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authorJan Kara <jack@suse.cz>2017-02-02 15:56:53 +0100
committerJens Axboe <axboe@fb.com>2017-02-02 08:21:32 -0700
commitefa7c9f97e3ef624e9a398bf69c15f58eea9f0e8 (patch)
treed6f95674556410547789553ce35f64d2897453aa /block/compat_ioctl.c
parentb1d2dc5659b41741f5a29b2ade76ffb4e5bb13d8 (diff)
downloadlinux-stericsson-efa7c9f97e3ef624e9a398bf69c15f58eea9f0e8.tar.gz
block: Get rid of blk_get_backing_dev_info()
blk_get_backing_dev_info() is now a simple dereference. Remove that function and simplify some code around that. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/compat_ioctl.c')
-rw-r--r--block/compat_ioctl.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 556826ac7cb4..570021a0dc1c 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -661,7 +661,6 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
struct block_device *bdev = inode->i_bdev;
struct gendisk *disk = bdev->bd_disk;
fmode_t mode = file->f_mode;
- struct backing_dev_info *bdi;
loff_t size;
unsigned int max_sectors;
@@ -708,9 +707,8 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case BLKFRAGET:
if (!arg)
return -EINVAL;
- bdi = blk_get_backing_dev_info(bdev);
return compat_put_long(arg,
- (bdi->ra_pages * PAGE_SIZE) / 512);
+ (bdev->bd_bdi->ra_pages * PAGE_SIZE) / 512);
case BLKROGET: /* compatible */
return compat_put_int(arg, bdev_read_only(bdev) != 0);
case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */
@@ -728,8 +726,7 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case BLKFRASET:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- bdi = blk_get_backing_dev_info(bdev);
- bdi->ra_pages = (arg * 512) / PAGE_SIZE;
+ bdev->bd_bdi->ra_pages = (arg * 512) / PAGE_SIZE;
return 0;
case BLKGETSIZE:
size = i_size_read(bdev->bd_inode);