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| author | Marcelo Tosatti <marcelo.tosatti@cyclades.com> | 2006-02-03 03:04:06 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-03 08:32:04 -0800 |
| commit | 47ba87e0b1269698801310bfd1716b0538282405 (patch) | |
| tree | be429e822401e9f1a213b008b5e6e2f538754888 | |
| parent | 09114eb8c53d2d3b2ff9523e011cb68b2e245dce (diff) | |
| download | linux-3.10-47ba87e0b1269698801310bfd1716b0538282405.tar.gz linux-3.10-47ba87e0b1269698801310bfd1716b0538282405.tar.bz2 linux-3.10-47ba87e0b1269698801310bfd1716b0538282405.zip | |
[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 86bdb93789c..a173bba3266 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -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); diff --git a/include/linux/dcache.h b/include/linux/dcache.h index a3ed5e059d4..a3f09947940 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -108,7 +108,9 @@ struct dentry { struct dentry_operations *d_op; struct super_block *d_sb; /* The root of the dentry tree */ void *d_fsdata; /* fs-specific data */ +#ifdef CONFIG_PROFILING struct dcookie_struct *d_cookie; /* cookie, if any */ +#endif int d_mounted; unsigned char d_iname[DNAME_INLINE_LEN_MIN]; /* small names */ }; |