s390/kprobes: use static buffer for insn_page

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With a relocatable kernel that could reside at any place in memory, the
current logic for allocating a kprobes insn_page does not work. The
GFP_DMA allocated buffer might be more than 2 GB away from the kernel.

Use a static buffer for the insn_page instead.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Gerald Schaefer 2019-02-03 21:36:46 +01:00 • committed by Martin Schwidefsky

parent ff4a742dde

commit fd3d2742d5

1 changed files with 18 additions and 17 deletions

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arch/s390/kernel/kprobes.c

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