linux-kernel - [PATCH] f2fs: fix to call clear_page_private_reference in .{release,invalid}

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Message-Id: <20221221121345.14353-1-chao@kernel.org>
Date:   Wed, 21 Dec 2022 20:13:45 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <chao@...nel.org>
Subject: [PATCH] f2fs: fix to call clear_page_private_reference in .{release,invalid}_folio

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@...nel.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 b1ec0fbf1c8f..53d8945df2c1 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3696,6 +3696,7 @@ 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) &&
@@ -3721,6 +3722,7 @@ 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 9da26d4ec017..049d4fa0b59e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1453,7 +1453,6 @@ 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(dummy, DUMMY_WRITE);
-- 
2.36.1