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authorHelge Deller <deller@gmx.de>2018-10-12 23:37:46 +0300
committerHelge Deller <deller@gmx.de>2018-10-17 09:18:01 +0300
commit3c229b3f2dd8133f61bb81d3cb018be92f4bba39 (patch)
treebff3ada8bcb9d2b031300f94f8a0a79874aee84e /tools/perf/scripts/python/call-graph-from-sql.py
parent4dd5b673fa625d647447ae4c477bf946ae877711 (diff)
downloadlinux-3c229b3f2dd8133f61bb81d3cb018be92f4bba39.tar.xz
parisc: Fix map_pages() to not overwrite existing pte entries
Fix a long-existing small nasty bug in the map_pages() implementation which leads to overwriting already written pte entries with zero, *if* map_pages() is called a second time with an end address which isn't aligned on a pmd boundry. This happens for example if we want to remap only the text segment read/write in order to run alternative patching on the code. Exiting the loop when we reach the end address fixes this. Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
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