From: Heinz Mauelshagen
This new target is similar to the linear target except that it emulates
a smaller logical block size on devices with larger ones. It's main
purpose is to emulate 512 byte sectors on 4K native disks (i.e. 512e).
See Documentation/admin-guide/device-mapper/dm-ebs.rst for d
On Thu, Feb 13 2020 at 9:18am -0500,
Maksym Planeta wrote:
> The documentation [1] says that WQ_CPU_INTENSIVE is "meaningless" for
> unbound wq. I remove this flag from places where unbound queue is
> allocated. This is supposed to improve code readability.
>
> 1. https://www.kernel.org/doc/htm
On Thu, Feb 13, 2020 at 10:39:35AM +0300, Kirill Tkhai wrote:
> Support for new modifier of REQ_OP_WRITE_ZEROES command.
> This results in allocation extents in backing file instead
> of actual blocks zeroing.
>
> Signed-off-by: Kirill Tkhai
> Reviewed-by: Bob Liu
> Reviewed-by: Darrick J. Wong
I noticed this while running xfstests generic/347. The lockdep report is below:
[ 3742.062744] run fstests generic/347 at 2020-02-13 13:18:03
[ 3742.431761] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts:
acl,user_xattr,block_validity
[ 3743.696630] EXT4-fs (dm-5): mounted files
