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[dm-devel] kmalloc after down_write?



I am reading dm-snap.c and found that in register_snapshot(),
http://lxr.linux.no/source/drivers/md/dm-snap.c?v=2.6.8.1#L159,
the kmalloc is called with rwsem held. I am not sure if this is a good
one since kmalloc may sleep as well.

ming




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