From efa7c9f97e3ef624e9a398bf69c15f58eea9f0e8 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 2 Feb 2017 15:56:53 +0100 Subject: 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 Signed-off-by: Jens Axboe --- block/blk-core.c | 14 -------------- block/compat_ioctl.c | 7 ++----- block/ioctl.c | 7 ++----- 3 files changed, 4 insertions(+), 24 deletions(-) (limited to 'block') diff --git a/block/blk-core.c b/block/blk-core.c index 6375674e719b..a3c29270807e 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -105,20 +105,6 @@ void blk_queue_congestion_threshold(struct request_queue *q) q->nr_congestion_off = nr; } -/** - * blk_get_backing_dev_info - get the address of a queue's backing_dev_info - * @bdev: device - * - * Locates the passed device's request queue and returns the address of its - * backing_dev_info. The return value is never NULL however we may return - * &noop_backing_dev_info if the bdev is not currently open. - */ -struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev) -{ - return bdev->bd_bdi; -} -EXPORT_SYMBOL(blk_get_backing_dev_info); - void blk_rq_init(struct request_queue *q, struct request *rq) { memset(rq, 0, sizeof(*rq)); 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); diff --git a/block/ioctl.c b/block/ioctl.c index be7f4de3eb3c..7b88820b93d9 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -505,7 +505,6 @@ static int blkdev_bszset(struct block_device *bdev, fmode_t mode, int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, unsigned long arg) { - struct backing_dev_info *bdi; void __user *argp = (void __user *)arg; loff_t size; unsigned int max_sectors; @@ -532,8 +531,7 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, case BLKFRAGET: if (!arg) return -EINVAL; - bdi = blk_get_backing_dev_info(bdev); - return put_long(arg, (bdi->ra_pages * PAGE_SIZE) / 512); + return put_long(arg, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512); case BLKROGET: return put_int(arg, bdev_read_only(bdev) != 0); case BLKBSZGET: /* get block device soft block size (cf. BLKSSZGET) */ @@ -560,8 +558,7 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, 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 BLKBSZSET: return blkdev_bszset(bdev, mode, argp); -- cgit v1.2.3-59-g8ed1b