From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ee0-f43.google.com ([74.125.83.43]:42006 "EHLO mail-ee0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932294Ab3BLQ3F (ORCPT ); Tue, 12 Feb 2013 11:29:05 -0500 Received: by mail-ee0-f43.google.com with SMTP id c50so157444eek.16 for ; Tue, 12 Feb 2013 08:29:03 -0800 (PST) From: Ilya Dryomov To: linux-btrfs@vger.kernel.org Cc: Chris Mason , idryomov@gmail.com Subject: [PATCH] Btrfs: allow for selecting only completely empty chunks Date: Tue, 12 Feb 2013 18:28:59 +0200 Message-Id: <1360686539-22720-1-git-send-email-idryomov@gmail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Enhance balance usage filter by making it possible to balance out only completely empty chunks. Today, usage filter properly acts on values from 1 to 99 inclusive, usage=100 selects all chunks, and usage=0 selects no chunks. This commit changes the usage=0 case: the new meaning is to restripe only completely empty chunks and nothing else. Suggested-by: David Sterba Signed-off-by: Ilya Dryomov --- fs/btrfs/volumes.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 15f6efd..7e41619 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2615,7 +2615,7 @@ static int chunk_usage_filter(struct btrfs_fs_info *fs_info, u64 chunk_offset, chunk_used = btrfs_block_group_used(&cache->item); if (bargs->usage == 0) - user_thresh = 0; + user_thresh = 1; else if (bargs->usage > 100) user_thresh = cache->key.offset; else -- 1.7.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-