On Wed, Apr 14, 2021 at 10:33:38AM +0900, Naohiro Aota wrote:
> It also supports temporary magic ("!BHRfS_M") in zone #0. The mkfs.btrfs
> first writes the temporary superblock to the zone during the mkfs process.
> It will survive there until the zones are filled up and reset. So, we also
> need t
On Wed, Apr 14, 2021 at 03:47:08PM +0200, Karel Zak wrote:
> On Wed, Apr 14, 2021 at 10:33:38AM +0900, Naohiro Aota wrote:
> > +#define ASSERT(x) assert(x)
>
> Really? ;-)
>
> > +typedef uint64_t u64;
> > +typedef uint64_t sector_t;
> > +typedef uint8_t u8;
>
> I do not see a reason for u64 and
On Wed, Apr 14, 2021 at 10:33:38AM +0900, Naohiro Aota wrote:
> +#define ASSERT(x) assert(x)
Really? ;-)
> +typedef uint64_t u64;
> +typedef uint64_t sector_t;
> +typedef uint8_t u8;
I do not see a reason for u64 and u8 here.
> +
> +#ifdef HAVE_LINUX_BLKZONED_H
> +static int sb_write_pointer(in
On 14/04/2021 03:33, Naohiro Aota wrote:
> This commit adds zone-aware magics and probing functions for zoned btrfs.
>
> Superblock (and its copies) is the only data structure in btrfs with a
The superblock?
> fixed location on a device. Since we cannot overwrite in a sequential write
cannot do
This commit adds zone-aware magics and probing functions for zoned btrfs.
Superblock (and its copies) is the only data structure in btrfs with a
fixed location on a device. Since we cannot overwrite in a sequential write
required zone, we cannot place superblock in the zone.
Thus, zoned btrfs use
