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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-07-23 08:53:23 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-07-23 08:53:23 +1000 |
| commit | ca91e6c09d656c6deb1f2bc5d57186c718106aa5 (patch) | |
| tree | a8d30759b6fac5616691b7a4a94222ab371d2bd6 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | powerpc/mm: Handle hypervisor pte insert failure in __hash_page_huge (diff) | |
| download | linux-dev-ca91e6c09d656c6deb1f2bc5d57186c718106aa5.tar.xz linux-dev-ca91e6c09d656c6deb1f2bc5d57186c718106aa5.zip | |
powerpc/mm: Move around testing of _PAGE_PRESENT in hash code
Instead of adding _PAGE_PRESENT to the access permission mask
in each low level routine independently, we add it once from
hash_page().
We also move the preliminary access check (the racy one before
the PTE is locked) up so it applies to the huge page case. This
duplicates code in __hash_page_huge() which we'll remove in a
subsequent patch to fix a race in there.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions