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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 15:01:10 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-24 15:01:10 (GMT)
commitf13771187b9423b824f32518319f6da85d819003 (patch)
treec431cf16c286065a302d5f3fb43fc1abac7e4047 /drivers/char/raw.c
parent15953654cc312429740fd58fb37a5a3d63a54376 (diff)
parent9f37af654fda88a8dcca74c785f6c20e52758866 (diff)
downloadlinux-fsl-qoriq-f13771187b9423b824f32518319f6da85d819003.tar.xz
Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing
* 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: uml: Pushdown the bkl from harddog_kern ioctl sunrpc: Pushdown the bkl from sunrpc cache ioctl sunrpc: Pushdown the bkl from ioctl autofs4: Pushdown the bkl from ioctl uml: Convert to unlocked_ioctls to remove implicit BKL ncpfs: BKL ioctl pushdown coda: Clean-up whitespace problems in pioctl.c coda: BKL ioctl pushdown drivers: Push down BKL into various drivers isdn: Push down BKL into ioctl functions scsi: Push down BKL into ioctl functions dvb: Push down BKL into ioctl functions smbfs: Push down BKL into ioctl function coda/psdev: Remove BKL from ioctl function um/mmapper: Remove BKL usage sn_hwperf: Kill BKL usage hfsplus: Push down BKL into ioctl function
Diffstat (limited to 'drivers/char/raw.c')
-rw-r--r--drivers/char/raw.c42
1 files changed, 24 insertions, 18 deletions
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 8756ab0..b38942f 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -121,13 +121,17 @@ static int raw_release(struct inode *inode, struct file *filp)
/*
* Forward ioctls to the underlying block device.
*/
-static int
-raw_ioctl(struct inode *inode, struct file *filp,
- unsigned int command, unsigned long arg)
+static long
+raw_ioctl(struct file *filp, unsigned int command, unsigned long arg)
{
struct block_device *bdev = filp->private_data;
+ int ret;
+
+ lock_kernel();
+ ret = blkdev_ioctl(bdev, 0, command, arg);
+ unlock_kernel();
- return blkdev_ioctl(bdev, 0, command, arg);
+ return ret;
}
static void bind_device(struct raw_config_request *rq)
@@ -141,13 +145,14 @@ static void bind_device(struct raw_config_request *rq)
* Deal with ioctls against the raw-device control interface, to bind
* and unbind other raw devices.
*/
-static int raw_ctl_ioctl(struct inode *inode, struct file *filp,
- unsigned int command, unsigned long arg)
+static long raw_ctl_ioctl(struct file *filp, unsigned int command,
+ unsigned long arg)
{
struct raw_config_request rq;
struct raw_device_data *rawdev;
int err = 0;
+ lock_kernel();
switch (command) {
case RAW_SETBIND:
case RAW_GETBIND:
@@ -240,25 +245,26 @@ static int raw_ctl_ioctl(struct inode *inode, struct file *filp,
break;
}
out:
+ unlock_kernel();
return err;
}
static const struct file_operations raw_fops = {
- .read = do_sync_read,
- .aio_read = generic_file_aio_read,
- .write = do_sync_write,
- .aio_write = blkdev_aio_write,
- .fsync = blkdev_fsync,
- .open = raw_open,
- .release= raw_release,
- .ioctl = raw_ioctl,
- .owner = THIS_MODULE,
+ .read = do_sync_read,
+ .aio_read = generic_file_aio_read,
+ .write = do_sync_write,
+ .aio_write = blkdev_aio_write,
+ .fsync = blkdev_fsync,
+ .open = raw_open,
+ .release = raw_release,
+ .unlocked_ioctl = raw_ioctl,
+ .owner = THIS_MODULE,
};
static const struct file_operations raw_ctl_fops = {
- .ioctl = raw_ctl_ioctl,
- .open = raw_open,
- .owner = THIS_MODULE,
+ .unlocked_ioctl = raw_ctl_ioctl,
+ .open = raw_open,
+ .owner = THIS_MODULE,
};
static struct cdev raw_cdev;