diff mbox

[1/2] btrfs-progs: Introduce btrfs_close_all_devices to close all fs_devices in fs_uuids list

Message ID 9f0cf7c0a07faefb4f3af86f8e7c63b56a338b7a.1440405874.git.zhaolei@cn.fujitsu.com (mailing list archive)
State Accepted
Headers show

Commit Message

Zhaolei Aug. 24, 2015, 8:45 a.m. UTC
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@cn.fujitsu.com>
---
 volumes.c | 11 +++++++++++
 volumes.h |  1 +
 2 files changed, 12 insertions(+)

Comments

David Sterba Aug. 25, 2015, 5:21 p.m. UTC | #1
On Mon, Aug 24, 2015 at 04:45:02PM +0800, Zhao Lei wrote:
> 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@cn.fujitsu.com>

Applied, thanks.
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diff mbox

Patch

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);