From: Wengang Wang <wen.gang.wang@oracle.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 13/15] ocfs2: ocfs2_group_bitmap_size has to handle old volume.
Date: Thu, 1 Apr 2010 12:34:31 +0800 [thread overview]
Message-ID: <20100401043431.GA2629@laptop.oracle.com> (raw)
In-Reply-To: <4BB41FA0.8070804@oracle.com>
On 10-04-01 12:22, Tao Ma wrote:
> Hi Joel,
>
> Joel Becker wrote:
> > On Thu, Apr 01, 2010 at 10:59:10AM +0800, Tao Ma wrote:
> >> ocfs2_group_bitmap_size has to handle the case when the
> >> volume don't have discontiguous block group support.
> >
> > NAK. We specify 256 in all cases. This doesn't hurt old code
> > because we've never used more bits. Even though our old bg_size values
> > were much larger, we never used that space because bg_bits was set to
> > the smaller value.
> No, it hurts.
Hi,
> So with an old ocfs2-tools and a new kernel, the new kernel will set it
> to 256 while the old ocfs2-tools refused to work by checking bg_size(see
> chainalloc_process_group in libocfs2).
Just for my info.
Is "old ocfs2-tools + new kernel" supported?
regards,
wengang.
next prev parent reply other threads:[~2010-04-01 4:34 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-01 2:53 [Ocfs2-devel] [PATCH 0/15] ocfs2: Support for discontiguous block group Tao Ma
2010-04-01 2:58 ` [Ocfs2-devel] [PATCH 01/15] ocfs2: Define data structures for discontiguous block groups Tao Ma
2010-04-01 2:58 ` [Ocfs2-devel] [PATCH 02/15] ocfs2: Allocate " Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 03/15] ocfs2: Pass suballocation results back via a structure Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 04/15] ocfs2: Add suballoc_loc to metadata blocks Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 05/15] ocfs2: ocfs2_claim_suballoc_bits() doesn't need an osb argument Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 06/15] ocfs2: Trim suballocations if they cross discontiguous regions Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 07/15] ocfs2: ocfs2_claim_*() don't need an ocfs2_super argument Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 08/15] ocfs2: Return allocated metadata blknos on the ocfs2_suballoc_result Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 09/15] ocfs2: Set suballoc_loc on allocated metadata Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 10/15] ocfs2: Grow discontig block groups in one transaction Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 11/15] ocfs2: Don't relink cluster groups when allocating discontig block groups Tao Ma
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 12/15] ocfs2: Some tiny bug fixes for discontiguous block allocation Tao Ma
2010-04-01 3:34 ` Joel Becker
2010-04-01 4:32 ` Tao Ma
2010-04-01 17:44 ` Joel Becker
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 13/15] ocfs2: ocfs2_group_bitmap_size has to handle old volume Tao Ma
2010-04-01 3:38 ` Joel Becker
2010-04-01 4:22 ` Tao Ma
2010-04-01 4:34 ` Wengang Wang [this message]
2010-04-01 4:39 ` Tao Ma
2010-04-01 4:50 ` Tao Ma
2010-04-01 7:40 ` Joel Becker
2010-04-01 7:39 ` Joel Becker
2010-04-01 7:38 ` Joel Becker
2010-04-01 7:37 ` Joel Becker
2010-04-01 7:46 ` Tao Ma
2010-04-01 17:53 ` Joel Becker
2010-04-01 23:32 ` Tao Ma
2010-04-01 23:43 ` Joel Becker
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 14/15] ocfs2: Free block to the right block group Tao Ma
2010-04-01 3:42 ` Joel Becker
2010-04-01 2:59 ` [Ocfs2-devel] [PATCH 15/15] ocfs2: enable discontig block group support Tao Ma
2010-04-01 3:43 ` Joel Becker
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