jbd2: Use pr_notice_ratelimited() in journal_alloc_journal_head()
We had an open-coded version of printk_ratelimited(); use the provided
abstraction to make the code cleaner and easier to understand.
Based on a similar patch for fs/jbd from Namhyung Kim <namhyung@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index f837ba9..06dfd77 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -43,6 +43,7 @@
#include <linux/vmalloc.h>
#include <linux/backing-dev.h>
#include <linux/bitops.h>
+#include <linux/ratelimit.h>
#define CREATE_TRACE_POINTS
#include <trace/events/jbd2.h>
@@ -1982,7 +1983,6 @@
static struct journal_head *journal_alloc_journal_head(void)
{
struct journal_head *ret;
- static unsigned long last_warning;
#ifdef CONFIG_JBD2_DEBUG
atomic_inc(&nr_journal_heads);
@@ -1990,11 +1990,7 @@
ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
if (!ret) {
jbd_debug(1, "out of memory for journal_head\n");
- if (time_after(jiffies, last_warning + 5*HZ)) {
- printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
- __func__);
- last_warning = jiffies;
- }
+ pr_notice_ratelimited("ENOMEM in %s, retrying.\n", __func__);
while (!ret) {
yield();
ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);