The patch titled
random: remove cacheline alignment for locks
has been removed from the -mm tree. Its filename was
random-remove-cacheline-alignment-for-locks.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: random: remove cacheline alignment for locks
From: Matt Mackall <mpm@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/random.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/char/random.c~random-remove-cacheline-alignment-for-locks drivers/char/random.c
--- a/drivers/char/random.c~random-remove-cacheline-alignment-for-locks
+++ a/drivers/char/random.c
@@ -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;
_
Patches currently in -mm which might be from mpm@xxxxxxxxxxx are
origin.patch
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