s390: rework __switch_to() to allow larger task_struct offsets

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If GCC_PLUGIN_RANDSTRUCT is enabled the members of task_struct will be
shuffled around. The offsets of the "pid" and "stack" members within
task_struct may not necessarily fit into 12 bits anymore, which causes
compile errors within __switch_to, since instructions are used, which
only have a 12 bit displacement field.

Therefore rework __switch_to, to allow for larger offsets.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Heiko Carstens 2017-11-16 14:54:04 +01:00 • committed by Martin Schwidefsky

parent 38389ec84e

commit 3241d3eb7d

1 changed files with 7 additions and 8 deletions

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arch/s390/kernel/entry.S

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