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Revert "vfs: fix freeze protection in mnt_want_write_file() for overlayfs"

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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@gmail.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2018-10-18 14:22:54 +02:00
parent e261faa2ec
commit f473bf9216
1 changed files with 3 additions and 4 deletions
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7
fs/namespace.c
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@ -446,10 +446,10 @@ int mnt_want_write_file_path(struct file *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 *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)