diff --git a/fs/seq_file.c b/fs/seq_file.c
index abe27ec43176..04f09689cd6d 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -384,6 +384,17 @@ void seq_escape(struct seq_file *m, const char *s, const char *esc)
 }
 EXPORT_SYMBOL(seq_escape);
 
+void seq_escape_mem_ascii(struct seq_file *m, const char *src, size_t isz)
+{
+	char *buf;
+	size_t size = seq_get_buf(m, &buf);
+	int ret;
+
+	ret = string_escape_mem_ascii(src, isz, buf, size);
+	seq_commit(m, ret < size ? ret : -1);
+}
+EXPORT_SYMBOL(seq_escape_mem_ascii);
+
 void seq_vprintf(struct seq_file *m, const char *f, va_list args)
 {
 	int len;
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index a121982af0f5..5998e1f4ff06 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -127,6 +127,7 @@ void seq_put_hex_ll(struct seq_file *m, const char *delimiter,
 		    unsigned long long v, unsigned int width);
 
 void seq_escape(struct seq_file *m, const char *s, const char *esc);
+void seq_escape_mem_ascii(struct seq_file *m, const char *src, size_t isz);
 
 void seq_hex_dump(struct seq_file *m, const char *prefix_str, int prefix_type,
 		  int rowsize, int groupsize, const void *buf, size_t len,
diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index d23c5030901a..c28955132234 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -54,6 +54,9 @@ static inline int string_unescape_any_inplace(char *buf)
 int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
 		unsigned int flags, const char *only);
 
+int string_escape_mem_ascii(const char *src, size_t isz, char *dst,
+					size_t osz);
+
 static inline int string_escape_mem_any_np(const char *src, size_t isz,
 		char *dst, size_t osz, const char *only)
 {
diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 4403e1924f73..3a90a9e2b94a 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -540,6 +540,25 @@ int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
 }
 EXPORT_SYMBOL(string_escape_mem);
 
+int string_escape_mem_ascii(const char *src, size_t isz, char *dst,
+					size_t osz)
+{
+	char *p = dst;
+	char *end = p + osz;
+
+	while (isz--) {
+		unsigned char c = *src++;
+
+		if (!isprint(c) || !isascii(c) || c == '"' || c == '\\')
+			escape_hex(c, &p, end);
+		else
+			escape_passthrough(c, &p, end);
+	}
+
+	return p - dst;
+}
+EXPORT_SYMBOL(string_escape_mem_ascii);
+
 /*
  * Return an allocated string that has been escaped of special characters
  * and double quotes, making it safe to log in quotes.