On 1/11/24 19:34, Damien Le Moal wrote:
On 1/12/24 12:29, Ming Lei wrote:
Just saw Bart's work on supporting non-power_of_2 zone len:
https://lore.kernel.org/linux-block/dc89c70e-4931-baaf-c450-6801c200c1d7@xxxxxxx/
Hmm ... weren't these patches developed by Pankaj Raghav from Samsung?
IMO FS support might be another topic, cause FS isn't the only user,
also without block layer support, the device isn't usable, not mention FS.
And if the FS requires a power of 2 zone size, that will create fragmentation of
the zoned device support: some devices will be usable with an FS, others not.
Not nice at all. That is *not* something that exists today, for any block
device. I am not very keen on going down such route.
F2FS supports zone sizes that are not a power of two. Recent Android
kernels have support for zone sizes that are not a power of two in the
block layer since UFS vendors requested support for this. We prefer to
have support in the upstream kernel for zone sizes that are not a power
of two because having to carry out-of-tree patches is painful.
Thanks,
Bart.
