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btrfs: create helper btrfs_find_device_by_user_input()

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The patch renames btrfs_dev_replace_find_srcdev() to
btrfs_find_device_by_user_input() and moves it to volumes.c, so that
delete device can use it.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2016-02-13 10:01:35 +08:00
committed by David Sterba
parent bd45ffbcb1
commit 24e0474b59
3 changed files with 23 additions and 23 deletions
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19
fs/btrfs/volumes.c
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@@ -2126,6 +2126,25 @@ int btrfs_find_device_missing_or_by_path(struct btrfs_root *root,
}
}
int btrfs_find_device_by_user_input(struct btrfs_root *root, u64 srcdevid,
char *srcdev_name,
struct btrfs_device **device)
{
int ret;
if (srcdevid) {
ret = 0;
*device = btrfs_find_device(root->fs_info, srcdevid, NULL,
NULL);
if (!*device)
ret = -ENOENT;
} else {
ret = btrfs_find_device_missing_or_by_path(root, srcdev_name,
device);
}
return ret;
}
/*
* does all the dirty work required for changing file system's UUID.
*/