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[INET]: Shrink struct inet_ehash_bucket on 32 bits UP 

No need to align struct inet_ehash_bucket on a 8 bytes boundary.

On 32 bits Uniprocessor, that's a waste of 4 bytes per struct (50 %)

On other platforms, the attribute is useless, natual alignement is already 8.

platform     | Size before | Size after patch
-------------+-------------+------------------
32 bits, UP  |         8   |     4
32 bits, SMP |         8   |     8
64 bits, UP  |         8   |     8
64 bits, SMP |        16   |    16

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2005-10-04 15:55:51 -07:00 committed by David S. Miller
parent f6e63cfb5c
commit 6d2553612f
1 changed files with 1 additions and 1 deletions
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2
include/net/inet_hashtables.h
View File

@ -40,7 +40,7 @@
struct inet_ehash_bucket { struct inet_ehash_bucket {
rwlock_t lock; rwlock_t lock;
struct hlist_head chain; struct hlist_head chain;
} __attribute__((__aligned__(8))); };
/* There are a few simple rules, which allow for local port reuse by /* There are a few simple rules, which allow for local port reuse by
* an application. In essence: * an application. In essence: