lkml.org 
[lkml]   [2016]   [May]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] NVMe: Only release requested regions
On Thu, May 12, 2016 at 12:03:52AM -0700, Christoph Hellwig wrote:
> > static void nvme_dev_unmap(struct nvme_dev *dev)
> > {
> > + struct pci_dev *pdev = to_pci_dev(dev->dev);
> > + int bars;
> > +
> > if (dev->bar)
> > iounmap(dev->bar);
> > - pci_release_regions(to_pci_dev(dev->dev));
> > +
> > + bars = pci_select_bars(pdev, IORESOURCE_MEM);
> > + pci_release_selected_regions(pdev, bars);
>
> This looks fine, but I really hate this API.
>
> Can someone add these two nice helpers to pci.h:

Well I could send a patch, but then this is your code...

>
> static inline int
> pci_request_mem_regions(struct pci_dev *pdev, const char *name)
> {
> return pci_request_selected_regions(pdev,
> pci_select_bars(pdev, IORESOURCE_MEM), name);
> }
>
> static inline void
> pci_release_mem_regions(struct pci_dev *pdev)
> {
> return pci_release_selected_regions(pdev,
> pci_select_bars(pdev, IORESOURCE_MEM));
> }
>
> But for now this should do it:
>
> Reviewed-by: Christoph Hellwig <hch@lst.de>

Thanks

--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850

\
 
 \ /
  Last update: 2016-05-12 09:41    [W:0.090 / U:0.080 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site