diff options
Diffstat (limited to 'io_uring/kbuf.h')
| -rw-r--r-- | io_uring/kbuf.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h index f2d615236b2cb..9be5960817ea1 100644 --- a/io_uring/kbuf.h +++ b/io_uring/kbuf.h @@ -15,6 +15,7 @@ struct io_buffer_list { struct page **buf_pages; struct io_uring_buf_ring *buf_ring; }; + struct rcu_head rcu; }; __u16 bgid; @@ -28,6 +29,8 @@ struct io_buffer_list { __u8 is_mapped; /* ring mapped provided buffers, but mmap'ed by application */ __u8 is_mmap; + /* bl is visible from an RCU point of view for lookup */ + __u8 is_ready; }; struct io_buffer { @@ -51,6 +54,8 @@ int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags); int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg); int io_unregister_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg); +void io_kbuf_mmap_list_free(struct io_ring_ctx *ctx); + unsigned int __io_put_kbuf(struct io_kiocb *req, unsigned issue_flags); bool io_kbuf_recycle_legacy(struct io_kiocb *req, unsigned issue_flags); |