From ee00560c7dac1dbbf048446a8489550d0a5765b7 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Fri, 23 Mar 2012 15:02:43 -0700 Subject: ptrace: remove PTRACE_SEIZE_DEVEL bit PTRACE_SEIZE code is tested and ready for production use, remove the code which requires special bit in data argument to make PTRACE_SEIZE work. Strace team prepares for a new release of strace, and we would like to ship the code which uses PTRACE_SEIZE, preferably after this change goes into released kernel. Signed-off-by: Denys Vlasenko Acked-by: Tejun Heo Acked-by: Oleg Nesterov Cc: Pedro Alves Cc: Jan Kratochvil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/ptrace.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'kernel') diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 4661c5b..ee8d49b 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -237,25 +237,10 @@ static int ptrace_attach(struct task_struct *task, long request, bool seize = (request == PTRACE_SEIZE); int retval; - /* - * SEIZE will enable new ptrace behaviors which will be implemented - * gradually. SEIZE_DEVEL bit is used to prevent applications - * expecting full SEIZE behaviors trapping on kernel commits which - * are still in the process of implementing them. - * - * Only test programs for new ptrace behaviors being implemented - * should set SEIZE_DEVEL. If unset, SEIZE will fail with -EIO. - * - * Once SEIZE behaviors are completely implemented, this flag - * will be removed. - */ retval = -EIO; if (seize) { if (addr != 0) goto out; - if (!(flags & PTRACE_SEIZE_DEVEL)) - goto out; - flags &= ~(unsigned long)PTRACE_SEIZE_DEVEL; if (flags & ~(unsigned long)PTRACE_O_MASK) goto out; flags = PT_PTRACED | PT_SEIZED | (flags << PT_OPT_FLAG_SHIFT); -- cgit v1.1