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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-04 15:08:28 +0000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-05 16:05:23 +1000 |
commit | 636802ef96eebe279b22ad9f9dacfe29291e45c7 (patch) | |
tree | aedbdd51b2558d9badd12cb68e5ecc4ed5823474 /arch/powerpc/kernel/traps.c | |
parent | 9fb1b36ca1234e64a5d1cc573175303395e3354d (diff) | |
download | lwn-636802ef96eebe279b22ad9f9dacfe29291e45c7.tar.gz lwn-636802ef96eebe279b22ad9f9dacfe29291e45c7.zip |
powerpc: Don't use __put_user() in patch_instruction
patch_instruction() can be called very early on ppc32, when the kernel
isn't yet running at it's linked address. That can cause the !
is_kernel_addr() test in __put_user() to trip and call might_sleep()
which is very bad at that point during boot.
Use a lower level function instead for now, at least until we get to
rework ppc32 boot process to do the code patching later, like ppc64
does.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
0 files changed, 0 insertions, 0 deletions