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authorOleg Nesterov <oleg@tv-sign.ru>2008-04-30 03:53:14 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 11:29:38 -0400
commit68cb94786630b34196713794a2880ade17fca887 (patch)
tree78bd2d66aaaa2c9acdd6060a9a9964420c511ebc
parent53b6f9fbd3b63af14b4f6268e8b5b80d178d05bc (diff)
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>
-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)
73 BUG_ON(!child->ptrace); 73 BUG_ON(!child->ptrace);
74 74
75 child->ptrace = 0; 75 child->ptrace = 0;
76 if (!list_empty(&child->ptrace_list)) { 76 if (ptrace_reparented(child)) {
77 list_del_init(&child->ptrace_list); 77 list_del_init(&child->ptrace_list);
78 remove_parent(child); 78 remove_parent(child);
79 child->parent = child->real_parent; 79 child->parent = child->real_parent;