[PATCH 3/3] compound page: no access_process_vm check

[Hugh Dickins]

The PageCompound check before access_process_vm's set_page_dirty_lock is
no longer necessary, so remove it.  But leave the PageCompound checks in
bio_set_pages_dirty, dio_bio_complete and nfs_free_user_pages: at least
some of those were introduced as a little optimization on hugetlb pages.

Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx>
---

 kernel/ptrace.c |    3 +--
 1 files changed, 1 insertion(+), 2 deletions(-)

--- 2.6.16-rc2-git11/kernel/ptrace.c	2006-02-03 09:32:51.000000000 +0000
+++ 2.6.16-rc2-git11+/kernel/ptrace.c	2006-02-10 20:07:05.000000000 +0000
@@ -242,8 +242,7 @@ int access_process_vm(struct task_struct
 		if (write) {
 			copy_to_user_page(vma, page, addr,
 					  maddr + offset, buf, bytes);
-			if (!PageCompound(page))
-				set_page_dirty_lock(page);
+			set_page_dirty_lock(page);
 		} else {
 			copy_from_user_page(vma, page, addr,
 					    buf, maddr + offset, bytes);
-
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