perfmon: kill some helpers and arguments

pfm_vm_munmap() is simply vm_munmap() and pfm_remove_smpl_mapping()
always get current as the first argument.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 2777310..899c0fa 100644 (file)
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f)
        spin_unlock(&(x)->ctx_lock);
 }
 
-static inline unsigned int
-pfm_vm_munmap(struct mm_struct *mm, unsigned long addr, size_t len)
-{
-       return vm_munmap(mm, addr, len);
-}
-
 static inline unsigned long 
 pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec)
 {
@@ -1458,8 +1452,9 @@ pfm_unreserve_session(pfm_context_t *ctx, int is_syswide, unsigned int cpu)
  * a PROTECT_CTX() section.
  */
 static int
-pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long size)
+pfm_remove_smpl_mapping(void *vaddr, unsigned long size)
 {
+       struct task_struct *task = current;
        int r;
 
        /* sanity checks */
@@ -1473,7 +1468,7 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz
        /*
         * does the actual unmapping
         */
-       r = pfm_vm_munmap(task->mm, (unsigned long)vaddr, size);
+       r = vm_munmap(current->mm, (unsigned long)vaddr, size);
 
        if (r !=0) {
                printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size);
@@ -1940,7 +1935,7 @@ pfm_flush(struct file *filp, fl_owner_t id)
         * because some VM function reenables interrupts.
         *
         */
-       if (smpl_buf_vaddr) pfm_remove_smpl_mapping(current, smpl_buf_vaddr, smpl_buf_size);
+       if (smpl_buf_vaddr) pfm_remove_smpl_mapping(smpl_buf_vaddr, smpl_buf_size);
 
        return 0;
 }