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!

1 files changed, 664 insertions, 0 deletions

diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
new file mode 100644
index 00000000000..f4ea81ae0e0
--- /dev/null
+++ b/fs/reiserfs/procfs.c
@@ -0,0 +1,664 @@
+/* -*- linux-c -*- */
+
+/* fs/reiserfs/procfs.c */
+
+/*
+ * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
+ */
+
+/* proc info support a la one created by Sizif@Botik.RU for PGC */
+
+/* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/seq_file.h>
+#include <asm/uaccess.h>
+#include <linux/reiserfs_fs.h>
+#include <linux/reiserfs_fs_sb.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+
+#if defined( REISERFS_PROC_INFO )
+
+/*
+ * LOCKING:
+ *
+ * We rely on new Alexander Viro's super-block locking.
+ *
+ */
+
+static int show_version(struct seq_file *m, struct super_block *sb)
+{
+	char *format;
+    
+	if ( REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6) ) {
+		format = "3.6";
+	} else if ( REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5) ) {
+		format = "3.5";
+	} else {
+		format = "unknown";
+	}
+
+	seq_printf(m, "%s format\twith checks %s\n",
+			format,
+#if defined( CONFIG_REISERFS_CHECK )
+			"on"
+#else
+			"off"
+#endif
+		);
+	return 0;
+}
+
+int reiserfs_global_version_in_proc( char *buffer, char **start, off_t offset,
+				     int count, int *eof, void *data )
+{
+	*start = buffer;
+	*eof = 1;
+	return 0;
+}
+
+#define SF( x ) ( r -> x )
+#define SFP( x ) SF( s_proc_info_data.x )
+#define SFPL( x ) SFP( x[ level ] )
+#define SFPF( x ) SFP( scan_bitmap.x )
+#define SFPJ( x ) SFP( journal.x )
+
+#define D2C( x ) le16_to_cpu( x )
+#define D4C( x ) le32_to_cpu( x )
+#define DF( x ) D2C( rs -> s_v1.x )
+#define DFL( x ) D4C( rs -> s_v1.x )
+
+#define objectid_map( s, rs ) (old_format_only (s) ?				\
+                         (__u32 *)((struct reiserfs_super_block_v1 *)rs + 1) :	\
+			 (__u32 *)(rs + 1))
+#define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
+
+#define DJF( x ) le32_to_cpu( rs -> x )
+#define DJV( x ) le32_to_cpu( s_v1 -> x )
+#define DJP( x ) le32_to_cpu( jp -> x ) 
+#define JF( x ) ( r -> s_journal -> x )
+
+static int show_super(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *r = REISERFS_SB(sb);
+    
+	seq_printf(m,	"state: \t%s\n"
+			"mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
+			"gen. counter: \t%i\n"
+			"s_kmallocs: \t%i\n"
+			"s_disk_reads: \t%i\n"
+			"s_disk_writes: \t%i\n"
+			"s_fix_nodes: \t%i\n"
+			"s_do_balance: \t%i\n"
+			"s_unneeded_left_neighbor: \t%i\n"
+			"s_good_search_by_key_reada: \t%i\n"
+			"s_bmaps: \t%i\n"
+			"s_bmaps_without_search: \t%i\n"
+			"s_direct2indirect: \t%i\n"
+			"s_indirect2direct: \t%i\n"
+			"\n"
+			"max_hash_collisions: \t%i\n"
+
+			"breads: \t%lu\n"
+			"bread_misses: \t%lu\n"
+
+			"search_by_key: \t%lu\n"
+			"search_by_key_fs_changed: \t%lu\n"
+			"search_by_key_restarted: \t%lu\n"
+			
+			"insert_item_restarted: \t%lu\n"
+			"paste_into_item_restarted: \t%lu\n"
+			"cut_from_item_restarted: \t%lu\n"
+			"delete_solid_item_restarted: \t%lu\n"
+			"delete_item_restarted: \t%lu\n"
+
+			"leaked_oid: \t%lu\n"
+			"leaves_removable: \t%lu\n",
+
+			SF( s_mount_state ) == REISERFS_VALID_FS ?
+			"REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
+			reiserfs_r5_hash( sb ) ? "FORCE_R5 " : "",
+			reiserfs_rupasov_hash( sb ) ? "FORCE_RUPASOV " : "",
+			reiserfs_tea_hash( sb ) ? "FORCE_TEA " : "",
+			reiserfs_hash_detect( sb ) ? "DETECT_HASH " : "",
+			reiserfs_no_border( sb ) ? "NO_BORDER " : "BORDER ",
+			reiserfs_no_unhashed_relocation( sb ) ? "NO_UNHASHED_RELOCATION " : "",
+			reiserfs_hashed_relocation( sb ) ? "UNHASHED_RELOCATION " : "",
+			reiserfs_test4( sb ) ? "TEST4 " : "",
+			have_large_tails( sb ) ? "TAILS " : have_small_tails(sb)?"SMALL_TAILS ":"NO_TAILS ",
+			replay_only( sb ) ? "REPLAY_ONLY " : "",
+			convert_reiserfs( sb ) ? "CONV " : "",
+
+			atomic_read( &r -> s_generation_counter ),
+			SF( s_kmallocs ),
+			SF( s_disk_reads ),
+			SF( s_disk_writes ),
+			SF( s_fix_nodes ),
+			SF( s_do_balance ),
+			SF( s_unneeded_left_neighbor ),
+			SF( s_good_search_by_key_reada ),
+			SF( s_bmaps ),
+			SF( s_bmaps_without_search ),
+			SF( s_direct2indirect ),
+			SF( s_indirect2direct ),
+			SFP( max_hash_collisions ),
+			SFP( breads ),
+			SFP( bread_miss ),
+			SFP( search_by_key ),
+			SFP( search_by_key_fs_changed ),
+			SFP( search_by_key_restarted ),
+
+			SFP( insert_item_restarted ),
+			SFP( paste_into_item_restarted ),
+			SFP( cut_from_item_restarted ),
+			SFP( delete_solid_item_restarted ),
+			SFP( delete_item_restarted ),
+
+			SFP( leaked_oid ),
+			SFP( leaves_removable ) );
+
+	return 0;
+}
+
+static int show_per_level(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *r = REISERFS_SB(sb);
+	int level;
+
+	seq_printf(m,	"level\t"
+			"     balances"
+			" [sbk:  reads"
+			"   fs_changed"
+			"   restarted]"
+			"   free space"
+			"        items"
+			"   can_remove"
+			"         lnum"
+			"         rnum"
+			"       lbytes"
+			"       rbytes"
+			"     get_neig"
+			" get_neig_res"
+			"  need_l_neig"
+			"  need_r_neig"
+			"\n"
+			
+		);
+
+	for( level = 0 ; level < MAX_HEIGHT ; ++ level ) {
+		seq_printf(m,	"%i\t"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12li"
+				" %12li"
+				" %12li"
+				" %12li"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				" %12lu"
+				"\n",
+				level, 
+				SFPL( balance_at ),
+				SFPL( sbk_read_at ),
+				SFPL( sbk_fs_changed ),
+				SFPL( sbk_restarted ),
+				SFPL( free_at ),
+				SFPL( items_at ),
+				SFPL( can_node_be_removed ),
+				SFPL( lnum ),
+				SFPL( rnum ),
+				SFPL( lbytes ),
+				SFPL( rbytes ),
+				SFPL( get_neighbors ),
+				SFPL( get_neighbors_restart ),
+				SFPL( need_l_neighbor ),
+				SFPL( need_r_neighbor )
+			);
+	}
+	return 0;
+}
+
+static int show_bitmap(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *r = REISERFS_SB(sb);
+
+	seq_printf(m,	"free_block: %lu\n"
+			"  scan_bitmap:"
+			"          wait"
+			"          bmap"
+			"         retry"
+			"        stolen"
+			"  journal_hint"
+			"journal_nohint"
+			"\n"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			" %14lu"
+			"\n",
+			SFP( free_block ),
+			SFPF( call ), 
+			SFPF( wait ), 
+			SFPF( bmap ),
+			SFPF( retry ),
+			SFPF( stolen ),
+			SFPF( in_journal_hint ),
+			SFPF( in_journal_nohint ) );
+
+	return 0;
+}
+
+static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
+	struct reiserfs_super_block *rs = sb_info -> s_rs;
+	int hash_code = DFL( s_hash_function_code );
+	__u32 flags = DJF( s_flags );
+
+	seq_printf(m,	"block_count: \t%i\n"
+			"free_blocks: \t%i\n"
+			"root_block: \t%i\n"
+			"blocksize: \t%i\n"
+			"oid_maxsize: \t%i\n"
+			"oid_cursize: \t%i\n"
+			"umount_state: \t%i\n"
+			"magic: \t%10.10s\n"
+			"fs_state: \t%i\n"
+			"hash: \t%s\n"
+			"tree_height: \t%i\n"
+			"bmap_nr: \t%i\n"
+			"version: \t%i\n"
+			"flags: \t%x[%s]\n"
+			"reserved_for_journal: \t%i\n",
+
+			DFL( s_block_count ),
+			DFL( s_free_blocks ),
+			DFL( s_root_block ),
+			DF( s_blocksize ),
+			DF( s_oid_maxsize ),
+			DF( s_oid_cursize ),
+			DF( s_umount_state ),
+			rs -> s_v1.s_magic,
+			DF( s_fs_state ),
+			hash_code == TEA_HASH ? "tea" :
+			( hash_code == YURA_HASH ) ? "rupasov" :
+			( hash_code == R5_HASH ) ? "r5" :
+			( hash_code == UNSET_HASH ) ? "unset" : "unknown",
+			DF( s_tree_height ),
+			DF( s_bmap_nr ),
+			DF( s_version ),
+			flags,
+			( flags & reiserfs_attrs_cleared )
+			? "attrs_cleared" : "",
+			DF (s_reserved_for_journal));
+
+	return 0;
+}
+
+static int show_oidmap(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
+	struct reiserfs_super_block *rs = sb_info -> s_rs;
+	unsigned int mapsize = le16_to_cpu( rs -> s_v1.s_oid_cursize );
+	unsigned long total_used = 0;
+	int i;
+
+	for( i = 0 ; i < mapsize ; ++i ) {
+		__u32 right;
+
+		right = ( i == mapsize - 1 ) ? MAX_KEY_OBJECTID : MAP( i + 1 );
+		seq_printf(m, "%s: [ %x .. %x )\n",
+				( i & 1 ) ? "free" : "used", MAP( i ), right );
+		if( ! ( i & 1 ) ) {
+			total_used += right - MAP( i );
+		}
+	}
+#if defined( REISERFS_USE_OIDMAPF )
+	if( sb_info -> oidmap.use_file && ( sb_info -> oidmap.mapf != NULL ) ) {
+		loff_t size = sb_info->oidmap.mapf->f_dentry->d_inode->i_size;
+		total_used += size / sizeof( reiserfs_oidinterval_d_t );
+	}
+#endif
+	seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n", 
+			mapsize, 
+			mapsize, le16_to_cpu( rs -> s_v1.s_oid_maxsize ),
+			total_used);
+	return 0;
+}
+
+static int show_journal(struct seq_file *m, struct super_block *sb)
+{
+	struct reiserfs_sb_info *r = REISERFS_SB(sb);
+	struct reiserfs_super_block *rs = r -> s_rs;
+	struct journal_params *jp = &rs->s_v1.s_journal;
+	char b[BDEVNAME_SIZE];
+    
+
+	seq_printf(m,	 /* on-disk fields */
+ 			"jp_journal_1st_block: \t%i\n"
+ 			"jp_journal_dev: \t%s[%x]\n"
+ 			"jp_journal_size: \t%i\n"
+ 			"jp_journal_trans_max: \t%i\n"
+ 			"jp_journal_magic: \t%i\n"
+ 			"jp_journal_max_batch: \t%i\n"
+ 			"jp_journal_max_commit_age: \t%i\n"
+ 			"jp_journal_max_trans_age: \t%i\n"
+			/* incore fields */
+			"j_1st_reserved_block: \t%i\n"	  
+			"j_state: \t%li\n"			
+			"j_trans_id: \t%lu\n"
+			"j_mount_id: \t%lu\n"
+			"j_start: \t%lu\n"
+			"j_len: \t%lu\n"
+			"j_len_alloc: \t%lu\n"
+			"j_wcount: \t%i\n"
+			"j_bcount: \t%lu\n"
+			"j_first_unflushed_offset: \t%lu\n"
+			"j_last_flush_trans_id: \t%lu\n"
+			"j_trans_start_time: \t%li\n"
+			"j_list_bitmap_index: \t%i\n"
+			"j_must_wait: \t%i\n"
+			"j_next_full_flush: \t%i\n"
+			"j_next_async_flush: \t%i\n"
+			"j_cnode_used: \t%i\n"
+			"j_cnode_free: \t%i\n"
+			"\n"
+			/* reiserfs_proc_info_data_t.journal fields */
+			"in_journal: \t%12lu\n"
+			"in_journal_bitmap: \t%12lu\n"
+			"in_journal_reusable: \t%12lu\n"
+			"lock_journal: \t%12lu\n"
+			"lock_journal_wait: \t%12lu\n"
+			"journal_begin: \t%12lu\n"
+			"journal_relock_writers: \t%12lu\n"
+			"journal_relock_wcount: \t%12lu\n"
+			"mark_dirty: \t%12lu\n"
+			"mark_dirty_already: \t%12lu\n"
+			"mark_dirty_notjournal: \t%12lu\n"
+			"restore_prepared: \t%12lu\n"
+			"prepare: \t%12lu\n"
+			"prepare_retry: \t%12lu\n",
+
+                        DJP( jp_journal_1st_block ),
+                        bdevname(SB_JOURNAL(sb)->j_dev_bd, b),
+                        DJP( jp_journal_dev ),
+                        DJP( jp_journal_size ),
+                        DJP( jp_journal_trans_max ),
+                        DJP( jp_journal_magic ),
+                        DJP( jp_journal_max_batch ),
+			SB_JOURNAL(sb)->j_max_commit_age,
+                        DJP( jp_journal_max_trans_age ),
+
+			JF( j_1st_reserved_block ),			
+			JF( j_state ),			
+			JF( j_trans_id ),
+			JF( j_mount_id ),
+			JF( j_start ),
+			JF( j_len ),
+			JF( j_len_alloc ),
+			atomic_read( & r -> s_journal -> j_wcount ),
+			JF( j_bcount ),
+			JF( j_first_unflushed_offset ),
+			JF( j_last_flush_trans_id ),
+			JF( j_trans_start_time ),
+			JF( j_list_bitmap_index ),
+			JF( j_must_wait ),
+			JF( j_next_full_flush ),
+			JF( j_next_async_flush ),
+			JF( j_cnode_used ),
+			JF( j_cnode_free ),
+
+			SFPJ( in_journal ),
+			SFPJ( in_journal_bitmap ),
+			SFPJ( in_journal_reusable ),
+			SFPJ( lock_journal ),
+			SFPJ( lock_journal_wait ),
+			SFPJ( journal_being ),
+			SFPJ( journal_relock_writers ),
+			SFPJ( journal_relock_wcount ),
+			SFPJ( mark_dirty ),
+			SFPJ( mark_dirty_already ),
+			SFPJ( mark_dirty_notjournal ),
+			SFPJ( restore_prepared ),
+			SFPJ( prepare ),
+			SFPJ( prepare_retry )
+		);
+	return 0;
+}
+
+/* iterator */
+static int test_sb(struct super_block *sb, void *data)
+{
+	return data == sb;
+}
+
+static int set_sb(struct super_block *sb, void *data)
+{
+	return -ENOENT;
+}
+
+static void *r_start(struct seq_file *m, loff_t *pos)
+{
+	struct proc_dir_entry *de = m->private;
+	struct super_block *s = de->parent->data;
+	loff_t l = *pos;
+
+	if (l)
+		return NULL;
+
+	if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, s)))
+		return NULL;
+
+	up_write(&s->s_umount);
+
+	if (de->deleted) {
+		deactivate_super(s);
+		return NULL;
+	}
+
+	return s;
+}
+
+static void *r_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	if (v)
+		deactivate_super(v);
+	return NULL;
+}
+
+static void r_stop(struct seq_file *m, void *v)
+{
+	if (v)
+		deactivate_super(v);
+}
+
+static int r_show(struct seq_file *m, void *v)
+{
+	struct proc_dir_entry *de = m->private;
+	int (*show)(struct seq_file *, struct super_block *) = de->data;
+	return show(m, v);
+}
+
+static struct seq_operations r_ops = {
+	.start = r_start,
+	.next = r_next,
+	.stop = r_stop,
+	.show = r_show,
+};
+
+static int r_open(struct inode *inode, struct file *file)
+{
+	int ret = seq_open(file, &r_ops);
+
+	if (!ret) {
+		struct seq_file *m = file->private_data;
+		m->private = PDE(inode);
+	}
+	return ret;
+}
+
+static struct file_operations r_file_operations = {
+	.open		= r_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+static struct proc_dir_entry *proc_info_root = NULL;
+static const char proc_info_root_name[] = "fs/reiserfs";
+
+static void add_file(struct super_block *sb, char *name,
+	int (*func)(struct seq_file *, struct super_block *))
+{
+	struct proc_dir_entry *de;
+	de = create_proc_entry(name, 0, REISERFS_SB(sb)->procdir);
+	if (de) {
+		de->data = func;
+		de->proc_fops = &r_file_operations;
+	}
+}
+
+int reiserfs_proc_info_init( struct super_block *sb )
+{
+	spin_lock_init( & __PINFO( sb ).lock );
+	REISERFS_SB(sb)->procdir = proc_mkdir(reiserfs_bdevname (sb), proc_info_root);
+	if( REISERFS_SB(sb)->procdir ) {
+		REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
+		REISERFS_SB(sb)->procdir->data = sb;
+		add_file(sb, "version", show_version);
+		add_file(sb, "super", show_super);
+		add_file(sb, "per-level", show_per_level);
+		add_file(sb, "bitmap", show_bitmap);
+		add_file(sb, "on-disk-super", show_on_disk_super);
+		add_file(sb, "oidmap", show_oidmap);
+		add_file(sb, "journal", show_journal);
+		return 0;
+	}
+	reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
+			 proc_info_root_name, reiserfs_bdevname (sb) );
+	return 1;
+}
+
+int reiserfs_proc_info_done( struct super_block *sb )
+{
+	struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
+	if (de) {
+		remove_proc_entry("journal", de);
+		remove_proc_entry("oidmap", de);
+		remove_proc_entry("on-disk-super", de);
+		remove_proc_entry("bitmap", de);
+		remove_proc_entry("per-level", de);
+		remove_proc_entry("super", de);
+		remove_proc_entry("version", de);
+	}
+	spin_lock( & __PINFO( sb ).lock );
+	__PINFO( sb ).exiting = 1;
+	spin_unlock( & __PINFO( sb ).lock );
+	if ( proc_info_root ) {
+		remove_proc_entry( reiserfs_bdevname (sb), proc_info_root );
+		REISERFS_SB(sb)->procdir = NULL;
+	}
+	return 0;
+}
+
+struct proc_dir_entry *reiserfs_proc_register_global( char *name, 
+						      read_proc_t *func )
+{
+	return ( proc_info_root ) ? create_proc_read_entry( name, 0, 
+							    proc_info_root, 
+							    func, NULL ) : NULL;
+}
+
+void reiserfs_proc_unregister_global( const char *name )
+{
+	remove_proc_entry( name, proc_info_root );
+}
+
+int reiserfs_proc_info_global_init( void )
+{
+	if( proc_info_root == NULL ) {
+		proc_info_root = proc_mkdir(proc_info_root_name, NULL);
+		if( proc_info_root ) {
+			proc_info_root -> owner = THIS_MODULE;
+		} else {
+			reiserfs_warning (NULL,
+					  "reiserfs: cannot create /proc/%s",
+					  proc_info_root_name );
+			return 1;
+		}
+	}
+	return 0;
+}
+
+int reiserfs_proc_info_global_done( void )
+{
+	if ( proc_info_root != NULL ) {
+		proc_info_root = NULL;
+		remove_proc_entry(proc_info_root_name, NULL);
+	}
+	return 0;
+}
+
+/* REISERFS_PROC_INFO */
+#else
+
+int reiserfs_proc_info_init( struct super_block *sb ) { return 0; }
+int reiserfs_proc_info_done( struct super_block *sb ) { return 0; }
+
+struct proc_dir_entry *reiserfs_proc_register_global( char *name, 
+						      read_proc_t *func )
+{ return NULL; }
+
+void reiserfs_proc_unregister_global( const char *name ) {;}
+
+int reiserfs_proc_info_global_init( void ) { return 0; }
+int reiserfs_proc_info_global_done( void ) { return 0; }
+
+int reiserfs_global_version_in_proc( char *buffer, char **start, 
+				     off_t offset,
+				     int count, int *eof, void *data )
+{ return 0; }
+
+/* REISERFS_PROC_INFO */
+#endif
+
+/*
+ * $Log: procfs.c,v $
+ * Revision 1.1.8.2  2001/07/15 17:08:42  god
+ *  . use get_super() in procfs.c
+ *  . remove remove_save_link() from reiserfs_do_truncate()
+ *
+ * I accept terms and conditions stated in the Legal Agreement
+ * (available at http://www.namesys.com/legalese.html)
+ *
+ * Revision 1.1.8.1  2001/07/11 16:48:50  god
+ * proc info support
+ *
+ * I accept terms and conditions stated in the Legal Agreement
+ * (available at http://www.namesys.com/legalese.html)
+ *
+ */
+
+/* 
+ * Make Linus happy.
+ * Local variables:
+ * c-indentation-style: "K&R"
+ * mode-name: "LC"
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */