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mtd: convert to seq_file interface

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->read_proc interface is going away, switch to seq_file.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Alexey Dobriyan 2011-05-13 23:34:19 +03:00 committed by David Woodhouse
parent c5d8c0cae4
commit 447d9bd820
1 changed files with 19 additions and 31 deletions
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48
drivers/mtd/mtdcore.c
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@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ptrace.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/major.h>
@ -705,44 +706,32 @@ EXPORT_SYMBOL_GPL(mtd_kmalloc_up_to);
static struct proc_dir_entry *proc_mtd;
static inline int mtd_proc_info(char *buf, struct mtd_info *this)
{
return sprintf(buf, "mtd%d: %8.8llx %8.8x \"%s\"\n", this->index,
(unsigned long long)this->size,
this->erasesize, this->name);
}
static int mtd_read_proc (char *page, char **start, off_t off, int count,
int *eof, void *data_unused)
static int mtd_proc_show(struct seq_file *m, void *v)
{
struct mtd_info *mtd;
int len, l;
off_t begin = 0;
seq_puts(m, "dev: size erasesize name\n");
mutex_lock(&mtd_table_mutex);
len = sprintf(page, "dev: size erasesize name\n");
mtd_for_each_device(mtd) {
l = mtd_proc_info(page + len, mtd);
len += l;
if (len+begin > off+count)
goto done;
if (len+begin < off) {
begin += len;
len = 0;
seq_printf(m, "mtd%d: %8.8llx %8.8x \"%s\"\n",
mtd->index, (unsigned long long)mtd->size,
mtd->erasesize, mtd->name);
}
}
*eof = 1;
done:
mutex_unlock(&mtd_table_mutex);
if (off >= len+begin)
return 0;
*start = page + (off-begin);
return ((count < begin+len-off) ? count : begin+len-off);
}
static int mtd_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, mtd_proc_show, NULL);
}
static const struct file_operations mtd_proc_ops = {
.open = mtd_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_PROC_FS */
/*====================================================================*/
@ -783,8 +772,7 @@ static int __init init_mtd(void)
goto err_bdi3;
#ifdef CONFIG_PROC_FS
if ((proc_mtd = create_proc_entry( "mtd", 0, NULL )))
proc_mtd->read_proc = mtd_read_proc;
proc_mtd = proc_create("mtd", 0, NULL, &mtd_proc_ops);
#endif /* CONFIG_PROC_FS */
return 0;