git: 24a3897c2c32 - main - x86 bounce_bus_dmamem_alloc(): use malloc_aligned() only when possible
Shawn Webb
shawn.webb at hardenedbsd.org
Sat Sep 25 16:24:43 UTC 2021
On Sat, Sep 25, 2021 at 10:55:28AM -0500, Kyle Evans wrote:
> On Sat, Sep 25, 2021 at 8:18 AM Shawn Webb <shawn.webb at hardenedbsd.org> wrote:
> >
> > On Sat, Sep 25, 2021 at 01:11:31PM +0000, Konstantin Belousov wrote:
> > > The branch main has been updated by kib:
> > >
> > > URL: https://cgit.FreeBSD.org/src/commit/?id=24a3897c2c3205c2ec0cf323c555c403d3171e2c
> > >
> > > commit 24a3897c2c3205c2ec0cf323c555c403d3171e2c
> > > Author: Konstantin Belousov <kib at FreeBSD.org>
> > > AuthorDate: 2021-09-24 17:46:47 +0000
> > > Commit: Konstantin Belousov <kib at FreeBSD.org>
> > > CommitDate: 2021-09-25 12:58:12 +0000
> > >
> > > x86 bounce_bus_dmamem_alloc(): use malloc_aligned() only when possible
> > >
> > > malloc_domainset_aligned() requires that alignment is less than
> > > page size. Fall back to other allocation methods, most likely
> > > kmem_alloc_contig(), when malloc_aligned() cannot fullfill the driver
> > > request.
> > >
> > > Reported by: Loic F <loic.f at hardenedbsd.org>
> > > Reviewed by: markj
> > > Sponsored by: The FreeBSD Foundation
> > > MFC after: 1 week
> > > Differential revision: https://reviews.freebsd.org/D32127
> >
> > Wrong Differential revision URL? The patch in the URL doesn't match
> > what was committed here.
> >
>
> No; there were two patches included, and Phabricator always updates
> the diff to the first one that closed it. You can check the history on
> the diff to find the last one pre-commit.
Cool. Thanks for the clarification!
--
Shawn Webb
Cofounder / Security Engineer
HardenedBSD
https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc
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