diff mbox

[03/18] btrfs: btrfs_init_new_device should use fs_info->dev_root

Message ID 1480655258-15400-4-git-send-email-jeffm@suse.com
State Accepted
Headers show

Commit Message

Jeff Mahoney Dec. 2, 2016, 5:07 a.m. UTC
From: Jeff Mahoney <jeffm@suse.com>

btrfs_init_new_device only uses the root passed in via the ioctl to
start the transaction.  Nothing else that happens is related to whatever
root the user used to initiate the ioctl.  We can drop the root requirement
and just use fs_info->dev_root instead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
 fs/btrfs/ioctl.c   | 2 +-
 fs/btrfs/volumes.c | 3 ++-
 fs/btrfs/volumes.h | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 67c37fd..5b21a9b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2672,7 +2672,7 @@  static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
 	}
 
 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';
-	ret = btrfs_init_new_device(root, vol_args->name);
+	ret = btrfs_init_new_device(root->fs_info, vol_args->name);
 
 	if (!ret)
 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ed868a0..f336f07 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2310,8 +2310,9 @@  static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
-int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
+int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
 {
+	struct btrfs_root *root = fs_info->dev_root;
 	struct request_queue *q;
 	struct btrfs_trans_handle *trans;
 	struct btrfs_device *device;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 471a619..0c8e77b 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -439,7 +439,7 @@  int btrfs_grow_device(struct btrfs_trans_handle *trans,
 struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
 				       u8 *uuid, u8 *fsid);
 int btrfs_shrink_device(struct btrfs_device *device, u64 new_size);
-int btrfs_init_new_device(struct btrfs_root *root, char *path);
+int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *path);
 int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
 				  struct btrfs_device *srcdev,
 				  struct btrfs_device **device_out);