linux-kernel - Re: [PATCH 1/2] Revert "PCI/IOV: Serialize sysfs sriov

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Date: Mon, 25 Dec 2023 13:20:08 +0200
From: Leon Romanovsky <leonro@...dia.com>
To: Jim Harris <jim.harris@...sung.com>
CC: Bjorn Helgaas <bhelgaas@...gle.com>, "linux-pci@...r.kernel.org"
	<linux-pci@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Jason Gunthorpe <jgg@...dia.com>, "Alex
 Williamson" <alex.williamson@...hat.com>
Subject: Re: [PATCH 1/2] Revert "PCI/IOV: Serialize sysfs sriov_numvfs reads
 vs writes"

On Wed, Dec 20, 2023 at 10:58:17PM +0000, Jim Harris wrote:
> The proper way to detect a change to the num_VFs value is to listen for a
> sysfs event, not to add a device_lock() on the attribute _show() in the
> kernel.
> 
> This reverts commit 35ff867b76576e32f34c698ccd11343f7d616204.
> Revert had a small conflict, the sprintf() is now changed to sysfs_emit().
> 
> Suggested-by: Leon Romanovsky <leonro@...dia.com>
> Signed-off-by: Jim Harris <jim.harris@...sung.com>
> ---
>  drivers/pci/iov.c |    8 +-------
>  1 file changed, 1 insertion(+), 7 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...dia.com>