If more than one fs_devices in fs_uuids list(as mkfs.btrfs), we need
close them all before exit.
This function is for above propose.
Signed-off-by: Zhao Lei <zhaolei@xxxxxxxxxxxxxx>
---
volumes.c | 11 +++++++++++
volumes.h | 1 +
2 files changed, 12 insertions(+)
diff --git a/volumes.c b/volumes.c
index f7462c5..ca50f1c 100644
--- a/volumes.c
+++ b/volumes.c
@@ -198,6 +198,17 @@ again:
return 0;
}
+void btrfs_close_all_devices(void)
+{
+ struct btrfs_fs_devices *fs_devices;
+
+ while (!list_empty(&fs_uuids)) {
+ fs_devices = list_entry(fs_uuids.next, struct btrfs_fs_devices,
+ list);
+ btrfs_close_devices(fs_devices);
+ }
+}
+
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices, int flags)
{
int fd;
diff --git a/volumes.h b/volumes.h
index 71d5d66..f776131 100644
--- a/volumes.h
+++ b/volumes.h
@@ -187,6 +187,7 @@ int btrfs_add_device(struct btrfs_trans_handle *trans,
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
int flags);
int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
+void btrfs_close_all_devices(void);
int btrfs_add_device(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_device *device);
--
1.8.5.1
--
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