From: Boaz Harrosh <bharrosh@panasas.com>
Date: Tue, 16 Nov 2010 18:09:58 +0000 (+0200)
Subject: exofs: Add offset/length to exofs_get_io_state
X-Git-Tag: v3.1-rc1~8^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1042ba0991aab80ced34f7dade6ec25f22b4304;p=pandora-kernel.git

exofs: Add offset/length to exofs_get_io_state

In future raid code we will need to know the IO offset/length
and if it's a read or write to determine some of the array
sizes we'll need.

So add a new exofs_get_rw_state() API for use when
writeing/reading. All other simple cases are left using the
old way.

The major change to this is that now we need to call
exofs_get_io_state later at inode.c::read_exec and
inode.c::write_exec when we actually know these things. So this
patch is kept separate so I can test things apart from other
changes.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
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