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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 <[email protected]>
Cc: Philippe Elie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Marcelo Tosatti 2006-02-03 03:04:06 -08:00 • committed by Linus Torvalds
commit 47ba87e0b1
2 changed files with 4 additions and 0 deletions
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include/linux/dcache.h
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@ -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 */
};