luck/tmp_suning_uos_patched
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random: remove cacheline alignment for locks

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Earlier changes greatly reduce the number of times we grab the lock
per output byte, so we shouldn't need this particular hack any more.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matt Mackall 2008-04-29 01:03:01 -07:00 committed by Linus Torvalds
parent 1c0ad3d492
commit 433582093a
1 changed files with 2 additions and 2 deletions
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4
drivers/char/random.c
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@ -395,7 +395,7 @@ module_param(debug, bool, 0644);
struct entropy_store;
struct entropy_store {
/* mostly-read data: */
/* read-only data: */
struct poolinfo *poolinfo;
__u32 *pool;
const char *name;
@ -403,7 +403,7 @@ struct entropy_store {
struct entropy_store *pull;
/* read-write data: */
spinlock_t lock ____cacheline_aligned_in_smp;
spinlock_t lock;
unsigned add_ptr;
int entropy_count;
int input_rotate;