[linux.git] / fs / reiserfs / procfs.c

/* -*- linux-c -*- */

/* fs/reiserfs/procfs.c */

/*
 * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
 */

/* proc info support a la one created by [email protected] for PGC */

#include <linux/module.h>
#include <linux/time.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include "reiserfs.h"
#include <linux/init.h>
#include <linux/proc_fs.h>

/*
 * LOCKING:
 *
 * These guys are evicted from procfs as the very first step in ->kill_sb().
 *
 */

static int show_version(struct seq_file *m, void *unused)
{
	struct super_block *sb = m->private;
	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;
}

#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) ?				\
                         (__le32 *)((struct reiserfs_super_block_v1 *)rs + 1) :	\
			 (__le32 *)(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, void *unused)
{
	struct super_block *sb = m->private;
	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_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_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, void *unused)
{
	struct super_block *sb = m->private;
	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, void *unused)
{
	struct super_block *sb = m->private;
	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, void *unused)
{
	struct super_block *sb = m->private;
	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, void *unused)
{
	struct super_block *sb = m->private;
	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 = file_inode(sb_info->oidmap.mapf)->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 time64_t ktime_mono_to_real_seconds(time64_t mono)
{
	ktime_t kt = ktime_set(mono, NSEC_PER_SEC/2);

	return ktime_divns(ktime_mono_to_real(kt), NSEC_PER_SEC);
}

static int show_journal(struct seq_file *m, void *unused)
{
	struct super_block *sb = m->private;
	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;

	seq_printf(m,		/* on-disk fields */
		   "jp_journal_1st_block: \t%i\n"
		   "jp_journal_dev: \t%pg[%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%u\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%u\n"
		   "j_trans_start_time: \t%lli\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),
		   SB_JOURNAL(sb)->j_dev_bd,
		   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),
		   ktime_mono_to_real_seconds(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;
}

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 *, void *))
{
	proc_create_single_data(name, 0, REISERFS_SB(sb)->procdir, func, sb);
}

int reiserfs_proc_info_init(struct super_block *sb)
{
	char b[BDEVNAME_SIZE];
	char *s;

	/* Some block devices use /'s */
	strlcpy(b, sb->s_id, BDEVNAME_SIZE);
	s = strchr(b, '/');
	if (s)
		*s = '!';

	spin_lock_init(&__PINFO(sb).lock);
	REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb);
	if (REISERFS_SB(sb)->procdir) {
		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, "cannot create /proc/%s/%s",
			 proc_info_root_name, b);
	return 1;
}

int reiserfs_proc_info_done(struct super_block *sb)
{
	struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
	if (de) {
		char b[BDEVNAME_SIZE];
		char *s;

		/* Some block devices use /'s */
		strlcpy(b, sb->s_id, BDEVNAME_SIZE);
		s = strchr(b, '/');
		if (s)
			*s = '!';

		remove_proc_subtree(b, proc_info_root);
		REISERFS_SB(sb)->procdir = NULL;
	}
	return 0;
}

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) {
			reiserfs_warning(NULL, "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;
}
/*
 * 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:
 */
Commit	Line	Data
1da177e4 LT	1	/* -- linux-c -- */
	2
	3	/* fs/reiserfs/procfs.c */
	4
	5	/*
	6	* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
	7	*/
	8
	9	/* proc info support a la one created by [email protected] for PGC */
	10
1da177e4 LT	11	#include <linux/module.h>
	12	#include <linux/time.h>
	13	#include <linux/seq_file.h>
17093991	14	#include <linux/uaccess.h>
f466c6fd	15	#include "reiserfs.h"
1da177e4 LT	16	#include <linux/init.h>
	17	#include <linux/proc_fs.h>
	18
1da177e4 LT	19	/*
	20	* LOCKING:
	21	*
672fe15d	22	* These guys are evicted from procfs as the very first step in ->kill_sb().
1da177e4 LT	23	*
	24	*/
	25
672fe15d	26	static int show_version(struct seq_file m, void unused)
1da177e4	27	{
672fe15d	28	struct super_block *sb = m->private;
1da177e4	29	char *format;
bd4c625c LT	30
bd4c625c LT	31	if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
1da177e4	32	format = "3.6";
bd4c625c	33	} else if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5)) {
1da177e4 LT	34	format = "3.5";
	35	} else {
	36	format = "unknown";
	37	}
	38
bd4c625c	39	seq_printf(m, "%s format\twith checks %s\n", format,
1da177e4	40	#if defined( CONFIG_REISERFS_CHECK )
bd4c625c	41	"on"
1da177e4	42	#else
bd4c625c	43	"off"
1da177e4	44	#endif
bd4c625c	45	);
1da177e4 LT	46	return 0;
	47	}
	48
1da177e4 LT	49	#define SF( x ) ( r -> x )
	50	#define SFP( x ) SF( s_proc_info_data.x )
	51	#define SFPL( x ) SFP( x[ level ] )
	52	#define SFPF( x ) SFP( scan_bitmap.x )
	53	#define SFPJ( x ) SFP( journal.x )
	54
	55	#define D2C( x ) le16_to_cpu( x )
	56	#define D4C( x ) le32_to_cpu( x )
	57	#define DF( x ) D2C( rs -> s_v1.x )
	58	#define DFL( x ) D4C( rs -> s_v1.x )
	59
	60	#define objectid_map( s, rs ) (old_format_only (s) ? \
3e8962be AV	61	(__le32 )((struct reiserfs_super_block_v1 )rs + 1) : \
3e8962be AV	62	(__le32 *)(rs + 1))
1da177e4 LT	63	#define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
	64
	65	#define DJF( x ) le32_to_cpu( rs -> x )
	66	#define DJV( x ) le32_to_cpu( s_v1 -> x )
bd4c625c	67	#define DJP( x ) le32_to_cpu( jp -> x )
1da177e4 LT	68	#define JF( x ) ( r -> s_journal -> x )
1da177e4 LT	69
672fe15d	70	static int show_super(struct seq_file m, void unused)
1da177e4	71	{
672fe15d	72	struct super_block *sb = m->private;
1da177e4	73	struct reiserfs_sb_info *r = REISERFS_SB(sb);
bd4c625c LT	74
	75	seq_printf(m, "state: \t%s\n"
	76	"mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
	77	"gen. counter: \t%i\n"
bd4c625c LT	78	"s_disk_reads: \t%i\n"
	79	"s_disk_writes: \t%i\n"
	80	"s_fix_nodes: \t%i\n"
	81	"s_do_balance: \t%i\n"
	82	"s_unneeded_left_neighbor: \t%i\n"
	83	"s_good_search_by_key_reada: \t%i\n"
	84	"s_bmaps: \t%i\n"
	85	"s_bmaps_without_search: \t%i\n"
	86	"s_direct2indirect: \t%i\n"
	87	"s_indirect2direct: \t%i\n"
	88	"\n"
	89	"max_hash_collisions: \t%i\n"
	90	"breads: \t%lu\n"
	91	"bread_misses: \t%lu\n"
	92	"search_by_key: \t%lu\n"
	93	"search_by_key_fs_changed: \t%lu\n"
	94	"search_by_key_restarted: \t%lu\n"
	95	"insert_item_restarted: \t%lu\n"
	96	"paste_into_item_restarted: \t%lu\n"
	97	"cut_from_item_restarted: \t%lu\n"
	98	"delete_solid_item_restarted: \t%lu\n"
	99	"delete_item_restarted: \t%lu\n"
	100	"leaked_oid: \t%lu\n"
	101	"leaves_removable: \t%lu\n",
	102	SF(s_mount_state) == REISERFS_VALID_FS ?
	103	"REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
	104	reiserfs_r5_hash(sb) ? "FORCE_R5 " : "",
	105	reiserfs_rupasov_hash(sb) ? "FORCE_RUPASOV " : "",
	106	reiserfs_tea_hash(sb) ? "FORCE_TEA " : "",
	107	reiserfs_hash_detect(sb) ? "DETECT_HASH " : "",
	108	reiserfs_no_border(sb) ? "NO_BORDER " : "BORDER ",
	109	reiserfs_no_unhashed_relocation(sb) ?
	110	"NO_UNHASHED_RELOCATION " : "",
	111	reiserfs_hashed_relocation(sb) ? "UNHASHED_RELOCATION " : "",
	112	reiserfs_test4(sb) ? "TEST4 " : "",
	113	have_large_tails(sb) ? "TAILS " : have_small_tails(sb) ?
	114	"SMALL_TAILS " : "NO_TAILS ",
	115	replay_only(sb) ? "REPLAY_ONLY " : "",
	116	convert_reiserfs(sb) ? "CONV " : "",
d739b42b	117	atomic_read(&r->s_generation_counter),
bd4c625c LT	118	SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
	119	SF(s_do_balance), SF(s_unneeded_left_neighbor),
	120	SF(s_good_search_by_key_reada), SF(s_bmaps),
	121	SF(s_bmaps_without_search), SF(s_direct2indirect),
	122	SF(s_indirect2direct), SFP(max_hash_collisions), SFP(breads),
	123	SFP(bread_miss), SFP(search_by_key),
	124	SFP(search_by_key_fs_changed), SFP(search_by_key_restarted),
	125	SFP(insert_item_restarted), SFP(paste_into_item_restarted),
	126	SFP(cut_from_item_restarted),
	127	SFP(delete_solid_item_restarted), SFP(delete_item_restarted),
	128	SFP(leaked_oid), SFP(leaves_removable));
1da177e4 LT	129
	130	return 0;
	131	}
	132
672fe15d	133	static int show_per_level(struct seq_file m, void unused)
1da177e4	134	{
672fe15d	135	struct super_block *sb = m->private;
1da177e4 LT	136	struct reiserfs_sb_info *r = REISERFS_SB(sb);
	137	int level;
	138
bd4c625c LT	139	seq_printf(m, "level\t"
	140	" balances"
	141	" [sbk: reads"
	142	" fs_changed"
	143	" restarted]"
	144	" free space"
	145	" items"
	146	" can_remove"
	147	" lnum"
	148	" rnum"
	149	" lbytes"
	150	" rbytes"
	151	" get_neig"
	152	" get_neig_res" " need_l_neig" " need_r_neig" "\n");
	153
	154	for (level = 0; level < MAX_HEIGHT; ++level) {
	155	seq_printf(m, "%i\t"
	156	" %12lu"
	157	" %12lu"
	158	" %12lu"
	159	" %12lu"
	160	" %12lu"
	161	" %12lu"
	162	" %12lu"
	163	" %12li"
	164	" %12li"
	165	" %12li"
	166	" %12li"
	167	" %12lu"
	168	" %12lu"
	169	" %12lu"
	170	" %12lu"
	171	"\n",
	172	level,
	173	SFPL(balance_at),
	174	SFPL(sbk_read_at),
	175	SFPL(sbk_fs_changed),
	176	SFPL(sbk_restarted),
	177	SFPL(free_at),
	178	SFPL(items_at),
	179	SFPL(can_node_be_removed),
	180	SFPL(lnum),
	181	SFPL(rnum),
	182	SFPL(lbytes),
	183	SFPL(rbytes),
	184	SFPL(get_neighbors),
	185	SFPL(get_neighbors_restart),
	186	SFPL(need_l_neighbor), SFPL(need_r_neighbor)
	187	);
1da177e4 LT	188	}
	189	return 0;
	190	}
	191
672fe15d	192	static int show_bitmap(struct seq_file m, void unused)
1da177e4	193	{
672fe15d	194	struct super_block *sb = m->private;
1da177e4 LT	195	struct reiserfs_sb_info *r = REISERFS_SB(sb);
1da177e4 LT	196
bd4c625c LT	197	seq_printf(m, "free_block: %lu\n"
	198	" scan_bitmap:"
	199	" wait"
	200	" bmap"
	201	" retry"
	202	" stolen"
	203	" journal_hint"
	204	"journal_nohint"
	205	"\n"
	206	" %14lu"
	207	" %14lu"
	208	" %14lu"
	209	" %14lu"
	210	" %14lu"
	211	" %14lu"
	212	" %14lu"
	213	"\n",
	214	SFP(free_block),
	215	SFPF(call),
	216	SFPF(wait),
	217	SFPF(bmap),
	218	SFPF(retry),
	219	SFPF(stolen),
	220	SFPF(in_journal_hint), SFPF(in_journal_nohint));
1da177e4 LT	221
	222	return 0;
	223	}
	224
672fe15d	225	static int show_on_disk_super(struct seq_file m, void unused)
1da177e4	226	{
672fe15d	227	struct super_block *sb = m->private;
1da177e4	228	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
bd4c625c LT	229	struct reiserfs_super_block *rs = sb_info->s_rs;
	230	int hash_code = DFL(s_hash_function_code);
	231	__u32 flags = DJF(s_flags);
	232
	233	seq_printf(m, "block_count: \t%i\n"
	234	"free_blocks: \t%i\n"
	235	"root_block: \t%i\n"
	236	"blocksize: \t%i\n"
	237	"oid_maxsize: \t%i\n"
	238	"oid_cursize: \t%i\n"
	239	"umount_state: \t%i\n"
	240	"magic: \t%10.10s\n"
	241	"fs_state: \t%i\n"
	242	"hash: \t%s\n"
	243	"tree_height: \t%i\n"
	244	"bmap_nr: \t%i\n"
	245	"version: \t%i\n"
	246	"flags: \t%x[%s]\n"
	247	"reserved_for_journal: \t%i\n",
	248	DFL(s_block_count),
	249	DFL(s_free_blocks),
	250	DFL(s_root_block),
	251	DF(s_blocksize),
	252	DF(s_oid_maxsize),
	253	DF(s_oid_cursize),
	254	DF(s_umount_state),
	255	rs->s_v1.s_magic,
	256	DF(s_fs_state),
	257	hash_code == TEA_HASH ? "tea" :
	258	(hash_code == YURA_HASH) ? "rupasov" :
	259	(hash_code == R5_HASH) ? "r5" :
	260	(hash_code == UNSET_HASH) ? "unset" : "unknown",
	261	DF(s_tree_height),
	262	DF(s_bmap_nr),
	263	DF(s_version), flags, (flags & reiserfs_attrs_cleared)
	264	? "attrs_cleared" : "", DF(s_reserved_for_journal));
1da177e4 LT	265
	266	return 0;
	267	}
	268
672fe15d	269	static int show_oidmap(struct seq_file m, void unused)
1da177e4	270	{
672fe15d	271	struct super_block *sb = m->private;
1da177e4	272	struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
bd4c625c LT	273	struct reiserfs_super_block *rs = sb_info->s_rs;
bd4c625c LT	274	unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
1da177e4 LT	275	unsigned long total_used = 0;
	276	int i;
	277
bd4c625c	278	for (i = 0; i < mapsize; ++i) {
1da177e4 LT	279	__u32 right;
1da177e4 LT	280
bd4c625c	281	right = (i == mapsize - 1) ? MAX_KEY_OBJECTID : MAP(i + 1);
1da177e4	282	seq_printf(m, "%s: [ %x .. %x )\n",
bd4c625c LT	283	(i & 1) ? "free" : "used", MAP(i), right);
	284	if (!(i & 1)) {
	285	total_used += right - MAP(i);
1da177e4 LT	286	}
	287	}
	288	#if defined( REISERFS_USE_OIDMAPF )
bd4c625c	289	if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
496ad9aa	290	loff_t size = file_inode(sb_info->oidmap.mapf)->i_size;
bd4c625c	291	total_used += size / sizeof(reiserfs_oidinterval_d_t);
1da177e4 LT	292	}
1da177e4 LT	293	#endif
bd4c625c LT	294	seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n",
	295	mapsize,
	296	mapsize, le16_to_cpu(rs->s_v1.s_oid_maxsize), total_used);
1da177e4 LT	297	return 0;
	298	}
	299
34d08260 AB	300	static time64_t ktime_mono_to_real_seconds(time64_t mono)
	301	{
	302	ktime_t kt = ktime_set(mono, NSEC_PER_SEC/2);
	303
	304	return ktime_divns(ktime_mono_to_real(kt), NSEC_PER_SEC);
	305	}
	306
672fe15d	307	static int show_journal(struct seq_file m, void unused)
1da177e4	308	{
672fe15d	309	struct super_block *sb = m->private;
1da177e4	310	struct reiserfs_sb_info *r = REISERFS_SB(sb);
bd4c625c	311	struct reiserfs_super_block *rs = r->s_rs;
1da177e4	312	struct journal_params *jp = &rs->s_v1.s_journal;
bd4c625c LT	313
	314	seq_printf(m, /* on-disk fields */
	315	"jp_journal_1st_block: \t%i\n"
a1c6f057	316	"jp_journal_dev: \t%pg[%x]\n"
bd4c625c LT	317	"jp_journal_size: \t%i\n"
	318	"jp_journal_trans_max: \t%i\n"
	319	"jp_journal_magic: \t%i\n"
	320	"jp_journal_max_batch: \t%i\n"
	321	"jp_journal_max_commit_age: \t%i\n"
	322	"jp_journal_max_trans_age: \t%i\n"
	323	/* incore fields */
	324	"j_1st_reserved_block: \t%i\n"
	325	"j_state: \t%li\n"
600ed416	326	"j_trans_id: \t%u\n"
bd4c625c LT	327	"j_mount_id: \t%lu\n"
	328	"j_start: \t%lu\n"
	329	"j_len: \t%lu\n"
	330	"j_len_alloc: \t%lu\n"
	331	"j_wcount: \t%i\n"
	332	"j_bcount: \t%lu\n"
	333	"j_first_unflushed_offset: \t%lu\n"
600ed416	334	"j_last_flush_trans_id: \t%u\n"
34d08260	335	"j_trans_start_time: \t%lli\n"
bd4c625c LT	336	"j_list_bitmap_index: \t%i\n"
	337	"j_must_wait: \t%i\n"
	338	"j_next_full_flush: \t%i\n"
	339	"j_next_async_flush: \t%i\n"
	340	"j_cnode_used: \t%i\n" "j_cnode_free: \t%i\n" "\n"
	341	/* reiserfs_proc_info_data_t.journal fields */
	342	"in_journal: \t%12lu\n"
	343	"in_journal_bitmap: \t%12lu\n"
	344	"in_journal_reusable: \t%12lu\n"
	345	"lock_journal: \t%12lu\n"
	346	"lock_journal_wait: \t%12lu\n"
	347	"journal_begin: \t%12lu\n"
	348	"journal_relock_writers: \t%12lu\n"
	349	"journal_relock_wcount: \t%12lu\n"
	350	"mark_dirty: \t%12lu\n"
	351	"mark_dirty_already: \t%12lu\n"
	352	"mark_dirty_notjournal: \t%12lu\n"
	353	"restore_prepared: \t%12lu\n"
	354	"prepare: \t%12lu\n"
	355	"prepare_retry: \t%12lu\n",
	356	DJP(jp_journal_1st_block),
a1c6f057	357	SB_JOURNAL(sb)->j_dev_bd,
bd4c625c LT	358	DJP(jp_journal_dev),
	359	DJP(jp_journal_size),
	360	DJP(jp_journal_trans_max),
	361	DJP(jp_journal_magic),
	362	DJP(jp_journal_max_batch),
	363	SB_JOURNAL(sb)->j_max_commit_age,
	364	DJP(jp_journal_max_trans_age),
	365	JF(j_1st_reserved_block),
	366	JF(j_state),
	367	JF(j_trans_id),
	368	JF(j_mount_id),
	369	JF(j_start),
	370	JF(j_len),
	371	JF(j_len_alloc),
	372	atomic_read(&r->s_journal->j_wcount),
	373	JF(j_bcount),
	374	JF(j_first_unflushed_offset),
	375	JF(j_last_flush_trans_id),
34d08260	376	ktime_mono_to_real_seconds(JF(j_trans_start_time)),
bd4c625c LT	377	JF(j_list_bitmap_index),
	378	JF(j_must_wait),
	379	JF(j_next_full_flush),
	380	JF(j_next_async_flush),
	381	JF(j_cnode_used),
	382	JF(j_cnode_free),
	383	SFPJ(in_journal),
	384	SFPJ(in_journal_bitmap),
	385	SFPJ(in_journal_reusable),
	386	SFPJ(lock_journal),
	387	SFPJ(lock_journal_wait),
	388	SFPJ(journal_being),
	389	SFPJ(journal_relock_writers),
	390	SFPJ(journal_relock_wcount),
	391	SFPJ(mark_dirty),
	392	SFPJ(mark_dirty_already),
	393	SFPJ(mark_dirty_notjournal),
	394	SFPJ(restore_prepared), SFPJ(prepare), SFPJ(prepare_retry)
	395	);
1da177e4 LT	396	return 0;
	397	}
	398
1da177e4 LT	399	static struct proc_dir_entry *proc_info_root = NULL;
	400	static const char proc_info_root_name[] = "fs/reiserfs";
	401
	402	static void add_file(struct super_block sb, char name,
672fe15d	403	int (func) (struct seq_file , void *))
1da177e4	404	{
3f3942ac	405	proc_create_single_data(name, 0, REISERFS_SB(sb)->procdir, func, sb);
1da177e4 LT	406	}
1da177e4 LT	407
bd4c625c	408	int reiserfs_proc_info_init(struct super_block *sb)
1da177e4	409	{
6fbe82a9 JM	410	char b[BDEVNAME_SIZE];
	411	char *s;
	412
	413	/* Some block devices use /'s */
2ccdc413	414	strlcpy(b, sb->s_id, BDEVNAME_SIZE);
6fbe82a9 JM	415	s = strchr(b, '/');
	416	if (s)
	417	*s = '!';
	418
bd4c625c	419	spin_lock_init(&__PINFO(sb).lock);
270b5ac2	420	REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb);
bd4c625c	421	if (REISERFS_SB(sb)->procdir) {
1da177e4 LT	422	add_file(sb, "version", show_version);
	423	add_file(sb, "super", show_super);
	424	add_file(sb, "per-level", show_per_level);
	425	add_file(sb, "bitmap", show_bitmap);
	426	add_file(sb, "on-disk-super", show_on_disk_super);
	427	add_file(sb, "oidmap", show_oidmap);
	428	add_file(sb, "journal", show_journal);
	429	return 0;
	430	}
45b03d5e	431	reiserfs_warning(sb, "cannot create /proc/%s/%s",
6fbe82a9	432	proc_info_root_name, b);
1da177e4 LT	433	return 1;
	434	}
	435
bd4c625c	436	int reiserfs_proc_info_done(struct super_block *sb)
1da177e4 LT	437	{
1da177e4 LT	438	struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
121daf5f AV	439	if (de) {
	440	char b[BDEVNAME_SIZE];
	441	char *s;
6fbe82a9	442
121daf5f	443	/* Some block devices use /'s */
2ccdc413	444	strlcpy(b, sb->s_id, BDEVNAME_SIZE);
121daf5f AV	445	s = strchr(b, '/');
	446	if (s)
	447	*s = '!';
6fbe82a9	448
121daf5f	449	remove_proc_subtree(b, proc_info_root);
1da177e4 LT	450	REISERFS_SB(sb)->procdir = NULL;
	451	}
	452	return 0;
	453	}
	454
bd4c625c	455	int reiserfs_proc_info_global_init(void)
1da177e4	456	{
bd4c625c	457	if (proc_info_root == NULL) {
1da177e4	458	proc_info_root = proc_mkdir(proc_info_root_name, NULL);
99b76233	459	if (!proc_info_root) {
45b03d5e	460	reiserfs_warning(NULL, "cannot create /proc/%s",
bd4c625c	461	proc_info_root_name);
1da177e4 LT	462	return 1;
	463	}
	464	}
	465	return 0;
	466	}
	467
bd4c625c	468	int reiserfs_proc_info_global_done(void)
1da177e4	469	{
bd4c625c	470	if (proc_info_root != NULL) {
1da177e4 LT	471	proc_info_root = NULL;
	472	remove_proc_entry(proc_info_root_name, NULL);
	473	}
	474	return 0;
	475	}
1da177e4	476	/*
1da177e4 LT	477	* Revision 1.1.8.2 2001/07/15 17:08:42 god
	478	* . use get_super() in procfs.c
	479	* . remove remove_save_link() from reiserfs_do_truncate()
	480	*
	481	* I accept terms and conditions stated in the Legal Agreement
	482	* (available at http://www.namesys.com/legalese.html)
	483	*
	484	* Revision 1.1.8.1 2001/07/11 16:48:50 god
	485	* proc info support
	486	*
	487	* I accept terms and conditions stated in the Legal Agreement
	488	* (available at http://www.namesys.com/legalese.html)
	489	*
	490	*/
	491
0222e657	492	/*
1da177e4 LT	493	* Make Linus happy.
	494	* Local variables:
	495	* c-indentation-style: "K&R"
	496	* mode-name: "LC"
	497	* c-basic-offset: 8
	498	* tab-width: 8
	499	* End:
	500	*/