diff options
| author | Amit Pundir <amit.pundir@linaro.org> | 2016-11-15 18:16:35 +0530 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2016-11-15 18:33:34 +0530 |
| commit | 91e63c11a5eb143f5d737cf0380088528e7fa327 (patch) | |
| tree | 34f5b35edf45c51b9a4d3aa5b04313d97be97754 /include/net/sock.h | |
| parent | 79df8fa79b6a2aced892ad2b2c9832e7d9bdea6b (diff) | |
| parent | 29703588215bbf281aed9aa8cdec0641757fb9e1 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts:
* arch/arm64/include/asm/assembler.h
Pick changes from AOSP Change-Id: I450594dc311b09b6b832b707a9abb357608cc6e4
("UPSTREAM: arm64: include alternative handling in dcache_by_line_op").
* drivers/android/binder.c
Pick changes from LTS commit 14f09e8e7cd8 ("ANDROID: binder: Add strong ref checks"),
instead of AOSP Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca
("ANDROID: binder: Add strong ref checks").
* drivers/usb/gadget/function/u_ether.c
Refactor throttling of highspeed IRQ logic in AOSP by adding
a check for last queue request as intended by LTS commit
660c04e8f174 ("usb: gadget: function: u_ether: don't starve tx request queue").
Fixes AOSP Change-Id: I26515bfd9bbc8f7af38be7835692143f7093118a
("USB: gadget: u_ether: Fix data stall issue in RNDIS tethering mode").
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 2d663ee8494d..8f77df63a8f4 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1426,6 +1426,16 @@ static inline void sk_mem_uncharge(struct sock *sk, int size) if (!sk_has_account(sk)) return; sk->sk_forward_alloc += size; + + /* Avoid a possible overflow. + * TCP send queues can make this happen, if sk_mem_reclaim() + * is not called and more than 2 GBytes are released at once. + * + * If we reach 2 MBytes, reclaim 1 MBytes right now, there is + * no need to hold that much forward allocation anyway. + */ + if (unlikely(sk->sk_forward_alloc >= 1 << 21)) + __sk_mem_reclaim(sk, 1 << 20); } static inline void sk_wmem_free_skb(struct sock *sk, struct sk_buff *skb) |