From patchwork Thu Apr 7 17:06:13 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Mills X-Patchwork-Id: 693021 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p37H6Kjp027176 for ; Thu, 7 Apr 2011 17:06:39 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756334Ab1DGRGU (ORCPT ); Thu, 7 Apr 2011 13:06:20 -0400 Received: from frost.carfax.org.uk ([212.13.194.111]:2822 "EHLO frost.carfax.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756280Ab1DGRGS (ORCPT ); Thu, 7 Apr 2011 13:06:18 -0400 Received: from ruthven.carfax.org.uk ([10.0.0.10]) by frost.carfax.org.uk with esmtp (Exim 4.69) (envelope-from ) id 1Q7sev-00087I-5w; Thu, 07 Apr 2011 17:06:17 +0000 Received: from [10.0.0.10] (helo=ruthven.carfax.org.uk) by ruthven.carfax.org.uk with esmtp (Exim 4.72) (envelope-from ) id 1Q7seu-0000oT-Sy; Thu, 07 Apr 2011 18:06:16 +0100 From: Hugo Mills To: linux-btrfs@vger.kernel.org, chris.mason@oracle.com Subject: [PATCH v4 6/8] btrfs: Balance filter for virtual address ranges Date: Thu, 7 Apr 2011 18:06:13 +0100 Message-Id: <1302195975-3088-7-git-send-email-hugo@carfax.org.uk> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1302195975-3088-1-git-send-email-hugo@carfax.org.uk> References: <1302195975-3088-1-git-send-email-hugo@carfax.org.uk> X-frost.carfax.org.uk-Spam-Score: -0.0 (/) X-frost.carfax.org.uk-Spam-Report: Spam detection software, running on the system "spamd3.lon.bitfolk.com", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Allow the balancing of chunks where some part of the chunk lies within the virtual (i.e. btrfs-internal) address range passed. Signed-off-by: Hugo Mills --- fs/btrfs/ioctl.h | 9 +++++++-- fs/btrfs/volumes.c | 6 ++++++ 2 files changed, 13 insertions(+), 2 deletions(-) [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Thu, 07 Apr 2011 17:06:39 +0000 (UTC) Allow the balancing of chunks where some part of the chunk lies within the virtual (i.e. btrfs-internal) address range passed. Signed-off-by: Hugo Mills --- fs/btrfs/ioctl.h | 9 +++++++-- fs/btrfs/volumes.c | 6 ++++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 29627ca..5177229 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -167,7 +167,8 @@ struct btrfs_ioctl_balance_progress { #define BTRFS_BALANCE_FILTER_CHUNK_TYPE 0x2 #define BTRFS_BALANCE_FILTER_DEVID 0x4 -#define BTRFS_BALANCE_FILTER_MASK 0x7 /* Logical or of all filter +#define BTRFS_BALANCE_FILTER_VIRTUAL_ADDRESS_RANGE 0x8 +#define BTRFS_BALANCE_FILTER_MASK 0xf /* Logical or of all filter * flags -- effectively versions * the filtered balance ioctl */ @@ -187,7 +188,11 @@ struct btrfs_ioctl_balance_start { /* For FILTER_DEVID */ __u64 devid; - __u64 spare[505]; /* Make up the size of the structure to 4088 + /* For FILTER_VIRTUAL_ADDRESS_RANGE */ + __u64 vrange_start; + __u64 vrange_end; + + __u64 spare[503]; /* Make up the size of the structure to 4088 * bytes for future expansion */ }; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 4f215e7..4c1b5a6 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2070,6 +2070,12 @@ int balance_chunk_filter(struct btrfs_ioctl_balance_start *filter, if (!res) return 0; } + if (filter->flags & BTRFS_BALANCE_FILTER_VIRTUAL_ADDRESS_RANGE) { + u64 start = key->offset; + u64 end = start + btrfs_chunk_length(eb, chunk); + if (filter->vrange_start >= end || start >= filter->vrange_end) + return 0; + } return 1; }