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authorAl Viro <viro@zeniv.linux.org.uk>2008-03-02 10:29:31 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2008-10-21 07:48:29 -0400
commitfe5f9f2cd57c2ce56f36c66e87a10d4b7a158505 (patch)
tree76bfbf4e634fcd043f4764cfff45ce6ea12171f8 /drivers/md
parenta4600f81393d685043fe2d485cf2b123301f467d (diff)
downloadop-kernel-dev-fe5f9f2cd57c2ce56f36c66e87a10d4b7a158505.zip
op-kernel-dev-fe5f9f2cd57c2ce56f36c66e87a10d4b7a158505.tar.gz
[PATCH] switch dm
ioctl() doesn't need BKL here Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm.c31
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8b4c92b..dc48c25 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -21,7 +21,6 @@
#include <linux/idr.h>
#include <linux/hdreg.h>
#include <linux/blktrace_api.h>
-#include <linux/smp_lock.h>
#define DM_MSG_PREFIX "core"
@@ -249,13 +248,13 @@ static void __exit dm_exit(void)
/*
* Block device functions
*/
-static int dm_blk_open(struct inode *inode, struct file *file)
+static int dm_blk_open(struct block_device *bdev, fmode_t mode)
{
struct mapped_device *md;
spin_lock(&_minor_lock);
- md = inode->i_bdev->bd_disk->private_data;
+ md = bdev->bd_disk->private_data;
if (!md)
goto out;
@@ -274,11 +273,9 @@ out:
return md ? 0 : -ENXIO;
}
-static int dm_blk_close(struct inode *inode, struct file *file)
+static int dm_blk_close(struct gendisk *disk, fmode_t mode)
{
- struct mapped_device *md;
-
- md = inode->i_bdev->bd_disk->private_data;
+ struct mapped_device *md = disk->private_data;
atomic_dec(&md->open_count);
dm_put(md);
return 0;
@@ -315,21 +312,14 @@ static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return dm_get_geometry(md, geo);
}
-static int dm_blk_ioctl(struct inode *inode, struct file *file,
+static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
- struct mapped_device *md;
- struct dm_table *map;
+ struct mapped_device *md = bdev->bd_disk->private_data;
+ struct dm_table *map = dm_get_table(md);
struct dm_target *tgt;
int r = -ENOTTY;
- /* We don't really need this lock, but we do need 'inode'. */
- unlock_kernel();
-
- md = inode->i_bdev->bd_disk->private_data;
-
- map = dm_get_table(md);
-
if (!map || !dm_table_get_size(map))
goto out;
@@ -350,7 +340,6 @@ static int dm_blk_ioctl(struct inode *inode, struct file *file,
out:
dm_table_put(map);
- lock_kernel();
return r;
}
@@ -1698,9 +1687,9 @@ int dm_noflush_suspending(struct dm_target *ti)
EXPORT_SYMBOL_GPL(dm_noflush_suspending);
static struct block_device_operations dm_blk_dops = {
- .__open = dm_blk_open,
- .__release = dm_blk_close,
- .__ioctl = dm_blk_ioctl,
+ .open = dm_blk_open,
+ .release = dm_blk_close,
+ .ioctl = dm_blk_ioctl,
.getgeo = dm_blk_getgeo,
.owner = THIS_MODULE
};
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