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-rw-r--r--arch/sparc/include/asm/cache.h2
-rw-r--r--arch/sparc/kernel/perf_event.c14
-rw-r--r--arch/sparc/kernel/process_64.c1
-rw-r--r--arch/sparc/kernel/stacktrace.c23
-rw-r--r--arch/sparc/kernel/traps_64.c14
-rw-r--r--drivers/sbus/char/flash.c6
6 files changed, 56 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 41f85ae4bd4a..78b07009f60a 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -7,6 +7,8 @@
#ifndef _SPARC_CACHE_H
#define _SPARC_CACHE_H
+#define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
+
#define L1_CACHE_SHIFT 5
#define L1_CACHE_BYTES 32
#define L1_CACHE_ALIGN(x) ((((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)))
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index e2771939341d..34ce49f80eac 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -14,6 +14,7 @@
#include <linux/perf_event.h>
#include <linux/kprobes.h>
+#include <linux/ftrace.h>
#include <linux/kernel.h>
#include <linux/kdebug.h>
#include <linux/mutex.h>
@@ -1276,6 +1277,9 @@ static void perf_callchain_kernel(struct pt_regs *regs,
struct perf_callchain_entry *entry)
{
unsigned long ksp, fp;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ int graph = 0;
+#endif
callchain_store(entry, PERF_CONTEXT_KERNEL);
callchain_store(entry, regs->tpc);
@@ -1303,6 +1307,16 @@ static void perf_callchain_kernel(struct pt_regs *regs,
fp = (unsigned long)sf->fp + STACK_BIAS;
}
callchain_store(entry, pc);
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ if ((pc + 8UL) == (unsigned long) &return_to_handler) {
+ int index = current->curr_ret_stack;
+ if (current->ret_stack && index >= graph) {
+ pc = current->ret_stack[index - graph].ret;
+ callchain_store(entry, pc);
+ graph++;
+ }
+ }
+#endif
} while (entry->nr < PERF_MAX_STACK_DEPTH);
}
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index a5cf3864b31f..dbe81a368b45 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -202,6 +202,7 @@ void show_regs(struct pt_regs *regs)
regs->u_regs[15]);
printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
show_regwindow(regs);
+ show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
}
struct global_reg_snapshot global_reg_snapshot[NR_CPUS];
diff --git a/arch/sparc/kernel/stacktrace.c b/arch/sparc/kernel/stacktrace.c
index acb12f673757..3e0815349630 100644
--- a/arch/sparc/kernel/stacktrace.c
+++ b/arch/sparc/kernel/stacktrace.c
@@ -1,6 +1,7 @@
#include <linux/sched.h>
#include <linux/stacktrace.h>
#include <linux/thread_info.h>
+#include <linux/ftrace.h>
#include <linux/module.h>
#include <asm/ptrace.h>
#include <asm/stacktrace.h>
@@ -12,6 +13,10 @@ static void __save_stack_trace(struct thread_info *tp,
bool skip_sched)
{
unsigned long ksp, fp;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ struct task_struct *t;
+ int graph = 0;
+#endif
if (tp == current_thread_info()) {
stack_trace_flush();
@@ -21,6 +26,9 @@ static void __save_stack_trace(struct thread_info *tp,
}
fp = ksp + STACK_BIAS;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ t = tp->task;
+#endif
do {
struct sparc_stackf *sf;
struct pt_regs *regs;
@@ -44,8 +52,21 @@ static void __save_stack_trace(struct thread_info *tp,
if (trace->skip > 0)
trace->skip--;
- else if (!skip_sched || !in_sched_functions(pc))
+ else if (!skip_sched || !in_sched_functions(pc)) {
trace->entries[trace->nr_entries++] = pc;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ if ((pc + 8UL) == (unsigned long) &return_to_handler) {
+ int index = t->curr_ret_stack;
+ if (t->ret_stack && index >= graph) {
+ pc = t->ret_stack[index - graph].ret;
+ if (trace->nr_entries <
+ trace->max_entries)
+ trace->entries[trace->nr_entries++] = pc;
+ graph++;
+ }
+ }
+#endif
+ }
} while (trace->nr_entries < trace->max_entries);
}
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 9da57f032983..42ad2ba85010 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -17,6 +17,7 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/kdebug.h>
+#include <linux/ftrace.h>
#include <linux/gfp.h>
#include <asm/smp.h>
@@ -2154,6 +2155,9 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
unsigned long fp, thread_base, ksp;
struct thread_info *tp;
int count = 0;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ int graph = 0;
+#endif
ksp = (unsigned long) _ksp;
if (!tsk)
@@ -2193,6 +2197,16 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
}
printk(" [%016lx] %pS\n", pc, (void *) pc);
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ if ((pc + 8UL) == (unsigned long) &return_to_handler) {
+ int index = tsk->curr_ret_stack;
+ if (tsk->ret_stack && index >= graph) {
+ pc = tsk->ret_stack[index - graph].ret;
+ printk(" [%016lx] %pS\n", pc, (void *) pc);
+ graph++;
+ }
+ }
+#endif
} while (++count < 16);
}
diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c
index 19f255b97c86..d3b62eb0fba7 100644
--- a/drivers/sbus/char/flash.c
+++ b/drivers/sbus/char/flash.c
@@ -105,9 +105,9 @@ static ssize_t
flash_read(struct file * file, char __user * buf,
size_t count, loff_t *ppos)
{
- unsigned long p = file->f_pos;
+ loff_t p = *ppos;
int i;
-
+
if (count > flash.read_size - p)
count = flash.read_size - p;
@@ -118,7 +118,7 @@ flash_read(struct file * file, char __user * buf,
buf++;
}
- file->f_pos += count;
+ *ppos += count;
return count;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 15:15:58 +0100