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-rw-r--r--arch/arm/kernel/atags_proc.c28
-rw-r--r--arch/arm/kernel/swp_emulate.c43
2 files changed, 29 insertions, 42 deletions
diff --git a/arch/arm/kernel/atags_proc.c b/arch/arm/kernel/atags_proc.c
index 42a1a1415fa6..c7ff8073416f 100644
--- a/arch/arm/kernel/atags_proc.c
+++ b/arch/arm/kernel/atags_proc.c
@@ -9,24 +9,18 @@ struct buffer {
char data[];
};
-static int
-read_buffer(char* page, char** start, off_t off, int count,
- int* eof, void* data)
+static ssize_t atags_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
{
- struct buffer *buffer = (struct buffer *)data;
-
- if (off >= buffer->size) {
- *eof = 1;
- return 0;
- }
-
- count = min((int) (buffer->size - off), count);
-
- memcpy(page, &buffer->data[off], count);
-
- return count;
+ struct buffer *b = PDE_DATA(file_inode(file));
+ return simple_read_from_buffer(buf, count, ppos, b->data, b->size);
}
+static const struct file_operations atags_fops = {
+ .read = atags_read,
+ .llseek = default_llseek,
+};
+
#define BOOT_PARAMS_SIZE 1536
static char __initdata atags_copy[BOOT_PARAMS_SIZE];
@@ -66,9 +60,7 @@ static int __init init_atags_procfs(void)
b->size = size;
memcpy(b->data, atags_copy, size);
- tags_entry = create_proc_read_entry("atags", 0400,
- NULL, read_buffer, b);
-
+ tags_entry = proc_create_data("atags", 0400, NULL, &atags_fops, b);
if (!tags_entry)
goto nomem;
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c
index ab1017bd1667..087fc321e9e5 100644
--- a/arch/arm/kernel/swp_emulate.c
+++ b/arch/arm/kernel/swp_emulate.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/perf_event.h>
@@ -79,27 +80,27 @@ static unsigned long abtcounter;
static pid_t previous_pid;
#ifdef CONFIG_PROC_FS
-static int proc_read_status(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int proc_status_show(struct seq_file *m, void *v)
{
- char *p = page;
- int len;
-
- p += sprintf(p, "Emulated SWP:\t\t%lu\n", swpcounter);
- p += sprintf(p, "Emulated SWPB:\t\t%lu\n", swpbcounter);
- p += sprintf(p, "Aborted SWP{B}:\t\t%lu\n", abtcounter);
+ seq_printf(m, "Emulated SWP:\t\t%lu\n", swpcounter);
+ seq_printf(m, "Emulated SWPB:\t\t%lu\n", swpbcounter);
+ seq_printf(m, "Aborted SWP{B}:\t\t%lu\n", abtcounter);
if (previous_pid != 0)
- p += sprintf(p, "Last process:\t\t%d\n", previous_pid);
-
- len = (p - page) - off;
- if (len < 0)
- len = 0;
-
- *eof = (len <= count) ? 1 : 0;
- *start = page + off;
+ seq_printf(m, "Last process:\t\t%d\n", previous_pid);
+ return 0;
+}
- return len;
+static int proc_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, proc_status_show, PDE_DATA(inode));
}
+
+static const struct file_operations proc_status_fops = {
+ .open = proc_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
#endif
/*
@@ -266,14 +267,8 @@ static struct undef_hook swp_hook = {
static int __init swp_emulation_init(void)
{
#ifdef CONFIG_PROC_FS
- struct proc_dir_entry *res;
-
- res = create_proc_entry("cpu/swp_emulation", S_IRUGO, NULL);
-
- if (!res)
+ if (!proc_create("cpu/swp_emulation", S_IRUGO, NULL, &proc_status_fops))
return -ENOMEM;
-
- res->read_proc = proc_read_status;
#endif /* CONFIG_PROC_FS */
printk(KERN_NOTICE "Registering SWP/SWPB emulation handler\n");