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Diffstat (limited to 'arch/ia64/kernel/perfmon.c')
-rw-r--r--arch/ia64/kernel/perfmon.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index df257002950e..971f166873aa 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2260,13 +2260,13 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
* now we atomically find some area in the address space and
* remap the buffer in it.
*/
- down_write(&task->mm->mmap_sem);
+ mmap_write_lock(task->mm);
/* find some free area in address space, must have mmap sem held */
vma->vm_start = get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS);
if (IS_ERR_VALUE(vma->vm_start)) {
DPRINT(("Cannot find unmapped area for size %ld\n", size));
- up_write(&task->mm->mmap_sem);
+ mmap_write_unlock(task->mm);
goto error;
}
vma->vm_end = vma->vm_start + size;
@@ -2277,7 +2277,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
/* can only be applied to current task, need to have the mm semaphore held when called */
if (pfm_remap_buffer(vma, (unsigned long)smpl_buf, vma->vm_start, size)) {
DPRINT(("Can't remap buffer\n"));
- up_write(&task->mm->mmap_sem);
+ mmap_write_unlock(task->mm);
goto error;
}
@@ -2288,7 +2288,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
insert_vm_struct(mm, vma);
vm_stat_account(vma->vm_mm, vma->vm_flags, vma_pages(vma));
- up_write(&task->mm->mmap_sem);
+ mmap_write_unlock(task->mm);
/*
* keep track of user level virtual address