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| author | David S. Miller <[email protected]> | 2010-03-29 20:08:52 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2010-03-29 20:08:52 +0000 |
| commit | 9e8307ecaf9f8c8b5b3b22145021204c4e73114a (patch) | |
| tree | d0361a2e093120880adecbd87c1f0f26a57541e9 /net/lapb/lapb_in.c | |
| parent | arch/sparc/kernel: Use set_cpus_allowed_ptr (diff) | |
| download | kernel-9e8307ecaf9f8c8b5b3b22145021204c4e73114a.tar.gz kernel-9e8307ecaf9f8c8b5b3b22145021204c4e73114a.zip | |
sparc64: Properly truncate pt_regs framepointer in perf callback.
For 32-bit processes, we save the full 64-bits of the regs in pt_regs.
But unlike when the userspace actually does load and store
instructions, the top 32-bits don't get automatically truncated by the
cpu in kernel mode (because the kernel doesn't execute with PSTATE_AM
address masking enabled).
So we have to do it by hand.
Reported-by: Frederic Weisbecker <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/lapb/lapb_in.c')
0 files changed, 0 insertions, 0 deletions