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-rw-r--r--arch/cris/arch-v10/drivers/ds1302.c7
-rw-r--r--arch/cris/arch-v10/drivers/pcf8563.c6
-rw-r--r--arch/cris/arch-v10/drivers/sync_serial.c11
-rw-r--r--arch/cris/arch-v32/drivers/cryptocop.c4
-rw-r--r--arch/cris/arch-v32/drivers/mach-a3/gpio.c11
-rw-r--r--arch/cris/arch-v32/drivers/mach-fs/gpio.c11
-rw-r--r--arch/cris/arch-v32/drivers/pcf8563.c6
-rw-r--r--arch/cris/arch-v32/drivers/sync_serial.c11
-rw-r--r--arch/parisc/kernel/perf.c4
-rw-r--r--arch/um/drivers/harddog_kern.c13
-rw-r--r--arch/um/drivers/hostaudio_kern.c12
-rw-r--r--arch/um/drivers/ubd_kern.c11
-rw-r--r--arch/um/kernel/exec.c2
-rw-r--r--drivers/char/hpet.c98
-rw-r--r--drivers/char/raw.c243
-rw-r--r--drivers/char/tlclk.c6
-rw-r--r--drivers/gpu/drm/Kconfig5
-rw-r--r--drivers/media/Kconfig1
-rw-r--r--drivers/media/dvb/bt8xx/dst_ca.c7
-rw-r--r--drivers/media/dvb/dvb-core/dmxdev.c17
-rw-r--r--drivers/media/dvb/dvb-core/dvb_ca_en50221.c8
-rw-r--r--drivers/media/dvb/dvb-core/dvb_net.c9
-rw-r--r--drivers/media/dvb/dvb-core/dvbdev.c17
-rw-r--r--drivers/media/video/dabusb.c18
-rw-r--r--drivers/net/appletalk/Kconfig1
-rw-r--r--drivers/pnp/isapnp/proc.c15
-rw-r--r--drivers/s390/block/dasd.c6
-rw-r--r--drivers/s390/block/dasd_ioctl.c17
-rw-r--r--drivers/s390/block/dcssblk.c5
-rw-r--r--drivers/staging/cx25821/Kconfig1
-rw-r--r--drivers/staging/easycap/Kconfig1
-rw-r--r--drivers/staging/go7007/Kconfig1
-rw-r--r--drivers/staging/usbip/Kconfig2
-rw-r--r--fs/Kconfig1
-rw-r--r--fs/adfs/Kconfig1
-rw-r--r--fs/autofs/Kconfig1
-rw-r--r--fs/compat_ioctl.c70
-rw-r--r--fs/hpfs/Kconfig1
-rw-r--r--fs/nfs/Kconfig1
-rw-r--r--fs/nfsd/Kconfig1
-rw-r--r--fs/smbfs/Kconfig1
-rw-r--r--fs/udf/Kconfig1
-rw-r--r--fs/ufs/Kconfig1
-rw-r--r--include/linux/smp_lock.h7
-rw-r--r--init/Kconfig2
-rw-r--r--init/main.c2
-rw-r--r--kernel/rtmutex-tester.c6
-rw-r--r--kernel/trace/blktrace.c14
-rw-r--r--lib/Kconfig.debug9
-rw-r--r--net/ipx/Kconfig1
-rw-r--r--net/sunrpc/cache.c15
-rw-r--r--net/sunrpc/rpc_pipe.c26
-rw-r--r--net/x25/Kconfig1
53 files changed, 347 insertions, 402 deletions
diff --git a/arch/cris/arch-v10/drivers/ds1302.c b/arch/cris/arch-v10/drivers/ds1302.c
index 884275629ef..4b92ad08b0f 100644
--- a/arch/cris/arch-v10/drivers/ds1302.c
+++ b/arch/cris/arch-v10/drivers/ds1302.c
@@ -19,7 +19,7 @@
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <linux/delay.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/bcd.h>
#include <linux/capability.h>
@@ -34,6 +34,7 @@
#define RTC_MAJOR_NR 121 /* local major, change later */
+static DEFINE_MUTEX(ds1302_mutex);
static const char ds1302_name[] = "ds1302";
/* The DS1302 might be connected to different bits on different products.
@@ -357,9 +358,9 @@ static long rtc_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned lon
{
int ret;
- lock_kernel();
+ mutex_lock(&ds1302_mutex);
ret = rtc_ioctl(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&ds1302_mutex);
return ret;
}
diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c
index 7dcb1f85f42..2f1ddedca2b 100644
--- a/arch/cris/arch-v10/drivers/pcf8563.c
+++ b/arch/cris/arch-v10/drivers/pcf8563.c
@@ -27,7 +27,6 @@
#include <linux/delay.h>
#include <linux/bcd.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -49,6 +48,7 @@
#define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
#define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
+static DEFINE_MUTEX(pcf8563_mutex);
static DEFINE_MUTEX(rtc_lock); /* Protect state etc */
static const unsigned char days_in_month[] =
@@ -343,9 +343,9 @@ static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned
{
int ret;
- lock_kernel();
+ mutex_lock(&pcf8563_mutex);
return pcf8563_ioctl(filp, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&pcf8563_mutex);
return ret;
}
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index ee2dd4323da..3d9fa074a94 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -20,7 +20,7 @@
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/timer.h>
#include <asm/irq.h>
#include <asm/dma.h>
@@ -149,6 +149,7 @@ struct sync_port {
};
+static DEFINE_MUTEX(sync_serial_mutex);
static int etrax_sync_serial_init(void);
static void initialize_port(int portnbr);
static inline int sync_data_avail(struct sync_port *port);
@@ -445,7 +446,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
int mode;
int err = -EBUSY;
- lock_kernel();
+ mutex_lock(&sync_serial_mutex);
DEBUG(printk(KERN_DEBUG "Open sync serial port %d\n", dev));
if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled) {
@@ -626,7 +627,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
ret = 0;
out:
- unlock_kernel();
+ mutex_unlock(&sync_serial_mutex);
return ret;
}
@@ -961,9 +962,9 @@ static long sync_serial_ioctl(struct file *file,
{
long ret;
- lock_kernel();
+ mutex_lock(&sync_serial_mutex);
ret = sync_serial_ioctl_unlocked(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&sync_serial_mutex);
return ret;
}
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index b07646a3050..0973d5a2780 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -3139,9 +3139,9 @@ cryptocop_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
struct inode *inode = file->f_path.dentry->d_inode;
long ret;
- lock_kernel();
+ mutex_lock(&cryptocop_mutex);
ret = cryptocop_ioctl_unlocked(inode, filp, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&cryptocop_mutex);
return ret;
}
diff --git a/arch/cris/arch-v32/drivers/mach-a3/gpio.c b/arch/cris/arch-v32/drivers/mach-a3/gpio.c
index 2dcd27adbad..50d1885c479 100644
--- a/arch/cris/arch-v32/drivers/mach-a3/gpio.c
+++ b/arch/cris/arch-v32/drivers/mach-a3/gpio.c
@@ -23,7 +23,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <asm/etraxgpio.h>
#include <hwregs/reg_map.h>
@@ -66,6 +66,7 @@ static int dp_cnt;
#define DP(x)
#endif
+static DEFINE_MUTEX(gpio_mutex);
static char gpio_name[] = "etrax gpio";
#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
@@ -391,7 +392,7 @@ static int gpio_open(struct inode *inode, struct file *filp)
if (!priv)
return -ENOMEM;
- lock_kernel();
+ mutex_lock(&gpio_mutex);
memset(priv, 0, sizeof(*priv));
priv->minor = p;
@@ -414,7 +415,7 @@ static int gpio_open(struct inode *inode, struct file *filp)
spin_unlock_irq(&gpio_lock);
}
- unlock_kernel();
+ mutex_unlock(&gpio_mutex);
return 0;
}
@@ -667,9 +668,9 @@ static long gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
- lock_kernel();
+ mutex_lock(&gpio_mutex);
ret = gpio_ioctl_unlocked(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&gpio_mutex);
return ret;
}
diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
index 5ec8a7d4e7d..de8dca0550f 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c
@@ -22,7 +22,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <asm/etraxgpio.h>
#include <hwregs/reg_map.h>
@@ -64,6 +64,7 @@ static int dp_cnt;
#define DP(x)
#endif
+static DEFINE_MUTEX(gpio_mutex);
static char gpio_name[] = "etrax gpio";
#if 0
@@ -429,7 +430,7 @@ gpio_open(struct inode *inode, struct file *filp)
if (!priv)
return -ENOMEM;
- lock_kernel();
+ mutex_lock(&gpio_mutex);
memset(priv, 0, sizeof(*priv));
priv->minor = p;
@@ -450,7 +451,7 @@ gpio_open(struct inode *inode, struct file *filp)
alarmlist = priv;
spin_unlock_irq(&alarm_lock);
- unlock_kernel();
+ mutex_unlock(&gpio_mutex);
return 0;
}
@@ -708,9 +709,9 @@ static long gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
- lock_kernel();
+ mutex_lock(&gpio_mutex);
ret = gpio_ioctl_unlocked(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&gpio_mutex);
return ret;
}
diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c
index bef6eb53b15..bdcac9dec5c 100644
--- a/arch/cris/arch-v32/drivers/pcf8563.c
+++ b/arch/cris/arch-v32/drivers/pcf8563.c
@@ -24,7 +24,6 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/ioctl.h>
-#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <linux/bcd.h>
#include <linux/mutex.h>
@@ -45,6 +44,7 @@
#define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
#define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
+static DEFINE_MUTEX(pcf8563_mutex);
static DEFINE_MUTEX(rtc_lock); /* Protect state etc */
static const unsigned char days_in_month[] =
@@ -339,9 +339,9 @@ static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned
{
int ret;
- lock_kernel();
+ mutex_lock(&pcf8563_mutex);
return pcf8563_ioctl(filp, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&pcf8563_mutex);
return ret;
}
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index ca248f3adb8..a01ae9f3b81 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -13,7 +13,7 @@
#include <linux/errno.h>
#include <linux/major.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/init.h>
@@ -145,6 +145,7 @@ typedef struct sync_port
spinlock_t lock;
} sync_port;
+static DEFINE_MUTEX(sync_serial_mutex);
static int etrax_sync_serial_init(void);
static void initialize_port(int portnbr);
static inline int sync_data_avail(struct sync_port *port);
@@ -434,7 +435,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
reg_dma_rw_cfg cfg = {.en = regk_dma_yes};
reg_dma_rw_intr_mask intr_mask = {.data = regk_dma_yes};
- lock_kernel();
+ mutex_lock(&sync_serial_mutex);
DEBUG(printk(KERN_DEBUG "Open sync serial port %d\n", dev));
if (dev < 0 || dev >= NBR_PORTS || !ports[dev].enabled)
@@ -583,7 +584,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
port->busy++;
ret = 0;
out:
- unlock_kernel();
+ mutex_unlock(&sync_serial_mutex);
return ret;
}
@@ -966,9 +967,9 @@ static long sync_serial_ioctl(struct file *file,
{
long ret;
- lock_kernel();
+ mutex_lock(&sync_serial_mutex);
ret = sync_serial_ioctl_unlocked(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&sync_serial_mutex);
return ret;
}
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index f9f6783e4bd..ba0c053e25a 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -46,7 +46,6 @@
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
@@ -261,16 +260,13 @@ printk("Preparing to start counters\n");
*/
static int perf_open(struct inode *inode, struct file *file)
{
- lock_kernel();
spin_lock(&perf_lock);
if (perf_enabled) {
spin_unlock(&perf_lock);
- unlock_kernel();
return -EBUSY;
}
perf_enabled = 1;
spin_unlock(&perf_lock);
- unlock_kernel();
return 0;
}
diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c
index cfcac1ff4cf..86036276020 100644
--- a/arch/um/drivers/harddog_kern.c
+++ b/arch/um/drivers/harddog_kern.c
@@ -42,7 +42,7 @@
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/reboot.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
@@ -50,6 +50,7 @@
MODULE_LICENSE("GPL");
+static DEFINE_MUTEX(harddog_mutex);
static DEFINE_SPINLOCK(lock);
static int timer_alive;
static int harddog_in_fd = -1;
@@ -66,7 +67,7 @@ static int harddog_open(struct inode *inode, struct file *file)
int err = -EBUSY;
char *sock = NULL;
- lock_kernel();
+ mutex_lock(&harddog_mutex);
spin_lock(&lock);
if(timer_alive)
goto err;
@@ -83,11 +84,11 @@ static int harddog_open(struct inode *inode, struct file *file)
timer_alive = 1;
spin_unlock(&lock);
- unlock_kernel();
+ mutex_unlock(&harddog_mutex);
return nonseekable_open(inode, file);
err:
spin_unlock(&lock);
- unlock_kernel();
+ mutex_unlock(&harddog_mutex);
return err;
}
@@ -153,9 +154,9 @@ static long harddog_ioctl(struct file *file,
{
long ret;
- lock_kernel();
+ mutex_lock(&harddog_mutex);
ret = harddog_ioctl_unlocked(file, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&harddog_mutex);
return ret;
}
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c
index 63c740a85b4..f9f6a4e2059 100644
--- a/arch/um/drivers/hostaudio_kern.c
+++ b/arch/um/drivers/hostaudio_kern.c
@@ -8,7 +8,7 @@
#include "linux/slab.h"
#include "linux/sound.h"
#include "linux/soundcard.h"
-#include "linux/smp_lock.h"
+#include "linux/mutex.h"
#include "asm/uaccess.h"
#include "init.h"
#include "os.h"
@@ -63,6 +63,8 @@ static int set_mixer(char *name, int *add)
__uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP);
#endif
+static DEFINE_MUTEX(hostaudio_mutex);
+
/* /dev/dsp file operations */
static ssize_t hostaudio_read(struct file *file, char __user *buffer,
@@ -198,9 +200,9 @@ static int hostaudio_open(struct inode *inode, struct file *file)
w = 1;
kparam_block_sysfs_write(dsp);
- lock_kernel();
+ mutex_lock(&hostaudio_mutex);
ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
- unlock_kernel();
+ mutex_unlock(&hostaudio_mutex);
kparam_unblock_sysfs_write(dsp);
if (ret < 0) {
@@ -259,9 +261,9 @@ static int hostmixer_open_mixdev(struct inode *inode, struct file *file)
w = 1;
kparam_block_sysfs_write(mixer);
- lock_kernel();
+ mutex_lock(&hostaudio_mutex);
ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
- unlock_kernel();
+ mutex_unlock(&hostaudio_mutex);
kparam_unblock_sysfs_write(mixer);
if (ret < 0) {
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 9734994cba1..ba4a98ba39c 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -33,7 +33,7 @@
#include "linux/mm.h"
#include "linux/slab.h"
#include "linux/vmalloc.h"
-#include "linux/smp_lock.h"
+#include "linux/mutex.h"
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
@@ -100,6 +100,7 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data)
#define DRIVER_NAME "uml-blkdev"
static DEFINE_MUTEX(ubd_lock);
+static DEFINE_MUTEX(ubd_mutex); /* replaces BKL, might not be needed */
static int ubd_open(struct block_device *bdev, fmode_t mode);
static int ubd_release(struct gendisk *disk, fmode_t mode);
@@ -1101,7 +1102,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
struct ubd *ubd_dev = disk->private_data;
int err = 0;
- lock_kernel();
+ mutex_lock(&ubd_mutex);
if(ubd_dev->count == 0){
err = ubd_open_dev(ubd_dev);
if(err){
@@ -1120,7 +1121,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
err = -EROFS;
}*/
out:
- unlock_kernel();
+ mutex_unlock(&ubd_mutex);
return err;
}
@@ -1128,10 +1129,10 @@ static int ubd_release(struct gendisk *disk, fmode_t mode)
{
struct ubd *ubd_dev = disk->private_data;
- lock_kernel();
+ mutex_lock(&ubd_mutex);
if(--ubd_dev->count == 0)
ubd_close_dev(ubd_dev);
- unlock_kernel();
+ mutex_unlock(&ubd_mutex);
return 0;
}
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 49b5e1eb326..340268be00b 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -78,13 +78,11 @@ long sys_execve(const char __user *file, const char __user *const __user *argv,
long error;
char *filename;
- lock_kernel();
filename = getname(file);
error = PTR_ERR(filename);
if (IS_ERR(filename)) goto out;
error = execve1(filename, argv, env);
putname(filename);
out:
- unlock_kernel();
return error;
}
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index a0a1829d319..a4eee324eb1 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -30,6 +30,7 @@
#include <linux/bcd.h>
#include <linux/seq_file.h>
#include <linux/bitops.h>
+#include <linux/compat.h>
#include <linux/clocksource.h>
#include <linux/slab.h>
@@ -67,6 +68,7 @@
#define read_counter(MC) readl(MC)
#endif
+static DEFINE_MUTEX(hpet_mutex); /* replaces BKL */
static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
/* This clocksource driver currently only works on ia64 */
@@ -250,7 +252,7 @@ static int hpet_open(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE)
return -EINVAL;
- lock_kernel();
+ mutex_lock(&hpet_mutex);
spin_lock_irq(&hpet_lock);
for (devp = NULL, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
@@ -264,7 +266,7 @@ static int hpet_open(struct inode *inode, struct file *file)
if (!devp) {
spin_unlock_irq(&hpet_lock);
- unlock_kernel();
+ mutex_unlock(&hpet_mutex);
return -EBUSY;
}
@@ -272,7 +274,7 @@ static int hpet_open(struct inode *inode, struct file *file)
devp->hd_irqdata = 0;
devp->hd_flags |= HPET_OPEN;
spin_unlock_irq(&hpet_lock);
- unlock_kernel();
+ mutex_unlock(&hpet_mutex);
hpet_timer_set_irq(devp);
@@ -429,22 +431,6 @@ static int hpet_release(struct inode *inode, struct file *file)
return 0;
}
-static int hpet_ioctl_common(struct hpet_dev *, int, unsigned long, int);
-
-static long hpet_ioctl(struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct hpet_dev *devp;
- int ret;
-
- devp = file->private_data;
- lock_kernel();
- ret = hpet_ioctl_common(devp, cmd, arg, 0);
- unlock_kernel();
-
- return ret;
-}
-
static int hpet_ioctl_ieon(struct hpet_dev *devp)
{
struct hpet_timer __iomem *timer;
@@ -553,7 +539,8 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
}
static int
-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
+hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
+ struct hpet_info *info)
{
struct hpet_timer __iomem *timer;
struct hpet __iomem *hpet;
@@ -594,23 +581,15 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
break;
case HPET_INFO:
{
- struct hpet_info info;
-
if (devp->hd_ireqfreq)
- info.hi_ireqfreq =
+ info->hi_ireqfreq =
hpet_time_div(hpetp, devp->hd_ireqfreq);
else
- info.hi_ireqfreq = 0;
- info.hi_flags =
+ info->hi_ireqfreq = 0;
+ info->hi_flags =
readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
- info.hi_hpet = hpetp->hp_which;
- info.hi_timer = devp - hpetp->hp_dev;
- if (kernel)
- memcpy((void *)arg, &info, sizeof(info));
- else
- if (copy_to_user((void __user *)arg, &info,
- sizeof(info)))
- err = -EFAULT;
+ info->hi_hpet = hpetp->hp_which;
+ info->hi_timer = devp - hpetp->hp_dev;
break;
}
case HPET_EPI:
@@ -636,7 +615,7 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
devp->hd_flags &= ~HPET_PERIODIC;
break;
case HPET_IRQFREQ:
- if (!kernel && (arg > hpet_max_freq) &&
+ if ((arg > hpet_max_freq) &&
!capable(CAP_SYS_RESOURCE)) {
err = -EACCES;
break;
@@ -653,12 +632,63 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
return err;
}
+static long
+hpet_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct hpet_info info;
+ int err;
+
+ mutex_lock(&hpet_mutex);
+ err = hpet_ioctl_common(file->private_data, cmd, arg, &info);
+ mutex_unlock(&hpet_mutex);
+
+ if ((cmd == HPET_INFO) && !err &&
+ (copy_to_user((void __user *)arg, &info, sizeof(info))))
+ err = -EFAULT;
+
+ return err;
+}
+
+#ifdef CONFIG_COMPAT
+struct compat_hpet_info {
+ compat_ulong_t hi_ireqfreq; /* Hz */
+ compat_ulong_t hi_flags; /* information */
+ unsigned short hi_hpet;
+ unsigned short hi_timer;
+};
+
+static long
+hpet_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct hpet_info info;
+ int err;
+
+ mutex_lock(&hpet_mutex);
+ err = hpet_ioctl_common(file->private_data, cmd, arg, &info);
+ mutex_unlock(&hpet_mutex);
+
+ if ((cmd == HPET_INFO) && !err) {
+ struct compat_hpet_info __user *u = compat_ptr(arg);
+ if (put_user(info.hi_ireqfreq, &u->hi_ireqfreq) ||
+ put_user(info.hi_flags, &u->hi_flags) ||
+ put_user(info.hi_hpet, &u->hi_hpet) ||
+ put_user(info.hi_timer, &u->hi_timer))
+ err = -EFAULT;
+ }
+
+ return err;
+}
+#endif
+
static const struct file_operations hpet_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = hpet_read,
.poll = hpet_poll,
.unlocked_ioctl = hpet_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = hpet_compat_ioctl,
+#endif
.open = hpet_open,
.release = hpet_release,
.fasync = hpet_fasync,
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index b38942f6bf3..24b2b9160aa 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -19,8 +19,8 @@
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
#include <linux/gfp.h>
+#include <linux/compat.h>
#include <asm/uaccess.h>
@@ -55,7 +55,6 @@ static int raw_open(struct inode *inode, struct file *filp)
return 0;
}
- lock_kernel();
mutex_lock(&raw_mutex);
/*
@@ -82,7 +81,6 @@ static int raw_open(struct inode *inode, struct file *filp)
bdev->bd_inode->i_mapping;
filp->private_data = bdev;
mutex_unlock(&raw_mutex);
- unlock_kernel();
return 0;
out2:
@@ -91,7 +89,6 @@ out1:
blkdev_put(bdev, filp->f_mode);
out:
mutex_unlock(&raw_mutex);
- unlock_kernel();
return err;
}
@@ -125,20 +122,84 @@ static long
raw_ioctl(struct file *filp, unsigned int command, unsigned long arg)
{
struct block_device *bdev = filp->private_data;
- int ret;
+ return blkdev_ioctl(bdev, 0, command, arg);
+}
+
+static int bind_set(int number, u64 major, u64 minor)
+{
+ dev_t dev = MKDEV(major, minor);
+ struct raw_device_data *rawdev;
+ int err = 0;
- lock_kernel();
- ret = blkdev_ioctl(bdev, 0, command, arg);
- unlock_kernel();
+ if (number <= 0 || number >= MAX_RAW_MINORS)
+ return -EINVAL;
- return ret;
+ if (MAJOR(dev) != major || MINOR(dev) != minor)
+ return -EINVAL;
+
+ rawdev = &raw_devices[number];
+
+ /*
+ * This is like making block devices, so demand the
+ * same capability
+ */
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ /*
+ * For now, we don't need to check that the underlying
+ * block device is present or not: we can do that when
+ * the raw device is opened. Just check that the
+ * major/minor numbers make sense.
+ */
+
+ if (MAJOR(dev) == 0 && dev != 0)
+ return -EINVAL;
+
+ mutex_lock(&raw_mutex);
+ if (rawdev->inuse) {
+ mutex_unlock(&raw_mutex);
+ return -EBUSY;
+ }
+ if (rawdev->binding) {
+ bdput(rawdev->binding);
+ module_put(THIS_MODULE);
+ }
+ if (!dev) {
+ /* unbind */
+ rawdev->binding = NULL;
+ device_destroy(raw_class, MKDEV(RAW_MAJOR, number));
+ } else {
+ rawdev->binding = bdget(dev);
+ if (rawdev->binding == NULL) {
+ err = -ENOMEM;
+ } else {
+ dev_t raw = MKDEV(RAW_MAJOR, number);
+ __module_get(THIS_MODULE);
+ device_destroy(raw_class, raw);
+ device_create(raw_class, NULL, raw, NULL,
+ "raw%d", number);
+ }
+ }
+ mutex_unlock(&raw_mutex);
+ return err;
}
-static void bind_device(struct raw_config_request *rq)
+static int bind_get(int number, dev_t *dev)
{
- device_destroy(raw_class, MKDEV(RAW_MAJOR, rq->raw_minor));
- device_create(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor), NULL,
- "raw%d", rq->raw_minor);
+ struct raw_device_data *rawdev;
+ struct block_device *bdev;
+
+ if (number <= 0 || number >= MAX_RAW_MINORS)
+ return -EINVAL;
+
+ rawdev = &raw_devices[number];
+
+ mutex_lock(&raw_mutex);
+ bdev = rawdev->binding;
+ *dev = bdev ? bdev->bd_dev : 0;
+ mutex_unlock(&raw_mutex);
+ return 0;
}
/*
@@ -149,105 +210,78 @@ 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;
+ dev_t dev;
+ int err;
- lock_kernel();
switch (command) {
case RAW_SETBIND:
+ if (copy_from_user(&rq, (void __user *) arg, sizeof(rq)))
+ return -EFAULT;
+
+ return bind_set(rq.raw_minor, rq.block_major, rq.block_minor);
+
case RAW_GETBIND:
+ if (copy_from_user(&rq, (void __user *) arg, sizeof(rq)))
+ return -EFAULT;
- /* First, find out which raw minor we want */
+ err = bind_get(rq.raw_minor, &dev);
+ if (err)
+ return err;
- if (copy_from_user(&rq, (void __user *) arg, sizeof(rq))) {
- err = -EFAULT;
- goto out;
- }
+ rq.block_major = MAJOR(dev);
+ rq.block_minor = MINOR(dev);
- if (rq.raw_minor <= 0 || rq.raw_minor >= MAX_RAW_MINORS) {
- err = -EINVAL;
- goto out;
- }
- rawdev = &raw_devices[rq.raw_minor];
-
- if (command == RAW_SETBIND) {
- dev_t dev;
-
- /*
- * This is like making block devices, so demand the
- * same capability
- */
- if (!capable(CAP_SYS_ADMIN)) {
- err = -EPERM;
- goto out;
- }
-
- /*
- * For now, we don't need to check that the underlying
- * block device is present or not: we can do that when
- * the raw device is opened. Just check that the
- * major/minor numbers make sense.
- */
-
- dev = MKDEV(rq.block_major, rq.block_minor);
- if ((rq.block_major == 0 && rq.block_minor != 0) ||
- MAJOR(dev) != rq.block_major ||
- MINOR(dev) != rq.block_minor) {
- err = -EINVAL;
- goto out;
- }
-
- mutex_lock(&raw_mutex);
- if (rawdev->inuse) {
- mutex_unlock(&raw_mutex);
- err = -EBUSY;
- goto out;
- }
- if (rawdev->binding) {
- bdput(rawdev->binding);
- module_put(THIS_MODULE);
- }
- if (rq.block_major == 0 && rq.block_minor == 0) {
- /* unbind */
- rawdev->binding = NULL;
- device_destroy(raw_class,
- MKDEV(RAW_MAJOR, rq.raw_minor));
- } else {
- rawdev->binding = bdget(dev);
- if (rawdev->binding == NULL)
- err = -ENOMEM;
- else {
- __module_get(THIS_MODULE);
- bind_device(&rq);
- }
- }
- mutex_unlock(&raw_mutex);
- } else {
- struct block_device *bdev;
-
- mutex_lock(&raw_mutex);
- bdev = rawdev->binding;
- if (bdev) {
- rq.block_major = MAJOR(bdev->bd_dev);
- rq.block_minor = MINOR(bdev->bd_dev);
- } else {
- rq.block_major = rq.block_minor = 0;
- }
- mutex_unlock(&raw_mutex);
- if (copy_to_user((void __user *)arg, &rq, sizeof(rq))) {
- err = -EFAULT;
- goto out;
- }
- }
- break;
- default:
- err = -EINVAL;
- break;
+ if (copy_to_user((void __user *)arg, &rq, sizeof(rq)))
+ return -EFAULT;
+
+ return 0;
}
-out:
- unlock_kernel();
- return err;
+
+ return -EINVAL;
+}
+
+#ifdef CONFIG_COMPAT
+struct raw32_config_request {
+ compat_int_t raw_minor;
+ compat_u64 block_major;
+ compat_u64 block_minor;
+};
+
+static long raw_ctl_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct raw32_config_request __user *user_req = compat_ptr(arg);
+ struct raw32_config_request rq;
+ dev_t dev;
+ int err = 0;
+
+ switch (cmd) {
+ case RAW_SETBIND:
+ if (copy_from_user(&rq, user_req, sizeof(rq)))
+ return -EFAULT;
+
+ return bind_set(rq.raw_minor, rq.block_major, rq.block_minor);
+
+ case RAW_GETBIND:
+ if (copy_from_user(&rq, user_req, sizeof(rq)))
+ return -EFAULT;
+
+ err = bind_get(rq.raw_minor, &dev);
+ if (err)
+ return err;
+
+ rq.block_major = MAJOR(dev);
+ rq.block_minor = MINOR(dev);
+
+ if (copy_to_user(user_req, &rq, sizeof(rq)))
+ return -EFAULT;
+
+ return 0;
+ }
+
+ return -EINVAL;
}
+#endif
static const struct file_operations raw_fops = {
.read = do_sync_read,
@@ -263,6 +297,9 @@ static const struct file_operations raw_fops = {
static const struct file_operations raw_ctl_fops = {
.unlocked_ioctl = raw_ctl_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = raw_ctl_compat_ioctl,
+#endif
.open = raw_open,
.owner = THIS_MODULE,
};
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index 80ea6bcfffd..e32cbf0c9a0 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -37,7 +37,7 @@
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/sysfs.h>
#include <linux/device.h>
@@ -206,7 +206,7 @@ static int tlclk_open(struct inode *inode, struct file *filp)
{
int result;
- lock_kernel();
+ mutex_lock(&tlclk_mutex);
if (test_and_set_bit(0, &useflags)) {
result = -EBUSY;
/* this legacy device is always one per system and it doesn't
@@ -229,7 +229,7 @@ static int tlclk_open(struct inode *inode, struct file *filp)
inb(TLCLK_REG6); /* Clear interrupt events */
out:
- unlock_kernel();
+ mutex_unlock(&tlclk_mutex);
return result;
}
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 4cab0c6397e..7af44367262 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -73,7 +73,8 @@ source "drivers/gpu/drm/radeon/Kconfig"
config DRM_I810
tristate "Intel I810"
- depends on DRM && AGP && AGP_INTEL
+ # BKL usage in order to avoid AB-BA deadlocks, may become BROKEN_ON_SMP
+ depends on DRM && AGP && AGP_INTEL && BKL
help
Choose this option if you have an Intel I810 graphics card. If M is
selected, the module will be called i810. AGP support is required
@@ -86,6 +87,8 @@ choice
config DRM_I830
tristate "i830 driver"
+ # BKL usage in order to avoid AB-BA deadlocks, i830 may get removed
+ depends on BKL
help
Choose this option if you have a system that has Intel 830M, 845G,
852GM, 855GM or 865G integrated graphics. If M is selected, the
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index a28541b2b1a..bad2cedb8d9 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -19,6 +19,7 @@ comment "Multimedia core support"
config VIDEO_DEV
tristate "Video For Linux"
+ depends on BKL # used in many drivers for ioctl handling, need to kill
---help---
V4L core support for video capture and overlay devices, webcams and
AM/FM radio cards.
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c
index cf870516284..d75788b4e22 100644
--- a/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/drivers/media/dvb/bt8xx/dst_ca.c
@@ -22,7 +22,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/string.h>
#include <linux/dvb/ca.h>
#include "dvbdev.h"
@@ -52,6 +52,7 @@
} while(0)
+static DEFINE_MUTEX(dst_ca_mutex);
static unsigned int verbose = 5;
module_param(verbose, int, 0644);
MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
@@ -564,7 +565,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
void __user *arg = (void __user *)ioctl_arg;
int result = 0;
- lock_kernel();
+ mutex_lock(&dst_ca_mutex);
dvbdev = file->private_data;
state = (struct dst_state *)dvbdev->priv;
p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
@@ -652,7 +653,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
kfree (p_ca_slot_info);
kfree (p_ca_caps);
- unlock_kernel();
+ mutex_unlock(&dst_ca_mutex);
return result;
}
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 0042306ea11..2de13b04b09 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -25,7 +25,6 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
-#include <linux/smp_lock.h>
#include <linux/poll.h>
#include <linux/ioctl.h>
#include <linux/wait.h>
@@ -1088,13 +1087,7 @@ static int dvb_demux_do_ioctl(struct file *file,
static long dvb_demux_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
- int ret;
-
- lock_kernel();
- ret = dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl);
- unlock_kernel();
-
- return ret;
+ return dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl);
}
static unsigned int dvb_demux_poll(struct file *file, poll_table *wait)
@@ -1186,13 +1179,7 @@ static int dvb_dvr_do_ioctl(struct file *file,
static long dvb_dvr_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- int ret;
-
- lock_kernel();
- ret = dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl);
- unlock_kernel();
-
- return ret;
+ return dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl);
}
static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait)
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index cb97e6b8543..1723a984a52 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -1259,13 +1259,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
static long dvb_ca_en50221_io_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- int ret;
-
- lock_kernel();
- ret = dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
- unlock_kernel();
-
- return ret;
+ return dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
}
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 6c3a8a06cca..a08032284cb 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -59,7 +59,6 @@
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/dvb/net.h>
-#include <linux/smp_lock.h>
#include <linux/uio.h>
#include <asm/uaccess.h>
#include <linux/crc32.h>
@@ -1445,13 +1444,7 @@ static int dvb_net_do_ioctl(struct file *file,
static long dvb_net_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- int ret;
-
- lock_kernel();
- ret = dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl);
- unlock_kernel();
-
- return ret;
+ return dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl);
}
static int dvb_net_close(struct inode *inode, struct file *file)
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index b915c39d782..28f486edcaf 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -32,9 +32,9 @@
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
#include "dvbdev.h"
+static DEFINE_MUTEX(dvbdev_mutex);
static int dvbdev_debug;
module_param(dvbdev_debug, int, 0644);
@@ -68,7 +68,7 @@ static int dvb_device_open(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev;
- lock_kernel();
+ mutex_lock(&dvbdev_mutex);
down_read(&minor_rwsem);
dvbdev = dvb_minors[iminor(inode)];
@@ -91,12 +91,12 @@ static int dvb_device_open(struct inode *inode, struct file *file)
}
fops_put(old_fops);
up_read(&minor_rwsem);
- unlock_kernel();
+ mutex_unlock(&dvbdev_mutex);
return err;
}
fail:
up_read(&minor_rwsem);
- unlock_kernel();
+ mutex_unlock(&dvbdev_mutex);
return -ENODEV;
}
@@ -158,7 +158,6 @@ long dvb_generic_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct dvb_device *dvbdev = file->private_data;
- int ret;
if (!dvbdev)
return -ENODEV;
@@ -166,11 +165,7 @@ long dvb_generic_ioctl(struct file *file,
if (!dvbdev->kernel_ioctl)
return -EINVAL;
- lock_kernel();
- ret = dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl);
- unlock_kernel();
-
- return ret;
+ return dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl);
}
EXPORT_SYMBOL(dvb_generic_ioctl);
@@ -421,8 +416,10 @@ int dvb_usercopy(struct file *file,
}
/* call driver */
+ mutex_lock(&dvbdev_mutex);
if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD)
err = -EINVAL;
+ mutex_unlock(&dvbdev_mutex);
if (err < 0)
goto out;
diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index 5b176bd7afd..f3e25e91366 100644
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -32,7 +32,6 @@
#include <linux/list.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
@@ -621,7 +620,6 @@ static int dabusb_open (struct inode *inode, struct file *file)
if (devnum < DABUSB_MINOR || devnum >= (DABUSB_MINOR + NRDABUSB))
return -EIO;
- lock_kernel();
s = &dabusb[devnum - DABUSB_MINOR];
dbg("dabusb_open");
@@ -630,21 +628,17 @@ static int dabusb_open (struct inode *inode, struct file *file)
while (!s->usbdev || s->opened) {
mutex_unlock(&s->mutex);
- if (file->f_flags & O_NONBLOCK) {
+ if (file->f_flags & O_NONBLOCK)
return -EBUSY;
- }
msleep_interruptible(500);
- if (signal_pending (current)) {
- unlock_kernel();
+ if (signal_pending (current))
return -EAGAIN;
- }
mutex_lock(&s->mutex);
}
if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) {
mutex_unlock(&s->mutex);
dev_err(&s->usbdev->dev, "set_interface failed\n");
- unlock_kernel();
return -EINVAL;
}
s->opened = 1;
@@ -654,7 +648,6 @@ static int dabusb_open (struct inode *inode, struct file *file)
file->private_data = s;
r = nonseekable_open(inode, file);
- unlock_kernel();
return r;
}
@@ -689,17 +682,13 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg
dbg("dabusb_ioctl");
- lock_kernel();
- if (s->remove_pending) {
- unlock_kernel();
+ if (s->remove_pending)
return -EIO;
- }
mutex_lock(&s->mutex);
if (!s->usbdev) {
mutex_unlock(&s->mutex);
- unlock_kernel();
return -EIO;
}
@@ -735,7 +724,6 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg
break;
}
mutex_unlock(&s->mutex);
- unlock_kernel();
return ret;
}
diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig
index 0a0e0cd81a2..20f97e7017c 100644
--- a/drivers/net/appletalk/Kconfig
+++ b/drivers/net/appletalk/Kconfig
@@ -3,6 +3,7 @@
#
config ATALK
tristate "Appletalk protocol support"
+ depends on BKL # waiting to be removed from net/appletalk/ddp.c
select LLC
---help---
AppleTalk is the protocol that Apple computers can use to communicate
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 3f94edab25f..e73ebefdf3e 100644
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -31,8 +31,9 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
{
loff_t new = -1;
+ struct inode *inode = file->f_path.dentry->d_inode;
- lock_kernel();
+ mutex_lock(&inode->i_mutex);
switch (whence) {
case 0:
new = off;
@@ -44,12 +45,12 @@ static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
new = 256 + off;
break;
}
- if (new < 0 || new > 256) {
- unlock_kernel();
- return -EINVAL;
- }
- unlock_kernel();
- return (file->f_pos = new);
+ if (new < 0 || new > 256)
+ new = -EINVAL;
+ else
+ file->f_pos = new;
+ mutex_unlock(&inode->i_mutex);
+ return new;
}
static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 8373ca0de8e..38e6fa9a201 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -21,7 +21,6 @@
#include <linux/hdreg.h>
#include <linux/async.h>
#include <linux/mutex.h>
-#include <linux/smp_lock.h>
#include <asm/ccwdev.h>
#include <asm/ebcdic.h>
@@ -2236,7 +2235,6 @@ static int dasd_open(struct block_device *bdev, fmode_t mode)
if (!block)
return -ENODEV;
- lock_kernel();
base = block->base;
atomic_inc(&block->open_count);
if (test_bit(DASD_FLAG_OFFLINE, &base->flags)) {
@@ -2271,14 +2269,12 @@ static int dasd_open(struct block_device *bdev, fmode_t mode)
goto out;
}
- unlock_kernel();
return 0;
out:
module_put(base->discipline->owner);
unlock:
atomic_dec(&block->open_count);
- unlock_kernel();
return rc;
}
@@ -2286,10 +2282,8 @@ static int dasd_release(struct gendisk *disk, fmode_t mode)
{
struct dasd_block *block = disk->private_data;
- lock_kernel();
atomic_dec(&block->open_count);
module_put(block->base->discipline->owner);
- unlock_kernel();
return 0;
}
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 1557214944f..26075e95b1b 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -16,7 +16,6 @@
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/blkpg.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <asm/compat.h>
#include <asm/ccwdev.h>
@@ -370,9 +369,8 @@ static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
return ret;
}
-static int
-dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+int dasd_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
{
struct dasd_block *block = bdev->bd_disk->private_data;
void __user *argp;
@@ -430,14 +428,3 @@ dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
return -EINVAL;
}
}
-
-int dasd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- int rc;
-
- lock_kernel();
- rc = dasd_do_ioctl(bdev, mode, cmd, arg);
- unlock_kernel();
- return rc;
-}
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 2bd72aa34c5..9b43ae94beb 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
-#include <linux/smp_lock.h>
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
@@ -776,7 +775,6 @@ dcssblk_open(struct block_device *bdev, fmode_t mode)
struct dcssblk_dev_info *dev_info;
int rc;
- lock_kernel();
dev_info = bdev->bd_disk->private_data;
if (NULL == dev_info) {
rc = -ENODEV;
@@ -786,7 +784,6 @@ dcssblk_open(struct block_device *bdev, fmode_t mode)
bdev->bd_block_size = 4096;
rc = 0;
out:
- unlock_kernel();
return rc;
}
@@ -797,7 +794,6 @@ dcssblk_release(struct gendisk *disk, fmode_t mode)
struct segment_info *entry;
int rc;
- lock_kernel();
if (!dev_info) {
rc = -ENODEV;
goto out;
@@ -815,7 +811,6 @@ dcssblk_release(struct gendisk *disk, fmode_t mode)
up_write(&dcssblk_devices_sem);
rc = 0;
out:
- unlock_kernel();
return rc;
}
diff --git a/drivers/staging/cx25821/Kconfig b/drivers/staging/cx25821/Kconfig
index df7756a95fa..813cb355ac0 100644
--- a/drivers/staging/cx25821/Kconfig
+++ b/drivers/staging/cx25821/Kconfig
@@ -1,6 +1,7 @@
config VIDEO_CX25821
tristate "Conexant cx25821 support"
depends on DVB_CORE && VIDEO_DEV && PCI && I2C && INPUT
+ depends on BKL # please fix
select I2C_ALGOBIT
select VIDEO_BTCX
select VIDEO_TVEEPROM
diff --git a/drivers/staging/easycap/Kconfig b/drivers/staging/easycap/Kconfig
index bd96f39f273..9d5fe4ddc30 100644
--- a/drivers/staging/easycap/Kconfig
+++ b/drivers/staging/easycap/Kconfig
@@ -1,6 +1,7 @@
config EASYCAP
tristate "EasyCAP USB ID 05e1:0408 support"
depends on USB && VIDEO_DEV
+ depends on BKL # please fix
---help---
This is an integrated audio/video driver for EasyCAP cards with
diff --git a/drivers/staging/go7007/Kconfig b/drivers/staging/go7007/Kconfig
index e47f683a323..75fa4680552 100644
--- a/drivers/staging/go7007/Kconfig
+++ b/drivers/staging/go7007/Kconfig
@@ -1,6 +1,7 @@
config VIDEO_GO7007
tristate "WIS GO7007 MPEG encoder support"
depends on VIDEO_DEV && PCI && I2C && INPUT
+ depends on BKL # please fix
depends on SND
select VIDEOBUF_DMA_SG
select VIDEO_IR
diff --git a/drivers/staging/usbip/Kconfig b/drivers/staging/usbip/Kconfig
index 2c1d10acb8b..b11ec379b5c 100644
--- a/drivers/staging/usbip/Kconfig
+++ b/drivers/staging/usbip/Kconfig
@@ -1,6 +1,6 @@
config USB_IP_COMMON
tristate "USB IP support (EXPERIMENTAL)"
- depends on USB && NET && EXPERIMENTAL
+ depends on USB && NET && EXPERIMENTAL && BKL
default N
---help---
This enables pushing USB packets over IP to allow remote
diff --git a/fs/Kconfig b/fs/Kconfig
index 3d185308ec8..65781de44fc 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -50,6 +50,7 @@ endif # BLOCK
config FILE_LOCKING
bool "Enable POSIX file locking API" if EMBEDDED
default y
+ select BKL # while lockd still uses it.
help
This option enables standard file locking support, required
for filesystems like NFS and for the flock() system
diff --git a/fs/adfs/Kconfig b/fs/adfs/Kconfig
index e55182a7460..1dd5f34b3cf 100644
--- a/fs/adfs/Kconfig
+++ b/fs/adfs/Kconfig
@@ -1,6 +1,7 @@
config ADFS_FS
tristate "ADFS file system support (EXPERIMENTAL)"
depends on BLOCK && EXPERIMENTAL
+ depends on BKL # need to fix
help
The Acorn Disc Filing System is the standard file system of the
RiscOS operating system which runs on Acorn's ARM-based Risc PC
diff --git a/fs/autofs/Kconfig b/fs/autofs/Kconfig
index 5f3bea90911..480e210c83a 100644
--- a/fs/autofs/Kconfig
+++ b/fs/autofs/Kconfig
@@ -1,5 +1,6 @@
config AUTOFS_FS
tristate "Kernel automounter support"
+ depends on BKL # unfixable, just use autofs4
help
The automounter is a tool to automatically mount remote file systems
on demand. This implementation is partially kernel-based to reduce
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 03e59aa318e..d0ad09d5778 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -599,69 +599,6 @@ static int do_smb_getmountuid(unsigned int fd, unsigned int cmd,
#define HIDPGETCONNLIST _IOR('H', 210, int)
#define HIDPGETCONNINFO _IOR('H', 211, int)
-#ifdef CONFIG_BLOCK
-struct raw32_config_request
-{
- compat_int_t raw_minor;
- __u64 block_major;
- __u64 block_minor;
-} __attribute__((packed));
-
-static int get_raw32_request(struct raw_config_request *req, struct raw32_config_request __user *user_req)
-{
- int ret;
-
- if (!access_ok(VERIFY_READ, user_req, sizeof(struct raw32_config_request)))
- return -EFAULT;
-
- ret = __get_user(req->raw_minor, &user_req->raw_minor);
- ret |= __get_user(req->block_major, &user_req->block_major);
- ret |= __get_user(req->block_minor, &user_req->block_minor);
-
- return ret ? -EFAULT : 0;
-}
-
-static int set_raw32_request(struct raw_config_request *req, struct raw32_config_request __user *user_req)
-{
- int ret;
-
- if (!access_ok(VERIFY_WRITE, user_req, sizeof(struct raw32_config_request)))
- return -EFAULT;
-
- ret = __put_user(req->raw_minor, &user_req->raw_minor);
- ret |= __put_user(req->block_major, &user_req->block_major);
- ret |= __put_user(req->block_minor, &user_req->block_minor);
-
- return ret ? -EFAULT : 0;
-}
-
-static int raw_ioctl(unsigned fd, unsigned cmd,
- struct raw32_config_request __user *user_req)
-{
- int ret;
-
- switch (cmd) {
- case RAW_SETBIND:
- default: { /* RAW_GETBIND */
- struct raw_config_request req;
- mm_segment_t oldfs = get_fs();
-
- if ((ret = get_raw32_request(&req, user_req)))
- return ret;
-
- set_fs(KERNEL_DS);
- ret = sys_ioctl(fd,cmd,(unsigned long)&req);
- set_fs(oldfs);
-
- if ((!ret) && (cmd == RAW_GETBIND)) {
- ret = set_raw32_request(&req, user_req);
- }
- break;
- }
- }
- return ret;
-}
-#endif /* CONFIG_BLOCK */
struct serial_struct32 {
compat_int_t type;
@@ -1262,9 +1199,6 @@ COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
COMPATIBLE_IOCTL(OSS_GETVERSION)
-/* Raw devices */
-COMPATIBLE_IOCTL(RAW_SETBIND)
-COMPATIBLE_IOCTL(RAW_GETBIND)
/* SMB ioctls which do not need any translations */
COMPATIBLE_IOCTL(SMB_IOC_NEWCONN)
/* Watchdog */
@@ -1523,10 +1457,6 @@ static long do_ioctl_trans(int fd, unsigned int cmd,
case MTIOCGET32:
case MTIOCPOS32:
return mt_ioctl_trans(fd, cmd, argp);
- /* Raw devices */
- case RAW_SETBIND:
- case RAW_GETBIND:
- return raw_ioctl(fd, cmd, argp);
#endif
/* One SMB ioctl needs translations. */
#define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
diff --git a/fs/hpfs/Kconfig b/fs/hpfs/Kconfig
index 56bd15c5bf6..63b6f563231 100644
--- a/fs/hpfs/Kconfig
+++ b/fs/hpfs/Kconfig
@@ -1,6 +1,7 @@
config HPFS_FS
tristate "OS/2 HPFS file system support"
depends on BLOCK
+ depends on BKL # nontrivial to fix
help
OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
is the file system used for organizing files on OS/2 hard disk
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index f7e13db613c..b950415d7c4 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -1,6 +1,7 @@
config NFS_FS
tristate "NFS client support"
depends on INET && FILE_LOCKING
+ depends on BKL # fix as soon as lockd is done
select LOCKD
select SUNRPC
select NFS_ACL_SUPPORT if NFS_V3_ACL
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 4264377552e..7cf4ddafb4a 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -2,6 +2,7 @@ config NFSD
tristate "NFS server support"
depends on INET
depends on FILE_LOCKING
+ depends on BKL # fix as soon as lockd is done
select LOCKD
select SUNRPC
select EXPORTFS
diff --git a/fs/smbfs/Kconfig b/fs/smbfs/Kconfig
index e668127c8b2..2bc24a8c403 100644
--- a/fs/smbfs/Kconfig
+++ b/fs/smbfs/Kconfig
@@ -1,5 +1,6 @@
config SMB_FS
tristate "SMB file system support (OBSOLETE, please use CIFS)"
+ depends on BKL # probably unfixable
depends on INET
select NLS
help
diff --git a/fs/udf/Kconfig b/fs/udf/Kconfig
index 0e0e99bd6bc..f8def3c8ea4 100644
--- a/fs/udf/Kconfig
+++ b/fs/udf/Kconfig
@@ -1,5 +1,6 @@
config UDF_FS
tristate "UDF file system support"
+ depends on BKL # needs serious work to remove
select CRC_ITU_T
help
This is the new file system used on some CD-ROMs and DVDs. Say Y if
diff --git a/fs/ufs/Kconfig b/fs/ufs/Kconfig
index e4f10a40768..30c8f223253 100644
--- a/fs/ufs/Kconfig
+++ b/fs/ufs/Kconfig
@@ -1,6 +1,7 @@
config UFS_FS
tristate "UFS file system support (read only)"
depends on BLOCK
+ depends on BKL # probably fixable
help
BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
OpenBSD and NeXTstep) use a file system called UFS. Some System V
diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h
index 2ea1dd1ba21..291f721144c 100644
--- a/include/linux/smp_lock.h
+++ b/include/linux/smp_lock.h
@@ -54,12 +54,15 @@ static inline void cycle_kernel_lock(void)
#else
+#ifdef CONFIG_BKL /* provoke build bug if not set */
#define lock_kernel()
#define unlock_kernel()
-#define release_kernel_lock(task) do { } while(0)
#define cycle_kernel_lock() do { } while(0)
-#define reacquire_kernel_lock(task) 0
#define kernel_locked() 1
+#endif /* CONFIG_BKL */
+
+#define release_kernel_lock(task) do { } while(0)
+#define reacquire_kernel_lock(task) 0
#endif /* CONFIG_LOCK_KERNEL */
#endif /* __LINUX_SMPLOCK_H */
diff --git a/init/Kconfig b/init/Kconfig
index 36890f0c845..be85a0ab1b8 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -71,7 +71,7 @@ config BROKEN_ON_SMP
config LOCK_KERNEL
bool
- depends on SMP || PREEMPT
+ depends on (SMP || PREEMPT) && BKL
default y
config INIT_ENV_ARG_LIMIT
diff --git a/init/main.c b/init/main.c
index 9684c9670b4..e59af24a0b7 100644
--- a/init/main.c
+++ b/init/main.c
@@ -424,7 +424,6 @@ static void __init setup_command_line(char *command_line)
static __initdata DECLARE_COMPLETION(kthreadd_done);
static noinline void __init_refok rest_init(void)
- __releases(kernel_lock)
{
int pid;
@@ -818,7 +817,6 @@ static void run_init_process(const char *init_filename)
* makes it inline to init() and it becomes part of init.text section
*/
static noinline int init_post(void)
- __releases(kernel_lock)
{
/* need to finish all async __init code before freeing the memory */
async_synchronize_full();
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index a56f629b057..66cb89bc5ef 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -76,7 +76,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
}
if (!lockwakeup && td->bkl == 4) {
+#ifdef CONFIG_LOCK_KERNEL
unlock_kernel();
+#endif
td->bkl = 0;
}
return 0;
@@ -133,14 +135,18 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
if (td->bkl)
return 0;
td->bkl = 1;
+#ifdef CONFIG_LOCK_KERNEL
lock_kernel();
+#endif
td->bkl = 4;
return 0;
case RTTEST_UNLOCKBKL:
if (td->bkl != 4)
break;
+#ifdef CONFIG_LOCK_KERNEL
unlock_kernel();
+#endif
td->bkl = 0;
return 0;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 959f8d6c8cc..5328e8779d4 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -23,7 +23,6 @@
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/debugfs.h>
-#include <linux/smp_lock.h>
#include <linux/time.h>
#include <linux/uaccess.h>
@@ -639,7 +638,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
if (!q)
return -ENXIO;
- lock_kernel();
mutex_lock(&bdev->bd_mutex);
switch (cmd) {
@@ -667,7 +665,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
}
mutex_unlock(&bdev->bd_mutex);
- unlock_kernel();
return ret;
}
@@ -1652,10 +1649,9 @@ static ssize_t sysfs_blk_trace_attr_show(struct device *dev,
struct block_device *bdev;
ssize_t ret = -ENXIO;
- lock_kernel();
bdev = bdget(part_devt(p));
if (bdev == NULL)
- goto out_unlock_kernel;
+ goto out;
q = blk_trace_get_queue(bdev);
if (q == NULL)
@@ -1683,8 +1679,7 @@ out_unlock_bdev:
mutex_unlock(&bdev->bd_mutex);
out_bdput:
bdput(bdev);
-out_unlock_kernel:
- unlock_kernel();
+out:
return ret;
}
@@ -1714,11 +1709,10 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
ret = -ENXIO;
- lock_kernel();
p = dev_to_part(dev);
bdev = bdget(part_devt(p));
if (bdev == NULL)
- goto out_unlock_kernel;
+ goto out;
q = blk_trace_get_queue(bdev);
if (q == NULL)
@@ -1753,8 +1747,6 @@ out_unlock_bdev:
mutex_unlock(&bdev->bd_mutex);
out_bdput:
bdput(bdev);
-out_unlock_kernel:
- unlock_kernel();
out:
return ret ? ret : count;
}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 21ac83070a8..7b2a8ca97ad 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -461,6 +461,15 @@ config DEBUG_MUTEXES
This feature allows mutex semantics violations to be detected and
reported.
+config BKL
+ bool "Big Kernel Lock" if (SMP || PREEMPT)
+ default y
+ help
+ This is the traditional lock that is used in old code instead
+ of proper locking. All drivers that use the BKL should depend
+ on this symbol.
+ Say Y here unless you are working on removing the BKL.
+
config DEBUG_LOCK_ALLOC
bool "Lock debugging: detect incorrect freeing of live locks"
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
diff --git a/net/ipx/Kconfig b/net/ipx/Kconfig
index e9ad0062fbb..02549cb2c32 100644
--- a/net/ipx/Kconfig
+++ b/net/ipx/Kconfig
@@ -3,6 +3,7 @@
#
config IPX
tristate "The IPX protocol"
+ depends on BKL # should be fixable
select LLC
---help---
This is support for the Novell networking protocol, IPX, commonly
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 2b06410e584..29b11e06501 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -28,7 +28,6 @@
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
#include <asm/ioctls.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/cache.h>
@@ -1348,15 +1347,10 @@ static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait)
static long cache_ioctl_procfs(struct file *filp,
unsigned int cmd, unsigned long arg)
{
- long ret;
struct inode *inode = filp->f_path.dentry->d_inode;
struct cache_detail *cd = PDE(inode)->data;
- lock_kernel();
- ret = cache_ioctl(inode, filp, cmd, arg, cd);
- unlock_kernel();
-
- return ret;
+ return cache_ioctl(inode, filp, cmd, arg, cd);
}
static int cache_open_procfs(struct inode *inode, struct file *filp)
@@ -1555,13 +1549,8 @@ static long cache_ioctl_pipefs(struct file *filp,
{
struct inode *inode = filp->f_dentry->d_inode;
struct cache_detail *cd = RPC_I(inode)->private;
- long ret;
- lock_kernel();
- ret = cache_ioctl(inode, filp, cmd, arg, cd);
- unlock_kernel();
-
- return ret;
+ return cache_ioctl(inode, filp, cmd, arg, cd);
}
static int cache_open_pipefs(struct inode *inode, struct file *filp)
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 8c8eef2b8f2..28bcd52e3ce 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -27,7 +27,6 @@
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/sunrpc/cache.h>
-#include <linux/smp_lock.h>
static struct vfsmount *rpc_mount __read_mostly;
static int rpc_mount_count;
@@ -309,40 +308,33 @@ rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait)
return mask;
}
-static int
-rpc_pipe_ioctl_unlocked(struct file *filp, unsigned int cmd, unsigned long arg)
+static long
+rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- struct rpc_inode *rpci = RPC_I(filp->f_path.dentry->d_inode);
+ struct inode *inode = filp->f_path.dentry->d_inode;
+ struct rpc_inode *rpci = RPC_I(inode);
int len;
switch (cmd) {
case FIONREAD:
- if (rpci->ops == NULL)
+ spin_lock(&inode->i_lock);
+ if (rpci->ops == NULL) {
+ spin_unlock(&inode->i_lock);
return -EPIPE;
+ }
len = rpci->pipelen;
if (filp->private_data) {
struct rpc_pipe_msg *msg;
msg = (struct rpc_pipe_msg *)filp->private_data;
len += msg->len - msg->copied;
}
+ spin_unlock(&inode->i_lock);
return put_user(len, (int __user *)arg);
default:
return -EINVAL;
}
}
-static long
-rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- long ret;
-
- lock_kernel();
- ret = rpc_pipe_ioctl_unlocked(filp, cmd, arg);
- unlock_kernel();
-
- return ret;
-}
-
static const struct file_operations rpc_pipe_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
diff --git a/net/x25/Kconfig b/net/x25/Kconfig
index e6759c9660b..2196e55e4f6 100644
--- a/net/x25/Kconfig
+++ b/net/x25/Kconfig
@@ -5,6 +5,7 @@
config X25
tristate "CCITT X.25 Packet Layer (EXPERIMENTAL)"
depends on EXPERIMENTAL
+ depends on BKL # should be fixable
---help---
X.25 is a set of standardized network protocols, similar in scope to
frame relay; the one physical line from your box to the X.25 network