lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add a bunch of cycle_kernel_lock() calls

Browse Source 
All of the open() functions which don't need the BKL on their face may
still depend on its acquisition to serialize opens against driver
initialization.  So make those functions acquire then release the BKL to be
on the safe side.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet
2008-05-18 15:32:43 -06:00
parent 0b28067688
commit f2b9857eee
21 changed files with 45 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/infiniband/core/ucm.c
View File

@ -45,6 +45,7 @@
#include <linux/cdev.h>
#include <linux/idr.h>
#include <linux/mutex.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h>
@ -1155,11 +1156,11 @@ static unsigned int ib_ucm_poll(struct file *filp,
return mask;
}
/* No BKL needed here: no global resources used */
static int ib_ucm_open(struct inode *inode, struct file *filp)
{
struct ib_ucm_file *file;
cycle_kernel_lock();
file = kmalloc(sizeof(*file), GFP_KERNEL);
if (!file)
return -ENOMEM;