block: bd_start_claiming fix module refcount

[safe/jmp/linux-2.6] / fs / block_dev.c

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 26e5f50..204a763 100644 (file)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -172,8 +172,9 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
        struct file *file = iocb->ki_filp;
        struct inode *inode = file->f_mapping->host;
 
-       return blockdev_direct_IO_no_locking(rw, iocb, inode, I_BDEV(inode),
-                               iov, offset, nr_segs, blkdev_get_blocks, NULL);
+       return blockdev_direct_IO_no_locking_newtrunc(rw, iocb, inode,
+                               I_BDEV(inode), iov, offset, nr_segs,
+                               blkdev_get_blocks, NULL);
 }
 
 int __sync_blockdev(struct block_device *bdev, int wait)
@@ -309,8 +310,8 @@ static int blkdev_write_begin(struct file *file, struct address_space *mapping,
                        struct page **pagep, void **fsdata)
 {
        *pagep = NULL;
-       return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
-                               blkdev_get_block);
+       return block_write_begin_newtrunc(file, mapping, pos, len, flags,
+                               pagep, fsdata, blkdev_get_block);
 }
 
 static int blkdev_write_end(struct file *file, struct address_space *mapping,
@@ -358,12 +359,7 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
        return retval;
 }
        
-/*
- *     Filp is never NULL; the only case when ->fsync() is called with
- *     NULL first argument is nfsd_sync_dir() and that's not a directory.
- */
- 
-int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int blkdev_fsync(struct file *filp, int datasync)
 {
        struct inode *bd_inode = filp->f_mapping->host;
        struct block_device *bdev = I_BDEV(bd_inode);
@@ -738,6 +734,7 @@ static struct block_device *bd_start_claiming(struct block_device *bdev,
                return ERR_PTR(-ENXIO);
 
        whole = bdget_disk(disk, 0);
+       module_put(disk->fops->owner);
        put_disk(disk);
        if (!whole)
                return ERR_PTR(-ENOMEM);