lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 4 Jun 2013 13:29:22 -0400
From:	Theodore Ts'o <>
To:	Jan Kara <>
Subject: Re: [PATCH 17/26] ext4: Use transaction reservation for extent
 conversion in ext4_end_io

On Fri, May 31, 2013 at 11:42:50AM +0200, Jan Kara wrote:
> Later we would like to clear PageWriteback bit only after extent conversion
> from unwritten to written extents is performed. However it is not possible
> to start a transaction after PageWriteback is set because that violates
> lock ordering (and is easy to deadlock). So we have to reserve a transaction
> before locking pages and sending them for IO and later we use the transaction
> for extent conversion from ext4_end_io().
> Reviewed-by: Zheng Liu <>
> Signed-off-by: Jan Kara <>

Thanks, applied.

					- Ted
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists