forked from luck/tmp_suning_uos_patched
bd4c625c06
This was a pure indentation change, using: scripts/Lindent fs/reiserfs/*.c include/linux/reiserfs_*.h to make reiserfs match the regular Linux indentation style. As Jeff Mahoney <jeffm@suse.com> writes: The ReiserFS code is a mix of a number of different coding styles, sometimes different even from line-to-line. Since the code has been relatively stable for quite some time and there are few outstanding patches to be applied, it is time to reformat the code to conform to the Linux style standard outlined in Documentation/CodingStyle. This patch contains the result of running scripts/Lindent against fs/reiserfs/*.c and include/linux/reiserfs_*.h. There are places where the code can be made to look better, but I'd rather keep those patches separate so that there isn't a subtle by-hand hand accident in the middle of a huge patch. To be clear: This patch is reformatting *only*. A number of patches may follow that continue to make the code more consistent with the Linux coding style. Hans wasn't particularly enthusiastic about these patches, but said he wouldn't really oppose them either. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
644 lines
16 KiB
C
644 lines
16 KiB
C
/* -*- linux-c -*- */
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/* fs/reiserfs/procfs.c */
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/*
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* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
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*/
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/* proc info support a la one created by Sizif@Botik.RU for PGC */
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/* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/time.h>
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#include <linux/seq_file.h>
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#include <asm/uaccess.h>
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#include <linux/reiserfs_fs.h>
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#include <linux/reiserfs_fs_sb.h>
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#include <linux/smp_lock.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#if defined( REISERFS_PROC_INFO )
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/*
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* LOCKING:
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*
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* We rely on new Alexander Viro's super-block locking.
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*
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*/
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static int show_version(struct seq_file *m, struct super_block *sb)
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{
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char *format;
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if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
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format = "3.6";
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} else if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5)) {
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format = "3.5";
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} else {
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format = "unknown";
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}
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seq_printf(m, "%s format\twith checks %s\n", format,
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#if defined( CONFIG_REISERFS_CHECK )
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"on"
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#else
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"off"
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#endif
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);
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return 0;
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}
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int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
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int count, int *eof, void *data)
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{
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*start = buffer;
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*eof = 1;
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return 0;
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}
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#define SF( x ) ( r -> x )
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#define SFP( x ) SF( s_proc_info_data.x )
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#define SFPL( x ) SFP( x[ level ] )
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#define SFPF( x ) SFP( scan_bitmap.x )
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#define SFPJ( x ) SFP( journal.x )
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#define D2C( x ) le16_to_cpu( x )
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#define D4C( x ) le32_to_cpu( x )
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#define DF( x ) D2C( rs -> s_v1.x )
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#define DFL( x ) D4C( rs -> s_v1.x )
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#define objectid_map( s, rs ) (old_format_only (s) ? \
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(__le32 *)((struct reiserfs_super_block_v1 *)rs + 1) : \
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(__le32 *)(rs + 1))
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#define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
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#define DJF( x ) le32_to_cpu( rs -> x )
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#define DJV( x ) le32_to_cpu( s_v1 -> x )
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#define DJP( x ) le32_to_cpu( jp -> x )
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#define JF( x ) ( r -> s_journal -> x )
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static int show_super(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *r = REISERFS_SB(sb);
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seq_printf(m, "state: \t%s\n"
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"mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
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"gen. counter: \t%i\n"
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"s_kmallocs: \t%i\n"
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"s_disk_reads: \t%i\n"
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"s_disk_writes: \t%i\n"
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"s_fix_nodes: \t%i\n"
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"s_do_balance: \t%i\n"
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"s_unneeded_left_neighbor: \t%i\n"
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"s_good_search_by_key_reada: \t%i\n"
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"s_bmaps: \t%i\n"
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"s_bmaps_without_search: \t%i\n"
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"s_direct2indirect: \t%i\n"
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"s_indirect2direct: \t%i\n"
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"\n"
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"max_hash_collisions: \t%i\n"
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"breads: \t%lu\n"
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"bread_misses: \t%lu\n"
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"search_by_key: \t%lu\n"
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"search_by_key_fs_changed: \t%lu\n"
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"search_by_key_restarted: \t%lu\n"
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"insert_item_restarted: \t%lu\n"
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"paste_into_item_restarted: \t%lu\n"
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"cut_from_item_restarted: \t%lu\n"
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"delete_solid_item_restarted: \t%lu\n"
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"delete_item_restarted: \t%lu\n"
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"leaked_oid: \t%lu\n"
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"leaves_removable: \t%lu\n",
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SF(s_mount_state) == REISERFS_VALID_FS ?
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"REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
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reiserfs_r5_hash(sb) ? "FORCE_R5 " : "",
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reiserfs_rupasov_hash(sb) ? "FORCE_RUPASOV " : "",
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reiserfs_tea_hash(sb) ? "FORCE_TEA " : "",
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reiserfs_hash_detect(sb) ? "DETECT_HASH " : "",
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reiserfs_no_border(sb) ? "NO_BORDER " : "BORDER ",
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reiserfs_no_unhashed_relocation(sb) ?
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"NO_UNHASHED_RELOCATION " : "",
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reiserfs_hashed_relocation(sb) ? "UNHASHED_RELOCATION " : "",
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reiserfs_test4(sb) ? "TEST4 " : "",
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have_large_tails(sb) ? "TAILS " : have_small_tails(sb) ?
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"SMALL_TAILS " : "NO_TAILS ",
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replay_only(sb) ? "REPLAY_ONLY " : "",
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convert_reiserfs(sb) ? "CONV " : "",
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atomic_read(&r->s_generation_counter), SF(s_kmallocs),
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SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
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SF(s_do_balance), SF(s_unneeded_left_neighbor),
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SF(s_good_search_by_key_reada), SF(s_bmaps),
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SF(s_bmaps_without_search), SF(s_direct2indirect),
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SF(s_indirect2direct), SFP(max_hash_collisions), SFP(breads),
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SFP(bread_miss), SFP(search_by_key),
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SFP(search_by_key_fs_changed), SFP(search_by_key_restarted),
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SFP(insert_item_restarted), SFP(paste_into_item_restarted),
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SFP(cut_from_item_restarted),
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SFP(delete_solid_item_restarted), SFP(delete_item_restarted),
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SFP(leaked_oid), SFP(leaves_removable));
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return 0;
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}
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static int show_per_level(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *r = REISERFS_SB(sb);
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int level;
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seq_printf(m, "level\t"
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" balances"
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" [sbk: reads"
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" fs_changed"
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" restarted]"
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" free space"
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" items"
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" can_remove"
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" lnum"
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" rnum"
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" lbytes"
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" rbytes"
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" get_neig"
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" get_neig_res" " need_l_neig" " need_r_neig" "\n");
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for (level = 0; level < MAX_HEIGHT; ++level) {
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seq_printf(m, "%i\t"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12li"
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" %12li"
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" %12li"
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" %12li"
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" %12lu"
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" %12lu"
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" %12lu"
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" %12lu"
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"\n",
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level,
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SFPL(balance_at),
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SFPL(sbk_read_at),
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SFPL(sbk_fs_changed),
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SFPL(sbk_restarted),
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SFPL(free_at),
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SFPL(items_at),
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SFPL(can_node_be_removed),
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SFPL(lnum),
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SFPL(rnum),
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SFPL(lbytes),
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SFPL(rbytes),
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SFPL(get_neighbors),
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SFPL(get_neighbors_restart),
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SFPL(need_l_neighbor), SFPL(need_r_neighbor)
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);
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}
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return 0;
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}
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static int show_bitmap(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *r = REISERFS_SB(sb);
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seq_printf(m, "free_block: %lu\n"
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" scan_bitmap:"
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" wait"
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" bmap"
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" retry"
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" stolen"
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" journal_hint"
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"journal_nohint"
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"\n"
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" %14lu"
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" %14lu"
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" %14lu"
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" %14lu"
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" %14lu"
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" %14lu"
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" %14lu"
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"\n",
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SFP(free_block),
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SFPF(call),
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SFPF(wait),
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SFPF(bmap),
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SFPF(retry),
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SFPF(stolen),
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SFPF(in_journal_hint), SFPF(in_journal_nohint));
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return 0;
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}
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static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
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struct reiserfs_super_block *rs = sb_info->s_rs;
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int hash_code = DFL(s_hash_function_code);
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__u32 flags = DJF(s_flags);
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seq_printf(m, "block_count: \t%i\n"
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"free_blocks: \t%i\n"
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"root_block: \t%i\n"
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"blocksize: \t%i\n"
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"oid_maxsize: \t%i\n"
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"oid_cursize: \t%i\n"
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"umount_state: \t%i\n"
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"magic: \t%10.10s\n"
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"fs_state: \t%i\n"
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"hash: \t%s\n"
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"tree_height: \t%i\n"
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"bmap_nr: \t%i\n"
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"version: \t%i\n"
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"flags: \t%x[%s]\n"
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"reserved_for_journal: \t%i\n",
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DFL(s_block_count),
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DFL(s_free_blocks),
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DFL(s_root_block),
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DF(s_blocksize),
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DF(s_oid_maxsize),
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DF(s_oid_cursize),
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DF(s_umount_state),
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rs->s_v1.s_magic,
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DF(s_fs_state),
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hash_code == TEA_HASH ? "tea" :
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(hash_code == YURA_HASH) ? "rupasov" :
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(hash_code == R5_HASH) ? "r5" :
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(hash_code == UNSET_HASH) ? "unset" : "unknown",
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DF(s_tree_height),
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DF(s_bmap_nr),
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DF(s_version), flags, (flags & reiserfs_attrs_cleared)
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? "attrs_cleared" : "", DF(s_reserved_for_journal));
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return 0;
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}
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static int show_oidmap(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
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struct reiserfs_super_block *rs = sb_info->s_rs;
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unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
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unsigned long total_used = 0;
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int i;
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for (i = 0; i < mapsize; ++i) {
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__u32 right;
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right = (i == mapsize - 1) ? MAX_KEY_OBJECTID : MAP(i + 1);
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seq_printf(m, "%s: [ %x .. %x )\n",
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(i & 1) ? "free" : "used", MAP(i), right);
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if (!(i & 1)) {
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total_used += right - MAP(i);
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}
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}
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#if defined( REISERFS_USE_OIDMAPF )
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if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
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loff_t size = sb_info->oidmap.mapf->f_dentry->d_inode->i_size;
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total_used += size / sizeof(reiserfs_oidinterval_d_t);
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}
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#endif
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seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n",
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mapsize,
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mapsize, le16_to_cpu(rs->s_v1.s_oid_maxsize), total_used);
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return 0;
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}
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static int show_journal(struct seq_file *m, struct super_block *sb)
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{
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struct reiserfs_sb_info *r = REISERFS_SB(sb);
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struct reiserfs_super_block *rs = r->s_rs;
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struct journal_params *jp = &rs->s_v1.s_journal;
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char b[BDEVNAME_SIZE];
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seq_printf(m, /* on-disk fields */
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"jp_journal_1st_block: \t%i\n"
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"jp_journal_dev: \t%s[%x]\n"
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"jp_journal_size: \t%i\n"
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"jp_journal_trans_max: \t%i\n"
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"jp_journal_magic: \t%i\n"
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"jp_journal_max_batch: \t%i\n"
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"jp_journal_max_commit_age: \t%i\n"
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"jp_journal_max_trans_age: \t%i\n"
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/* incore fields */
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"j_1st_reserved_block: \t%i\n"
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"j_state: \t%li\n"
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"j_trans_id: \t%lu\n"
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"j_mount_id: \t%lu\n"
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"j_start: \t%lu\n"
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"j_len: \t%lu\n"
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"j_len_alloc: \t%lu\n"
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"j_wcount: \t%i\n"
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"j_bcount: \t%lu\n"
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"j_first_unflushed_offset: \t%lu\n"
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"j_last_flush_trans_id: \t%lu\n"
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"j_trans_start_time: \t%li\n"
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"j_list_bitmap_index: \t%i\n"
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"j_must_wait: \t%i\n"
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"j_next_full_flush: \t%i\n"
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"j_next_async_flush: \t%i\n"
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"j_cnode_used: \t%i\n" "j_cnode_free: \t%i\n" "\n"
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/* reiserfs_proc_info_data_t.journal fields */
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"in_journal: \t%12lu\n"
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"in_journal_bitmap: \t%12lu\n"
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"in_journal_reusable: \t%12lu\n"
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"lock_journal: \t%12lu\n"
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"lock_journal_wait: \t%12lu\n"
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"journal_begin: \t%12lu\n"
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"journal_relock_writers: \t%12lu\n"
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"journal_relock_wcount: \t%12lu\n"
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"mark_dirty: \t%12lu\n"
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"mark_dirty_already: \t%12lu\n"
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"mark_dirty_notjournal: \t%12lu\n"
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"restore_prepared: \t%12lu\n"
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"prepare: \t%12lu\n"
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"prepare_retry: \t%12lu\n",
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DJP(jp_journal_1st_block),
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bdevname(SB_JOURNAL(sb)->j_dev_bd, b),
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DJP(jp_journal_dev),
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DJP(jp_journal_size),
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DJP(jp_journal_trans_max),
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DJP(jp_journal_magic),
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DJP(jp_journal_max_batch),
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SB_JOURNAL(sb)->j_max_commit_age,
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DJP(jp_journal_max_trans_age),
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JF(j_1st_reserved_block),
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JF(j_state),
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JF(j_trans_id),
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JF(j_mount_id),
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JF(j_start),
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JF(j_len),
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JF(j_len_alloc),
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atomic_read(&r->s_journal->j_wcount),
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JF(j_bcount),
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JF(j_first_unflushed_offset),
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JF(j_last_flush_trans_id),
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JF(j_trans_start_time),
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JF(j_list_bitmap_index),
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JF(j_must_wait),
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JF(j_next_full_flush),
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JF(j_next_async_flush),
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JF(j_cnode_used),
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JF(j_cnode_free),
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SFPJ(in_journal),
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SFPJ(in_journal_bitmap),
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SFPJ(in_journal_reusable),
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SFPJ(lock_journal),
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SFPJ(lock_journal_wait),
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SFPJ(journal_being),
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SFPJ(journal_relock_writers),
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SFPJ(journal_relock_wcount),
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SFPJ(mark_dirty),
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SFPJ(mark_dirty_already),
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SFPJ(mark_dirty_notjournal),
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SFPJ(restore_prepared), SFPJ(prepare), SFPJ(prepare_retry)
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);
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return 0;
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}
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/* iterator */
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static int test_sb(struct super_block *sb, void *data)
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{
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return data == sb;
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}
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static int set_sb(struct super_block *sb, void *data)
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{
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return -ENOENT;
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}
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static void *r_start(struct seq_file *m, loff_t * pos)
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{
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struct proc_dir_entry *de = m->private;
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struct super_block *s = de->parent->data;
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loff_t l = *pos;
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if (l)
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return NULL;
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if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, s)))
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return NULL;
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up_write(&s->s_umount);
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if (de->deleted) {
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deactivate_super(s);
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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:
|
|
*/
|