From 35834ca1e4bda56d252aa2024a283d631f0e5ac6 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Thu, 18 Oct 2007 03:05:31 -0700 Subject: [PATCH 1/1] sysctl: simplify the pty sysctl logic Instead of having a bunch of ifdefs in sysctl.c move all of the pty sysctl logic into drivers/char/pty.c As well as cleaning up the logic this prevents sysctl_check_table from complaining that the root table has a NULL data pointer on something with generic methods. Signed-off-by: Eric W. Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/pty.c | 24 +++++++++++++++++++++++- kernel/sysctl.c | 11 ----------- 2 files changed, 23 insertions(+), 12 deletions(-) diff --git a/drivers/char/pty.c b/drivers/char/pty.c index 73de77105f..706ff34728 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -318,7 +318,7 @@ int pty_limit = NR_UNIX98_PTY_DEFAULT; static int pty_limit_min = 0; static int pty_limit_max = NR_UNIX98_PTY_MAX; -ctl_table pty_table[] = { +static struct ctl_table pty_table[] = { { .ctl_name = PTY_MAX, .procname = "max", @@ -340,6 +340,27 @@ ctl_table pty_table[] = { } }; +static struct ctl_table pty_kern_table[] = { + { + .ctl_name = KERN_PTY, + .procname = "pty", + .mode = 0555, + .child = pty_table, + }, + {} +}; + +static struct ctl_table pty_root_table[] = { + { + .ctl_name = CTL_KERN, + .procname = "kernel", + .mode = 0555, + .child = pty_kern_table, + }, + {} +}; + + static int pty_unix98_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { @@ -404,6 +425,7 @@ static void __init unix98_pty_init(void) panic("Couldn't register Unix98 pts driver"); pty_table[1].data = &ptm_driver->refcount; + register_sysctl_table(pty_root_table); } #else static inline void unix98_pty_init(void) { } diff --git a/kernel/sysctl.c b/kernel/sysctl.c index bed6cdb3e4..0278f52c4b 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -163,9 +163,6 @@ static struct ctl_table fs_table[]; static struct ctl_table debug_table[]; static struct ctl_table dev_table[]; extern struct ctl_table random_table[]; -#ifdef CONFIG_UNIX98_PTYS -extern struct ctl_table pty_table[]; -#endif #ifdef CONFIG_INOTIFY_USER extern struct ctl_table inotify_table[]; #endif @@ -534,14 +531,6 @@ static struct ctl_table kern_table[] = { .mode = 0555, .child = random_table, }, -#ifdef CONFIG_UNIX98_PTYS - { - .ctl_name = KERN_PTY, - .procname = "pty", - .mode = 0555, - .child = pty_table, - }, -#endif { .ctl_name = KERN_OVERFLOWUID, .procname = "overflowuid", -- 2.20.1