"Jaromir Dolecek" writes:
> Module Name:  src
> Committed By: jdolecek
> Date:         Sun Dec  9 20:45:37 UTC 2018
> Modified Files:
>       src/sys/uvm: uvm_bio.c
> Log Message:
> for direct map case, avoid PGO_NOBLOCKALLOC when writing, it makes
> genfs_getpages() return unallocated pages using the zero page and
> PG_RDONLY; the old code relied on fault logic to get it allocated, which
> the direct case can't rely on
> instead just allocate the blocks right away; pass PGO_JOURNALLOCKED
> so that code wouldn't try to take wapbl lock, this code path is called
> with it already held

can you assert this if not already done?  that the locking is OK,
i mean...



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