From: Chao Yu via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>
To: jaegeuk@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH v2 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read()
Date: Tue, 13 May 2025 11:19:07 +0800 [thread overview]
Message-ID: <20250513031907.2876275-1-chao@kernel.org> (raw)
mapping_read_folio_gfp() will return a folio, it should always be
uptodate, let's check folio uptodate status to detect any potenial
bug.
Signed-off-by: Chao Yu <chao@kernel.org>
---
v2:
- just add f2fs_bug_on(), get rid of error handling.
fs/f2fs/super.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0ee783224953..8c77a625427c 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2973,6 +2973,12 @@ static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
goto repeat;
}
+ /*
+ * should never happen, just leave f2fs_bug_on() here to catch
+ * any potential bug.
+ */
+ f2fs_bug_on(sbi, !folio_test_uptodate(folio));
+
memcpy_from_folio(data, folio, offset, tocopy);
f2fs_folio_put(folio, true);
--
2.49.0
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WARNING: multiple messages have this Message-ID (diff)
From: Chao Yu <chao@kernel.org>
To: jaegeuk@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org, Chao Yu <chao@kernel.org>
Subject: [PATCH v2 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read()
Date: Tue, 13 May 2025 11:19:07 +0800 [thread overview]
Message-ID: <20250513031907.2876275-1-chao@kernel.org> (raw)
mapping_read_folio_gfp() will return a folio, it should always be
uptodate, let's check folio uptodate status to detect any potenial
bug.
Signed-off-by: Chao Yu <chao@kernel.org>
---
v2:
- just add f2fs_bug_on(), get rid of error handling.
fs/f2fs/super.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0ee783224953..8c77a625427c 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2973,6 +2973,12 @@ static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
goto repeat;
}
+ /*
+ * should never happen, just leave f2fs_bug_on() here to catch
+ * any potential bug.
+ */
+ f2fs_bug_on(sbi, !folio_test_uptodate(folio));
+
memcpy_from_folio(data, folio, offset, tocopy);
f2fs_folio_put(folio, true);
--
2.49.0
next reply other threads:[~2025-05-13 3:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-13 3:19 Chao Yu via Linux-f2fs-devel [this message]
2025-05-13 3:19 ` [PATCH v2 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read() Chao Yu
2025-05-13 17:33 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2025-05-13 17:33 ` Jaegeuk Kim
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