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tcp: move tcp_out_of_memory() to net/ipv4/tcp.c

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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>
This commit is contained in:
Eric Dumazet 2024-04-29 13:40:23 +00:00 committed by Jakub Kicinski
parent d480dc76d9
commit dda4d96acb
2 changed files with 10 additions and 10 deletions
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10
include/net/tcp.h
View File

@ -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;

10
net/ipv4/tcp.c
View File

@ -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;