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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2007-02-13 13:26:23 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-02-13 13:26:23 +0100 |
| commit | 016d6f35803667ffbe3e7bba8b58a6b611fac998 (patch) | |
| tree | d8d0d5fb40539015a2fe8021b886f2c6c597fb4b /arch/i386/kernel/apm.c | |
| parent | b0957f1a3a7687bfaf5b0bfe402b50985ea2f06b (diff) | |
| download | op-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.c | 26 |
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)) { |
