PERFORCE change 182718 for review

[Zheng Liu]

http://p4web.freebsd.org/@@182718?ac=10

Change 182718 by lz at gnehzuil-freebsd on 2010/08/22 05:49:07

	       Recovery ext2fs.h file.

Affected files ...

.. //depot/projects/soc2010/ext4fs/src/sys/fs/ext2fs/ext2fs.h#10 edit

Differences ...

==== //depot/projects/soc2010/ext4fs/src/sys/fs/ext2fs/ext2fs.h#10 (text+ko) ====

@@ -39,6 +39,7 @@
 
 #include <sys/types.h>
 #include <sys/lock.h>
+#include <fs/ext2fs/ext2_rsv_win.h>
 #include <machine/atomic.h>
 
 /*
@@ -92,6 +93,15 @@
  */
 #define MAXMNTLEN 512
 
+/* ext4 flex block group data structure */
+struct ext4_flex_groups {
+        long e2fg_nifree;
+        long e2fg_nbfree;
+        long e2fg_ndirs;
+};
+
+#define EXT4_FLEX_ALLOC_DIR_SIZE 4
+
 /*
  * Super block for an ext2fs file system.
  */
@@ -205,6 +215,13 @@
 	off_t e2fs_maxfilesize;
 	struct ext2_gd *e2fs_gd;  /* Group Descriptors */
 
+	struct mtx e2fs_rsv_lock;               /* Protect reservation window RB tree */
+	struct ext2_rsv_win_tree e2fs_rsv_tree; /* Reservation window index */
+
+        u_int8_t e2fs_log_gpf;    /* FLEX_BG group size */
+        int      e2fs_descpbbits;
+        struct ext4_flex_groups *e2fs_fg;
+
         u_int16_t e2fs_min_extra_isize;        /* all inodes have at least some bytes */
         u_int16_t e2fs_want_extra_isize;       /* new inodes should reserve some bytes */
 };
@@ -252,8 +269,7 @@
 #define EXT4F_INCOMPAT_EXTENTS          0x0040
 #define EXT4F_INCOMPAT_64BIT            0x0080
 #define EXT4F_INCOMPAT_MMP              0x0100
-#define EXT4F_INCOMPAT_FLEX_BG          0x0200
-#define EXT4F_INCOMPAT_EAINODE          0x0400
+#define EXT4F_INCOMPAT_FLEX_BG          0X0200
 
 /*
  * Features supported in this implementation