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authorEric Dumazet <edumazet@google.com>2024-04-29 15:40:23 +0200
committerJakub Kicinski <kuba@kernel.org>2024-05-01 03:46:52 +0200
commitdda4d96acb20c02920f6d9a20fdc3f4846192aeb (patch)
tree3a6f55ab6c96593a9a625a9d466c88f592123bba
parentnet: move sysctl_skb_defer_max to net_hotdata (diff)
downloadlinux-dda4d96acb20c02920f6d9a20fdc3f4846192aeb.tar.xz
linux-dda4d96acb20c02920f6d9a20fdc3f4846192aeb.zip
tcp: move tcp_out_of_memory() to net/ipv4/tcp.c
tcp_out_of_memory() has a single caller: tcp_check_oom(). Following patch will also make sk_memory_allocated() not anymore visible from <net/sock.h> and <net/tcp.h> Add const qualifier to sock argument of tcp_out_of_memory() and tcp_check_oom(). Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240429134025.1233626-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--include/net/tcp.h10
-rw-r--r--net/ipv4/tcp.c10
2 files changed, 10 insertions, 10 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index fe98fb01879b..0a51e6a45bce 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -296,14 +296,6 @@ static inline bool between(__u32 seq1, __u32 seq2, __u32 seq3)
return seq3 - seq2 >= seq1 - seq2;
}
-static inline bool tcp_out_of_memory(struct sock *sk)
-{
- if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF &&
- sk_memory_allocated(sk) > sk_prot_mem_limits(sk, 2))
- return true;
- return false;
-}
-
static inline void tcp_wmem_free_skb(struct sock *sk, struct sk_buff *skb)
{
sk_wmem_queued_add(sk, -skb->truesize);
@@ -316,7 +308,7 @@ static inline void tcp_wmem_free_skb(struct sock *sk, struct sk_buff *skb)
void sk_forced_mem_schedule(struct sock *sk, int size);
-bool tcp_check_oom(struct sock *sk, int shift);
+bool tcp_check_oom(const struct sock *sk, int shift);
extern struct proto tcp_prot;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 388f6e115bf1..0a3aa3047083 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2752,7 +2752,15 @@ static bool tcp_too_many_orphans(int shift)
READ_ONCE(sysctl_tcp_max_orphans);
}
-bool tcp_check_oom(struct sock *sk, int shift)
+static bool tcp_out_of_memory(const struct sock *sk)
+{
+ if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF &&
+ sk_memory_allocated(sk) > sk_prot_mem_limits(sk, 2))
+ return true;
+ return false;
+}
+
+bool tcp_check_oom(const struct sock *sk, int shift)
{
bool too_many_orphans, out_of_socket_memory;