From: Boaz Harrosh <bharrosh@panasas.com>
Date: Mon, 31 Oct 2011 21:45:46 +0000 (-0700)
Subject: pnfs-obj: Return PNFS_NOT_ATTEMPTED in case of read/write_pagelist
X-Git-Tag: v3.2-rc1~52^2~1^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6c40fe3f4c4967f1cb486191ed4a5d5f55f3f7e;p=pandora-kernel.git

pnfs-obj: Return PNFS_NOT_ATTEMPTED in case of read/write_pagelist

objlayout driver was always returning PNFS_ATTEMPTED from it's
read/write_pagelist operations. Even on error. Fix that.

Start by establishing an error return API from io-engine, by
not returning ssize_t (length-or-error) but returning "int"
0=OK, 0>Error. And clean up all return types in io-engine.

Then if io-engine returned error return PNFS_NOT_ATTEMPTED
to generic layer. (With a dprint)

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