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author | Helge Deller <deller@gmx.de> | 2018-10-12 23:37:46 +0300 |
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committer | Helge Deller <deller@gmx.de> | 2018-10-17 09:18:01 +0300 |
commit | 3c229b3f2dd8133f61bb81d3cb018be92f4bba39 (patch) | |
tree | bff3ada8bcb9d2b031300f94f8a0a79874aee84e /tools/perf/scripts/python/call-graph-from-sql.py | |
parent | 4dd5b673fa625d647447ae4c477bf946ae877711 (diff) | |
download | linux-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')
0 files changed, 0 insertions, 0 deletions