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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2015-11-06 16:32:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 17:50:42 -0800
commit25c6bb76eafe37c8963ae58a6a1bcf4069caeedb (patch)
tree9309e318e7dcfe60b40ea8033af4ff8e75948ded /fs/seq_file.c
parent8b91a318e422a0201a7bd7ac2626eecec6b27ae1 (diff)
downloadlinux-stericsson-25c6bb76eafe37c8963ae58a6a1bcf4069caeedb.tar.gz
seq_file: reuse string_escape_str()
strint_escape_str() escapes input string by given criteria. In case of seq_escape() the criteria is to convert some characters to their octal representation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/seq_file.c')
-rw-r--r--fs/seq_file.c25
1 files changed, 6 insertions, 19 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c
index ad034fb49f30..00bbe2bfc634 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -13,6 +13,7 @@
#include <linux/cred.h>
#include <linux/mm.h>
#include <linux/printk.h>
+#include <linux/string_helpers.h>
#include <asm/uaccess.h>
#include <asm/page.h>
@@ -377,26 +378,12 @@ EXPORT_SYMBOL(seq_release);
*/
void seq_escape(struct seq_file *m, const char *s, const char *esc)
{
- char *end = m->buf + m->size;
- char *p;
- char c;
+ char *buf;
+ size_t size = seq_get_buf(m, &buf);
+ int ret;
- for (p = m->buf + m->count; (c = *s) != '\0' && p < end; s++) {
- if (!strchr(esc, c)) {
- *p++ = c;
- continue;
- }
- if (p + 3 < end) {
- *p++ = '\\';
- *p++ = '0' + ((c & 0300) >> 6);
- *p++ = '0' + ((c & 070) >> 3);
- *p++ = '0' + (c & 07);
- continue;
- }
- seq_set_overflow(m);
- return;
- }
- m->count = p - m->buf;
+ ret = string_escape_str(s, buf, size, ESCAPE_OCTAL, esc);
+ seq_commit(m, ret < size ? ret : -1);
}
EXPORT_SYMBOL(seq_escape);