Commit 447d9bd8 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by David Woodhouse
Browse files

mtd: convert to seq_file interface 



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

Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Acked-by: default avatarMike Frysinger <vapier@gentoo.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent c5d8c0ca

drivers/mtd/mtdcore.c

+19 −31
Original line number Diff line number Diff line
@@ -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;