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authorEric Dumazet <edumazet@google.com>2023-03-07 17:59:59 +0300
committerDavid S. Miller <davem@davemloft.net>2023-03-08 16:21:47 +0300
commit10369080454d87ee5b2db211ce947cb3118f0e13 (patch)
tree0fc9e0f971170f352455c006a6e0fbbe3d22db18 /io_uring
parentb3f4cd07dfb467a2ecaf7f5350333a45a23de551 (diff)
downloadlinux-10369080454d87ee5b2db211ce947cb3118f0e13.tar.xz
net: reclaim skb->scm_io_uring bit
Commit 0091bfc81741 ("io_uring/af_unix: defer registered files gc to io_uring release") added one bit to struct sk_buff. This structure is critical for networking, and we try very hard to not add bloat on it, unless absolutely required. For instance, we can use a specific destructor as a wrapper around unix_destruct_scm(), to identify skbs that unix_gc() has to special case. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Pavel Begunkov <asml.silence@gmail.com> Cc: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Cc: Jens Axboe <axboe@kernel.dk> Reviewed-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/rsrc.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index a59fc02de598..27ceda3b50cf 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -867,8 +867,7 @@ int __io_scm_file_account(struct io_ring_ctx *ctx, struct file *file)
UNIXCB(skb).fp = fpl;
skb->sk = sk;
- skb->scm_io_uring = 1;
- skb->destructor = unix_destruct_scm;
+ skb->destructor = io_uring_destruct_scm;
refcount_add(skb->truesize, &sk->sk_wmem_alloc);
}