On 9/22/22 02:27, Mike Snitzer wrote:
> On Tue, Sep 20 2022 at 5:11P -0400,
> Pankaj Raghav wrote:
>
>> - Background and Motivation:
>>
>> The zone storage implementation in Linux, introduced since v4.10, first
>> targetted SMR drives which have a power of 2 (po2) zone size alignment
>> requirem
>> +/*
>> + * This target works on the complete zoned device. Partial mapping is not
>> + * supported.
>> + * Construct a zoned po2 logical device:
>> + */
>> +static int dm_po2z_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>> +{
>> +struct dm_po2z_target *dmh = NULL;
>> +int
On Tue, Sep 20 2022 at 5:11P -0400,
Pankaj Raghav wrote:
> - Background and Motivation:
>
> The zone storage implementation in Linux, introduced since v4.10, first
> targetted SMR drives which have a power of 2 (po2) zone size alignment
> requirement. The po2 zone size was further imposed impli
On Tue, Sep 20 2022 at 5:11P -0400,
Pankaj Raghav wrote:
> Only zoned devices with power-of-2(po2) number of sectors per zone(zone
> size) were supported in linux but now non power-of-2(npo2) zone sizes
> support has been added to the block layer.
>
> Filesystems such as F2FS and btrfs have sup
On Fri, Sep 16, 2022 at 02:02:31PM -0700, Sarthak Kukreti wrote:
> On Fri, Sep 16, 2022 at 4:56 AM Brian Foster wrote:
> >
> > On Thu, Sep 15, 2022 at 09:48:22AM -0700, Sarthak Kukreti wrote:
> > > From: Sarthak Kukreti
> > >
> > > FALLOC_FL_PROVISION is a new fallocate() allocation mode that
> >
On Wed, Sep 21 2022 at 1:54P -0400,
Sarthak Kukreti wrote:
> On Tue, Sep 20, 2022 at 12:49 AM Christoph Hellwig wrote:
> >
> > On Thu, Sep 15, 2022 at 09:48:22AM -0700, Sarthak Kukreti wrote:
> > > From: Sarthak Kukreti
> > >
> > > FALLOC_FL_PROVISION is a new fallocate() allocation mode that
On Tue, Sep 20 2022 at 5:48P -0400,
Daniil Lunev wrote:
> > There is no such thing as WRITE UNAVAILABLE in NVMe.
> Apologize, that is WRITE UNCORRECTABLE. Chapter 3.2.7 of
> NVM Express NVM Command Set Specification 1.0b
>
> > That being siad you still haven't actually explained what problem
>
On Tue, Sep 20, 2022 at 01:52:38PM -0400, Mikulas Patocka wrote:
> Hi
>
> Here I'm sending second version of the brd discard patches.
That is quite interesting.
btw, something out of topic, I once had some preliminary attempt
to add DAX support to brd since brd works as ramdisk and brd-dax
could
On Tue, Sep 20, 2022 at 12:49 AM Christoph Hellwig wrote:
>
> On Thu, Sep 15, 2022 at 09:48:22AM -0700, Sarthak Kukreti wrote:
> > From: Sarthak Kukreti
> >
> > FALLOC_FL_PROVISION is a new fallocate() allocation mode that
> > sends a hint to (supported) thinly provisioned block devices to
> > al
> There is no such thing as WRITE UNAVAILABLE in NVMe.
Apologize, that is WRITE UNCORRECTABLE. Chapter 3.2.7 of
NVM Express NVM Command Set Specification 1.0b
> That being siad you still haven't actually explained what problem
> you're even trying to solve.
The specific problem is the following:
> So bloody punich the vendors for it. Unlike most of the Linux community
> your actually have purchasing power and you'd help everyone by making
> use of that instead adding hacks to upstream.
Hi Cristoph,
I just want to note that the primitive this patchset introduces would not
map
to WRITE ZER
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