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Commit 6c111d88 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Jonathan Corbet
Browse files

vmcp: BKL pushdown 



Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent ffe83733

drivers/s390/char/vmcp.c

+4 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/kernel.h>

#include <linux/miscdevice.h>

#include <linux/module.h>

#include <linux/smp_lock.h>

#include <asm/cpcmd.h>

#include <asm/debug.h>

#include <asm/uaccess.h>
@@ -39,11 +40,14 @@ static int vmcp_open(struct inode *inode, struct file *file) 
	session = kmalloc(sizeof(*session), GFP_KERNEL);

	if (!session)

		return -ENOMEM;



	lock_kernel();

	session->bufsize = PAGE_SIZE;

	session->response = NULL;

	session->resp_size = 0;

	mutex_init(&session->mutex);

	file->private_data = session;

	unlock_kernel();

	return nonseekable_open(inode, file);

}