diff options
| author | Matthew Wilcox (Oracle) <[email protected]> | 2020-10-15 20:05:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-10-16 11:11:15 -0700 |
| commit | 8854a6a7248f6c372f1aa2a47b58027d3ba600c2 (patch) | |
| tree | c3af0f189364a14bfdece6513dd8dda0ba8e9783 | |
| parent | fc3a5ac52827960ca1e17ba243ff4ba29fcc057a (diff) | |
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.
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: SeongJae Park <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Cc: Huang Ying <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/page-writeback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 358d6f28c627..7709f0e223f5 100644 --- a/mm/page-writeback.c +++ b/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); } |