Blackfin: fix MPU handling of invalid memory accesses

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The protect_page() function was incorrectly setting up the hardware tables
based on possible access capabilities rather than the actual requested
values.  This means we would grant more access to mmap-ed pages than we
should have.  Once we fix this, we need to tweak the signal generated by
such accesses to aline ourselves with other ports.  This allows the LTP
mmap0{5,6,7} cases to run properly.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

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Graf Yang 2009-07-21 02:26:57 +00:00 • committed by Mike Frysinger

parent 8fc4dd9e87

commit 36b8412886

2 changed files with 4 additions and 4 deletions

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6

arch/blackfin/include/asm/mmu_context.h

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2

arch/blackfin/kernel/traps.c

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