https://github.com/torvalds/linux
Revision 498343967613183611ac37dccb2846496d954c06 authored by Jan Beulich on 06 May 2009, 12:06:47 UTC, committed by H. Peter Anvin on 08 May 2009, 04:51:34 UTC
With the introduction of the .brk section, special care must be taken
that no unused page table entries remain if _brk_end and _end are
separated by a 2M page boundary. cleanup_highmap() runs very early and
hence cannot take care of that, hence potential entries needing to be
removed past _brk_end must be cleared once the brk allocator has done
its job.

[ Impact: avoids undesirable TLB aliases ]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
1 parent 6143876
History
Tip revision: 498343967613183611ac37dccb2846496d954c06 authored by Jan Beulich on 06 May 2009, 12:06:47 UTC
x86-64: finish cleanup_highmaps()'s job wrt. _brk_end
Tip revision: 4983439
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.gitignore -rw-r--r-- 885 bytes
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