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 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read()
Date: Mon, 12 May 2025 19:54:42 +0800 [thread overview]
Message-ID: <20250512115442.2640895-2-chao@kernel.org> (raw)
In-Reply-To: <20250512115442.2640895-1-chao@kernel.org>
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>
---
fs/f2fs/super.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0ee783224953..ea207a9edc10 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2973,6 +2973,17 @@ 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.
+ */
+ if (unlikely(!folio_test_uptodate(folio))) {
+ f2fs_folio_put(folio, true);
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
+ f2fs_bug_on(F2FS_SB(sb), 1);
+ return -EIO;
+ }
+
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 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read()
Date: Mon, 12 May 2025 19:54:42 +0800 [thread overview]
Message-ID: <20250512115442.2640895-2-chao@kernel.org> (raw)
In-Reply-To: <20250512115442.2640895-1-chao@kernel.org>
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>
---
fs/f2fs/super.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0ee783224953..ea207a9edc10 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2973,6 +2973,17 @@ 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.
+ */
+ if (unlikely(!folio_test_uptodate(folio))) {
+ f2fs_folio_put(folio, true);
+ set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
+ f2fs_bug_on(F2FS_SB(sb), 1);
+ return -EIO;
+ }
+
memcpy_from_folio(data, folio, offset, tocopy);
f2fs_folio_put(folio, true);
--
2.49.0
next prev parent reply other threads:[~2025-05-12 11:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-12 11:54 [f2fs-dev] [PATCH 1/2] f2fs: add f2fs_bug_on() to detect potential bug Chao Yu via Linux-f2fs-devel
2025-05-12 11:54 ` Chao Yu
2025-05-12 11:54 ` Chao Yu via Linux-f2fs-devel [this message]
2025-05-12 11:54 ` [PATCH 2/2] f2fs: add f2fs_bug_on() in f2fs_quota_read() Chao Yu
2025-05-12 15:27 ` [f2fs-dev] " Jaegeuk Kim via Linux-f2fs-devel
2025-05-12 15:27 ` Jaegeuk Kim
2025-05-13 2:45 ` [f2fs-dev] " Chao Yu via Linux-f2fs-devel
2025-05-13 2:45 ` Chao Yu
2025-05-12 15:26 ` [f2fs-dev] [PATCH 1/2] f2fs: add f2fs_bug_on() to detect potential bug Jaegeuk Kim via Linux-f2fs-devel
2025-05-12 15:26 ` Jaegeuk Kim
2025-05-13 2:44 ` [f2fs-dev] " Chao Yu via Linux-f2fs-devel
2025-05-13 2:44 ` Chao Yu
2025-05-14 15:40 ` [f2fs-dev] " patchwork-bot+f2fs--- via Linux-f2fs-devel
2025-05-14 15:40 ` patchwork-bot+f2fs
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