Convert the passed page to a folio and operate on that.
Replaces four calls to compound_head() with one.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/hostfs/hostfs_kern.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 8bf2dc1f9c01..42b70780282d 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -478,17 +478,18 @@ static int hostfs_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
+ struct folio *folio = page_folio(page);
struct inode *inode = mapping->host;
void *buffer;
- unsigned from = pos & (PAGE_SIZE - 1);
+ size_t from = offset_in_folio(folio, pos);
int err;
- buffer = kmap_local_page(page);
- err = write_file(FILE_HOSTFS_I(file)->fd, &pos, buffer + from, copied);
+ buffer = kmap_local_folio(folio, from);
+ err = write_file(FILE_HOSTFS_I(file)->fd, &pos, buffer, copied);
kunmap_local(buffer);
- if (!PageUptodate(page) && err == PAGE_SIZE)
- SetPageUptodate(page);
+ if (!folio_test_uptodate(folio) && err == folio_size(folio))
+ folio_mark_uptodate(folio);
/*
* If err > 0, write_file has added err to pos, so we are comparing
@@ -496,8 +497,8 @@ static int hostfs_write_end(struct file *file, struct address_space *mapping,
*/
if (err > 0 && (pos > inode->i_size))
inode->i_size = pos;
- unlock_page(page);
- put_page(page);
+ folio_unlock(folio);
+ folio_put(folio);
return err;
}
--
2.43.0
