Remove four hidden calls to compound_head(). Also exit early if the
filesystem block size is >= PAGE_SIZE instead of just equal to PAGE_SIZE.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
mm/truncate.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/mm/truncate.c b/mm/truncate.c
index 725b150e47ac..25776e1915b8 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -781,31 +781,29 @@ void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
{
int bsize = i_blocksize(inode);
loff_t rounded_from;
- struct page *page;
- pgoff_t index;
+ struct folio *folio;
WARN_ON(to > inode->i_size);
- if (from >= to || bsize == PAGE_SIZE)
+ if (from >= to || bsize >= PAGE_SIZE)
return;
/* Page straddling @from will not have any hole block created? */
rounded_from = round_up(from, bsize);
if (to <= rounded_from || !(rounded_from & (PAGE_SIZE - 1)))
return;
- index = from >> PAGE_SHIFT;
- page = find_lock_page(inode->i_mapping, index);
- /* Page not cached? Nothing to do */
- if (!page)
+ folio = filemap_lock_folio(inode->i_mapping, from / PAGE_SIZE);
+ /* Folio not cached? Nothing to do */
+ if (IS_ERR(folio))
return;
/*
- * See clear_page_dirty_for_io() for details why set_page_dirty()
+ * See folio_clear_dirty_for_io() for details why folio_mark_dirty()
* is needed.
*/
- if (page_mkclean(page))
- set_page_dirty(page);
- unlock_page(page);
- put_page(page);
+ if (folio_mkclean(folio))
+ folio_mark_dirty(folio);
+ folio_unlock(folio);
+ folio_put(folio);
}
EXPORT_SYMBOL(pagecache_isize_extended);
--
2.43.0
