Exemple #1
0
// finds out which hash names are sorted with
static int what_hash (struct super_block * s)
{
    __u32 code;

    code = sb_hash_function_code(SB_DISK_SUPER_BLOCK(s));

    /* reiserfs_hash_detect() == true if any of the hash mount options
    ** were used.  We must check them to make sure the user isn't
    ** using a bad hash value
    */
    if (code == UNSET_HASH || reiserfs_hash_detect(s))
	code = find_hash_out (s);

    if (code != UNSET_HASH && reiserfs_hash_detect(s)) {
	/* detection has found the hash, and we must check against the 
	** mount options 
	*/
	if (reiserfs_rupasov_hash(s) && code != YURA_HASH) {
	    printk("REISERFS: Error, %s hash detected, "
		   "unable to force rupasov hash\n", reiserfs_hashname(code)) ;
	    code = UNSET_HASH ;
	} else if (reiserfs_tea_hash(s) && code != TEA_HASH) {
	    printk("REISERFS: Error, %s hash detected, "
		   "unable to force tea hash\n", reiserfs_hashname(code)) ;
	    code = UNSET_HASH ;
	} else if (reiserfs_r5_hash(s) && code != R5_HASH) {
	    printk("REISERFS: Error, %s hash detected, "
		   "unable to force r5 hash\n", reiserfs_hashname(code)) ;
	    code = UNSET_HASH ;
	} 
    } else { 
        /* find_hash_out was not called or could not determine the hash */
	if (reiserfs_rupasov_hash(s)) {
	    code = YURA_HASH ;
	} else if (reiserfs_tea_hash(s)) {
	    code = TEA_HASH ;
	} else if (reiserfs_r5_hash(s)) {
	    code = R5_HASH ;
	} 
    }

    /* if we are mounted RW, and we have a new valid hash code, update 
    ** the super
    */
    if (code != UNSET_HASH && 
	!(s->s_flags & MS_RDONLY) && 
        code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
        set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
    }
    return code;
}
Exemple #2
0
int reiserfs_super_in_proc( char *buffer, char **start, off_t offset,
			    int count, int *eof, void *data )
{
	struct super_block *sb;
	struct reiserfs_sb_info *r;
	int len = 0;
    
	sb = procinfo_prologue( ( kdev_t ) ( long ) data );
	if( sb == NULL )
		return -ENOENT;
	r = &sb->u.reiserfs_sb;
	len += sprintf( &buffer[ len ], 
			"state: \t%s\n"
			"mount options: \t%s%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 " : "",
			reiserfs_dont_log( sb ) ? "DONT_LOG " : "LOG ",
			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 ) );

	procinfo_epilogue( sb );
	return reiserfs_proc_tail( len, buffer, start, offset, count, eof );
}
Exemple #3
0
/* Finds out which hash names are sorted with */
static int
what_hash(struct reiserfs_mount *rmp)
{
	uint32_t code;
	struct reiserfs_sb_info *sbi = rmp->rm_reiserfs;

	find_hash_out(rmp);
	code = sb_hash_function_code(SB_DISK_SUPER_BLOCK(sbi));

	/*
	 * reiserfs_hash_detect() == true if any of the hash mount options
	 * were used. We must check them to make sure the user isn't using a
	 * bad hash value
	 */
	if (code == UNSET_HASH || reiserfs_hash_detect(sbi))
		code = find_hash_out(rmp);

	if (code != UNSET_HASH && reiserfs_hash_detect(sbi)) {
		/*
		 * Detection has found the hash, and we must check against
		 * the mount options
		 */
		if (reiserfs_rupasov_hash(sbi) && code != YURA_HASH) {
			reiserfs_log(LOG_ERR, "error, %s hash detected, "
			    "unable to force rupasov hash",
			    reiserfs_hashname(code));
			code = UNSET_HASH;
		} else if (reiserfs_tea_hash(sbi) && code != TEA_HASH) {
			reiserfs_log(LOG_ERR, "error, %s hash detected, "
			    "unable to force tea hash",
			    reiserfs_hashname(code));
			code = UNSET_HASH;
		} else if (reiserfs_r5_hash(sbi) && code != R5_HASH) {
			reiserfs_log(LOG_ERR, "error, %s hash detected, "
			    "unable to force r5 hash",
			    reiserfs_hashname(code));
			code = UNSET_HASH;
		}
	} else {
		/*
		 * Find_hash_out was not called or could not determine
		 * the hash
		 */
		if (reiserfs_rupasov_hash(sbi)) {
			code = YURA_HASH;
		} else if (reiserfs_tea_hash(sbi)) {
			code = TEA_HASH;
		} else if (reiserfs_r5_hash(sbi)) {
			code = R5_HASH;
		}
	}

	/* TODO Not supported yet */
#if 0
	/* If we are mounted RW, and we have a new valid hash code, update
	 * the super */
	if (code != UNSET_HASH &&
	    !(s->s_flags & MS_RDONLY) &&
	    code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
		set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
	}
#endif

	return (code);
}
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;
}