_apoll(struct io_kiocb *req) * Queued up for async execution, worker will release * submit reference when the iocb is actually submitted. */ - io_kbuf_recycle(req); io_queue_async_work(req, NULL); break; case IO_APOLL_OK: |