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block: partition: add partition specific uevent callbacks for partiti…
…on info This patch has been carried in the Android tree for quite some time and is one of the few patches required to get a mainline kernel up and running with an exsiting Android userspace. So I wanted to submit it for review and consideration if it should be merged. For partitions, add new uevent parameters 'PARTN' which specifies the partitions index in the table, and 'PARTNAME', which specifies PARTNAME specifices the partition name of a partition device. Android's userspace uses this for creating device node links from the partition name and number, ie: /dev/block/platform/soc/by-name/system or /dev/block/platform/soc/by-num/p1 One can see its usage here: https://android.googlesource.com/platform/system/core/+/master/init/devices.cpp#355 and https://android.googlesource.com/platform/system/core/+/master/init/devices.cpp#494 [[email protected]: dropped NPARTS and reworded commit message for context] Signed-off-by: Dima Zavin <[email protected]> Signed-off-by: John Stultz <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Rom Lemarchand <[email protected]> Cc: Android Kernel Team <[email protected]> Cc: Jeff Moyer <[email protected]> Cc: <[email protected]> Cc: Kees Cook <[email protected]> Cc: Kay Sievers <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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