powerpc/signal32: Switch handle_signal32() to user_access_begin() logic

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Replace the access_ok() by user_access_begin() and change all user
accesses to unsafe_ version.

Move flush_icache_range() outside the user access block.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a27797f781aa00da96f8284c898173d18e952361.1597770847.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2020-08-18 17:19:29 +00:00 • committed by Michael Ellerman

parent 8d33001dd6

commit ad65f4909f

1 changed files with 16 additions and 13 deletions

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arch/powerpc/kernel/signal_32.c

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