From: Mark Fasheh <mfasheh@suse.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 08/15] ocfs2: Add extended attribute support v2
Date: Thu, 17 Jul 2008 11:11:03 -0700 [thread overview]
Message-ID: <20080717181103.GI28014@wotan.suse.de> (raw)
In-Reply-To: <487F1335.4020303@oracle.com>
On Thu, Jul 17, 2008 at 05:39:01PM +0800, Tiger Yang wrote:
> Do we really need take space(32 bytes) in superblock to store this hash
> value? For the space in superblock is very precious.
No, we don't need 32 bytes. We need to only use 32 *bits*. Mkfs.ocfs2 should
calculate the seed value as you already do in kernel and store it there.
That way uuid can change, but the hash stays the same, ensuring that we'll
be able to find xattrs on a volume that has been dd'd or snapshotted.
--Mark
--
Mark Fasheh
next prev parent reply other threads:[~2008-07-17 18:11 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-27 6:39 [Ocfs2-devel] [PATCH 0/15] ocfs2: Add extended attributes for ocfs2. V2 Tao Ma
2008-06-27 6:59 ` [Ocfs2-devel] [PATCH 01/15] Modify ocfs2_num_free_extents for future xattr usage. v2 Tao Ma
2008-06-27 7:00 ` [Ocfs2-devel] [PATCH 02/15] Use ocfs2_extent_list instead of ocfs2_dinode. v2 Tao Ma
2008-06-27 7:00 ` [Ocfs2-devel] [PATCH 03/15] Abstract ocfs2_extent_tree in b-tree operations. v2 Tao Ma
2008-06-27 7:00 ` [Ocfs2-devel] [PATCH 04/15] Make extend allocation generic.v2 Tao Ma
2008-06-27 7:01 ` [Ocfs2-devel] [PATCH 05/15] Add xattr header in ocfs2.v2 Tao Ma
2008-07-09 22:59 ` Mark Fasheh
2008-07-10 4:50 ` Tao Ma
2008-07-17 0:30 ` Mark Fasheh
2008-07-19 0:44 ` Joel Becker
2008-06-27 7:01 ` [Ocfs2-devel] [PATCH 06/15] Add extent tree operation for xattr value.v2 Tao Ma
2008-07-09 23:10 ` Mark Fasheh
2008-07-10 4:30 ` Tao Ma
2008-06-27 7:01 ` [Ocfs2-devel] [PATCH 09/15] Add helper function in uptodate for removing xattr clusters.v2 Tao Ma
2008-07-10 23:15 ` Mark Fasheh
2008-07-10 23:19 ` Mark Fasheh
2008-06-27 7:02 ` [Ocfs2-devel] [PATCH 10/15] Add xattr tree operations in ocfs2_extent_tree.v2 Tao Ma
2008-06-27 7:02 ` [Ocfs2-devel] [PATCH 11/15] Add xattr bucket iteration for large numbers of EAs.v2 Tao Ma
2008-07-11 20:32 ` Mark Fasheh
2008-07-11 23:52 ` Tao Ma
2008-07-11 23:58 ` Mark Fasheh
2008-06-27 7:02 ` [Ocfs2-devel] [PATCH 12/15] Add xattr find process for xattr index btree.v2 Tao Ma
2008-07-11 23:59 ` Mark Fasheh
2008-07-12 0:42 ` Tao Ma
2008-07-18 0:47 ` Mark Fasheh
2008-06-27 7:02 ` [Ocfs2-devel] [PATCH 13/15] Enable xattr set in " Tao Ma
2008-07-18 0:30 ` Mark Fasheh
2008-06-27 7:03 ` [Ocfs2-devel] [PATCH 14/15] Delete all xattr buckets in inode removal.v2 Tao Ma
2008-06-27 7:27 ` [Ocfs2-devel] [PATCH 07/15] ocfs2: reserve inline space for extended attribute v2 Tiger Yang
2008-06-27 7:27 ` [Ocfs2-devel] [PATCH 08/15] ocfs2: Add extended attribute support v2 Tiger Yang
2008-06-27 7:27 ` [Ocfs2-devel] [PATCH 15/15] ocfs2: Add incompatible flag for extended attribute v2 Tiger Yang
2008-07-10 23:00 ` Mark Fasheh
2008-07-10 23:22 ` Joel Becker
2008-07-10 23:34 ` Mark Fasheh
2008-07-16 3:06 ` Tiger Yang
2008-07-16 17:39 ` Joel Becker
2008-07-10 23:11 ` [Ocfs2-devel] [PATCH 08/15] ocfs2: Add extended attribute support v2 Mark Fasheh
2008-07-11 2:21 ` tristan
2008-07-11 9:39 ` Tiger Yang
2008-07-17 9:34 ` Tiger Yang
2008-07-17 18:13 ` Mark Fasheh
2008-07-25 9:10 ` Tiger Yang
2008-07-11 19:47 ` Mark Fasheh
2008-07-17 9:39 ` Tiger Yang
2008-07-17 18:11 ` Mark Fasheh [this message]
2008-07-15 21:28 ` Mark Fasheh
2008-07-10 1:24 ` [Ocfs2-devel] [PATCH 07/15] ocfs2: reserve inline space for extended attribute v2 Mark Fasheh
2008-07-11 8:55 ` Tiger Yang
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