From: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Date: Sun, 25 Jul 2010 11:39:03 +0000 (+0900)
Subject: nilfs2: avoid rec_len overflow with 64KB block size
X-Git-Tag: v2.6.36-rc1~500^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6cda9fa2575ec0869fe77b0bdf295c0e51868cab;p=pandora-kernel.git

nilfs2: avoid rec_len overflow with 64KB block size

With 64KB blocksize, a directory entry can have size 64KB which does
not fit into 16 bits we have for entry length.  So this patch stores
0xffff instead and converts value when read from / written to disk.

Nilfs derives its directory implementation from ext2 filesystem, and
this draws upon the corresponding change on ext2.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
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