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btrfs: dev-replace: go back to suspended state if target device is missing
commit0d228ece59
upstream. At the time of forced unmount we place the running replace to BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED state, so when the system comes back and expect the target device is missing. Then let the replace state continue to be in BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED state instead of BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED as there isn't any matching scrub running as part of replace. Fixes:e93c89c1aa
("Btrfs: add new sources for device replace code") CC: stable@vger.kernel.org # 4.4+ Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -804,6 +804,8 @@ int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info)
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"cannot continue dev_replace, tgtdev is missing");
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btrfs_info(fs_info,
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"you may cancel the operation after 'mount -o degraded'");
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dev_replace->replace_state =
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BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED;
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btrfs_dev_replace_unlock(dev_replace, 1);
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return 0;
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}
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