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Message-ID: <d573956a-c257-0bda-b78b-75d8e0a1c982@wanadoo.fr>
Date: Tue, 19 Jul 2022 07:52:55 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Alexander Gordeev <agordeev@...ux.ibm.com>
Cc: Niklas Schnelle <schnelle@...ux.ibm.com>,
Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
linux-s390@...r.kernel.org
Subject: Re: [PATCH] s390/pci: Use the bitmap API to allocate bitmaps
Le 14/07/2022 à 07:22, Alexander Gordeev a écrit :
> On Sat, Jul 09, 2022 at 06:11:28PM +0200, Christophe JAILLET wrote:
>> I don't know why commit c506fff3d3a8 ("s390/pci: resize iomap") has turned
>> this bitmap from a statically defined bitmap to a runtime-allocated one.
>
> c506fff3d3a8 commit message:
>
> This reduces the size of the iomap from 256K to less than 4K
> (using the defconfig).
>
Hi,
IIUC, going from ZPCI_IOMAP_MAX_ENTRIES to ZPCI_IOMAP_ENTRIES reduced
the size, not going from DECLARE_BITMAP() to kcalloc().
CJ
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