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authorHugh Dickins <hugh@veritas.com>2006-02-14 13:52:59 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-14 16:09:33 -0800
commit16bf134840da3920ded1290973c56ec214636f12 (patch)
tree1aacddb873bd383030a65e13e78c2ced38edfa23
parentd98c7a09843621f1b145ca5ae8ed03ff04085edb (diff)
downloadop-kernel-dev-16bf134840da3920ded1290973c56ec214636f12.zip
op-kernel-dev-16bf134840da3920ded1290973c56ec214636f12.tar.gz
[PATCH] compound page: no access_process_vm check
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@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--kernel/ptrace.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 5f33cdb..d2cf144 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -242,8 +242,7 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in
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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