[S390] clock sync mode flags

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The clock sync mode flag CLOCK_SYNC_STP is not cleared when stp
is set offline. In this case the get_sync_clock() function returns
-EACCESS and the dasd driver will block all i/o until stp is enabled
again. In addition get_sync_clock can return -EACCESS if the clock is
not in sync instead of -EAGAIN.

Rework the stp/etr online handling to fix these problems.

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

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This commit is contained in:

Martin Schwidefsky 2009-03-26 15:24:21 +01:00

parent 56e25e9777

commit 8283cb43ab

1 changed files with 44 additions and 27 deletions

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arch/s390/kernel/time.c

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