[S390] serialize stp/etr work

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The work function dispatched with schedule_work() can be run twice
on different cpus because run_workqueue clears the WORK_STRUCT_PENDING
bit and then executes the function. Another cpu can call schedule_work()
again and run the work function a second time before the first call
is completed. This patch serialized the etr and stp work function with
a mutex.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Martin Schwidefsky 2008-12-25 13:38:38 +01:00

parent 750887dedc

commit 0b3016b781

1 changed files with 18 additions and 5 deletions

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23

arch/s390/kernel/time.c

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