diff mbox series

[04/10] btrfs-progs: track missing device counter

Message ID 644a524e8929ed4cd749b0b35ac0567271a861e2.1690985783.git.anand.jain@oracle.com (mailing list archive)
State New, archived
Headers show
Series fixes and preparatory related to metadata_uuid | expand

Commit Message

Anand Jain Aug. 2, 2023, 11:29 p.m. UTC 
Maintain the btrfs_fs_devices::missing counter to track the number of
missing devices.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
v2: Maintains parity with the kernel.

 kernel-shared/volumes.c | 2 ++
 kernel-shared/volumes.h | 1 +
 2 files changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/kernel-shared/volumes.c b/kernel-shared/volumes.c
index 92282524867d..54ef553e8230 100644
--- a/kernel-shared/volumes.c
+++ b/kernel-shared/volumes.c
@@ -2156,6 +2156,7 @@  static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
 			       (unsigned long long)devid);
 			list_add(&map->stripes[i].dev->dev_list,
 				 &fs_info->fs_devices->devices);
+			fs_info->fs_devices->missing_devices++;
 		}
 
 	}
@@ -2258,6 +2259,7 @@  static int read_one_dev(struct btrfs_fs_info *fs_info,
 		device->fd = -1;
 		list_add(&device->dev_list,
 			 &fs_info->fs_devices->devices);
+		fs_info->fs_devices->missing_devices++;
 	}
 
 	fill_device_from_item(leaf, dev_item, device);
diff --git a/kernel-shared/volumes.h b/kernel-shared/volumes.h
index ab5ac40269bb..24b52c86562d 100644
--- a/kernel-shared/volumes.h
+++ b/kernel-shared/volumes.h
@@ -88,6 +88,7 @@  struct btrfs_fs_devices {
 	u64 latest_trans;
 	u64 lowest_devid;
 
+	u64 missing_devices;
 	u64 total_rw_bytes;
 
 	int latest_bdev;