Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] kexec: Use EFI_LOADER_DATA for ELF core header
  [IA64] permon use-after-free fix
  [IA64] sync compat getdents
  [IA64] always build arch/ia64/lib/xor.o
  [IA64] Remove stack hard limit on ia64
  [IA64] point saved_max_pfn to the max_pfn of the entire system
  Revert "[IA64] swiotlb abstraction (e.g. for Xen)"

1 files changed, 7 insertions, 4 deletions

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 9ddf896a137..abc7ad03588 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2299,7 +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;
@@ -2349,6 +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 */
 
@@ -2387,6 +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
@@ -2464,7 +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;
@@ -2505,7 +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 */
@@ -2716,7 +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;
 	}