From: Konstantin Khlebnikov Date: Sat, 5 Oct 2024 00:13:43 +0000 (-0700) Subject: block: add partition uuid into uevent as "PARTUUID" X-Git-Tag: v6.13-rc1~211^2~75 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=758737d86f8a2d74c0fa9f8b2523fa7fd1e0d0aa;p=thirdparty%2Fkernel%2Flinux.git block: add partition uuid into uevent as "PARTUUID" Both most common formats have uuid in addition to partition name: GPT: standard uuid xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx DOS: 4 byte disk signature and 1 byte partition xxxxxxxx-xx Tools from util-linux use the same notation for them. Signed-off-by: Konstantin Khlebnikov Reviewed-by: Kyle Fortin [dianders: rebased to modern kernels] Signed-off-by: Douglas Anderson Signed-off-by: Douglas Anderson Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20241004171340.v2.1.I938c91d10e454e841fdf5d64499a8ae8514dc004@changeid Signed-off-by: Jens Axboe --- diff --git a/block/partitions/core.c b/block/partitions/core.c index cdad05f976476..815ed33caa1b8 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -256,6 +256,8 @@ static int part_uevent(const struct device *dev, struct kobj_uevent_env *env) add_uevent_var(env, "PARTN=%u", bdev_partno(part)); if (part->bd_meta_info && part->bd_meta_info->volname[0]) add_uevent_var(env, "PARTNAME=%s", part->bd_meta_info->volname); + if (part->bd_meta_info && part->bd_meta_info->uuid[0]) + add_uevent_var(env, "PARTUUID=%s", part->bd_meta_info->uuid); return 0; }