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author | Arnd Bergmann <arnd@arndb.de> | 2010-06-02 14:28:52 +0200 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-05 15:01:10 +0200 |
commit | 2a48fc0ab24241755dc93bfd4f01d68efab47f5a (patch) | |
tree | fa9ae10ce89b26b7d8ae9ce24bdfda5e3007b763 /drivers/ide/ide-cd.c | |
parent | 613655fa39ff6957754fa8ceb8559980920eb8ee (diff) | |
download | linux-2a48fc0ab24241755dc93bfd4f01d68efab47f5a.tar.gz linux-2a48fc0ab24241755dc93bfd4f01d68efab47f5a.tar.bz2 linux-2a48fc0ab24241755dc93bfd4f01d68efab47f5a.zip |
block: autoconvert trivial BKL users to private mutex
The block device drivers have all gained new lock_kernel
calls from a recent pushdown, and some of the drivers
were already using the BKL before.
This turns the BKL into a set of per-driver mutexes.
Still need to check whether this is safe to do.
file=$1
name=$2
if grep -q lock_kernel ${file} ; then
if grep -q 'include.*linux.mutex.h' ${file} ; then
sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
else
sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
fi
sed -i ${file} \
-e "/^#include.*linux.mutex.h/,$ {
1,/^\(static\|int\|long\)/ {
/^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);
} }" \
-e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
-e '/[ ]*cycle_kernel_lock();/d'
else
sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \
-e '/cycle_kernel_lock()/d'
fi
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/ide/ide-cd.c')
-rw-r--r-- | drivers/ide/ide-cd.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 31fc76960a8f..0c73fe39a236 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -31,7 +31,6 @@ #include <linux/delay.h> #include <linux/timer.h> #include <linux/seq_file.h> -#include <linux/smp_lock.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/errno.h> @@ -52,6 +51,7 @@ #include "ide-cd.h" +static DEFINE_MUTEX(ide_cd_mutex); static DEFINE_MUTEX(idecd_ref_mutex); static void ide_cd_release(struct device *); @@ -1602,7 +1602,7 @@ static int idecd_open(struct block_device *bdev, fmode_t mode) struct cdrom_info *info; int rc = -ENXIO; - lock_kernel(); + mutex_lock(&ide_cd_mutex); info = ide_cd_get(bdev->bd_disk); if (!info) goto out; @@ -1611,7 +1611,7 @@ static int idecd_open(struct block_device *bdev, fmode_t mode) if (rc < 0) ide_cd_put(info); out: - unlock_kernel(); + mutex_unlock(&ide_cd_mutex); return rc; } @@ -1619,11 +1619,11 @@ static int idecd_release(struct gendisk *disk, fmode_t mode) { struct cdrom_info *info = ide_drv_g(disk, cdrom_info); - lock_kernel(); + mutex_lock(&ide_cd_mutex); cdrom_release(&info->devinfo, mode); ide_cd_put(info); - unlock_kernel(); + mutex_unlock(&ide_cd_mutex); return 0; } @@ -1694,9 +1694,9 @@ static int idecd_ioctl(struct block_device *bdev, fmode_t mode, { int ret; - lock_kernel(); + mutex_lock(&ide_cd_mutex); ret = idecd_locked_ioctl(bdev, mode, cmd, arg); - unlock_kernel(); + mutex_unlock(&ide_cd_mutex); return ret; } |