CVS commit: src/sys/arch/x86/x86

["Chuck Silvers" <chs%netbsd.org@localhost>]

Module Name:    src
Committed By:   chs
Date:           Thu Mar  9 00:21:55 UTC 2017

Modified Files:
        src/sys/arch/x86/x86: pmap.c

Log Message:
in pmap_get_ptp(), if we need to allocate multiple new ptp levels
and succeed in allocating some pages but fail to get them all,
free any ptps we did allocate before returning.
also, only consume kernel-reserve pages if pmap_enter()
is called without PMAP_CANFAIL set, to help avoid deadlocking
during high memory pressure.


To generate a diff of this commit:
cvs rdiff -u -r1.241 -r1.242 src/sys/arch/x86/x86/pmap.c

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