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| author |   Eric Dumazet <edumazet@google.com> | 2015-05-26 07:55:34 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-26 19:48:46 -0400 |
| commit | 095dc8e0c3686d586a01a50abc3e1bb9ac633054 (patch) | |
| tree | 5b6b15dcfcc64e553af3587a83d70b5f859f8a45 /net/ipv4/tcp_output.c | |
| parent | tipc: fix bug in link protocol message create function (diff) | |
| download | linux-dev-095dc8e0c3686d586a01a50abc3e1bb9ac633054.tar.xz linux-dev-095dc8e0c3686d586a01a50abc3e1bb9ac633054.zip | |
tcp: fix/cleanup inet_ehash_locks_alloc()
If tcp ehash table is constrained to a very small number of buckets
(eg boot parameter thash_entries=128), then we can crash if spinlock
array has more entries.
While we are at it, un-inline inet_ehash_locks_alloc() and make
following changes :
- Budget 2 cache lines per cpu worth of 'spinlocks'
- Try to kmalloc() the array to avoid extra TLB pressure.
(Most servers at Google allocate 8192 bytes for this hash table)
- Get rid of various #ifdef
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