diff mbox

[2/5] btrfs: set the total_devices in device_list_add()

Message ID 20180109144625.28381-3-anand.jain@oracle.com (mailing list archive)
State New, archived
Headers show

Commit Message

Anand Jain Jan. 9, 2018, 2:46 p.m. UTC 
There is no other parent for device_list_add() except for
btrfs_scan_one_device(), which would set btrfs_fs_devices::total_devices
if device_list_add is successful and this can be done with in
device_list_add() itself.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/volumes.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Josef Bacik Jan. 9, 2018, 4:12 p.m. UTC | #1 
On Tue, Jan 09, 2018 at 10:46:22PM +0800, Anand Jain wrote:
> There is no other parent for device_list_add() except for
> btrfs_scan_one_device(), which would set btrfs_fs_devices::total_devices
> if device_list_add is successful and this can be done with in
> device_list_add() itself.
> 
> Signed-off-by: Anand Jain <anand.jain@oracle.com>

Reviewed-by: Josef Bacik <jbacik@fb.com>

Thanks,

Josef
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diff mbox

Patch

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 091eb452f3c8..f9aaf65e27f5 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -844,6 +844,8 @@  static noinline int device_list_add(const char *path,
 	if (!fs_devices->opened)
 		device->generation = found_transid;
 
+	fs_devices->total_devices = btrfs_super_num_devices(disk_super);
+
 	*fs_devices_ret = fs_devices;
 
 	return 0;
@@ -1185,7 +1187,6 @@  int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
 	struct page *page;
 	int ret;
 	u64 devid;
-	u64 total_devices;
 	u64 bytenr;
 
 	/*
@@ -1207,12 +1208,9 @@  int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
 	}
 
 	devid = btrfs_stack_device_id(&disk_super->dev_item);
-	total_devices = btrfs_super_num_devices(disk_super);
 
 	mutex_lock(&uuid_mutex);
 	ret = device_list_add(path, disk_super, devid, fs_devices_ret);
-	if (!ret && fs_devices_ret)
-		(*fs_devices_ret)->total_devices = total_devices;
 	mutex_unlock(&uuid_mutex);
 
 	btrfs_release_disk_super(page);