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path: root/drivers/ide/ide-cd.c
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Diffstat (limited to 'drivers/ide/ide-cd.c')
-rw-r--r--drivers/ide/ide-cd.c28
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index ad0ab0c..b79ca41 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/timer.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
@@ -1389,19 +1390,30 @@ static sector_t ide_cdrom_capacity(ide_drive_t *drive)
return capacity * sectors_per_frame;
}
-static int proc_idecd_read_capacity(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int idecd_capacity_proc_show(struct seq_file *m, void *v)
{
- ide_drive_t *drive = data;
- int len;
+ ide_drive_t *drive = m->private;
- len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive));
- PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
+ seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive));
+ return 0;
+}
+
+static int idecd_capacity_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, idecd_capacity_proc_show, PDE(inode)->data);
}
+static const struct file_operations idecd_capacity_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = idecd_capacity_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static ide_proc_entry_t idecd_proc[] = {
- { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
- { NULL, 0, NULL, NULL }
+ { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops },
+ {}
};
static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
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