diff options
| author |   Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2025-03-17 12:24:59 +0100 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2025-03-18 20:35:57 +0100 |
| commit | 35fec1089ebb5617f85884d3fa6a699ce6337a75 (patch) | |
| tree | 2398dc027c6d1dda28bbb91128012114f0a67473 | |
| parent | btrfs: zoned: fix zone activation with missing devices (diff) | |
| download | wireguard-linux-35fec1089ebb5617f85884d3fa6a699ce6337a75.tar.xz wireguard-linux-35fec1089ebb5617f85884d3fa6a699ce6337a75.zip | |
btrfs: zoned: fix zone finishing with missing devices
If do_zone_finish() is called with a filesystem that has missing devices
(e.g. a RAID file system mounted in degraded mode) it is accessing the
btrfs_device::zone_info pointer, which will not be set if the device
in question is missing.
Check if the device is present (by checking if it has a valid block device
pointer associated) and if not, skip zone finishing for it.
Fixes: 4dcbb8ab31c1 ("btrfs: zoned: make zone finishing multi stripe capable")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/zoned.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 9faf1e097196..fb8b8b29c169 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -2275,6 +2275,9 @@ static int do_zone_finish(struct btrfs_block_group *block_group, bool fully_writ struct btrfs_zoned_device_info *zinfo = device->zone_info; unsigned int nofs_flags; + if (!device->bdev) + continue; + if (zinfo->max_active_zones == 0) continue; |