[ 154/180] random: Reorder struct entropy_store to remove padding on 64bits

From: Willy Tarreau
Date: Mon Oct 01 2012 - 20:10:15 EST


2.6.32-longterm review patch. If anyone has any objections, please let me know.

------------------

From: Richard Kennedy <richard@xxxxxxxxxxxxxxx>

commit 4015d9a865e3bcc42d88bedc8ce1551000bab664 upstream.

Re-order structure entropy_store to remove 8 bytes of padding on
64 bit builds, so shrinking this structure from 72 to 64 bytes
and allowing it to fit into one cache line.

Signed-off-by: Richard Kennedy <richard@xxxxxxxxxxxxxxx>
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
drivers/char/random.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 3a19e2d..a6e258b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -406,8 +406,8 @@ struct entropy_store {
struct poolinfo *poolinfo;
__u32 *pool;
const char *name;
- int limit;
struct entropy_store *pull;
+ int limit;

/* read-write data: */
spinlock_t lock;
--
1.7.2.1.45.g54fbc



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