| Message ID | 5abeb08ecb3fe5776b359d318641ef5078467070.1605007036.git.naohiro.aota@wdc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | btrfs: zoned block device support | expand |
On Tue, Nov 10, 2020 at 08:26:06PM +0900, Naohiro Aota wrote: > This patch introduces the ZONED incompat flag. The flag indicates that the > volume management will satisfy the constraints imposed by host-managed > zoned block devices. > > Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> > Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> > Reviewed-by: Anand Jain <anand.jain@oracle.com> > Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> > --- > fs/btrfs/sysfs.c | 2 ++ > include/uapi/linux/btrfs.h | 1 + > 2 files changed, 3 insertions(+) > > diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c > index 279d9262b676..828006020bbd 100644 > --- a/fs/btrfs/sysfs.c > +++ b/fs/btrfs/sysfs.c > @@ -263,6 +263,7 @@ BTRFS_FEAT_ATTR_INCOMPAT(no_holes, NO_HOLES); > BTRFS_FEAT_ATTR_INCOMPAT(metadata_uuid, METADATA_UUID); > BTRFS_FEAT_ATTR_COMPAT_RO(free_space_tree, FREE_SPACE_TREE); > BTRFS_FEAT_ATTR_INCOMPAT(raid1c34, RAID1C34); > +BTRFS_FEAT_ATTR_INCOMPAT(zoned, ZONED); > + BTRFS_FEAT_ATTR_PTR(zoned), As we're going to add zoned support incrementally, we can't advertise the support in sysfs until it's feature complete. Until then it's going to be under CONFIG_BTRFS_DEBUG. This has been folded to this patch and changelog updated.
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 279d9262b676..828006020bbd 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -263,6 +263,7 @@ BTRFS_FEAT_ATTR_INCOMPAT(no_holes, NO_HOLES); BTRFS_FEAT_ATTR_INCOMPAT(metadata_uuid, METADATA_UUID); BTRFS_FEAT_ATTR_COMPAT_RO(free_space_tree, FREE_SPACE_TREE); BTRFS_FEAT_ATTR_INCOMPAT(raid1c34, RAID1C34); +BTRFS_FEAT_ATTR_INCOMPAT(zoned, ZONED); static struct attribute *btrfs_supported_feature_attrs[] = { BTRFS_FEAT_ATTR_PTR(mixed_backref), @@ -278,6 +279,7 @@ static struct attribute *btrfs_supported_feature_attrs[] = { BTRFS_FEAT_ATTR_PTR(metadata_uuid), BTRFS_FEAT_ATTR_PTR(free_space_tree), BTRFS_FEAT_ATTR_PTR(raid1c34), + BTRFS_FEAT_ATTR_PTR(zoned), NULL }; diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 2c39d15a2beb..5df73001aad4 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -307,6 +307,7 @@ struct btrfs_ioctl_fs_info_args { #define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9) #define BTRFS_FEATURE_INCOMPAT_METADATA_UUID (1ULL << 10) #define BTRFS_FEATURE_INCOMPAT_RAID1C34 (1ULL << 11) +#define BTRFS_FEATURE_INCOMPAT_ZONED (1ULL << 12) struct btrfs_ioctl_feature_flags { __u64 compat_flags;