commit 47ba87e0b1269698801310bfd1716b0538282405
author Marcelo Tosatti <marcelo.tosatti@cyclades.com> Fri Feb 03 03:04:06 2006 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Fri Feb 03 08:32:04 2006 -0800
tree be429e822401e9f1a213b008b5e6e2f538754888
parent 09114eb8c53d2d3b2ff9523e011cb68b2e245dce

[PATCH] make "struct d_cookie" depend on CONFIG_PROFILING

Shrinks "struct dentry" from 128 bytes to 124 on x86, allowing 31 objects
per slab instead of 30.

Cc: John Levon <levon@movementarian.org>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 86bdb93..a173bba 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -743,7 +743,9 @@
 	dentry->d_op = NULL;
 	dentry->d_fsdata = NULL;
 	dentry->d_mounted = 0;
+#ifdef CONFIG_PROFILING
 	dentry->d_cookie = NULL;
+#endif
 	INIT_HLIST_NODE(&dentry->d_hash);
 	INIT_LIST_HEAD(&dentry->d_lru);
 	INIT_LIST_HEAD(&dentry->d_subdirs);