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| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-04-30 00:53:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:38 -0700 |
| commit | 53b6f9fbd3b63af14b4f6268e8b5b80d178d05bc (patch) | |
| tree | 93a5bd26974e07a3d7fa20dc17c8b70daacc1d85 /include/linux/ptrace.h | |
| parent | 2800d8d19e51414403df8144eaa214bb03400b87 (diff) | |
| download | lwn-53b6f9fbd3b63af14b4f6268e8b5b80d178d05bc.tar.gz lwn-53b6f9fbd3b63af14b4f6268e8b5b80d178d05bc.zip | |
ptrace: introduce ptrace_reparented() helper
Add another trivial helper for the sake of grep. It also auto-documents the
fact that ->parent != real_parent implies ->ptrace.
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 'include/linux/ptrace.h')
| -rw-r--r-- | include/linux/ptrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index ebe0c17039cf..f98501ba557e 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -98,6 +98,10 @@ extern void ptrace_untrace(struct task_struct *child); extern int ptrace_may_attach(struct task_struct *task); extern int __ptrace_may_attach(struct task_struct *task); +static inline int ptrace_reparented(struct task_struct *child) +{ + return child->real_parent != child->parent; +} static inline void ptrace_link(struct task_struct *child, struct task_struct *new_parent) { |