The patch titled
Subject: mm/page-writeback: support tail pages in wait_for_stable_page
has been removed from the -mm tree. Its filename was
mm-page-writeback-support-tail-pages-in-wait_for_stable_page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm/page-writeback: support tail pages in wait_for_stable_page
page->mapping is undefined for tail pages, so operate exclusively on the
head page.
Link: https://lkml.kernel.org/r/20200908195539.25896-11-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Reviewed-by: SeongJae Park <sjpark@xxxxxxxxx>
Cc: Huang Ying <ying.huang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 1 +
1 file changed, 1 insertion(+)
--- a/mm/page-writeback.c~mm-page-writeback-support-tail-pages-in-wait_for_stable_page
+++ a/mm/page-writeback.c
@@ -2849,6 +2849,7 @@ EXPORT_SYMBOL_GPL(wait_on_page_writeback
*/
void wait_for_stable_page(struct page *page)
{
+ page = thp_head(page);
if (page->mapping->host->i_sb->s_iflags & SB_I_STABLE_WRITES)
wait_on_page_writeback(page);
}
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-update-the-documentation-for-vfree.patch
