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| author | Sage Weil <sage@inktank.com> | 2012-06-15 12:32:04 -0700 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2012-06-15 12:32:04 -0700 |
| commit | 9a64e8e0ace51b309fdcff4b4754b3649250382a (patch) | |
| tree | 1f0d75c196c5ab0408c55ed6cf3a152f1f921e15 /include/linux/dcache.h | |
| parent | f3dea7edd3d449fe7a6d402c1ce56a294b985261 (diff) | |
| parent | f8f5701bdaf9134b1f90e5044a82c66324d2073f (diff) | |
Merge tag 'v3.5-rc1'
Linux 3.5-rc1
Conflicts:
net/ceph/messenger.c
Diffstat (limited to 'include/linux/dcache.h')
| -rw-r--r-- | include/linux/dcache.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index ff5f5256d175..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; @@ -222,7 +237,6 @@ extern void shrink_dcache_for_umount(struct super_block *); extern int d_invalidate(struct dentry *); /* only used at mount-time */ -extern struct dentry * d_alloc_root(struct inode *); extern struct dentry * d_make_root(struct inode *); /* <clickety>-<click> the ramfs-type tree */ @@ -283,7 +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 |