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-rw-r--r--fs/seq_file.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 3714ae1d5e1c..84650ad3b1bf 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -673,15 +673,20 @@ void seq_puts(struct seq_file *m, const char *s)
}
EXPORT_SYMBOL(seq_puts);
-/*
+/**
* A helper routine for putting decimal numbers without rich format of printf().
* only 'unsigned long long' is supported.
- * This routine will put strlen(delimiter) + number into seq_file.
+ * @m: seq_file identifying the buffer to which data should be written
+ * @delimiter: a string which is printed before the number
+ * @num: the number
+ * @width: a minimum field width
+ *
+ * This routine will put strlen(delimiter) + number into seq_filed.
* This routine is very quick when you show lots of numbers.
* In usual cases, it will be better to use seq_printf(). It's easier to read.
*/
-void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
- unsigned long long num)
+void seq_put_decimal_ull_width(struct seq_file *m, const char *delimiter,
+ unsigned long long num, unsigned int width)
{
int len;
@@ -695,7 +700,10 @@ void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
memcpy(m->buf + m->count, delimiter, len);
m->count += len;
- if (m->count + 1 >= m->size)
+ if (!width)
+ width = 1;
+
+ if (m->count + width >= m->size)
goto overflow;
if (num < 10) {
@@ -703,7 +711,7 @@ void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
return;
}
- len = num_to_str(m->buf + m->count, m->size - m->count, num);
+ len = num_to_str(m->buf + m->count, m->size - m->count, num, width);
if (!len)
goto overflow;
@@ -713,6 +721,12 @@ void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
overflow:
seq_set_overflow(m);
}
+
+void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
+ unsigned long long num)
+{
+ return seq_put_decimal_ull_width(m, delimiter, num, 0);
+}
EXPORT_SYMBOL(seq_put_decimal_ull);
/**
@@ -788,7 +802,7 @@ void seq_put_decimal_ll(struct seq_file *m, const char *delimiter, long long num
return;
}
- len = num_to_str(m->buf + m->count, m->size - m->count, num);
+ len = num_to_str(m->buf + m->count, m->size - m->count, num, 0);
if (!len)
goto overflow;