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112706
2018 Aug 13
2
Re: [PATCH v2 4/4] file: Zero for block devices on old kernels
On 08/03/2018 02:28 PM, Nir Soffer wrote:
> fallocate(FALLOC_FL_ZERO_RANGE) is supportd for block devices with
s/supportd/supported/
> modern kernel, but when it is not, we fall back to manual zeroing.
>
> For block device, try also to use ioctl(BLKZEROOUT) if offset and count
> are aligned to block device sector size.
>
> Here is an example run without this change on RHEL