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Message-Id: <20181018175422.226233899@linuxfoundation.org>
Date: Thu, 18 Oct 2018 19:54:46 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Amir Goldstein <amir73il@...il.com>,
Miklos Szeredi <mszeredi@...hat.com>,
Christoph Hellwig <hch@....de>,
Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 31/41] Revert "vfs: fix freeze protection in mnt_want_write_file() for overlayfs"
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
This reverts commit 4f4374a9bd25b333971e6f2656b642d29e2efe7b which was
commit a6795a585929d94ca3e931bc8518f8deb8bbe627 upstream.
Turns out this causes problems and was to fix a patch only in the 4.19
and newer tree.
Reported-by: Amir Goldstein <amir73il@...il.com>
Cc: Miklos Szeredi <mszeredi@...hat.com>
Cc: Christoph Hellwig <hch@....de>
Cc: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
fs/namespace.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -446,10 +446,10 @@ int mnt_want_write_file_path(struct file
{
int ret;
- sb_start_write(file_inode(file)->i_sb);
+ sb_start_write(file->f_path.mnt->mnt_sb);
ret = __mnt_want_write_file(file);
if (ret)
- sb_end_write(file_inode(file)->i_sb);
+ sb_end_write(file->f_path.mnt->mnt_sb);
return ret;
}
@@ -540,8 +540,7 @@ void __mnt_drop_write_file(struct file *
void mnt_drop_write_file_path(struct file *file)
{
- __mnt_drop_write_file(file);
- sb_end_write(file_inode(file)->i_sb);
+ mnt_drop_write(file->f_path.mnt);
}
void mnt_drop_write_file(struct file *file)
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