lkml.org 
[lkml]   [2011]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH] drm: reorder drm_open_hash to remove padding on 64 bit builds
From
Date
Remove 8 bytes of padding on 64 bit builds to reduce the size of
drm_open_hash to 24 bytes, which also shrinks drm_object_file by 24
bytes (136 -> 112) allowing it to fit in one fewer cache lines and a
smaller slab.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
---
patch against v2.6.38-rc6
compiled & tested on x86_64 with nouveau.

regards
Richard



diff --git a/include/drm/drm_hashtab.h b/include/drm/drm_hashtab.h
index 0af087a..ff2ab48 100644
--- a/include/drm/drm_hashtab.h
+++ b/include/drm/drm_hashtab.h
@@ -48,8 +48,8 @@ struct drm_open_hash {
unsigned int size;
unsigned int order;
unsigned int fill;
- struct hlist_head *table;
int use_vmalloc;
+ struct hlist_head *table;
};





\
 
 \ /
  Last update: 2011-03-01 15:11    [W:0.031 / U:7.784 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site