diff options
author | Marcelo Tosatti <marcelo.tosatti@cyclades.com> | 2006-02-03 06:04:06 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-03 11:32:04 -0500 |
commit | 47ba87e0b1269698801310bfd1716b0538282405 (patch) | |
tree | be429e822401e9f1a213b008b5e6e2f538754888 | |
parent | 09114eb8c53d2d3b2ff9523e011cb68b2e245dce (diff) |
[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>
-rw-r--r-- | fs/dcache.c | 2 | ||||
-rw-r--r-- | include/linux/dcache.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 86bdb93789c6..a173bba32666 100644 --- a/fs/dcache.c +++ b/fs/dcache.c | |||
@@ -743,7 +743,9 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name) | |||
743 | dentry->d_op = NULL; | 743 | dentry->d_op = NULL; |
744 | dentry->d_fsdata = NULL; | 744 | dentry->d_fsdata = NULL; |
745 | dentry->d_mounted = 0; | 745 | dentry->d_mounted = 0; |
746 | #ifdef CONFIG_PROFILING | ||
746 | dentry->d_cookie = NULL; | 747 | dentry->d_cookie = NULL; |
748 | #endif | ||
747 | INIT_HLIST_NODE(&dentry->d_hash); | 749 | INIT_HLIST_NODE(&dentry->d_hash); |
748 | INIT_LIST_HEAD(&dentry->d_lru); | 750 | INIT_LIST_HEAD(&dentry->d_lru); |
749 | INIT_LIST_HEAD(&dentry->d_subdirs); | 751 | INIT_LIST_HEAD(&dentry->d_subdirs); |
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index a3ed5e059d47..a3f09947940e 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h | |||
@@ -108,7 +108,9 @@ struct dentry { | |||
108 | struct dentry_operations *d_op; | 108 | struct dentry_operations *d_op; |
109 | struct super_block *d_sb; /* The root of the dentry tree */ | 109 | struct super_block *d_sb; /* The root of the dentry tree */ |
110 | void *d_fsdata; /* fs-specific data */ | 110 | void *d_fsdata; /* fs-specific data */ |
111 | #ifdef CONFIG_PROFILING | ||
111 | struct dcookie_struct *d_cookie; /* cookie, if any */ | 112 | struct dcookie_struct *d_cookie; /* cookie, if any */ |
113 | #endif | ||
112 | int d_mounted; | 114 | int d_mounted; |
113 | unsigned char d_iname[DNAME_INLINE_LEN_MIN]; /* small names */ | 115 | unsigned char d_iname[DNAME_INLINE_LEN_MIN]; /* small names */ |
114 | }; | 116 | }; |