[RFC v2 1/5] shmem: remove check for folio lock on writepage()

Luis Chamberlain
2023-02-23T02:44:34Z

Matthew notes we should not need to check the folio lock
on the writepage() callback so remove it. This sanity check
has been lingering since linux-history days. We remove this
as we tidy up the writepage() callback to make things a bit
clearer.

Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
mm/shmem.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index 28f3c699c8ce..b3ad619328bf 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1351,7 +1351,6 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
folio_clear_dirty(folio);
}

- BUG_ON(!folio_test_locked(folio));
mapping = folio->mapping;
index = folio->index;
inode = mapping->host;
--
2.39.1