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| author |   Stephen Warren <swarren@nvidia.com> | 2012-11-08 16:12:28 -0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2012-11-23 14:28:58 +0100 |
| commit | d33b98fc82b0908e91fb05ae081acaed7323f9d2 (patch) | |
| tree | fe5803ac8510ab46f0fcbcc1712343806699a5cb /drivers/md/raid10.c | |
| parent | init: reduce PARTUUID min length to 1 from 36 (diff) | |
| download | linux-dev-d33b98fc82b0908e91fb05ae081acaed7323f9d2.tar.xz linux-dev-d33b98fc82b0908e91fb05ae081acaed7323f9d2.zip | |
block: partition: msdos: provide UUIDs for partitions
The MSDOS/MBR partition table includes a 32-bit unique ID, often referred
to as the NT disk signature. When combined with a partition number within
the table, this can form a unique ID similar in concept to EFI/GPT's
partition UUID. Constructing and recording this value in struct
partition_meta_info allows MSDOS partitions to be referred to on the
kernel command-line using the following syntax:
root=PARTUUID=0002dd75-01
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Will Drewry <wad@chromium.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/raid10.c')
0 files changed, 0 insertions, 0 deletions