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authorOleg Nesterov <oleg@tv-sign.ru>2008-04-30 09:53:14 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 17:29:38 +0200
commit68cb94786630b34196713794a2880ade17fca887 (patch)
tree78bd2d66aaaa2c9acdd6060a9a9964420c511ebc /kernel
parentptrace: introduce ptrace_reparented() helper (diff)
downloadlinux-68cb94786630b34196713794a2880ade17fca887.tar.xz
linux-68cb94786630b34196713794a2880ade17fca887.zip
ptrace: __ptrace_unlink: use the ptrace_reparented() helper
Currently __ptrace_unlink() checks list_empty(->ptrace_list) to figure out whether the child was reparented. Change the code to use ptrace_reparented() to make this check more explicit and consistent. No functional changes. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/ptrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index dac4b4e57293..ce66d66881fd 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -73,7 +73,7 @@ void __ptrace_unlink(struct task_struct *child)
BUG_ON(!child->ptrace);
child->ptrace = 0;
- if (!list_empty(&child->ptrace_list)) {
+ if (ptrace_reparented(child)) {
list_del_init(&child->ptrace_list);
remove_parent(child);
child->parent = child->real_parent;