X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fia64%2Fkernel%2Fperfmon.c;h=abc7ad03588630ed9ade6a593a8a96cbda619918;hb=d694c16bc332c7e706f44e3d10bea06228166a6f;hp=86e144f321ff5b59e9545eb80d9ec751b4415846;hpb=958b7f37ee0fb2846c8d44310a68ae9605614ff9;p=powerpc.git

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 86e144f321..abc7ad0358 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -147,7 +147,7 @@
  * in UP:
  * 	- we need to protect against PMU overflow interrupts (local_irq_disable)
  *
- * spin_lock_irqsave()/spin_lock_irqrestore():
+ * spin_lock_irqsave()/spin_unlock_irqrestore():
  * 	in SMP: local_irq_disable + spin_lock
  * 	in UP : local_irq_disable
  *
@@ -521,19 +521,57 @@ pfm_sysctl_t pfm_sysctl;
 EXPORT_SYMBOL(pfm_sysctl);
 
 static ctl_table pfm_ctl_table[]={
-	{1, "debug", &pfm_sysctl.debug, sizeof(int), 0666, NULL, &proc_dointvec, NULL,},
-	{2, "debug_ovfl", &pfm_sysctl.debug_ovfl, sizeof(int), 0666, NULL, &proc_dointvec, NULL,},
-	{3, "fastctxsw", &pfm_sysctl.fastctxsw, sizeof(int), 0600, NULL, &proc_dointvec, NULL,},
-	{4, "expert_mode", &pfm_sysctl.expert_mode, sizeof(int), 0600, NULL, &proc_dointvec, NULL,},
-	{ 0, },
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "debug",
+		.data		= &pfm_sysctl.debug,
+		.maxlen		= sizeof(int),
+		.mode		= 0666,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "debug_ovfl",
+		.data		= &pfm_sysctl.debug_ovfl,
+		.maxlen		= sizeof(int),
+		.mode		= 0666,
+		.proc_handler	= &proc_dointvec,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "fastctxsw",
+		.data		= &pfm_sysctl.fastctxsw,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	=  &proc_dointvec,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "expert_mode",
+		.data		= &pfm_sysctl.expert_mode,
+		.maxlen		= sizeof(int),
+		.mode		= 0600,
+		.proc_handler	= &proc_dointvec,
+	},
+	{}
 };
 static ctl_table pfm_sysctl_dir[] = {
-	{1, "perfmon", NULL, 0, 0755, pfm_ctl_table, },
- 	{0,},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname	= "perfmon",
+		.mode		= 0755,
+		.child		= pfm_ctl_table,
+	},
+ 	{}
 };
 static ctl_table pfm_sysctl_root[] = {
-	{1, "kernel", NULL, 0, 0755, pfm_sysctl_dir, },
- 	{0,},
+	{
+		.ctl_name	= CTL_KERN,
+		.procname	= "kernel",
+		.mode		= 0755,
+		.child		= pfm_sysctl_dir,
+	},
+ 	{}
 };
 static struct ctl_table_header *pfm_sysctl_header;
 
@@ -621,7 +659,7 @@ EXPORT_PER_CPU_SYMBOL_GPL(pfm_syst_info);
 
 
 /* forward declaration */
-static struct file_operations pfm_file_ops;
+static const struct file_operations pfm_file_ops;
 
 /*
  * forward declarations
@@ -2126,7 +2164,7 @@ pfm_no_open(struct inode *irrelevant, struct file *dontcare)
 
 
 
-static struct file_operations pfm_file_ops = {
+static const struct file_operations pfm_file_ops = {
 	.llseek   = no_llseek,
 	.read     = pfm_read,
 	.write    = pfm_write,
@@ -2261,7 +2299,7 @@ pfm_remap_buffer(struct vm_area_struct *vma, unsigned long buf, unsigned long ad
  * allocate a sampling buffer and remaps it into the user address space of the task
  */
 static int
-pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)
+pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)
 {
 	struct mm_struct *mm = task->mm;
 	struct vm_area_struct *vma = NULL;
@@ -2311,6 +2349,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
 	 * partially initialize the vma for the sampling buffer
 	 */
 	vma->vm_mm	     = mm;
+	vma->vm_file	     = filp;
 	vma->vm_flags	     = VM_READ| VM_MAYREAD |VM_RESERVED;
 	vma->vm_page_prot    = PAGE_READONLY; /* XXX may need to change */
 
@@ -2349,6 +2388,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
 		goto error;
 	}
 
+	get_file(filp);
+
 	/*
 	 * now insert the vma in the vm list for the process, must be
 	 * done with mmap lock held
@@ -2426,7 +2467,7 @@ pfarg_is_sane(struct task_struct *task, pfarg_context_t *pfx)
 }
 
 static int
-pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int ctx_flags,
+pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned int ctx_flags,
 		     unsigned int cpu, pfarg_context_t *arg)
 {
 	pfm_buffer_fmt_t *fmt = NULL;
@@ -2467,7 +2508,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int
 		/*
 		 * buffer is always remapped into the caller's address space
 		 */
-		ret = pfm_smpl_buffer_alloc(current, ctx, size, &uaddr);
+		ret = pfm_smpl_buffer_alloc(current, filp, ctx, size, &uaddr);
 		if (ret) goto error;
 
 		/* keep track of user address of buffer */
@@ -2678,7 +2719,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 	 * does the user want to sample?
 	 */
 	if (pfm_uuid_cmp(req->ctx_smpl_buf_id, pfm_null_uuid)) {
-		ret = pfm_setup_buffer_fmt(current, ctx, ctx_flags, 0, req);
+		ret = pfm_setup_buffer_fmt(current, filp, ctx, ctx_flags, 0, req);
 		if (ret) goto buffer_error;
 	}
 
@@ -6596,7 +6637,7 @@ found:
 	return 0;
 }
 
-static struct file_operations pfm_proc_fops = {
+static const struct file_operations pfm_proc_fops = {
 	.open		= pfm_proc_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -6688,7 +6729,7 @@ pfm_init(void)
 	/*
 	 * create /proc/sys/kernel/perfmon (for debugging purposes)
 	 */
-	pfm_sysctl_header = register_sysctl_table(pfm_sysctl_root, 0);
+	pfm_sysctl_header = register_sysctl_table(pfm_sysctl_root);
 
 	/*
 	 * initialize all our spinlocks