linux-kernel - Re: [f2fs-dev] [PATCH v3] f2fs: retry to update the inode page given EIO

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Message-ID: <Y78F6KrTNFi0xBa/@google.com>
Date:   Wed, 11 Jan 2023 10:54:32 -0800
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     stable@...r.kernel.org
Subject: Re: [f2fs-dev] [PATCH v3] f2fs: retry to update the inode page given
 EIO

In f2fs_update_inode_page, f2fs_get_node_page handles EIO along with
f2fs_handle_page_eio that stops checkpoint, if the disk couldn't be recovered.
As a result, we don't need to stop checkpoint right away given single EIO.

Cc: stable@...r.kernel.org
Signed-off-by: Randall Huang <huangrandall@...gle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---

 Change log from v2:
  - set EIO to cover the case of data corruption given by buggy UFS driver

 fs/f2fs/inode.c | 2 +-
 fs/f2fs/node.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index ff6cf66ed46b..2ed7a621fdf1 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -719,7 +719,7 @@ void f2fs_update_inode_page(struct inode *inode)
 	if (IS_ERR(node_page)) {
 		int err = PTR_ERR(node_page);
 
-		if (err == -ENOMEM) {
+		if (err == -ENOMEM || (err == -EIO && !f2fs_cp_error(sbi))) {
 			cond_resched();
 			goto retry;
 		} else if (err != -ENOENT) {
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 558b318f7316..1629dc300c61 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1455,7 +1455,7 @@ static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid,
 			  ofs_of_node(page), cpver_of_node(page),
 			  next_blkaddr_of_node(page));
 	set_sbi_flag(sbi, SBI_NEED_FSCK);
-	err = -EINVAL;
+	err = -EIO;
 out_err:
 	ClearPageUptodate(page);
 out_put_err:
-- 
2.39.0.314.g84b9a713c41-goog