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authorAlexey Dobriyan <adobriyan@gmail.com>2007-02-13 13:26:23 +0100
committerAndi Kleen <andi@basil.nowhere.org>2007-02-13 13:26:23 +0100
commit016d6f35803667ffbe3e7bba8b58a6b611fac998 (patch)
treed8d0d5fb40539015a2fe8021b886f2c6c597fb4b /arch/i386/kernel/apm.c
parentb0957f1a3a7687bfaf5b0bfe402b50985ea2f06b (diff)
downloadop-kernel-dev-016d6f35803667ffbe3e7bba8b58a6b611fac998.zip
op-kernel-dev-016d6f35803667ffbe3e7bba8b58a6b611fac998.tar.gz
[PATCH] i386: Convert /proc/apm to seqfile
Byte-to-byte identical /proc/apm here. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/kernel/apm.c')
-rw-r--r--arch/i386/kernel/apm.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index db99a89..f9ba0af 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -211,6 +211,7 @@
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/miscdevice.h>
#include <linux/apm_bios.h>
#include <linux/init.h>
@@ -1636,9 +1637,8 @@ static int do_open(struct inode * inode, struct file * filp)
return 0;
}
-static int apm_get_info(char *buf, char **start, off_t fpos, int length)
+static int proc_apm_show(struct seq_file *m, void *v)
{
- char * p;
unsigned short bx;
unsigned short cx;
unsigned short dx;
@@ -1650,8 +1650,6 @@ static int apm_get_info(char *buf, char **start, off_t fpos, int length)
int time_units = -1;
char *units = "?";
- p = buf;
-
if ((num_online_cpus() == 1) &&
!(error = apm_get_power_status(&bx, &cx, &dx))) {
ac_line_status = (bx >> 8) & 0xff;
@@ -1705,7 +1703,7 @@ static int apm_get_info(char *buf, char **start, off_t fpos, int length)
-1: Unknown
8) min = minutes; sec = seconds */
- p += sprintf(p, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
+ seq_printf(m, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
driver_version,
(apm_info.bios.version >> 8) & 0xff,
apm_info.bios.version & 0xff,
@@ -1716,10 +1714,22 @@ static int apm_get_info(char *buf, char **start, off_t fpos, int length)
percentage,
time_units,
units);
+ return 0;
+}
- return p - buf;
+static int proc_apm_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, proc_apm_show, NULL);
}
+static const struct file_operations apm_file_ops = {
+ .owner = THIS_MODULE,
+ .open = proc_apm_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int apm(void *unused)
{
unsigned short bx;
@@ -2341,9 +2351,9 @@ static int __init apm_init(void)
set_base(gdt[APM_DS >> 3],
__va((unsigned long)apm_info.bios.dseg << 4));
- apm_proc = create_proc_info_entry("apm", 0, NULL, apm_get_info);
+ apm_proc = create_proc_entry("apm", 0, NULL);
if (apm_proc)
- apm_proc->owner = THIS_MODULE;
+ apm_proc->proc_fops = &apm_file_ops;
kapmd_task = kthread_create(apm, NULL, "kapmd");
if (IS_ERR(kapmd_task)) {
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