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authorAlexander Duyck <alexander.h.duyck@intel.com>2012-11-17 01:57:13 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2012-11-17 04:42:09 +0400
commitfc8d782677f163dee76427fdd8a92bebd2b50b23 (patch)
treec3e228bd6a3c194cb28276bb834582a34a4ff371 /kernel/Kconfig.preempt
parent05a476b6e3795f205806662bf09ab95774266292 (diff)
downloadlinux-fc8d782677f163dee76427fdd8a92bebd2b50b23.tar.xz
x86: Use __pa_symbol instead of __pa on C visible symbols
When I made an attempt at separating __pa_symbol and __pa I found that there were a number of cases where __pa was used on an obvious symbol. I also caught one non-obvious case as _brk_start and _brk_end are based on the address of __brk_base which is a C visible symbol. In mark_rodata_ro I was able to reduce the overhead of kernel symbol to virtual memory translation by using a combination of __va(__pa_symbol()) instead of page_address(virt_to_page()). Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Link: http://lkml.kernel.org/r/20121116215640.8521.80483.stgit@ahduyck-cp1.jf.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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