Re: [PATCH 19/20] elevate writer count for custom 'struct file'

From: Andrew Morton
Date: Tue Jun 27 2006 - 22:38:55 EST


On Tue, 27 Jun 2006 15:14:56 -0700
Dave Hansen <haveblue@xxxxxxxxxx> wrote:

> Some filesystems forego the vfs and may_open() and create their
> own 'struct file's. Any of these users which set the write flag
> on the file will cause an extra mnt_drop_write() on __fput(),
> thus dropping the reference count too low.
>
> These users tend to have artifical in-kernel vfsmounts which
> aren't really exposed to userspace and can't be remounted, but
> this patch is included for completeness and so that the warnings
> don't trip over these cases.

Does the fake_file in fs/block_dev.c need similar treatment?
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