- Update to 2.6.25-rc3.

[linux-flexiantxendom0-3.2.10.git] / fs / ocfs2 / ocfs2_fs.h

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 6ef8767..3633edd 100644 (file)
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -231,6 +231,20 @@ struct ocfs2_space_resv {
 #define OCFS2_IOC_RESVSP64     _IOW ('X', 42, struct ocfs2_space_resv)
 #define OCFS2_IOC_UNRESVSP64   _IOW ('X', 43, struct ocfs2_space_resv)
 
+/* Used to pass group descriptor data when online resize is done */
+struct ocfs2_new_group_input {
+       __u64 group;            /* Group descriptor's blkno. */
+       __u32 clusters;         /* Total number of clusters in this group */
+       __u32 frees;            /* Total free clusters in this group */
+       __u16 chain;            /* Chain for this group */
+       __u16 reserved1;
+       __u32 reserved2;
+};
+
+#define OCFS2_IOC_GROUP_EXTEND _IOW('o', 1, int)
+#define OCFS2_IOC_GROUP_ADD    _IOW('o', 2,struct ocfs2_new_group_input)
+#define OCFS2_IOC_GROUP_ADD64  _IOW('o', 3,struct ocfs2_new_group_input)
+
 /*
  * Journal Flags (ocfs2_dinode.id1.journal1.i_flags)
  */
@@ -256,6 +270,14 @@ struct ocfs2_space_resv {
 /* Journal limits (in bytes) */
 #define OCFS2_MIN_JOURNAL_SIZE         (4 * 1024 * 1024)
 
+/*
+ * Default local alloc size (in megabytes)
+ *
+ * The value chosen should be such that most allocations, including new
+ * block groups, use local alloc.
+ */
+#define OCFS2_DEFAULT_LOCAL_ALLOC_SIZE 8
+
 struct ocfs2_system_inode_info {
        char    *si_name;
        int     si_iflags;