This saves a lot of calls to compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/splice.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/fs/splice.c b/fs/splice.c
index 5dbce4dcc1a7..23ff9c303abc 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -47,26 +47,27 @@ static bool page_cache_pipe_buf_try_steal(struct pipe_inode_info *pipe,
struct pipe_buffer *buf)
{
struct page *page = buf->page;
+ struct folio *folio = page_folio(page);
struct address_space *mapping;
- lock_page(page);
+ folio_lock(folio);
- mapping = page_mapping(page);
+ mapping = folio_mapping(folio);
if (mapping) {
- WARN_ON(!PageUptodate(page));
+ WARN_ON(!folio_test_uptodate(folio));
/*
* At least for ext2 with nobh option, we need to wait on
- * writeback completing on this page, since we'll remove it
+ * writeback completing on this folio, since we'll remove it
* from the pagecache. Otherwise truncate wont wait on the
- * page, allowing the disk blocks to be reused by someone else
+ * folio, allowing the disk blocks to be reused by someone else
* before we actually wrote our data to them. fs corruption
* ensues.
*/
- wait_on_page_writeback(page);
+ folio_wait_writeback(folio);
- if (page_has_private(page) &&
- !try_to_release_page(page, GFP_KERNEL))
+ if (folio_has_private(folio) &&
+ !filemap_release_folio(folio, GFP_KERNEL))
goto out_unlock;
/*
@@ -80,11 +81,11 @@ static bool page_cache_pipe_buf_try_steal(struct pipe_inode_info *pipe,
}
/*
- * Raced with truncate or failed to remove page from current
+ * Raced with truncate or failed to remove folio from current
* address space, unlock and return failure.
*/
out_unlock:
- unlock_page(page);
+ folio_unlock(folio);
return false;
}
--
2.34.1
