[S390] etr/stp: fix possible deadlock

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Precreate stop_machine threads in case the machine supports ETR/STP.
Otherwise we might deadlock if a time sync operation gets scheduled
and the creation of stop_machine threads would cause disk I/O.
This is just the minimal fix.
The real fix would be to only precreate stop_machine threads if
ETR/STP is actually used. But that would be a rather large and
complicated patch.

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

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Heiko Carstens 2009-01-23 16:40:26 +01:00

parent f9a2f797fc

commit 179cb81aa1

1 changed files with 4 additions and 2 deletions

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arch/s390/kernel/time.c

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