Thread (5 messages) 5 messages, 3 authors, 2019-05-14

RE: [PATCH] hv_sock: Fix data loss upon socket close

From: Sunil Muthuswamy <hidden>
Date: 2019-05-14 16:33:36
Also in: lkml, netdev

-----Original Message-----
From: linux-hyperv-owner@vger.kernel.org <redacted> On Behalf Of David Miller
Sent: Thursday, May 9, 2019 1:58 PM
To: Sunil Muthuswamy <redacted>
Cc: KY Srinivasan <kys@microsoft.com>; Haiyang Zhang <haiyangz@microsoft.com>; Stephen Hemminger
[off-list ref]; sashal@kernel.org; Dexuan Cui [off-list ref]; Michael Kelley [off-list ref];
netdev@vger.kernel.org; linux-hyperv@vger.kernel.org; linux-kernel@vger.kernel.org
Subject: Re: [PATCH] hv_sock: Fix data loss upon socket close

From: Sunil Muthuswamy <redacted>
Date: Wed, 8 May 2019 23:10:35 +0000
quoted
+static inline void hvs_shutdown_lock_held(struct hvsock *hvs, int mode)
Please do not use the inline keyword in foo.c files, let the compiler decide.
Thanks, will fix in the next version.
Also, longer term thing, I notice that vsock_remove_socket() is very
inefficient locking-wise.  It takes the table lock to do the placement
test, and takes it again to do the removal.  Might even be racy.
Agreed. The check & remove should be done as an atomic operation.
This can be taken up as a separate patch.
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