diff options
| author |   Eric Dumazet <edumazet@google.com> | 2015-05-15 12:39:25 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-17 22:45:48 -0400 |
| commit | 1a24e04e4b50939daa3041682b38b82c896ca438 (patch) | |
| tree | dc47be63f82d9c6be6d193607688d10b3f78a366 /include/net/sock.h | |
| parent | net-packet: fix null pointer exception in rollover mode (diff) | |
| download | linux-dev-1a24e04e4b50939daa3041682b38b82c896ca438.tar.xz linux-dev-1a24e04e4b50939daa3041682b38b82c896ca438.zip | |
net: fix sk_mem_reclaim_partial()
sk_mem_reclaim_partial() goal is to ensure each socket has
one SK_MEM_QUANTUM forward allocation. This is needed both for
performance and better handling of memory pressure situations in
follow up patches.
SK_MEM_QUANTUM is currently a page, but might be reduced to 4096 bytes
as some arches have 64KB pages.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index d882f4c8e438..4581a60636f8 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1368,7 +1368,7 @@ static inline struct inode *SOCK_INODE(struct socket *socket) * Functions for memory accounting */ int __sk_mem_schedule(struct sock *sk, int size, int kind); -void __sk_mem_reclaim(struct sock *sk); +void __sk_mem_reclaim(struct sock *sk, int amount); #define SK_MEM_QUANTUM ((int)PAGE_SIZE) #define SK_MEM_QUANTUM_SHIFT ilog2(SK_MEM_QUANTUM) @@ -1409,7 +1409,7 @@ static inline void sk_mem_reclaim(struct sock *sk) if (!sk_has_account(sk)) return; if (sk->sk_forward_alloc >= SK_MEM_QUANTUM) - __sk_mem_reclaim(sk); + __sk_mem_reclaim(sk, sk->sk_forward_alloc); } static inline void sk_mem_reclaim_partial(struct sock *sk) @@ -1417,7 +1417,7 @@ static inline void sk_mem_reclaim_partial(struct sock *sk) if (!sk_has_account(sk)) return; if (sk->sk_forward_alloc > SK_MEM_QUANTUM) - __sk_mem_reclaim(sk); + __sk_mem_reclaim(sk, sk->sk_forward_alloc - 1); } static inline void sk_mem_charge(struct sock *sk, int size) |