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Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 9f131f1cfde3..f2bb5ff0293d 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -41,6 +41,7 @@
#include <linux/delayacct.h>
#include <linux/psi.h>
#include <linux/ramfs.h>
+#include <linux/page_idle.h>
#include "internal.h"
#define CREATE_TRACE_POINTS
@@ -1648,6 +1649,9 @@ EXPORT_SYMBOL(find_lock_entry);
* * %FGP_FOR_MMAP - The caller wants to do its own locking dance if the
* page is already in cache. If the page was allocated, unlock it before
* returning so the caller can do the same dance.
+ * * %FGP_WRITE - The page will be written
+ * * %FGP_NOFS - __GFP_FS will get cleared in gfp mask
+ * * %FGP_NOWAIT - Don't get blocked by page lock
*
* If %FGP_LOCK or %FGP_CREAT are specified then the function may sleep even
* if the %GFP flags specified for %FGP_CREAT are atomic.
@@ -1689,6 +1693,11 @@ repeat:
if (fgp_flags & FGP_ACCESSED)
mark_page_accessed(page);
+ else if (fgp_flags & FGP_WRITE) {
+ /* Clear idle flag for buffer write */
+ if (page_is_idle(page))
+ clear_page_idle(page);
+ }
no_page:
if (!page && (fgp_flags & FGP_CREAT)) {