[PATCH 6.1.y 1/2] f2fs: fix to call clear_page_private_reference in .{release,invalid}_folio

[Sasha Levin <sashal@kernel.org>]

From: Chao Yu <chao@kernel.org>

[ Upstream commit 6779b5db90c5b925293f7ccc5ed5336c5b24ed50 ]

b763f3bedc2d ("f2fs: restructure f2fs page.private layout") missed
to call clear_page_private_reference() in .{release,invalid}_folio,
fix it, though it's not a big deal since folio_detach_private() was
called to clear all privae info and reference count in the page.

BTW, remove page_private_reference() definition as it never be used.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Stable-dep-of: 77de19b6867f ("f2fs: fix to avoid out-of-boundary access in dnode page")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/data.c | 2 ++
 fs/f2fs/f2fs.h | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index dc8f283f210c..2b018d365b91 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3729,6 +3729,7 @@ void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length)
 		}
 	}
 
+	clear_page_private_reference(&folio->page);
 	clear_page_private_gcing(&folio->page);
 
 	if (test_opt(sbi, COMPRESS_CACHE) &&
@@ -3754,6 +3755,7 @@ bool f2fs_release_folio(struct folio *folio, gfp_t wait)
 			clear_page_private_data(&folio->page);
 	}
 
+	clear_page_private_reference(&folio->page);
 	clear_page_private_gcing(&folio->page);
 
 	folio_detach_private(folio);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 1ad9669666e8..ad7bc58ce0a4 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1428,7 +1428,6 @@ static inline void clear_page_private_##name(struct page *page) \
 }
 
 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
-PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
-- 
2.50.1