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[PATCH] make "struct d_cookie" depend on CONFIG_PROFILING

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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>
This commit is contained in:
Marcelo Tosatti
2006-02-03 03:04:06 -08:00
committed by Linus Torvalds
parent 09114eb8c5
commit 47ba87e0b1
2 changed files with 4 additions and 0 deletions
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2
fs/dcache.c
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@@ -743,7 +743,9 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name)
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);