linux-kernel - [PATCH 1/2] f2fs: remove folio_detach_private() in .invalidate_folio and .release

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Date:   Mon, 10 Apr 2023 10:24:17 +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 1/2] f2fs: remove folio_detach_private() in .invalidate_folio and .release_folio

We have maintain PagePrivate and page_private and page reference
w/ {set,clear}_page_private_*, it doesn't need to call
folio_detach_private() in the end of .invalidate_folio and
.release_folio, remove it and use f2fs_bug_on instead.

Signed-off-by: Chao Yu <chao@...nel.org>
---
 fs/f2fs/data.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 4946df6dd253..8b179b4bdc03 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3737,7 +3737,8 @@ void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length)
 			inode->i_ino == F2FS_COMPRESS_INO(sbi))
 		clear_page_private_data(&folio->page);
 
-	folio_detach_private(folio);
+	f2fs_bug_on(sbi, PagePrivate(&folio->page));
+	f2fs_bug_on(sbi, page_private(&folio->page));
 }
 
 bool f2fs_release_folio(struct folio *folio, gfp_t wait)
@@ -3759,7 +3760,9 @@ bool f2fs_release_folio(struct folio *folio, gfp_t wait)
 	clear_page_private_reference(&folio->page);
 	clear_page_private_gcing(&folio->page);
 
-	folio_detach_private(folio);
+	f2fs_bug_on(sbi, PagePrivate(&folio->page));
+	f2fs_bug_on(sbi, page_private(&folio->page));
+
 	return true;
 }
 
-- 
2.25.1