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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/efs_dir.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/efs_dir.h')
-rw-r--r--include/linux/efs_dir.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/efs_dir.h b/include/linux/efs_dir.h
new file mode 100644
index 0000000..a09ec01
--- /dev/null
+++ b/include/linux/efs_dir.h
@@ -0,0 +1,42 @@
+/*
+ * efs_dir.h
+ *
+ * Copyright (c) 1999 Al Smith
+ */
+
+#ifndef __EFS_DIR_H__
+#define __EFS_DIR_H__
+
+#define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS
+#define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS)
+
+struct efs_dentry {
+ __be32 inode;
+ unsigned char namelen;
+ char name[3];
+};
+
+#define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1)
+#define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1)
+
+#define EFS_DIRBLK_HEADERSIZE 4
+#define EFS_DIRBLK_MAGIC 0xbeef /* moo */
+
+struct efs_dir {
+ __be16 magic;
+ unsigned char firstused;
+ unsigned char slots;
+
+ unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE];
+};
+
+#define EFS_MAXENTS \
+ ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) / \
+ (EFS_DENTSIZE + sizeof(char)))
+
+#define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot])
+
+#define EFS_REALOFF(offset) ((offset << 1))
+
+#endif /* __EFS_DIR_H__ */
+
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