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author | Eric Dumazet | 2015-10-03 15:27:28 +0200 |
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committer | David S. Miller | 2015-10-03 22:25:20 +0200 |
commit | e96f78ab2703f3b0d512f6b469bc685d2ef20475 (patch) | |
tree | c3401c3053c26288e2bfef14544d326e9db3dc0d /net/netfilter/nfnetlink_queue_core.c | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsh... (diff) | |
download | kernel-qcow2-linux-e96f78ab2703f3b0d512f6b469bc685d2ef20475.tar.gz kernel-qcow2-linux-e96f78ab2703f3b0d512f6b469bc685d2ef20475.tar.xz kernel-qcow2-linux-e96f78ab2703f3b0d512f6b469bc685d2ef20475.zip |
tcp/dccp: add SLAB_DESTROY_BY_RCU flag for request sockets
Before letting request sockets being put in TCP/DCCP regular
ehash table, we need to add either :
- SLAB_DESTROY_BY_RCU flag to their kmem_cache
- add RCU grace period before freeing them.
Since we carefully respected the SLAB_DESTROY_BY_RCU protocol
like ESTABLISH and TIMEWAIT sockets, use it here.
req_prot_init() being only used by TCP and DCCP, I did not add
a new slab_flags into their rsk_prot, but reuse prot->slab_flags
Since all reqsk_alloc() users are correctly dealing with a failure,
add the __GFP_NOWARN flag to avoid traces under pressure.
Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter/nfnetlink_queue_core.c')
0 files changed, 0 insertions, 0 deletions