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| author | Michael Ellerman <michael@ellerman.id.au> | 2008-07-16 14:21:34 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-08-20 16:34:57 +1000 |
| commit | 01f3880dd8a7fa78c419da2db740cba511ca7798 (patch) | |
| tree | 6a1e6ab37fa42ae1847f2ff44f26270dc6848c7c /kernel/audit_tree.c | |
| parent | cd5aeb9f6cf7ada6baa218e01b4299e201497cde (diff) | |
| download | op-kernel-dev-01f3880dd8a7fa78c419da2db740cba511ca7798.zip op-kernel-dev-01f3880dd8a7fa78c419da2db740cba511ca7798.tar.gz | |
powerpc: Streamline ret_from_except_lite for non-iSeries platforms
There is a small passage of code in ret_from_except_lite which is
only required on iSeries. For a multi-platform kernel on non-iSeries
machines this means we end up executing ~15 nops in ret_from_except_lite.
It would be nicer if non-iSeries could skip the code entirely, and on
iSeries we can jump out of line to execute the code.
I have no performance numbers to justify this, other than the assertion
that executing 15 nops takes longer than executing 0.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'kernel/audit_tree.c')
0 files changed, 0 insertions, 0 deletions
