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| author |   Eric Dumazet <edumazet@google.com> | 2015-10-03 06:27:28 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-10-03 13:25:20 -0700 |
| commit | e96f78ab2703f3b0d512f6b469bc685d2ef20475 (patch) | |
| tree | c3401c3053c26288e2bfef14544d326e9db3dc0d /drivers/net/ethernet/intel/i40e/i40e_txrx.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue (diff) | |
| download | linux-dev-e96f78ab2703f3b0d512f6b469bc685d2ef20475.tar.xz linux-dev-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 '')
0 files changed, 0 insertions, 0 deletions