aboutsummaryrefslogtreecommitdiff
path: root/kernel
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2010-10-19 22:06:36 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-10-19 22:06:36 +0100
commit809b4e00baf006a990a73329ba381d536c6fa277 (patch)
treee949e0efd019d6f932537aba762792b07a84351c /kernel
parenta0a55682b83fd5f012afadcf415b030d7424ae68 (diff)
parent79a94c3538bda6869d7bb150b5e02dd3a72314dd (diff)
Merge branch 'devel-stable' into devel
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kfifo.c2
-rw-r--r--kernel/module.c4
-rw-r--r--kernel/perf_event.c4
-rw-r--r--kernel/signal.c8
-rw-r--r--kernel/smp.c17
-rw-r--r--kernel/sysctl.c2
-rw-r--r--kernel/trace/ring_buffer.c2
7 files changed, 29 insertions, 10 deletions
diff --git a/kernel/kfifo.c b/kernel/kfifo.c
index 6b5580c5764..01a0700e873 100644
--- a/kernel/kfifo.c
+++ b/kernel/kfifo.c
@@ -365,8 +365,6 @@ static unsigned int setup_sgl(struct __kfifo *fifo, struct scatterlist *sgl,
n = setup_sgl_buf(sgl, fifo->data + off, nents, l);
n += setup_sgl_buf(sgl + n, fifo->data, nents - n, len - l);
- if (n)
- sg_mark_end(sgl + n - 1);
return n;
}
diff --git a/kernel/module.c b/kernel/module.c
index d0b5f8db11b..ccd64199184 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1537,6 +1537,7 @@ static int __unlink_module(void *_mod)
{
struct module *mod = _mod;
list_del(&mod->list);
+ module_bug_cleanup(mod);
return 0;
}
@@ -2625,6 +2626,7 @@ static struct module *load_module(void __user *umod,
if (err < 0)
goto ddebug;
+ module_bug_finalize(info.hdr, info.sechdrs, mod);
list_add_rcu(&mod->list, &modules);
mutex_unlock(&module_mutex);
@@ -2650,6 +2652,8 @@ static struct module *load_module(void __user *umod,
mutex_lock(&module_mutex);
/* Unlink carefully: kallsyms could be walking list. */
list_del_rcu(&mod->list);
+ module_bug_cleanup(mod);
+
ddebug:
if (!mod->taints)
dynamic_debug_remove(info.debug);
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index db5b5606468..b98bed3d818 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -2202,15 +2202,13 @@ static void perf_event_for_each(struct perf_event *event,
static int perf_event_period(struct perf_event *event, u64 __user *arg)
{
struct perf_event_context *ctx = event->ctx;
- unsigned long size;
int ret = 0;
u64 value;
if (!event->attr.sample_period)
return -EINVAL;
- size = copy_from_user(&value, arg, sizeof(value));
- if (size != sizeof(value))
+ if (copy_from_user(&value, arg, sizeof(value)))
return -EFAULT;
if (!value)
diff --git a/kernel/signal.c b/kernel/signal.c
index bded6518778..919562c3d6b 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2215,6 +2215,14 @@ int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
#ifdef __ARCH_SI_TRAPNO
err |= __put_user(from->si_trapno, &to->si_trapno);
#endif
+#ifdef BUS_MCEERR_AO
+ /*
+ * Other callers might not initialize the si_lsb field,
+ * so check explicitely for the right codes here.
+ */
+ if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+ err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
+#endif
break;
case __SI_CHLD:
err |= __put_user(from->si_pid, &to->si_pid);
diff --git a/kernel/smp.c b/kernel/smp.c
index 75c970c715d..ed6aacfcb7e 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -365,9 +365,10 @@ call:
EXPORT_SYMBOL_GPL(smp_call_function_any);
/**
- * __smp_call_function_single(): Run a function on another CPU
+ * __smp_call_function_single(): Run a function on a specific CPU
* @cpu: The CPU to run on.
* @data: Pre-allocated and setup data structure
+ * @wait: If true, wait until function has completed on specified CPU.
*
* Like smp_call_function_single(), but allow caller to pass in a
* pre-allocated data structure. Useful for embedding @data inside
@@ -376,8 +377,10 @@ EXPORT_SYMBOL_GPL(smp_call_function_any);
void __smp_call_function_single(int cpu, struct call_single_data *data,
int wait)
{
- csd_lock(data);
+ unsigned int this_cpu;
+ unsigned long flags;
+ this_cpu = get_cpu();
/*
* Can deadlock when called with interrupts disabled.
* We allow cpu's that are not yet online though, as no one else can
@@ -387,7 +390,15 @@ void __smp_call_function_single(int cpu, struct call_single_data *data,
WARN_ON_ONCE(cpu_online(smp_processor_id()) && wait && irqs_disabled()
&& !oops_in_progress);
- generic_exec_single(cpu, data, wait);
+ if (cpu == this_cpu) {
+ local_irq_save(flags);
+ data->func(data->info);
+ local_irq_restore(flags);
+ } else {
+ csd_lock(data);
+ generic_exec_single(cpu, data, wait);
+ }
+ put_cpu();
}
/**
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f88552c6d22..3a45c224770 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2485,7 +2485,7 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
kbuf[left] = 0;
}
- for (; left && vleft--; i++, min++, max++, first=0) {
+ for (; left && vleft--; i++, first = 0) {
unsigned long val;
if (write) {
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 492197e2f86..bca96377fd4 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -405,7 +405,7 @@ static inline int test_time_stamp(u64 delta)
#define BUF_MAX_DATA_SIZE (BUF_PAGE_SIZE - (sizeof(u32) * 2))
/* Max number of timestamps that can fit on a page */
-#define RB_TIMESTAMPS_PER_PAGE (BUF_PAGE_SIZE / RB_LEN_TIME_STAMP)
+#define RB_TIMESTAMPS_PER_PAGE (BUF_PAGE_SIZE / RB_LEN_TIME_EXTEND)
int ring_buffer_print_page_header(struct trace_seq *s)
{