CVS commit: src/sys/uvm

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

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

this should fix KASSERT() due to PG_RDONLY on write with wapbl

towards resolution of PR kern/53124


To generate a diff of this commit:
cvs rdiff -u -r1.98 -r1.99 src/sys/uvm/uvm_bio.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.