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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-07-19 14:49:24 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-02 13:11:07 +1000 |
| commit | c433ec0455f921eaf8dd0262a718ce6f8ad62ea2 (patch) | |
| tree | 0ebadb7e7d100f4aebeb137ad04d09e96abbaff3 /arch/powerpc/kernel/syscalls.c | |
| parent | 7afad422ac61067473d5f3d20bbd5472af533bcd (diff) | |
| download | linux-c433ec0455f921eaf8dd0262a718ce6f8ad62ea2.tar.gz | |
powerpc/mm: Pre-filter SRR1 bits before do_page_fault()
By filtering the relevant SRR1 bits in the assembly rather than
in do_page_fault() itself, we avoid a conditional branch (since we
already come from different path for data and instruction faults).
This will allow more simplifications later
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/syscalls.c')
0 files changed, 0 insertions, 0 deletions