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| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2024-10-05 02:13:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-10-22 16:15:17 +0200 |
| commit | 758737d86f8a2d74c0fa9f8b2523fa7fd1e0d0aa (patch) | |
| tree | 2d2daba75e75ef2d9d40bcfbb9b17eb9623c8412 /block/partitions/core.c | |
| parent | block: move issue side time stamping to blk_account_io_start() (diff) | |
| download | linux-758737d86f8a2d74c0fa9f8b2523fa7fd1e0d0aa.tar.xz linux-758737d86f8a2d74c0fa9f8b2523fa7fd1e0d0aa.zip | |
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 <khlebnikov@yandex-team.ru>
Reviewed-by: Kyle Fortin <kyle.fortin@oracle.com>
[dianders: rebased to modern kernels]
Signed-off-by: Douglas Anderson <dianders@google.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20241004171340.v2.1.I938c91d10e454e841fdf5d64499a8ae8514dc004@changeid
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/partitions/core.c')
| -rw-r--r-- | block/partitions/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/partitions/core.c b/block/partitions/core.c index cdad05f97647..815ed33caa1b 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; } |