Linux-2.6.12-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!
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
new file mode 100644
index 0000000..0c6799f
--- /dev/null
+++ b/fs/affs/affs.h
@@ -0,0 +1,304 @@
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/buffer_head.h>
+#include <linux/affs_fs.h>
+#include <linux/amigaffs.h>
+
+/* AmigaOS allows file names with up to 30 characters length.
+ * Names longer than that will be silently truncated. If you
+ * want to disallow this, comment out the following #define.
+ * Creating filesystem objects with longer names will then
+ * result in an error (ENAMETOOLONG).
+ */
+/*#define AFFS_NO_TRUNCATE */
+
+/* Ugly macros make the code more pretty. */
+
+#define GET_END_PTR(st,p,sz) ((st *)((char *)(p)+((sz)-sizeof(st))))
+#define AFFS_GET_HASHENTRY(data,hashkey) be32_to_cpu(((struct dir_front *)data)->hashtable[hashkey])
+#define AFFS_BLOCK(sb, bh, blk) (AFFS_HEAD(bh)->table[AFFS_SB(sb)->s_hashsize-1-(blk)])
+
+#ifdef __LITTLE_ENDIAN
+#define BO_EXBITS 0x18UL
+#elif defined(__BIG_ENDIAN)
+#define BO_EXBITS 0x00UL
+#else
+#error Endianness must be known for affs to work.
+#endif
+
+#define AFFS_HEAD(bh) ((struct affs_head *)(bh)->b_data)
+#define AFFS_TAIL(sb, bh) ((struct affs_tail *)((bh)->b_data+(sb)->s_blocksize-sizeof(struct affs_tail)))
+#define AFFS_ROOT_HEAD(bh) ((struct affs_root_head *)(bh)->b_data)
+#define AFFS_ROOT_TAIL(sb, bh) ((struct affs_root_tail *)((bh)->b_data+(sb)->s_blocksize-sizeof(struct affs_root_tail)))
+#define AFFS_DATA_HEAD(bh) ((struct affs_data_head *)(bh)->b_data)
+#define AFFS_DATA(bh) (((struct affs_data_head *)(bh)->b_data)->data)
+
+#define AFFS_CACHE_SIZE PAGE_SIZE
+
+#define AFFS_MAX_PREALLOC 32
+#define AFFS_LC_SIZE (AFFS_CACHE_SIZE/sizeof(u32)/2)
+#define AFFS_AC_SIZE (AFFS_CACHE_SIZE/sizeof(struct affs_ext_key)/2)
+#define AFFS_AC_MASK (AFFS_AC_SIZE-1)
+
+struct affs_ext_key {
+ u32 ext; /* idx of the extended block */
+ u32 key; /* block number */
+};
+
+/*
+ * affs fs inode data in memory
+ */
+struct affs_inode_info {
+ u32 i_opencnt;
+ struct semaphore i_link_lock; /* Protects internal inode access. */
+ struct semaphore i_ext_lock; /* Protects internal inode access. */
+#define i_hash_lock i_ext_lock
+ u32 i_blkcnt; /* block count */
+ u32 i_extcnt; /* extended block count */
+ u32 *i_lc; /* linear cache of extended blocks */
+ u32 i_lc_size;
+ u32 i_lc_shift;
+ u32 i_lc_mask;
+ struct affs_ext_key *i_ac; /* associative cache of extended blocks */
+ u32 i_ext_last; /* last accessed extended block */
+ struct buffer_head *i_ext_bh; /* bh of last extended block */
+ loff_t mmu_private;
+ u32 i_protect; /* unused attribute bits */
+ u32 i_lastalloc; /* last allocated block */
+ int i_pa_cnt; /* number of preallocated blocks */
+ struct inode vfs_inode;
+};
+
+/* short cut to get to the affs specific inode data */
+static inline struct affs_inode_info *AFFS_I(struct inode *inode)
+{
+ return list_entry(inode, struct affs_inode_info, vfs_inode);
+}
+
+/*
+ * super-block data in memory
+ *
+ * Block numbers are adjusted for their actual size
+ *
+ */
+
+struct affs_bm_info {
+ u32 bm_key; /* Disk block number */
+ u32 bm_free; /* Free blocks in here */
+};
+
+struct affs_sb_info {
+ int s_partition_size; /* Partition size in blocks. */
+ int s_reserved; /* Number of reserved blocks. */
+ //u32 s_blksize; /* Initial device blksize */
+ u32 s_data_blksize; /* size of the data block w/o header */
+ u32 s_root_block; /* FFS root block number. */
+ int s_hashsize; /* Size of hash table. */
+ unsigned long s_flags; /* See below. */
+ uid_t s_uid; /* uid to override */
+ gid_t s_gid; /* gid to override */
+ umode_t s_mode; /* mode to override */
+ struct buffer_head *s_root_bh; /* Cached root block. */
+ struct semaphore s_bmlock; /* Protects bitmap access. */
+ struct affs_bm_info *s_bitmap; /* Bitmap infos. */
+ u32 s_bmap_count; /* # of bitmap blocks. */
+ u32 s_bmap_bits; /* # of bits in one bitmap blocks */
+ u32 s_last_bmap;
+ struct buffer_head *s_bmap_bh;
+ char *s_prefix; /* Prefix for volumes and assigns. */
+ int s_prefix_len; /* Length of prefix. */
+ char s_volume[32]; /* Volume prefix for absolute symlinks. */
+};
+
+#define SF_INTL 0x0001 /* International filesystem. */
+#define SF_BM_VALID 0x0002 /* Bitmap is valid. */
+#define SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */
+#define SF_QUIET 0x0008 /* chmod errors will be not reported */
+#define SF_SETUID 0x0010 /* Ignore Amiga uid */
+#define SF_SETGID 0x0020 /* Ignore Amiga gid */
+#define SF_SETMODE 0x0040 /* Ignore Amiga protection bits */
+#define SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */
+#define SF_OFS 0x0200 /* Old filesystem */
+#define SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
+#define SF_VERBOSE 0x0800 /* Talk about fs when mounting */
+
+/* short cut to get to the affs specific sb data */
+static inline struct affs_sb_info *AFFS_SB(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+/* amigaffs.c */
+
+extern int affs_insert_hash(struct inode *inode, struct buffer_head *bh);
+extern int affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh);
+extern int affs_remove_header(struct dentry *dentry);
+extern u32 affs_checksum_block(struct super_block *sb, struct buffer_head *bh);
+extern void affs_fix_checksum(struct super_block *sb, struct buffer_head *bh);
+extern void secs_to_datestamp(time_t secs, struct affs_date *ds);
+extern mode_t prot_to_mode(u32 prot);
+extern void mode_to_prot(struct inode *inode);
+extern void affs_error(struct super_block *sb, const char *function, const char *fmt, ...);
+extern void affs_warning(struct super_block *sb, const char *function, const char *fmt, ...);
+extern int affs_check_name(const unsigned char *name, int len);
+extern int affs_copy_name(unsigned char *bstr, struct dentry *dentry);
+
+/* bitmap. c */
+
+extern u32 affs_count_free_blocks(struct super_block *s);
+extern void affs_free_block(struct super_block *sb, u32 block);
+extern u32 affs_alloc_block(struct inode *inode, u32 goal);
+extern int affs_init_bitmap(struct super_block *sb, int *flags);
+extern void affs_free_bitmap(struct super_block *sb);
+
+/* namei.c */
+
+extern int affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len);
+extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);
+extern int affs_unlink(struct inode *dir, struct dentry *dentry);
+extern int affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *);
+extern int affs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+extern int affs_rmdir(struct inode *dir, struct dentry *dentry);
+extern int affs_link(struct dentry *olddentry, struct inode *dir,
+ struct dentry *dentry);
+extern int affs_symlink(struct inode *dir, struct dentry *dentry,
+ const char *symname);
+extern int affs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry);
+
+/* inode.c */
+
+extern unsigned long affs_parent_ino(struct inode *dir);
+extern struct inode *affs_new_inode(struct inode *dir);
+extern int affs_notify_change(struct dentry *dentry, struct iattr *attr);
+extern void affs_put_inode(struct inode *inode);
+extern void affs_delete_inode(struct inode *inode);
+extern void affs_clear_inode(struct inode *inode);
+extern void affs_read_inode(struct inode *inode);
+extern int affs_write_inode(struct inode *inode, int);
+extern int affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s32 type);
+
+/* file.c */
+
+void affs_free_prealloc(struct inode *inode);
+extern void affs_truncate(struct inode *);
+
+/* dir.c */
+
+extern void affs_dir_truncate(struct inode *);
+
+/* jump tables */
+
+extern struct inode_operations affs_file_inode_operations;
+extern struct inode_operations affs_dir_inode_operations;
+extern struct inode_operations affs_symlink_inode_operations;
+extern struct file_operations affs_file_operations;
+extern struct file_operations affs_file_operations_ofs;
+extern struct file_operations affs_dir_operations;
+extern struct address_space_operations affs_symlink_aops;
+extern struct address_space_operations affs_aops;
+extern struct address_space_operations affs_aops_ofs;
+
+extern struct dentry_operations affs_dentry_operations;
+extern struct dentry_operations affs_dentry_operations_intl;
+
+static inline void
+affs_set_blocksize(struct super_block *sb, int size)
+{
+ sb_set_blocksize(sb, size);
+}
+static inline struct buffer_head *
+affs_bread(struct super_block *sb, int block)
+{
+ pr_debug("affs_bread: %d\n", block);
+ if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
+ return sb_bread(sb, block);
+ return NULL;
+}
+static inline struct buffer_head *
+affs_getblk(struct super_block *sb, int block)
+{
+ pr_debug("affs_getblk: %d\n", block);
+ if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size)
+ return sb_getblk(sb, block);
+ return NULL;
+}
+static inline struct buffer_head *
+affs_getzeroblk(struct super_block *sb, int block)
+{
+ struct buffer_head *bh;
+ pr_debug("affs_getzeroblk: %d\n", block);
+ if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
+ bh = sb_getblk(sb, block);
+ lock_buffer(bh);
+ memset(bh->b_data, 0 , sb->s_blocksize);
+ set_buffer_uptodate(bh);
+ unlock_buffer(bh);
+ return bh;
+ }
+ return NULL;
+}
+static inline struct buffer_head *
+affs_getemptyblk(struct super_block *sb, int block)
+{
+ struct buffer_head *bh;
+ pr_debug("affs_getemptyblk: %d\n", block);
+ if (block >= AFFS_SB(sb)->s_reserved && block < AFFS_SB(sb)->s_partition_size) {
+ bh = sb_getblk(sb, block);
+ wait_on_buffer(bh);
+ set_buffer_uptodate(bh);
+ return bh;
+ }
+ return NULL;
+}
+static inline void
+affs_brelse(struct buffer_head *bh)
+{
+ if (bh)
+ pr_debug("affs_brelse: %lld\n", (long long) bh->b_blocknr);
+ brelse(bh);
+}
+
+static inline void
+affs_adjust_checksum(struct buffer_head *bh, u32 val)
+{
+ u32 tmp = be32_to_cpu(((__be32 *)bh->b_data)[5]);
+ ((__be32 *)bh->b_data)[5] = cpu_to_be32(tmp - val);
+}
+static inline void
+affs_adjust_bitmapchecksum(struct buffer_head *bh, u32 val)
+{
+ u32 tmp = be32_to_cpu(((__be32 *)bh->b_data)[0]);
+ ((__be32 *)bh->b_data)[0] = cpu_to_be32(tmp - val);
+}
+
+static inline void
+affs_lock_link(struct inode *inode)
+{
+ down(&AFFS_I(inode)->i_link_lock);
+}
+static inline void
+affs_unlock_link(struct inode *inode)
+{
+ up(&AFFS_I(inode)->i_link_lock);
+}
+static inline void
+affs_lock_dir(struct inode *inode)
+{
+ down(&AFFS_I(inode)->i_hash_lock);
+}
+static inline void
+affs_unlock_dir(struct inode *inode)
+{
+ up(&AFFS_I(inode)->i_hash_lock);
+}
+static inline void
+affs_lock_ext(struct inode *inode)
+{
+ down(&AFFS_I(inode)->i_ext_lock);
+}
+static inline void
+affs_unlock_ext(struct inode *inode)
+{
+ up(&AFFS_I(inode)->i_ext_lock);
+}