Commit c2f98050 authored Mar 30, 2010 by Frederic Weisbecker

procfs: Kill the bkl in ioctl



There are no more users of procfs that implement the ioctl
callback. Drop the bkl from this path and warn on any use
of this callback.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: John Kacur <jkacur@redhat.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>

parent d79b6f4d

fs/proc/inode.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -231,9 +231,9 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne
		if (rv == -ENOIOCTLCMD)
		rv = -EINVAL;
		} else if (ioctl) {
		lock_kernel();
		WARN_ONCE(1, "Procfs ioctl handlers must use unlocked_ioctl, "
		"%pf will be called without the Bkl held\n", ioctl);
		rv = ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
		unlock_kernel();
		}

		pde_users_dec(pde);