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btrfs: convert latest_bdev type to btrfs_device and rename

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In preparation to fix a bug in btrfs_show_devname().

Convert fs_devices::latest_bdev type from struct block_device to struct
btrfs_device and, rename the member to fs_devices::latest_dev.
So that btrfs_show_devname() can use fs_devices::latest_dev::name.

Tested-by: Su Yue <l@damenly.su>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2021-08-24 13:05:19 +08:00 • committed by David Sterba
parent 7ae9bd1803
commit d24fa5c1da
6 changed files with 16 additions and 12 deletions
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2
fs/btrfs/inode.c
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@ -7965,7 +7965,7 @@ static int btrfs_dio_iomap_begin(struct inode *inode, loff_t start,
iomap->type = IOMAP_MAPPED;
}
iomap->offset = start;
iomap->bdev = fs_info->fs_devices->latest_bdev;
iomap->bdev = fs_info->fs_devices->latest_dev->bdev;
iomap->length = len;
if (write && btrfs_use_zone_append(BTRFS_I(inode), em->block_start))