diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/xattr.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/include/linux/xattr.h b/include/linux/xattr.h index fdbd2095414a..832a44358661 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -107,8 +107,14 @@ static inline const char *xattr_prefix(const struct xattr_handler *handler) } struct simple_xattrs { - struct rb_root rb_root; - rwlock_t lock; + bool use_rhashtable; + union { + struct { + struct rb_root rb_root; + rwlock_t lock; + }; + struct rhashtable ht; + }; }; struct simple_xattr { @@ -121,6 +127,9 @@ struct simple_xattr { }; void simple_xattrs_init(struct simple_xattrs *xattrs); +struct simple_xattrs *simple_xattrs_alloc(void); +struct simple_xattrs *simple_xattrs_lazy_alloc(struct simple_xattrs **xattrsp, + const void *value, int flags); void simple_xattrs_free(struct simple_xattrs *xattrs, size_t *freed_space); size_t simple_xattr_space(const char *name, size_t size); struct simple_xattr *simple_xattr_alloc(const void *value, size_t size); @@ -137,4 +146,16 @@ void simple_xattr_add(struct simple_xattrs *xattrs, struct simple_xattr *new_xattr); int xattr_list_one(char **buffer, ssize_t *remaining_size, const char *name); +DEFINE_CLASS(simple_xattr, + struct simple_xattr *, + if (!IS_ERR_OR_NULL(_T)) simple_xattr_free(_T), + simple_xattr_alloc(value, size), + const void *value, size_t size) + +DEFINE_CLASS(simple_xattrs, + struct simple_xattrs *, + if (!IS_ERR_OR_NULL(_T)) { simple_xattrs_free(_T, NULL); kfree(_T); }, + simple_xattrs_alloc(), + void) + #endif /* _LINUX_XATTR_H */ |