diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.com> | 2024-03-25 23:24:24 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-29 18:28:42 +0300 |
| commit | 4090fa373f0e763c43610853d2774b5979915959 (patch) | |
| tree | ea5671d049b281b3124624d47b25f9883c72a3e6 /net/unix/af_unix.c | |
| parent | a15702d8b3aad8ce5268c565bd29f0e02fd2db83 (diff) | |
| download | linux-4090fa373f0e763c43610853d2774b5979915959.tar.xz | |
af_unix: Replace garbage collection algorithm.
If we find a dead SCC during iteration, we call unix_collect_skb()
to splice all skb in the SCC to the global sk_buff_head, hitlist.
After iterating all SCC, we unlock unix_gc_lock and purge the queue.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240325202425.60930-15-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/unix/af_unix.c')
| -rw-r--r-- | net/unix/af_unix.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index ae77e2dc0dae..27ca50ab1cd1 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -980,12 +980,10 @@ static struct sock *unix_create1(struct net *net, struct socket *sock, int kern, sk->sk_destruct = unix_sock_destructor; u = unix_sk(sk); u->listener = NULL; - u->inflight = 0; u->vertex = NULL; u->path.dentry = NULL; u->path.mnt = NULL; spin_lock_init(&u->lock); - INIT_LIST_HEAD(&u->link); mutex_init(&u->iolock); /* single task reading lock */ mutex_init(&u->bindlock); /* single task binding lock */ init_waitqueue_head(&u->peer_wait); @@ -1793,8 +1791,6 @@ static inline bool too_many_unix_fds(struct task_struct *p) static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) { - int i; - if (too_many_unix_fds(current)) return -ETOOMANYREFS; @@ -1806,9 +1802,6 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) if (!UNIXCB(skb).fp) return -ENOMEM; - for (i = scm->fp->count - 1; i >= 0; i--) - unix_inflight(scm->fp->user, scm->fp->fp[i]); - if (unix_prepare_fpl(UNIXCB(skb).fp)) return -ENOMEM; @@ -1817,15 +1810,10 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb) { - int i; - scm->fp = UNIXCB(skb).fp; UNIXCB(skb).fp = NULL; unix_destroy_fpl(scm->fp); - - for (i = scm->fp->count - 1; i >= 0; i--) - unix_notinflight(scm->fp->user, scm->fp->fp[i]); } static void unix_peek_fds(struct scm_cookie *scm, struct sk_buff *skb) |