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author | Al Viro <viro@zeniv.linux.org.uk> | 2012-03-17 01:03:10 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-03-20 21:29:42 -0400 |
commit | a3063ab88fcbe5249f841cb95dfd626b8bf2674f (patch) | |
tree | bb3304f3317a4075cee2926b39867336cae708b0 /fs/reiserfs/acl.h | |
parent | c45ac8887e778c4fa2b572c51a94a681a0955d4d (diff) | |
download | linux-stable-a3063ab88fcbe5249f841cb95dfd626b8bf2674f.tar.gz linux-stable-a3063ab88fcbe5249f841cb95dfd626b8bf2674f.tar.bz2 linux-stable-a3063ab88fcbe5249f841cb95dfd626b8bf2674f.zip |
move reiserfs_acl.h to fs/reiserfs/acl.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/reiserfs/acl.h')
-rw-r--r-- | fs/reiserfs/acl.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h new file mode 100644 index 000000000000..f096b80e73d8 --- /dev/null +++ b/fs/reiserfs/acl.h @@ -0,0 +1,76 @@ +#include <linux/init.h> +#include <linux/posix_acl.h> + +#define REISERFS_ACL_VERSION 0x0001 + +typedef struct { + __le16 e_tag; + __le16 e_perm; + __le32 e_id; +} reiserfs_acl_entry; + +typedef struct { + __le16 e_tag; + __le16 e_perm; +} reiserfs_acl_entry_short; + +typedef struct { + __le32 a_version; +} reiserfs_acl_header; + +static inline size_t reiserfs_acl_size(int count) +{ + if (count <= 4) { + return sizeof(reiserfs_acl_header) + + count * sizeof(reiserfs_acl_entry_short); + } else { + return sizeof(reiserfs_acl_header) + + 4 * sizeof(reiserfs_acl_entry_short) + + (count - 4) * sizeof(reiserfs_acl_entry); + } +} + +static inline int reiserfs_acl_count(size_t size) +{ + ssize_t s; + size -= sizeof(reiserfs_acl_header); + s = size - 4 * sizeof(reiserfs_acl_entry_short); + if (s < 0) { + if (size % sizeof(reiserfs_acl_entry_short)) + return -1; + return size / sizeof(reiserfs_acl_entry_short); + } else { + if (s % sizeof(reiserfs_acl_entry)) + return -1; + return s / sizeof(reiserfs_acl_entry) + 4; + } +} + +#ifdef CONFIG_REISERFS_FS_POSIX_ACL +struct posix_acl *reiserfs_get_acl(struct inode *inode, int type); +int reiserfs_acl_chmod(struct inode *inode); +int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th, + struct inode *dir, struct dentry *dentry, + struct inode *inode); +int reiserfs_cache_default_acl(struct inode *dir); +extern const struct xattr_handler reiserfs_posix_acl_default_handler; +extern const struct xattr_handler reiserfs_posix_acl_access_handler; + +#else + +#define reiserfs_cache_default_acl(inode) 0 +#define reiserfs_get_acl NULL + +static inline int reiserfs_acl_chmod(struct inode *inode) +{ + return 0; +} + +static inline int +reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th, + const struct inode *dir, struct dentry *dentry, + struct inode *inode) +{ + return 0; +} +#endif |