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| author |   Anand Jain <anand.jain@oracle.com> | 2022-08-12 18:32:18 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-08-23 22:15:21 +0200 |
| commit | 59a3991984dbc1fc47e5651a265c5200bd85464e (patch) | |
| tree | 3df26cfd92d8cf749c2a972a1ad8f0c8e7f9f31c /fs | |
| parent | btrfs: fix silent failure when deleting root reference (diff) | |
| download | linux-dev-59a3991984dbc1fc47e5651a265c5200bd85464e.tar.xz linux-dev-59a3991984dbc1fc47e5651a265c5200bd85464e.zip | |
btrfs: replace: drop assert for suspended replace
If the filesystem mounts with the replace-operation in a suspended state
and try to cancel the suspended replace-operation, we hit the assert. The
assert came from the commit fe97e2e173af ("btrfs: dev-replace: replace's
scrub must not be running in suspended state") that was actually not
required. So just remove it.
$ mount /dev/sda5 /btrfs
BTRFS info (device sda5): cannot continue dev_replace, tgtdev is missing
BTRFS info (device sda5): you may cancel the operation after 'mount -o degraded'
$ mount -o degraded /dev/sda5 /btrfs <-- success.
$ btrfs replace cancel /btrfs
kernel: assertion failed: ret != -ENOTCONN, in fs/btrfs/dev-replace.c:1131
kernel: ------------[ cut here ]------------
kernel: kernel BUG at fs/btrfs/ctree.h:3750!
After the patch:
$ btrfs replace cancel /btrfs
BTRFS info (device sda5): suspended dev_replace from /dev/sda5 (devid 1) to <missing disk> canceled
Fixes: fe97e2e173af ("btrfs: dev-replace: replace's scrub must not be running in suspended state")
CC: stable@vger.kernel.org # 5.0+
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/dev-replace.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index f43196a893ca..b1cddef87cd3 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -1129,8 +1129,7 @@ int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info) up_write(&dev_replace->rwsem); /* Scrub for replace must not be running in suspended state */ - ret = btrfs_scrub_cancel(fs_info); - ASSERT(ret != -ENOTCONN); + btrfs_scrub_cancel(fs_info); trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { |