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| author | Wei Wang <weiwan@google.com> | 2021-08-17 12:40:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-18 11:39:44 +0100 |
| commit | 4b1327be9fe57443295ae86fe0fcf24a18469e9f (patch) | |
| tree | cab0b45edc0c01d5fbac35ba3c63bdcd17428d7d /net/ipv4 | |
| parent | ab44035d308227723b490487ff0feba521e87029 (diff) | |
| download | linux-4b1327be9fe57443295ae86fe0fcf24a18469e9f.tar.gz linux-4b1327be9fe57443295ae86fe0fcf24a18469e9f.tar.bz2 linux-4b1327be9fe57443295ae86fe0fcf24a18469e9f.zip | |
net-memcg: pass in gfp_t mask to mem_cgroup_charge_skmem()
Add gfp_t mask as an input parameter to mem_cgroup_charge_skmem(),
to give more control to the networking stack and enable it to change
memcg charging behavior. In the future, the networking stack may decide
to avoid oom-kills when fallbacks are more appropriate.
One behavior change in mem_cgroup_charge_skmem() by this patch is to
avoid force charging by default and let the caller decide when and if
force charging is needed through the presence or absence of
__GFP_NOFAIL.
Signed-off-by: Wei Wang <weiwan@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 3 | ||||
| -rw-r--r-- | net/ipv4/tcp_output.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 754013fa393b..f25d02ad4a8a 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -534,7 +534,8 @@ out: atomic_read(&newsk->sk_rmem_alloc)); mem_cgroup_sk_alloc(newsk); if (newsk->sk_memcg && amt) - mem_cgroup_charge_skmem(newsk->sk_memcg, amt); + mem_cgroup_charge_skmem(newsk->sk_memcg, amt, + GFP_KERNEL | __GFP_NOFAIL); release_sock(newsk); } diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 29553fce8502..6d72f3ea48c4 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3373,7 +3373,8 @@ void sk_forced_mem_schedule(struct sock *sk, int size) sk_memory_allocated_add(sk, amt); if (mem_cgroup_sockets_enabled && sk->sk_memcg) - mem_cgroup_charge_skmem(sk->sk_memcg, amt); + mem_cgroup_charge_skmem(sk->sk_memcg, amt, + gfp_memcg_charge() | __GFP_NOFAIL); } /* Send a FIN. The caller locks the socket for us. |