[PATCH] fscache: replace open-coded pr_warn_once() with actual call

[Jason A. Donenfeld]

There's no reason to open code this here, so instead replace it with
pr_warn_once, which amounts to exactly the same thing.

Signed-off-by: Jason A. Donenfeld <ja...@zx2c4.com>
---
 fs/fscache/page.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 26af6fdf1538..dc8dce79fa8d 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -1173,14 +1173,9 @@ void fscache_mark_page_cached(struct fscache_retrieval 
*op, struct page *page)
        trace_fscache_page(cookie, page, fscache_page_cached);
 
        _debug("- mark %p{%lx}", page, page->index);
-       if (TestSetPageFsCache(page)) {
-               static bool once_only;
-               if (!once_only) {
-                       once_only = true;
-                       pr_warn("Cookie type %s marked page %lx multiple 
times\n",
-                               cookie->def->name, page->index);
-               }
-       }
+       if (TestSetPageFsCache(page))
+               pr_warn_once("Cookie type %s marked page %lx multiple times\n",
+                            cookie->def->name, page->index);
 
        if (cookie->def->mark_page_cached)
                cookie->def->mark_page_cached(cookie->netfs_data,
-- 
2.27.0