linux-kernel - RE: [PATCH 7/6] Documentation/infiniband: update from locked to pinned

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Message-ID: <2807E5FD2F6FDA4886F6618EAC48510E79BCF60F@CRSMSX101.amr.corp.intel.com>
Date:   Tue, 12 Feb 2019 00:35:08 +0000
From:   "Weiny, Ira" <ira.weiny@...el.com>
To:     Davidlohr Bueso <dave@...olabs.net>, "jgg@...pe.ca" <jgg@...pe.ca>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
CC:     "dledford@...hat.com" <dledford@...hat.com>,
        "jgg@...lanox.com" <jgg@...lanox.com>,
        "jack@...e.cz" <jack@...e.cz>,
        "willy@...radead.org" <willy@...radead.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 7/6] Documentation/infiniband: update from locked to
 pinned_vm

> -----Original Message-----
> From: Davidlohr Bueso [mailto:dave@...olabs.net]
> Sent: Wednesday, February 06, 2019 5:32 PM
> To: jgg@...pe.ca; akpm@...ux-foundation.org
> Cc: dledford@...hat.com; jgg@...lanox.com; jack@...e.cz;
> willy@...radead.org; Weiny, Ira <ira.weiny@...el.com>; linux-
> rdma@...r.kernel.org; linux-mm@...ck.org; linux-kernel@...r.kernel.org
> Subject: [PATCH 7/6] Documentation/infiniband: update from locked to
> pinned_vm
> 
> We are really talking about pinned_vm here.
> 
> Signed-off-by: Davidlohr Bueso <dbueso@...e.de>

Reviewed-by: Ira Weiny <ira.weiny@...el.com>

> ---
>  Documentation/infiniband/user_verbs.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/infiniband/user_verbs.txt
> b/Documentation/infiniband/user_verbs.txt
> index df049b9f5b6e..47ebf2f80b2b 100644
> --- a/Documentation/infiniband/user_verbs.txt
> +++ b/Documentation/infiniband/user_verbs.txt
> @@ -46,11 +46,11 @@ Memory pinning
>    I/O targets be kept resident at the same physical address.  The
>    ib_uverbs module manages pinning and unpinning memory regions via
>    get_user_pages() and put_page() calls.  It also accounts for the
> -  amount of memory pinned in the process's locked_vm, and checks that
> +  amount of memory pinned in the process's pinned_vm, and checks that
>    unprivileged processes do not exceed their RLIMIT_MEMLOCK limit.
> 
>    Pages that are pinned multiple times are counted each time they are
> -  pinned, so the value of locked_vm may be an overestimate of the
> +  pinned, so the value of pinned_vm may be an overestimate of the
>    number of pages pinned by a process.
> 
>  /dev files
> --
> 2.16.4