OpenVZ Forum - RDF feed
type: channel
items: [PATCH 03/12] proc: switch /proc/bus/zorro/devices to seq_file interface

[PATCH 03/12] proc: switch /proc/bus/zorro/devices to seq_file interface
type: item
description: Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> --- drivers/zorro/proc.c | 72 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 47 insertions(+), 25 deletions(-) --- a/drivers/zorro/proc.c +++ b/drivers/zorro/proc.c @@ -13,6 +13,7 @@ #include <linux/types.h> #include <linux/zorro.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/init.h> #include <linux/smp_lock.h> #include <asm/uaccess.h> @@ -80,32 +81,53 @@ static const struct file_operations proc_bus_zorro_operations = { .read = proc_bus_zorro_read, }; -static int -get_zorro_dev_info(char *buf, char **start, off_t pos, int count) +static void * zorro_seq_start(struct seq_file *m, loff_t *pos) { - u_int slot; - off_t at = 0; - int len, cnt; - - for (slot = cnt = 0; slot < zorro_num_autocon && count > cnt; slot++) { - struct zorro_dev *z = &zorro_autocon[slot]; - len = sprintf(buf, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, - z->id, (unsigned long)zorro_resource_start(z), - (unsigned long)zorro_resource_len(z), - z->rom.er_Type); - at += len; - if (at >= pos) { - if (!*start) { - *start = buf + (pos - (at - len)); - cnt = at - pos; - } else - cnt += len; - buf += len; - } - } - return (count > cnt) ? cnt : count; + return (*pos < zorro_num_autocon) ? pos : NULL; +} + +static void * zorro_seq_next(struct seq_file *m, void *v, loff_t *pos) +{ + (*pos)++; + return (*pos < zorro_num_autocon) ? pos : NULL; +} + +static void zorro_seq_stop(struct seq_file *m, void *v) +{ +} + +static int zorro_seq_show(struct seq_file *m, void *v) +{ + u_int slot = *(loff_t *)v; + struct zorro_dev *z = &zorro_autocon[slot]; + + seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id, + (unsigned long)zorro_resource_start(z), + (unsigned long)zorro_resource_len(z), + z->rom.er_Type); + return 0; +} + +static const struct seq_operations zorro_devices_seq_ops = { + .start = zorro_seq_start, + .next = zorro_seq_next, + .stop = zorro_seq_stop, + .show = zorro_seq_show, +}; + +static int zorro_de…
creator: Alexey Dobriyan
date: 2008-04-08T14:52:57-00:00