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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-31 17:03:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-31 17:03:50 -0800 |
| commit | d5b9b787b5e1618dfe82a2c2a6972374e85b02db (patch) | |
| tree | 42fa7b4e4381e40fc94ae41fd932f9b7b1abece6 /arch/ia64/kernel/smp.c | |
| parent | 16b7b2ac0148e839da86af8747b6fa4aad43a9b7 (diff) | |
| parent | 024e4f2c5175a482c234cf67ed22368d770bf78f (diff) | |
| download | op-kernel-dev-d5b9b787b5e1618dfe82a2c2a6972374e85b02db.zip op-kernel-dev-d5b9b787b5e1618dfe82a2c2a6972374e85b02db.tar.gz | |
Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Correct definition of handle_IPI
[IA64] move SAL_CACHE_FLUSH check later in boot
[IA64] MCA recovery: Montecito support
[IA64] cpu-hotplug: Fixing confliction between CPU hot-add and IPI
[IA64] don't double >> PAGE_SHIFT pointer for /dev/kmem access
Diffstat (limited to 'arch/ia64/kernel/smp.c')
| -rw-r--r-- | arch/ia64/kernel/smp.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index 657ac99..6ab95cea 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -108,7 +108,7 @@ cpu_die(void) } irqreturn_t -handle_IPI (int irq, void *dev_id, struct pt_regs *regs) +handle_IPI (int irq, void *dev_id) { int this_cpu = get_cpu(); unsigned long *pending_ipis = &__ia64_per_cpu_var(ipi_operation); @@ -328,10 +328,14 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic, int wait) { struct call_data_struct data; - int cpus = num_online_cpus()-1; + int cpus; - if (!cpus) + spin_lock(&call_lock); + cpus = num_online_cpus() - 1; + if (!cpus) { + spin_unlock(&call_lock); return 0; + } /* Can deadlock when called with interrupts disabled */ WARN_ON(irqs_disabled()); @@ -343,8 +347,6 @@ smp_call_function (void (*func) (void *info), void *info, int nonatomic, int wai if (wait) atomic_set(&data.finished, 0); - spin_lock(&call_lock); - call_data = &data; mb(); /* ensure store to call_data precedes setting of IPI_CALL_FUNC */ send_IPI_allbutself(IPI_CALL_FUNC); |
