Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc...

[linux-2.6-microblaze.git] / fs / mpage.c

diff --git a/fs/mpage.c b/fs/mpage.c
index 37bb77c..b7e7f57 100644 (file)
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fs/mpage.c
  *
@@ -468,6 +469,16 @@ static void clean_buffers(struct page *page, unsigned first_unmapped)
                try_to_free_buffers(page);
 }
 
+/*
+ * For situations where we want to clean all buffers attached to a page.
+ * We don't need to calculate how many buffers are attached to the page,
+ * we just need to specify a number larger than the maximum number of buffers.
+ */
+void clean_page_buffers(struct page *page)
+{
+       clean_buffers(page, ~0U);
+}
+
 static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
                      void *data)
 {
@@ -605,10 +616,8 @@ alloc_new:
        if (bio == NULL) {
                if (first_unmapped == blocks_per_page) {
                        if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
-                                                               page, wbc)) {
-                               clean_buffers(page, first_unmapped);
+                                                               page, wbc))
                                goto out;
-                       }
                }
                bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
                                BIO_MAX_PAGES, GFP_NOFS|__GFP_HIGH);