From: Alessio Igor Bogani <abogani@texware.it>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Alexey Dobriyan <adobriyan@gmail.com>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Jan Blunck <jblunck@suse.de>
Subject: Re: [PATCH] USB: Remove BKL from remount() function in usbfs
Date: Wed, 31 Mar 2010 19:21:47 +0200 [thread overview]
Message-ID: <63a49ef41003311021x4f73609bj7b4275f67914b3db@mail.gmail.com> (raw)
In-Reply-To: <201003311654.38020.arnd@arndb.de>
Mr Bergmann,
2010/3/31 Arnd Bergmann <arnd@arndb.de>:
[...]
>> The function update_sb(), invoked by remount(), seems already well serialized
>> with &root->d_inode->i_mutex. Moreover don't seems there are others
>> super_operations functions in USB core for usbfs that should access to
>> super_block in a way which require BKL.
>
> There is a patch from Jan Blunck pending in the bkl-removal tree that pushes
> down the BKL into usbfs_fill_super. Can you confirm that this BKL usage does
> not interfere with the one you just removed, and that it can go the same way?
I can confirm that this certainly interfere: So please ignore my patch.
I'll elaborate a new patch when Blunck's works is merged.
Thanks!
Ciao,
Alessio
prev parent reply other threads:[~2010-03-31 17:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-31 14:09 Alessio Igor Bogani
2010-03-31 14:54 ` Arnd Bergmann
2010-03-31 17:21 ` Alessio Igor Bogani [this message]
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