Import of Linux/MIPS 2.1.14

1 files changed, 47 insertions, 0 deletions

diff --git a/include/linux/affs_fs_i.h b/include/linux/affs_fs_i.h
new file mode 100644
index 000000000..40b823909
--- /dev/null
+++ b/include/linux/affs_fs_i.h
@@ -0,0 +1,47 @@
+#ifndef _AFFS_FS_I
+#define _AFFS_FS_I
+
+#include <linux/a.out.h>
+#include <linux/time.h>
+
+#define AFFS_MAX_PREALLOC	16	/* MUST be a power of 2 */
+#define AFFS_KCSIZE		73	/* Allows for 1 extension block at 512 byte-blocks */
+
+struct key_cache {
+	struct timeval	 kc_lru_time;	/* Last time this cache was used */
+	int	 kc_first;		/* First cached key */
+	int	 kc_last;		/* Last cached key */
+	int	 kc_this_key;		/* Key of extension block this data block keys are from */
+	int	 kc_this_seq;		/* Sequence number of this extension block */
+	int	 kc_next_key;		/* Key of next extension block */
+	int	 kc_keys[AFFS_KCSIZE];	/* Key cache */
+};
+
+#define EC_SIZE	(PAGE_SIZE - 4 * sizeof(struct key_cache) - 4) / 4
+
+struct ext_cache {
+	struct key_cache  kc[4];	/* The 4 key caches */
+	__s32	 ec[EC_SIZE];		/* Keys of assorted extension blocks */
+	int	 max_ext;		/* Index of last known extension block */
+};
+
+/*
+ * affs fs inode data in memory
+ */
+struct affs_inode_info {
+	__u32	 i_protect;		/* unused attribute bits */
+	__s32	 i_parent;		/* parent ino */
+	__s32	 i_original;		/* if != 0, this is the key of the original */
+	__s32	 i_data[AFFS_MAX_PREALLOC];	/* preallocated blocks */
+	struct ext_cache *i_ec;		/* Cache gets allocated dynamically */
+	int	 i_cache_users;		/* Cache cannot be freed while > 0 */
+	int	 i_lastblock;		/* last allocated block */
+	short	 i_pa_cnt;		/* number of preallocated blocks */
+	short	 i_pa_next;		/* Index of next block in i_data[] */
+	short	 i_pa_last;		/* Index of next free slot in i_data[] */
+	short	 i_zone;		/* write zone */
+	unsigned char i_hlink;		/* This is a fake */
+	unsigned char i_pad;
+};
+
+#endif