linux-kernel - Re: [PATCH] scsi: replace GFP_ATOMIC with GFP

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Message-ID: <1550689891.93548.31.camel@acm.org>
Date:   Wed, 20 Feb 2019 11:11:31 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     Benjamin Block <bblock@...ux.ibm.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     Steffen Maier <maier@...ux.ibm.com>, linux-scsi@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: replace GFP_ATOMIC with GFP_KERNEL for sdev
 allocation

On Wed, 2019-02-20 at 19:48 +0100, Benjamin Block wrote:
> We had a test-report where, under memory pressure, adding LUNs to the
> systems would fail (the tests add LUNs strictly in sequence):

Hi Benjamin,

There are two more instances of GFP_ATOMIC in scsi_scan.c. Have you verified
whether or not it is safe to change these into GFP_KERNEL too?

Thanks,

Bart.