1 files changed, 55 insertions, 1 deletions

diff --git a/fs/xfs/xfs_icache.h b/fs/xfs/xfs_icache.h
index a01afbb3909a..9ed68bb750f5 100644
--- a/fs/xfs/xfs_icache.h
+++ b/fs/xfs/xfs_icache.h
@@ -21,17 +21,36 @@
 struct xfs_mount;
 struct xfs_perag;
 
+struct xfs_eofblocks {
+        __u32           eof_flags;
+        kuid_t          eof_uid;
+        kgid_t          eof_gid;
+        prid_t          eof_prid;
+        __u64           eof_min_file_size;
+};
+
 #define SYNC_WAIT               0x0001  /* wait for i/o to complete */
 #define SYNC_TRYLOCK            0x0002  /* only try to lock inodes */
 
+/*
+ * Flags for xfs_iget()
+ */
+#define XFS_IGET_CREATE         0x1
+#define XFS_IGET_UNTRUSTED      0x2
+#define XFS_IGET_DONTCACHE      0x4
+
 int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
              uint flags, uint lock_flags, xfs_inode_t **ipp);
 
+/* recovery needs direct inode allocation capability */
+struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
+void xfs_inode_free(struct xfs_inode *ip);
+
 void xfs_reclaim_worker(struct work_struct *work);
 
 int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
 int xfs_reclaim_inodes_count(struct xfs_mount *mp);
-void xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
+long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
 
 void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
 
@@ -49,4 +68,39 @@ int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
                 int flags, void *args),
         int flags, void *args, int tag);
 
+static inline int
+xfs_fs_eofblocks_from_user(
+        struct xfs_fs_eofblocks         *src,
+        struct xfs_eofblocks            *dst)
+{
+        if (src->eof_version != XFS_EOFBLOCKS_VERSION)
+                return EINVAL;
+
+        if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
+                return EINVAL;
+
+        if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
+            memchr_inv(src->pad64, 0, sizeof(src->pad64)))
+                return EINVAL;
+
+        dst->eof_flags = src->eof_flags;
+        dst->eof_prid = src->eof_prid;
+        dst->eof_min_file_size = src->eof_min_file_size;
+
+        dst->eof_uid = INVALID_UID;
+        if (src->eof_flags & XFS_EOF_FLAGS_UID) {
+                dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
+                if (!uid_valid(dst->eof_uid))
+                        return EINVAL;
+        }
+
+        dst->eof_gid = INVALID_GID;
+        if (src->eof_flags & XFS_EOF_FLAGS_GID) {
+                dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
+                if (!gid_valid(dst->eof_gid))
+                        return EINVAL;
+        }
+        return 0;
+}
+
 #endif