Messages in this thread | | | Date | Wed, 15 Jun 2022 15:27:54 +0200 | From | David Sterba <> | Subject | Re: [PATCH] btrfs: Replace kmap() with kmap_local_page() in zstd.c |
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On Tue, Jun 14, 2022 at 10:07:34AM -0700, Ira Weiny wrote: > On Tue, Jun 14, 2022 at 06:28:48PM +0200, Fabio M. De Francesco wrote: > > On martedì 14 giugno 2022 16:25:21 CEST David Sterba wrote: > > > On Tue, Jun 14, 2022 at 01:22:50AM +0200, Fabio M. De Francesco wrote: > > > > On lunedì 13 giugno 2022 20:39:13 CEST David Sterba wrote: > > > > > On Sat, Jun 11, 2022 at 03:52:03PM +0200, Fabio M. De Francesco > > > > > A better solution is changing the prototype of __kunmap_local(); I > > > > suppose that Andrew won't object, but who knows? > > > > > > > > (+Cc Andrew Morton). > > > > > > > > I was waiting for your comments. At now I've done about 15 conversions > > > > across the kernel but it's the first time I had to pass a pointer to > > const > > > > void to kunmap_local(). Therefore, I was not sure if changing the API > > were > > > > better suited (however I have already discussed this with Ira). > > > > > > IMHO it should be fixed in the API. > > > > > I agree with you in full. > > > > At the same time when you sent this email I submitted a patch to change > > kunmap_local() and kunmap_atomic(). > > > > After Andrew takes them I'll send v2 of this patch to zstd.c without those > > unnecessary casts. > > David, > > Would you be willing to take this through your tree as a pre-patch to the kmap > changes in btrfs? > > That would be easier for Fabio and probably you and Andrew in the long run.
Yes, no problem. I could probably send all the kmap conversions after tests so it does not need to wait until the next cycle.
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