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Diffstat (limited to 'arch/arm/mm/alignment.c')
-rw-r--r--arch/arm/mm/alignment.c77
1 files changed, 38 insertions, 39 deletions
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index edddd66faac6..6f98c358989a 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
@@ -94,36 +95,29 @@ static const char *usermode_action[] = {
"signal+warn"
};
-static int
-proc_alignment_read(char *page, char **start, off_t off, int count, int *eof,
- void *data)
+static int alignment_proc_show(struct seq_file *m, void *v)
{
- char *p = page;
- int len;
-
- p += sprintf(p, "User:\t\t%lu\n", ai_user);
- p += sprintf(p, "System:\t\t%lu\n", ai_sys);
- p += sprintf(p, "Skipped:\t%lu\n", ai_skipped);
- p += sprintf(p, "Half:\t\t%lu\n", ai_half);
- p += sprintf(p, "Word:\t\t%lu\n", ai_word);
+ seq_printf(m, "User:\t\t%lu\n", ai_user);
+ seq_printf(m, "System:\t\t%lu\n", ai_sys);
+ seq_printf(m, "Skipped:\t%lu\n", ai_skipped);
+ seq_printf(m, "Half:\t\t%lu\n", ai_half);
+ seq_printf(m, "Word:\t\t%lu\n", ai_word);
if (cpu_architecture() >= CPU_ARCH_ARMv5TE)
- p += sprintf(p, "DWord:\t\t%lu\n", ai_dword);
- p += sprintf(p, "Multi:\t\t%lu\n", ai_multi);
- p += sprintf(p, "User faults:\t%i (%s)\n", ai_usermode,
+ seq_printf(m, "DWord:\t\t%lu\n", ai_dword);
+ seq_printf(m, "Multi:\t\t%lu\n", ai_multi);
+ seq_printf(m, "User faults:\t%i (%s)\n", ai_usermode,
usermode_action[ai_usermode]);
- len = (p - page) - off;
- if (len < 0)
- len = 0;
-
- *eof = (len <= count) ? 1 : 0;
- *start = page + off;
+ return 0;
+}
- return len;
+static int alignment_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, alignment_proc_show, NULL);
}
-static int proc_alignment_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static ssize_t alignment_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
{
char mode;
@@ -136,6 +130,13 @@ static int proc_alignment_write(struct file *file, const char __user *buffer,
return count;
}
+static const struct file_operations alignment_proc_fops = {
+ .open = alignment_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = alignment_proc_write,
+};
#endif /* CONFIG_PROC_FS */
union offset_union {
@@ -166,15 +167,15 @@ union offset_union {
THUMB( "1: "ins" %1, [%2]\n" ) \
THUMB( " add %2, %2, #1\n" ) \
"2:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"3: mov %0, #1\n" \
" b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 3b\n" \
- " .previous\n" \
+ " .popsection\n" \
: "=r" (err), "=&r" (val), "=r" (addr) \
: "0" (err), "2" (addr))
@@ -226,16 +227,16 @@ union offset_union {
" mov %1, %1, "NEXT_BYTE"\n" \
"2: "ins" %1, [%2]\n" \
"3:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"4: mov %0, #1\n" \
" b 3b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 4b\n" \
" .long 2b, 4b\n" \
- " .previous\n" \
+ " .popsection\n" \
: "=r" (err), "=&r" (v), "=&r" (a) \
: "0" (err), "1" (v), "2" (a)); \
if (err) \
@@ -266,18 +267,18 @@ union offset_union {
" mov %1, %1, "NEXT_BYTE"\n" \
"4: "ins" %1, [%2]\n" \
"5:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"6: mov %0, #1\n" \
" b 5b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 6b\n" \
" .long 2b, 6b\n" \
" .long 3b, 6b\n" \
" .long 4b, 6b\n" \
- " .previous\n" \
+ " .popsection\n" \
: "=r" (err), "=&r" (v), "=&r" (a) \
: "0" (err), "1" (v), "2" (a)); \
if (err) \
@@ -901,12 +902,10 @@ static int __init alignment_init(void)
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *res;
- res = create_proc_entry("cpu/alignment", S_IWUSR | S_IRUGO, NULL);
+ res = proc_create("cpu/alignment", S_IWUSR | S_IRUGO, NULL,
+ &alignment_proc_fops);
if (!res)
return -ENOMEM;
-
- res->read_proc = proc_alignment_read;
- res->write_proc = proc_alignment_write;
#endif
/*