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| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2022-01-21 11:09:44 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-01-21 14:14:01 -0800 |
| commit | d16697cb6261d4cc23422e6b1cb2759df8aa76d0 (patch) | |
| tree | 084d33ae01358ddab84056b40009f7523da72062 /include/linux/skbuff.h | |
| parent | 820e6e227c4053b6b631ae65ef1f65d560cb392b (diff) | |
| download | lwn-d16697cb6261d4cc23422e6b1cb2759df8aa76d0.tar.gz lwn-d16697cb6261d4cc23422e6b1cb2759df8aa76d0.zip | |
net: skbuff: add size metadata to skb_shared_info for xdp
Introduce xdp_frags_size field in skb_shared_info data structure
to store xdp_buff/xdp_frame frame paged size (xdp_frags_size will
be used in xdp frags support). In order to not increase
skb_shared_info size we will use a hole due to skb_shared_info
alignment.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/8a849819a3e0a143d540f78a3a5add76e17e980d.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index bf11e1fbd69b..8131d0de7559 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -557,6 +557,7 @@ struct skb_shared_info { * Warning : all fields before dataref are cleared in __alloc_skb() */ atomic_t dataref; + unsigned int xdp_frags_size; /* Intermediate layers must ensure that destructor_arg * remains valid until skb destructor */ |