[PATCH v3 5/6] hugetlbfs: convert hugetlb_delete_from_page_cache() to use folios

From: Sidhartha Kumar
Date: Thu Sep 08 2022 - 15:38:39 EST


Removes the last caller of delete_from_page_cache() by converting the
code to its folio equivalent.

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
---
fs/hugetlbfs/inode.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index d9e08c445e2f..38920702765e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -364,11 +364,11 @@ static int hugetlbfs_write_end(struct file *file, struct address_space *mapping,
return -EINVAL;
}

-static void hugetlb_delete_from_page_cache(struct page *page)
+static void hugetlb_delete_from_page_cache(struct folio *folio)
{
- ClearPageDirty(page);
- ClearPageUptodate(page);
- delete_from_page_cache(page);
+ folio_clear_dirty(folio);
+ folio_clear_uptodate(folio);
+ filemap_remove_folio(folio);
}

/*
@@ -562,8 +562,8 @@ static bool remove_inode_single_folio(struct hstate *h, struct inode *inode,
* map could fail. Correspondingly, the subpool and global
* reserve usage count can need to be adjusted.
*/
- VM_BUG_ON(HPageRestoreReserve(&folio->page));
- hugetlb_delete_from_page_cache(&folio->page);
+ VM_BUG_ON_FOLIO(folio_test_hugetlb_restore_reserve(folio), folio);
+ hugetlb_delete_from_page_cache(folio);
ret = true;
if (!truncate_op) {
if (unlikely(hugetlb_unreserve_pages(inode, index,
@@ -1174,7 +1174,7 @@ static int hugetlbfs_error_remove_page(struct address_space *mapping,
struct inode *inode = mapping->host;
pgoff_t index = page->index;

- hugetlb_delete_from_page_cache(page);
+ hugetlb_delete_from_page_cache(page_folio(page));
if (unlikely(hugetlb_unreserve_pages(inode, index, index + 1, 1)))
hugetlb_fix_reserve_counts(inode);

--
2.31.1