freebsd-dev/sys/gnu/fs/reiserfs/reiserfs_item_ops.c

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/*-
* Copyright 2000 Hans Reiser
* See README for licensing and copyright details
*
2012-01-15 13:23:18 +00:00
* Ported to FreeBSD by Jean-Sébastien Pédron <jspedron@club-internet.fr>
*
* $FreeBSD$
*/
#include <gnu/fs/reiserfs/reiserfs_fs.h>
/* -------------------------------------------------------------------
* Stat data functions
* -------------------------------------------------------------------*/
static int
sd_bytes_number(struct item_head *ih, int block_size)
{
return (0);
}
struct item_operations stat_data_ops = {
.bytes_number = sd_bytes_number,
//.decrement_key = sd_decrement_key,
//.is_left_mergeable = sd_is_left_mergeable,
//.print_item = sd_print_item,
//.check_item = sd_check_item,
//.create_vi = sd_create_vi,
//.check_left = sd_check_left,
//.check_right = sd_check_right,
//.part_size = sd_part_size,
//.unit_num = sd_unit_num,
//.print_vi = sd_print_vi
};
/* -------------------------------------------------------------------
* Direct item functions
* -------------------------------------------------------------------*/
static int
direct_bytes_number(struct item_head *ih, int block_size)
{
return (ih_item_len(ih));
}
struct item_operations direct_ops = {
.bytes_number = direct_bytes_number,
//.decrement_key = direct_decrement_key,
//.is_left_mergeable = direct_is_left_mergeable,
//.print_item = direct_print_item,
//.check_item = direct_check_item,
//.create_vi = direct_create_vi,
//.check_left = direct_check_left,
//.check_right = direct_check_right,
//.part_size = direct_part_size,
//.unit_num = direct_unit_num,
//.print_vi = direct_print_vi
};
/* -------------------------------------------------------------------
* Indirect item functions
* -------------------------------------------------------------------*/
static int
indirect_bytes_number(struct item_head *ih, int block_size)
{
return (ih_item_len(ih) / UNFM_P_SIZE * block_size);
}
struct item_operations indirect_ops = {
.bytes_number = indirect_bytes_number,
//.decrement_key = indirect_decrement_key,
//.is_left_mergeable = indirect_is_left_mergeable,
//.print_item = indirect_print_item,
//.check_item = indirect_check_item,
//.create_vi = indirect_create_vi,
//.check_left = indirect_check_left,
//.check_right = indirect_check_right,
//.part_size = indirect_part_size,
//.unit_num = indirect_unit_num,
//.print_vi = indirect_print_vi
};
/* -------------------------------------------------------------------
* Direntry functions
* -------------------------------------------------------------------*/
static int
direntry_bytes_number(struct item_head *ih, int block_size)
{
reiserfs_log(LOG_WARNING, "bytes number is asked for direntry\n");
return (0);
}
struct item_operations direntry_ops = {
.bytes_number = direntry_bytes_number,
//.decrement_key = direntry_decrement_key,
//.is_left_mergeable = direntry_is_left_mergeable,
//.print_item = direntry_print_item,
//.check_item = direntry_check_item,
//.create_vi = direntry_create_vi,
//.check_left = direntry_check_left,
//.check_right = direntry_check_right,
//.part_size = direntry_part_size,
//.unit_num = direntry_unit_num,
//.print_vi = direntry_print_vi
};
/* -------------------------------------------------------------------
* Error catching functions to catch errors caused by incorrect item
* types.
* -------------------------------------------------------------------*/
static int
errcatch_bytes_number(struct item_head *ih, int block_size)
{
reiserfs_log(LOG_WARNING, "invalid item type observed, run fsck ASAP");
return (0);
}
struct item_operations errcatch_ops = {
errcatch_bytes_number,
//errcatch_decrement_key,
//errcatch_is_left_mergeable,
//errcatch_print_item,
//errcatch_check_item,
//errcatch_create_vi,
//errcatch_check_left,
//errcatch_check_right,
//errcatch_part_size,
//errcatch_unit_num,
//errcatch_print_vi
};
#if !(TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && \
TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)
#error
#endif
struct item_operations *item_ops[TYPE_ANY + 1] = {
&stat_data_ops,
&indirect_ops,
&direct_ops,
&direntry_ops,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
&errcatch_ops /* This is to catch errors with invalid type (15th
entry for TYPE_ANY) */
};