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Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c
index a780ea515c47..ec72fa1acb14 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1374,6 +1374,14 @@ static inline int can_lookup(struct inode *inode)
return 1;
}
+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);
+}
+
/*
* Name resolution.
* This is the basic name resolution function, turning a pathname into
@@ -1775,24 +1783,21 @@ static struct dentry *lookup_hash(struct nameidata *nd)
struct dentry *lookup_one_len(const char *name, struct dentry *base, int len)
{
struct qstr this;
- unsigned long hash;
unsigned int c;
WARN_ON_ONCE(!mutex_is_locked(&base->d_inode->i_mutex));
this.name = name;
this.len = len;
+ this.hash = full_name_hash(name, len);
if (!len)
return ERR_PTR(-EACCES);
- hash = init_name_hash();
while (len--) {
c = *(const unsigned char *)name++;
if (c == '/' || c == '\0')
return ERR_PTR(-EACCES);
- hash = partial_name_hash(c, hash);
}
- this.hash = end_name_hash(hash);
/*
* See if the low-level filesystem might want
* to use its own hash..