Date: Sat, 30 Oct 2010 04:53:50 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/vm vm_map.c Message-ID: <201010300453.o9U4rwKt085195@repoman.freebsd.org>
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alc 2010-10-30 04:53:50 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/vm vm_map.c
Log:
SVN rev 214546 on 2010-10-30 04:53:50Z by alc
MFC r213408
If vm_map_find() is asked to allocate a superpage-aligned region of
virtual addresses that is greater than a superpage in size but not a
multiple of the superpage size, then vm_map_find() is not always
expanding the kernel pmap to support the last few small pages being
allocated. Previously, we grew the kernel page table in
vm_map_findspace() when we found the first available virtual address.
Now, instead, we defer the call to pmap_growkernel() until we are
committed to a range of virtual addresses in vm_map_insert().
Revision Changes Path
1.419.2.7 +8 -14 src/sys/vm/vm_map.c
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