Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / reiserfs / acl.h

diff --git a/kernel/fs/reiserfs/acl.h b/kernel/fs/reiserfs/acl.h
new file mode 100644 (file)
index 0000000..4a211f5
--- /dev/null
+++ b/kernel/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_set_acl(struct inode *inode, struct posix_acl *acl, 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);
+
+#else
+
+#define reiserfs_cache_default_acl(inode) 0
+#define reiserfs_get_acl NULL
+#define reiserfs_set_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