From: Sage Weil <sage@newdream.net>
Date: Tue, 16 Nov 2010 19:14:34 +0000 (-0800)
Subject: ceph: add dir_layout to inode
X-Git-Tag: v2.6.38-rc1~239^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c0f3af72cb1622a66962a1180c36ef8c41be8e2;p=pandora-kernel.git

ceph: add dir_layout to inode

Add a ceph_dir_layout to the inode, and calculate dentry hash values based
on the parent directory's specified dir_hash function.  This is needed
because the old default Linux dcache hash function is extremely week and
leads to a poor distribution of files among dir fragments.

Signed-off-by: Sage Weil <sage@newdream.net>
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