diff options
| author |   David Howells <dhowells@redhat.com> | 2023-05-22 13:11:12 +0100 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2023-05-23 20:48:27 -0700 |
| commit | 2e910b95329c2dc7feffbec00907f9e02d1a850a (patch) | |
| tree | af42d5f2e155380b765ced7b747eff2979aa78e4 /include/linux/skbuff.h | |
| parent | net: Pass max frags into skb_append_pagefrags() (diff) | |
| download | wireguard-linux-2e910b95329c2dc7feffbec00907f9e02d1a850a.tar.xz wireguard-linux-2e910b95329c2dc7feffbec00907f9e02d1a850a.zip | |
net: Add a function to splice pages into an skbuff for MSG_SPLICE_PAGES
Add a function to handle MSG_SPLICE_PAGES being passed internally to
sendmsg(). Pages are spliced into the given socket buffer if possible and
copied in if not (e.g. they're slab pages or have a zero refcount).
Signed-off-by: David Howells <dhowells@redhat.com>
cc: David Ahern <dsahern@kernel.org>
cc: Al Viro <viro@zeniv.linux.org.uk>
cc: Jens Axboe <axboe@kernel.dk>
cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 15011408c47c..1b2ebf6113e0 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -5097,5 +5097,8 @@ static inline void skb_mark_for_recycle(struct sk_buff *skb) #endif } +ssize_t skb_splice_from_iter(struct sk_buff *skb, struct iov_iter *iter, + ssize_t maxsize, gfp_t gfp); + #endif /* __KERNEL__ */ #endif /* _LINUX_SKBUFF_H */ |