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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-11-22 15:14:23 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-11-25 09:15:42 +0100 |
| commit | 127581b64b432804948535d49847b36366b9ff64 (patch) | |
| tree | a80327504b911543d9a18e8a29d49a35ee8759d6 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | s390,time: revert direct ktime path for s390 clockevent device (diff) | |
| download | linux-dev-127581b64b432804948535d49847b36366b9ff64.tar.xz linux-dev-127581b64b432804948535d49847b36366b9ff64.zip | |
s390/mm: handle asce-type exceptions as normal page fault
Git commit 9e34f2686bb088b211b6cac8772e1f644c6180f8
"s390/mm,tlb: tlb flush on page table upgrade fixup" removed the
exception handler for the asce-type exception. This is incorrect
as the user-copy with MVCOS can cause asce-type exceptions in
the kernel if a user pointer is too large. Those need to be
handled with do_no_context to branch to the fixup in the
user-copy code.
The simplest fix for this problem is to call do_dat_exception for
asce-type excpetions, as there is no vma for the address the code
will handle the exception correctly.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions