From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, tmricht@linux.ibm.com,
alexander.shishkin@linux.intel.com
Subject: Re: [PATCH] perf: Fix the mlock accounting, again
Date: Fri, 15 Nov 2019 18:17:34 +0200 [thread overview]
Message-ID: <878sohdsgx.fsf@ashishki-desk.ger.corp.intel.com> (raw)
In-Reply-To: <20191115160818.6480-1-alexander.shishkin@linux.intel.com>
Alexander Shishkin <alexander.shishkin@linux.intel.com> writes:
> Commit
>
> 5e6c3c7b1ec2 ("perf/aux: Fix tracking of auxiliary trace buffer allocation")
>
> tried to guess the correct combination of arithmetic operations that would
> undo the AUX buffer's mlock accounting, and failed, leaking the bottom part
> when an allocation needs to be changed partially to both user->locked_vm
s/changed/charged/
next prev parent reply other threads:[~2019-11-15 16:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-15 16:08 Alexander Shishkin
2019-11-15 16:17 ` Alexander Shishkin [this message]
2019-11-18 14:16 ` Thomas Richter
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