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Chris Dunlop
d07b7c7f21
zfs_sb_t has grown to the point where using kmem_zalloc() for allocations is triggering the 32k warning threshold. We can't safely convert this entire allocation to use vmem_alloc() instead of kmem_alloc() because the backing_dev_info structure is embedded here. It depends on the bit_waitqueue() function which won't behave properly when given a virtual address. Instead, use vmem_alloc() to allocate the z_hold_mtx array separately. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chris Dunlop <chris@onthe.net.au> Closes #3178