xfs: struct xfs_buf_log_format isn't variable sized.

[uclinux-h8/linux.git] / fs / xfs / xfs_types.h

diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
index 398cf68..7a41874 100644 (file)
--- a/fs/xfs/xfs_types.h
+++ b/fs/xfs/xfs_types.h
@@ -133,6 +133,20 @@ typedef __uint64_t xfs_filblks_t;  /* number of blocks in a file */
 #define        MAXAEXTNUM      ((xfs_aextnum_t)0x7fff)         /* signed short */
 
 /*
+ * Minimum and maximum blocksize and sectorsize.
+ * The blocksize upper limit is pretty much arbitrary.
+ * The sectorsize upper limit is due to sizeof(sb_sectsize).
+ */
+#define XFS_MIN_BLOCKSIZE_LOG  9       /* i.e. 512 bytes */
+#define XFS_MAX_BLOCKSIZE_LOG  16      /* i.e. 65536 bytes */
+#define XFS_MIN_BLOCKSIZE      (1 << XFS_MIN_BLOCKSIZE_LOG)
+#define XFS_MAX_BLOCKSIZE      (1 << XFS_MAX_BLOCKSIZE_LOG)
+#define XFS_MIN_SECTORSIZE_LOG 9       /* i.e. 512 bytes */
+#define XFS_MAX_SECTORSIZE_LOG 15      /* i.e. 32768 bytes */
+#define XFS_MIN_SECTORSIZE     (1 << XFS_MIN_SECTORSIZE_LOG)
+#define XFS_MAX_SECTORSIZE     (1 << XFS_MAX_SECTORSIZE_LOG)
+
+/*
  * Min numbers of data/attr fork btree root pointers.
  */
 #define MINDBTPTRS     3