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(parent: 51d42f0) | patch
powerpc/mm/slice: Remove intermediate bitmap copy
authorChristophe Leroy <christophe.leroy@c-s.fr>
Thu, 22 Feb 2018 14:27:20 +0000 (15:27 +0100)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 5 Mar 2018 22:21:22 +0000 (09:21 +1100)
commit326691ad4f179e6edc7eb1271e618dd673e4736d
tree6308fdcb9a7cd48a1c3b978f64d01d68f614ce38tree | snapshot
parent51d42f0f5fd6c74144d19bf6a663521e2ea99765commit | diff
powerpc/mm/slice: Remove intermediate bitmap copy

bitmap_or() and bitmap_andnot() can work properly with dst identical
to src1 or src2. There is no need of an intermediate result bitmap
that is copied back to dst in a second step.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/mm/slice.c diff | blob | history
Domain: System / Kernel;