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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2015-02-12 15:01:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 18:54:12 -0800
commitedc924e023ae2022fc29f1246e115c610c9abf38 (patch)
tree09417a3d57aa78bc11ae8a35d2aca4b0c627db1c
parent198d1597cc5a12d04af18b69338a5b1d66ee7020 (diff)
fs/proc/array.c: convert to use string_escape_str()
Instead of custom approach let's use string_escape_str() to escape a given string (task_name in this case). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/proc/array.c34
1 files changed, 7 insertions, 27 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index bd117d065b82..a3ccf4c4ce70 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -81,6 +81,7 @@
#include <linux/pid_namespace.h>
#include <linux/ptrace.h>
#include <linux/tracehook.h>
+#include <linux/string_helpers.h>
#include <linux/user_namespace.h>
#include <asm/pgtable.h>
@@ -89,39 +90,18 @@
static inline void task_name(struct seq_file *m, struct task_struct *p)
{
- int i;
- char *buf, *end;
- char *name;
+ char *buf;
char tcomm[sizeof(p->comm)];
get_task_comm(tcomm, p);
seq_puts(m, "Name:\t");
- end = m->buf + m->size;
buf = m->buf + m->count;
- name = tcomm;
- i = sizeof(tcomm);
- while (i && (buf < end)) {
- unsigned char c = *name;
- name++;
- i--;
- *buf = c;
- if (!c)
- break;
- if (c == '\\') {
- buf++;
- if (buf < end)
- *buf++ = c;
- continue;
- }
- if (c == '\n') {
- *buf++ = '\\';
- if (buf < end)
- *buf++ = 'n';
- continue;
- }
- buf++;
- }
+
+ /* Ignore error for now */
+ string_escape_str(tcomm, &buf, m->size - m->count,
+ ESCAPE_SPACE | ESCAPE_SPECIAL, "\n\\");
+
m->count = buf - m->buf;
seq_putc(m, '\n');
}