From f52111b1546943545e67573c4dde1c7613ca33d3 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 8 May 2008 18:19:16 -0400 Subject: [PATCH] take init_files to fs/file.c Signed-off-by: Al Viro --- include/linux/init_task.h | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) (limited to 'include/linux/init_task.h') diff --git a/include/linux/init_task.h b/include/linux/init_task.h index b24c2875aa05..9927a88674a3 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -1,7 +1,6 @@ #ifndef _LINUX__INIT_TASK_H #define _LINUX__INIT_TASK_H -#include #include #include #include @@ -12,27 +11,7 @@ #include #include -#define INIT_FDTABLE \ -{ \ - .max_fds = NR_OPEN_DEFAULT, \ - .fd = &init_files.fd_array[0], \ - .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \ - .open_fds = (fd_set *)&init_files.open_fds_init, \ - .rcu = RCU_HEAD_INIT, \ - .next = NULL, \ -} - -#define INIT_FILES \ -{ \ - .count = ATOMIC_INIT(1), \ - .fdt = &init_files.fdtab, \ - .fdtab = INIT_FDTABLE, \ - .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \ - .next_fd = 0, \ - .close_on_exec_init = { { 0, } }, \ - .open_fds_init = { { 0, } }, \ - .fd_array = { NULL, } \ -} +extern struct files_struct init_files; #define INIT_KIOCTX(name, which_mm) \ { \ -- cgit v1.2.3 From f470021adb9190819c03d6d8c5c860a17480aa6d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 24 Mar 2008 18:36:23 -0700 Subject: ptrace children revamp ptrace no longer fiddles with the children/sibling links, and the old ptrace_children list is gone. Now ptrace, whether of one's own children or another's via PTRACE_ATTACH, just uses the new ptraced list instead. There should be no user-visible difference that matters. The only change is the order in which do_wait() sees multiple stopped children and stopped ptrace attachees. Since wait_task_stopped() was changed earlier so it no longer reorders the children list, we already know this won't cause any new problems. Signed-off-by: Roland McGrath --- include/linux/init_task.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/init_task.h') diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 9927a88674a3..93c45acf249a 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -140,8 +140,8 @@ extern struct group_info init_groups; .nr_cpus_allowed = NR_CPUS, \ }, \ .tasks = LIST_HEAD_INIT(tsk.tasks), \ - .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ - .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ + .ptraced = LIST_HEAD_INIT(tsk.ptraced), \ + .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \ .real_parent = &tsk, \ .parent = &tsk, \ .children = LIST_HEAD_INIT(tsk.children), \ -- cgit v1.2.3 From 7b34e4283c685f5cc6ba6d30e939906eee0d4bcf Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Fri, 25 Jul 2008 01:47:37 -0700 Subject: introduce PF_KTHREAD flag Introduce the new PF_KTHREAD flag to mark the kernel threads. It is set by INIT_TASK() and copied to the forked childs (we could set it in kthreadd() along with PF_NOFREEZE instead). daemonize() was changed as well. In that case testing of PF_KTHREAD is racy, but daemonize() is hopeless anyway. This flag is cleared in do_execve(), before search_binary_handler(). Probably not the best place, we can do this in exec_mmap() or in start_thread(), or clear it along with PF_FORKNOEXEC. But I think this doesn't matter in practice, and if do_execve() fails kthread should die soon. Signed-off-by: Oleg Nesterov Cc: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/init_task.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/init_task.h') diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 93c45acf249a..021d8e720c79 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -122,7 +122,7 @@ extern struct group_info init_groups; .state = 0, \ .stack = &init_thread_info, \ .usage = ATOMIC_INIT(2), \ - .flags = 0, \ + .flags = PF_KTHREAD, \ .lock_depth = -1, \ .prio = MAX_PRIO-20, \ .static_prio = MAX_PRIO-20, \ -- cgit v1.2.3