diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/crash_dump.c | 3 | ||||
| -rw-r--r-- | kernel/rcupdate.c | 30 | ||||
| -rw-r--r-- | kernel/sys_ni.c | 2 |
3 files changed, 35 insertions, 0 deletions
diff --git a/kernel/crash_dump.c b/kernel/crash_dump.c index 334c37f5218a..fccb27dbc623 100644 --- a/kernel/crash_dump.c +++ b/kernel/crash_dump.c @@ -14,10 +14,12 @@ #include <asm/io.h> #include <asm/uaccess.h> +#include <asm/kexec.h> /* Stores the physical address of elf header of crash image. */ unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; +#ifndef HAVE_ARCH_COPY_OLDMEM_PAGE /** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied @@ -59,3 +61,4 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, kfree(page); return csize; } +#endif diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c index 30b0bba03859..ccc45d49ce71 100644 --- a/kernel/rcupdate.c +++ b/kernel/rcupdate.c @@ -429,6 +429,36 @@ static void rcu_process_callbacks(unsigned long unused) &__get_cpu_var(rcu_bh_data)); } +static int __rcu_pending(struct rcu_ctrlblk *rcp, struct rcu_data *rdp) +{ + /* This cpu has pending rcu entries and the grace period + * for them has completed. + */ + if (rdp->curlist && !rcu_batch_before(rcp->completed, rdp->batch)) + return 1; + + /* This cpu has no pending entries, but there are new entries */ + if (!rdp->curlist && rdp->nxtlist) + return 1; + + /* This cpu has finished callbacks to invoke */ + if (rdp->donelist) + return 1; + + /* The rcu core waits for a quiescent state from the cpu */ + if (rdp->quiescbatch != rcp->cur || rdp->qs_pending) + return 1; + + /* nothing to do */ + return 0; +} + +int rcu_pending(int cpu) +{ + return __rcu_pending(&rcu_ctrlblk, &per_cpu(rcu_data, cpu)) || + __rcu_pending(&rcu_bh_ctrlblk, &per_cpu(rcu_bh_data, cpu)); +} + void rcu_check_callbacks(int cpu, int user) { if (user || diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index bd3b9bfcfcec..17313b99e53d 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -112,3 +112,5 @@ cond_syscall(sys_pciconfig_iobase); cond_syscall(sys32_ipc); cond_syscall(sys32_sysctl); cond_syscall(ppc_rtas); +cond_syscall(sys_spu_run); +cond_syscall(sys_spu_create); |