diff options
Diffstat (limited to 'include/linux/dcache.h')
| -rw-r--r-- | include/linux/dcache.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 7e11f1418203..094789ff3e9f 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -25,6 +25,13 @@ struct vfsmount; #define IS_ROOT(x) ((x) == (x)->d_parent) +/* The hash is always the low bits of hash_len */ +#ifdef __LITTLE_ENDIAN + #define HASH_LEN_DECLARE u32 hash; u32 len; +#else + #define HASH_LEN_DECLARE u32 len; u32 hash; +#endif + /* * "quick string" -- eases parameter passing, but more importantly * saves "metadata" about the string (ie length and the hash). @@ -33,11 +40,19 @@ struct vfsmount; * dentry. */ struct qstr { - unsigned int hash; - unsigned int len; + union { + struct { + HASH_LEN_DECLARE; + }; + u64 hash_len; + }; const unsigned char *name; }; +#define QSTR_INIT(n,l) { { { .len = l } }, .name = n } +#define hashlen_hash(hashlen) ((u32) (hashlen)) +#define hashlen_len(hashlen) ((u32)((hashlen) >> 32)) + struct dentry_stat_t { int nr_dentry; int nr_unused; @@ -282,7 +297,7 @@ extern struct dentry *d_hash_and_lookup(struct dentry *, struct qstr *); extern struct dentry *__d_lookup(struct dentry *, struct qstr *); extern struct dentry *__d_lookup_rcu(const struct dentry *parent, const struct qstr *name, - unsigned *seq, struct inode **inode); + unsigned *seq, struct inode *inode); /** * __d_rcu_to_refcount - take a refcount on dentry if sequence check is ok |