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vfs: uninline full_name_hash()

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.. and also use it in lookup_one_len() rather than open-coding it.

There aren't any performance-critical users, so inlining it is silly.
But it wouldn't matter if it wasn't for the fact that the word-at-a-time
dentry name patches want to conditionally replace the function, and
uninlining it sets the stage for that.

So again, this is a preparatory patch that doesn't change any semantics,
and only prepares for a much cleaner and testable word-at-a-time dentry
name accessor patch.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2012-03-02 14:32:59 -08:00
parent 8966be9030
commit 0145acc202
2 changed files with 10 additions and 12 deletions
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9
include/linux/dcache.h
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@ -89,14 +89,7 @@ static inline unsigned long end_name_hash(unsigned long hash)
}
/* Compute the hash for a name string. */
static inline unsigned int
full_name_hash(const unsigned char *name, unsigned int len)
{
unsigned long hash = init_name_hash();
while (len--)
hash = partial_name_hash(*name++, hash);
return end_name_hash(hash);
}
extern unsigned int full_name_hash(const unsigned char *, unsigned int);
/*
* Try to keep struct dentry aligned on 64 byte cachelines (this will