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| author |  Pavel Begunkov <asml.silence@gmail.com>
| 2022-07-12 21:52:28 +0100 |
|---|---|---|
| committer |  Jakub Kicinski <kuba@kernel.org>
| 2022-07-18 19:58:45 -0700 |
| commit | 2e07a521e1e424787af3bfc59615de4220856c35 (patch) | |
| tree | 5444a5c42b38fff579bc9ef95a8bb9b244fe77da /include/linux/skbuff.h | |
| parent | skbuff: don't mix ubuf_info from different sources (diff) | |
| download | linux-2e07a521e1e424787af3bfc59615de4220856c35.tar.gz linux-2e07a521e1e424787af3bfc59615de4220856c35.tar.bz2 linux-2e07a521e1e424787af3bfc59615de4220856c35.zip | |
skbuff: add SKBFL_DONT_ORPHAN flag
We don't want to list every single ubuf_info callback in
skb_orphan_frags(), add a flag controlling the behaviour.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index d3d10556f0fa..8e12b3b9ad6c 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -686,10 +686,13 @@ enum { * charged to the kernel memory. */ SKBFL_PURE_ZEROCOPY = BIT(2), + + SKBFL_DONT_ORPHAN = BIT(3), }; #define SKBFL_ZEROCOPY_FRAG (SKBFL_ZEROCOPY_ENABLE | SKBFL_SHARED_FRAG) -#define SKBFL_ALL_ZEROCOPY (SKBFL_ZEROCOPY_FRAG | SKBFL_PURE_ZEROCOPY) +#define SKBFL_ALL_ZEROCOPY (SKBFL_ZEROCOPY_FRAG | SKBFL_PURE_ZEROCOPY | \ + SKBFL_DONT_ORPHAN) /* * The callback notifies userspace to release buffers when skb DMA is done in @@ -3182,8 +3185,7 @@ static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask) { if (likely(!skb_zcopy(skb))) return 0; - if (!skb_zcopy_is_nouarg(skb) && - skb_uarg(skb)->callback == msg_zerocopy_callback) + if (skb_shinfo(skb)->flags & SKBFL_DONT_ORPHAN) return 0; return skb_copy_ubufs(skb, gfp_mask); } |