fs: convert writepage_t callback to pass a folio
Patch series "Convert writepage_t to use a folio".
More folioisation. I split out the mpage work from everything else
because it completely dominated the patch, but some implementations I just
converted outright.
This patch (of 2):
We always write back an entire folio, but that's currently passed as the
head page. Convert all filesystems that use write_cache_pages() to expect
a folio instead of a page.
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
diff --git a/fs/mpage.c b/fs/mpage.c
index 55988ea..4890369 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -440,9 +440,10 @@ void clean_page_buffers(struct page *page)
clean_buffers(page, ~0U);
}
-static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
+static int __mpage_writepage(struct folio *folio, struct writeback_control *wbc,
void *data)
{
+ struct page *page = &folio->page;
struct mpage_data *mpd = data;
struct bio *bio = mpd->bio;
struct address_space *mapping = page->mapping;
