From: Jim Schutt <jaschut@sandia.gov>
Date: Wed, 29 Feb 2012 15:30:58 +0000 (-0700)
Subject: net/ceph: Only clear SOCK_NOSPACE when there is sufficient space in the socket buffer
X-Git-Tag: v3.4-rc1~76^2~64
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=182fac2689b769a96e7fc9defcd560c5cca92b1e;p=pandora-kernel.git

net/ceph: Only clear SOCK_NOSPACE when there is sufficient space in the socket buffer

The Ceph messenger would sometimes queue multiple work items to write
data to a socket when the socket buffer was full.

Fix this problem by making ceph_write_space() use SOCK_NOSPACE in the
same way that net/core/stream.c:sk_stream_write_space() does, i.e.,
clearing it only when sufficient space is available in the socket buffer.

Signed-off-by: Jim Schutt <jaschut@sandia.gov>
Reviewed-by: Alex Elder <elder@dreamhost.com>
---

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