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| author | Dave Airlie <airlied@redhat.com> | 2016-09-28 12:08:49 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-09-28 12:08:49 +1000 |
| commit | ca09fb9f60b5f3ab2d57e761aaeea89a5147d784 (patch) | |
| tree | 908e42ecf32d2601f4c5c340c6c4626841baa661 /include/net/sock.h | |
| parent | 9f4ef05bcdcfdf911b056b471dd3c6a4f331b644 (diff) | |
| parent | 08895a8b6b06ed2323cd97a36ee40a116b3db8ed (diff) | |
| download | linux-stable-ca09fb9f60b5f3ab2d57e761aaeea89a5147d784.tar.gz linux-stable-ca09fb9f60b5f3ab2d57e761aaeea89a5147d784.tar.bz2 linux-stable-ca09fb9f60b5f3ab2d57e761aaeea89a5147d784.zip | |
Merge tag 'v4.8-rc8' into drm-next
Linux 4.8-rc8
There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge
it now to avoid troubles.
* tag 'v4.8-rc8': (1442 commits)
Linux 4.8-rc8
fault_in_multipages_readable() throws set-but-unused error
mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing
radix tree: fix sibling entry handling in radix_tree_descend()
radix tree test suite: Test radix_tree_replace_slot() for multiorder entries
fix memory leaks in tracing_buffers_splice_read()
tracing: Move mutex to protect against resetting of seq data
MIPS: Fix delay slot emulation count in debugfs
MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
mm: delete unnecessary and unsafe init_tlb_ubc()
huge tmpfs: fix Committed_AS leak
shmem: fix tmpfs to handle the huge= option properly
blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx
MIPS: Fix pre-r6 emulation FPU initialisation
arm64: kgdb: handle read-only text / modules
arm64: Call numa_store_cpu_info() earlier.
locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text
nvme-rdma: only clear queue flags after successful connect
i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
perf/core: Limit matching exclusive events to one PMU
...
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 ff5be7e8ddea..8741988e6880 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1332,6 +1332,16 @@ 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) |