btrfs: handle device lookup with btrfs_dev_lookup_args
We have a lot of device lookup functions that all do something slightly
different. Clean this up by adding a struct to hold the different
lookup criteria, and then pass this around to btrfs_find_device() so it
can do the proper matching based on the lookup criteria.
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9eb0c1e..b8508af 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1602,6 +1602,7 @@ static int exclop_start_or_cancel_reloc(struct btrfs_fs_info *fs_info,
static noinline int btrfs_ioctl_resize(struct file *file,
void __user *arg)
{
+ BTRFS_DEV_LOOKUP_ARGS(args);
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
u64 new_size;
@@ -1657,7 +1658,8 @@ static noinline int btrfs_ioctl_resize(struct file *file,
btrfs_info(fs_info, "resizing devid %llu", devid);
}
- device = btrfs_find_device(fs_info->fs_devices, devid, NULL, NULL);
+ args.devid = devid;
+ device = btrfs_find_device(fs_info->fs_devices, &args);
if (!device) {
btrfs_info(fs_info, "resizer unable to find device %llu",
devid);
@@ -3317,22 +3319,21 @@ static long btrfs_ioctl_fs_info(struct btrfs_fs_info *fs_info,
static long btrfs_ioctl_dev_info(struct btrfs_fs_info *fs_info,
void __user *arg)
{
+ BTRFS_DEV_LOOKUP_ARGS(args);
struct btrfs_ioctl_dev_info_args *di_args;
struct btrfs_device *dev;
int ret = 0;
- char *s_uuid = NULL;
di_args = memdup_user(arg, sizeof(*di_args));
if (IS_ERR(di_args))
return PTR_ERR(di_args);
+ args.devid = di_args->devid;
if (!btrfs_is_empty_uuid(di_args->uuid))
- s_uuid = di_args->uuid;
+ args.uuid = di_args->uuid;
rcu_read_lock();
- dev = btrfs_find_device(fs_info->fs_devices, di_args->devid, s_uuid,
- NULL);
-
+ dev = btrfs_find_device(fs_info->fs_devices, &args);
if (!dev) {
ret = -ENODEV;
goto out;