linux-kernel - [PATCH] f2fs: avoid stale fi->gdirty

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Message-Id: <20171013021411.25850-1-jaegeuk@kernel.org>
Date:   Thu, 12 Oct 2017 19:14:11 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH] f2fs: avoid stale fi->gdirty_list pointer

When doing fault injection test, f2fs_evict_inode() didn't remove gdirty_list
which incurs a kernel panic due to wrong pointer access.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index f6db9d533ca4..1ae5396c97d6 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -535,6 +535,8 @@ void f2fs_evict_inode(struct inode *inode)
 
 	if (!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))
 		f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
+	else
+		f2fs_inode_synced(inode);
 
 	/* ino == 0, if f2fs_new_inode() was failed t*/
 	if (inode->i_ino)
-- 
2.14.0.rc1.383.gd1ce394fe2-goog