aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mm/alignment.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm/alignment.c')
-rw-r--r--arch/arm/mm/alignment.c53
1 files changed, 26 insertions, 27 deletions
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index a2ab51fa73e..6f98c358989 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -17,6 +17,7 @@
17#include <linux/errno.h> 17#include <linux/errno.h>
18#include <linux/string.h> 18#include <linux/string.h>
19#include <linux/proc_fs.h> 19#include <linux/proc_fs.h>
20#include <linux/seq_file.h>
20#include <linux/init.h> 21#include <linux/init.h>
21#include <linux/sched.h> 22#include <linux/sched.h>
22#include <linux/uaccess.h> 23#include <linux/uaccess.h>
@@ -94,36 +95,29 @@ static const char *usermode_action[] = {
94 "signal+warn" 95 "signal+warn"
95}; 96};
96 97
97static int 98static int alignment_proc_show(struct seq_file *m, void *v)
98proc_alignment_read(char *page, char **start, off_t off, int count, int *eof,
99 void *data)
100{ 99{
101 char *p = page; 100 seq_printf(m, "User:\t\t%lu\n", ai_user);
102 int len; 101 seq_printf(m, "System:\t\t%lu\n", ai_sys);
103 102 seq_printf(m, "Skipped:\t%lu\n", ai_skipped);
104 p += sprintf(p, "User:\t\t%lu\n", ai_user); 103 seq_printf(m, "Half:\t\t%lu\n", ai_half);
105 p += sprintf(p, "System:\t\t%lu\n", ai_sys); 104 seq_printf(m, "Word:\t\t%lu\n", ai_word);
106 p += sprintf(p, "Skipped:\t%lu\n", ai_skipped);
107 p += sprintf(p, "Half:\t\t%lu\n", ai_half);
108 p += sprintf(p, "Word:\t\t%lu\n", ai_word);
109 if (cpu_architecture() >= CPU_ARCH_ARMv5TE) 105 if (cpu_architecture() >= CPU_ARCH_ARMv5TE)
110 p += sprintf(p, "DWord:\t\t%lu\n", ai_dword); 106 seq_printf(m, "DWord:\t\t%lu\n", ai_dword);
111 p += sprintf(p, "Multi:\t\t%lu\n", ai_multi); 107 seq_printf(m, "Multi:\t\t%lu\n", ai_multi);
112 p += sprintf(p, "User faults:\t%i (%s)\n", ai_usermode, 108 seq_printf(m, "User faults:\t%i (%s)\n", ai_usermode,
113 usermode_action[ai_usermode]); 109 usermode_action[ai_usermode]);
114 110
115 len = (p - page) - off; 111 return 0;
116 if (len < 0) 112}
117 len = 0;
118
119 *eof = (len <= count) ? 1 : 0;
120 *start = page + off;
121 113
122 return len; 114static int alignment_proc_open(struct inode *inode, struct file *file)
115{
116 return single_open(file, alignment_proc_show, NULL);
123} 117}
124 118
125static int proc_alignment_write(struct file *file, const char __user *buffer, 119static ssize_t alignment_proc_write(struct file *file, const char __user *buffer,
126 unsigned long count, void *data) 120 size_t count, loff_t *pos)
127{ 121{
128 char mode; 122 char mode;
129 123
@@ -136,6 +130,13 @@ static int proc_alignment_write(struct file *file, const char __user *buffer,
136 return count; 130 return count;
137} 131}
138 132
133static const struct file_operations alignment_proc_fops = {
134 .open = alignment_proc_open,
135 .read = seq_read,
136 .llseek = seq_lseek,
137 .release = single_release,
138 .write = alignment_proc_write,
139};
139#endif /* CONFIG_PROC_FS */ 140#endif /* CONFIG_PROC_FS */
140 141
141union offset_union { 142union offset_union {
@@ -901,12 +902,10 @@ static int __init alignment_init(void)
901#ifdef CONFIG_PROC_FS 902#ifdef CONFIG_PROC_FS
902 struct proc_dir_entry *res; 903 struct proc_dir_entry *res;
903 904
904 res = create_proc_entry("cpu/alignment", S_IWUSR | S_IRUGO, NULL); 905 res = proc_create("cpu/alignment", S_IWUSR | S_IRUGO, NULL,
906 &alignment_proc_fops);
905 if (!res) 907 if (!res)
906 return -ENOMEM; 908 return -ENOMEM;
907
908 res->read_proc = proc_alignment_read;
909 res->write_proc = proc_alignment_write;
910#endif 909#endif
911 910
912 /* 911 /*