Messages in this thread | | | Date | Tue, 9 Jun 2020 12:20:15 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCHv5 3/5] ext4: mballoc: Introduce pcpu seqcnt for freeing PA to improve ENOSPC handling |
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On Wed, Jun 03, 2020 at 03:40:16PM +0530, Ritesh Harjani wrote: > Yes, this is being discussed in the community. > I have submitted a patch which should help fix this warning msg. > Feel free to give this a try on your setup. > > https://marc.info/?l=linux-ext4&m=159110574414645&w=2
I just triggered the same thing here too. Looking at your fix and not even pretending to know what's going on with that percpu sequence counting, I can't help but wonder why do you wanna do:
seq = *raw_cpu_ptr(&discard_pa_seq);
instead of simply doing:
seq = this_cpu_read(discard_pa_seq);
?
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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