diff options
author | Sven Schnelle <svens@linux.ibm.com> | 2020-09-15 08:53:50 +0200 |
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committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-09-26 15:51:20 +0200 |
commit | b3bd02495cb339124f13135d51940cf48d83e5cb (patch) | |
tree | 68397d2b7a494f3cc546a242a19c082077b96835 /arch/s390/include/asm/stp.h | |
parent | fa6999e326fe7851ecbd572b8cb9be8e930ebf41 (diff) |
s390/stp: add locking to sysfs functions
The sysfs function might race with stp_work_fn. To prevent that,
add the required locking. Another issue is that the sysfs functions
are checking the stp_online flag, but this flag just holds the user
setting whether STP is enabled. Add a flag to clock_sync_flag whether
stp_info holds valid data and use that instead.
Cc: stable@vger.kernel.org
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/stp.h')
0 files changed, 0 insertions, 0 deletions