From 4ef2e4f84c523ebbc930ce05fa27b9b1350f4a4b Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Thu, 5 Feb 2015 17:27:39 -0500
Subject: [PATCH] NFSv4.1: Fix pnfs_put_lseg races

pnfs_layoutreturn_free_lseg_async() can also race with inode put in
the general case. We can now fix this, and also simplify the code.

Cc: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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