md/raid5: ensure we create a unique name for kmem_cache when mddev has no gendisk

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We will shortly allow md devices with no gendisk (they are attached to
a dm-target instead).  That will cause mdname() to return 'mdX'.
There is one place where mdname really needs to be unique: when
creating the name for a slab cache.
So in that case, if there is no gendisk, you the address of the mddev
formatted in HEX to provide a unique name.

Signed-off-by: NeilBrown <neilb@suse.de>

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This commit is contained in:

NeilBrown 2010-06-01 19:37:25 +10:00

parent c41d4ac40d

commit f4be6b43f1

2 changed files with 9 additions and 5 deletions

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drivers/md/raid5.c

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2

drivers/md/raid5.h

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