imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 89 insertions, 0 deletions

diff --git a/release/src/linux/linux/include/linux/sysv_fs_sb.h b/release/src/linux/linux/include/linux/sysv_fs_sb.h
new file mode 100644
index 00000000..b7f0d323
--- /dev/null
+++ b/release/src/linux/linux/include/linux/sysv_fs_sb.h
@@ -0,0 +1,89 @@
+#ifndef _SYSV_FS_SB
+#define _SYSV_FS_SB
+
+/*
+ * SystemV/V7/Coherent super-block data in memory
+ * The SystemV/V7/Coherent superblock contains dynamic data (it gets modified
+ * while the system is running). This is in contrast to the Minix and Berkeley
+ * filesystems (where the superblock is never modified). This affects the
+ * sync() operation: we must keep the superblock in a disk buffer and use this
+ * one as our "working copy".
+ */
+
+struct sysv_sb_info {
+	int	       s_type;		/* file system type: FSTYPE_{XENIX|SYSV|COH} */
+	char	       s_bytesex;	/* bytesex (le/be/pdp) */
+	char	       s_truncate;	/* if 1: names > SYSV_NAMELEN chars are truncated */
+					/* if 0: they are disallowed (ENAMETOOLONG) */
+	nlink_t        s_link_max;	/* max number of hard links to a file */
+	unsigned int   s_inodes_per_block;	/* number of inodes per block */
+	unsigned int   s_inodes_per_block_1;	/* inodes_per_block - 1 */
+	unsigned int   s_inodes_per_block_bits;	/* log2(inodes_per_block) */
+	unsigned int   s_ind_per_block;		/* number of indirections per block */
+	unsigned int   s_ind_per_block_bits;	/* log2(ind_per_block) */
+	unsigned int   s_ind_per_block_2;	/* ind_per_block ^ 2 */
+	unsigned int   s_toobig_block;		/* 10 + ipb + ipb^2 + ipb^3 */
+	unsigned int   s_block_base;	/* physical block number of block 0 */
+	unsigned short s_fic_size;	/* free inode cache size, NICINOD */
+	unsigned short s_flc_size;	/* free block list chunk size, NICFREE */
+	/* The superblock is kept in one or two disk buffers: */
+	struct buffer_head *s_bh1;
+	struct buffer_head *s_bh2;
+	/* These are pointers into the disk buffer, to compensate for
+	   different superblock layout. */
+	char *         s_sbd1;		/* entire superblock data, for part 1 */
+	char *         s_sbd2;		/* entire superblock data, for part 2 */
+	u16            *s_sb_fic_count;	/* pointer to s_sbd->s_ninode */
+        u16            *s_sb_fic_inodes; /* pointer to s_sbd->s_inode */
+	u16            *s_sb_total_free_inodes; /* pointer to s_sbd->s_tinode */
+	u16            *s_bcache_count;	/* pointer to s_sbd->s_nfree */
+	u32	       *s_bcache;	/* pointer to s_sbd->s_free */
+	u32            *s_free_blocks;	/* pointer to s_sbd->s_tfree */
+	u32            *s_sb_time;	/* pointer to s_sbd->s_time */
+	u32            *s_sb_state;	/* pointer to s_sbd->s_state, only FSTYPE_SYSV */
+	/* We keep those superblock entities that don't change here;
+	   this saves us an indirection and perhaps a conversion. */
+	u32            s_firstinodezone; /* index of first inode zone */
+	u32            s_firstdatazone;	/* same as s_sbd->s_isize */
+	u32            s_ninodes;	/* total number of inodes */
+	u32            s_ndatazones;	/* total number of data zones */
+	u32            s_nzones;	/* same as s_sbd->s_fsize */
+	u16	       s_namelen;       /* max length of dir entry */
+};
+/* The field s_toobig_block is currently unused. */
+
+/* sv_ == u.sysv_sb.s_ */
+#define sv_type					u.sysv_sb.s_type
+#define sv_bytesex				u.sysv_sb.s_bytesex
+#define sv_truncate				u.sysv_sb.s_truncate
+#define sv_link_max				u.sysv_sb.s_link_max
+#define sv_inodes_per_block			u.sysv_sb.s_inodes_per_block
+#define sv_inodes_per_block_1			u.sysv_sb.s_inodes_per_block_1
+#define sv_inodes_per_block_bits		u.sysv_sb.s_inodes_per_block_bits
+#define sv_ind_per_block			u.sysv_sb.s_ind_per_block
+#define sv_ind_per_block_bits			u.sysv_sb.s_ind_per_block_bits
+#define sv_ind_per_block_2			u.sysv_sb.s_ind_per_block_2
+#define sv_toobig_block				u.sysv_sb.s_toobig_block
+#define sv_block_base				u.sysv_sb.s_block_base
+#define sv_fic_size				u.sysv_sb.s_fic_size
+#define sv_flc_size				u.sysv_sb.s_flc_size
+#define sv_bh1					u.sysv_sb.s_bh1
+#define sv_bh2					u.sysv_sb.s_bh2
+#define sv_sbd1					u.sysv_sb.s_sbd1
+#define sv_sbd2					u.sysv_sb.s_sbd2
+#define sv_sb_fic_count				u.sysv_sb.s_sb_fic_count
+#define sv_sb_fic_inodes			u.sysv_sb.s_sb_fic_inodes
+#define sv_sb_total_free_inodes			u.sysv_sb.s_sb_total_free_inodes
+#define sv_bcache_count				u.sysv_sb.s_bcache_count
+#define sv_bcache				u.sysv_sb.s_bcache
+#define sv_free_blocks				u.sysv_sb.s_free_blocks
+#define sv_sb_time				u.sysv_sb.s_sb_time
+#define sv_sb_state				u.sysv_sb.s_sb_state
+#define sv_firstinodezone			u.sysv_sb.s_firstinodezone
+#define sv_firstdatazone			u.sysv_sb.s_firstdatazone
+#define sv_ninodes				u.sysv_sb.s_ninodes
+#define sv_ndatazones				u.sysv_sb.s_ndatazones
+#define sv_nzones				u.sysv_sb.s_nzones
+#define sv_namelen                              u.sysv_sb.s_namelen
+
+#endif