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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-30 13:38:36 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-04-30 13:38:44 +0200 |
| commit | 0b18d318b80a7f350648ca8f7cc00a2f688104cb (patch) | |
| tree | 7a5346faefb67b24f05c00691ca170a6805b0921 /include/asm-s390 | |
| parent | [S390] Add missing ifndef/define to include/asm-s390/sysinfo.h. (diff) | |
| download | linux-dev-0b18d318b80a7f350648ca8f7cc00a2f688104cb.tar.xz linux-dev-0b18d318b80a7f350648ca8f7cc00a2f688104cb.zip | |
[S390] smp: Fix locking order.
On some smp sysfs store attributes get_online_cpus() may block on
cpu_hotplug.lock, but we hold already smp_cpu_state_mutex. Since the
locking order on cpu hotplug via arch_update_cpu_topology is inverse
this might lead to deadlocks.
So make sure locking order is always the same.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
0 files changed, 0 insertions, 0 deletions