diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-31 14:18:33 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-31 14:18:33 +0100 |
| commit | df5bf3b942a8d344bd9cbbe6ac31c9a2ea1557a4 (patch) | |
| tree | bfbcbe56b9f4f8b1e44242b80800a68b2ae5b2d6 /io_uring/net.c | |
| parent | 532a38292c7213aa6d950e6a1b86659d08b5aa67 (diff) | |
| parent | aebd8f0c6f8280ba35bc989f4a9ea47469d3589a (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.2-rc6.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'io_uring/net.c')
| -rw-r--r-- | io_uring/net.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index fbc34a7c2743..90326b279965 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -62,6 +62,7 @@ struct io_sr_msg { u16 flags; /* initialised and used only by !msg send variants */ u16 addr_len; + u16 buf_group; void __user *addr; /* used only for send zerocopy */ struct io_kiocb *notif; @@ -580,6 +581,15 @@ int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) if (req->opcode == IORING_OP_RECV && sr->len) return -EINVAL; req->flags |= REQ_F_APOLL_MULTISHOT; + /* + * Store the buffer group for this multishot receive separately, + * as if we end up doing an io-wq based issue that selects a + * buffer, it has to be committed immediately and that will + * clear ->buf_list. This means we lose the link to the buffer + * list, and the eventual buffer put on completion then cannot + * restore it. + */ + sr->buf_group = req->buf_index; } #ifdef CONFIG_COMPAT @@ -596,6 +606,7 @@ static inline void io_recv_prep_retry(struct io_kiocb *req) sr->done_io = 0; sr->len = 0; /* get from the provided buffer */ + req->buf_index = sr->buf_group; } /* |