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btrfs: check if the transaction was aborted at btrfs_wait_for_commit()
commitbf7ecbe987
upstream. At btrfs_wait_for_commit() we wait for a transaction to finish and then always return 0 (success) without checking if it was aborted, in which case the transaction didn't happen due to some critical error. Fix this by checking if the transaction was aborted. Fixes:462045928b
("Btrfs: add START_SYNC, WAIT_SYNC ioctls") CC: stable@vger.kernel.org # 4.19+ Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -933,6 +933,7 @@ int btrfs_wait_for_commit(struct btrfs_fs_info *fs_info, u64 transid)
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}
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wait_for_commit(cur_trans, TRANS_STATE_COMPLETED);
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ret = cur_trans->aborted;
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btrfs_put_transaction(cur_trans);
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out:
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return ret;
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