Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS

[PATCH v2 0/3] phase out CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-17
[PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-17
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-18
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-24
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-26
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-26
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-27
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Geert Uytterhoeven <geert@linux-m68k.org> · 2022-06-27
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-27
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Christoph Hellwig <hch@infradead.org> · 2022-06-29
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-30
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Geert Uytterhoeven <geert@linux-m68k.org> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Arnd Bergmann <arnd@kernel.org> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Bart Van Assche <bvanassche@acm.org> · 2022-06-28
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-29
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-29
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Christoph Hellwig <hch@infradead.org> · 2022-06-29
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Michael Schmitz <schmitzmic@gmail.com> · 2022-06-30
RE: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · David Laight <hidden> · 2022-06-30
Re: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · Christophe Leroy <hidden> · 2022-06-30
RE: [PATCH v2 3/3] arch/*/: remove CONFIG_VIRT_TO_BUS · David Laight <hidden> · 2022-06-30
[PATCH v2 1/3] scsi: dpt_i2o: drop stale VIRT_TO_BUS dependency · Arnd Bergmann <arnd@kernel.org> · 2022-06-17
Re: [PATCH v2 1/3] scsi: dpt_i2o: drop stale VIRT_TO_BUS dependency · Hannes Reinecke <hare@suse.de> · 2022-06-21
[PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Arnd Bergmann <arnd@kernel.org> · 2022-06-17
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Robin Murphy <robin.murphy@arm.com> · 2022-06-17
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Hannes Reinecke <hare@suse.de> · 2022-06-21
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Khalid Aziz <khalid@gonehiking.org> · 2022-06-21
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Arnd Bergmann <arnd@kernel.org> · 2022-06-23
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Khalid Aziz <khalid@gonehiking.org> · 2022-06-24
Re: [PATCH v2 2/3] scsi: BusLogic remove bus_to_virt · Arnd Bergmann <arnd@kernel.org> · 2022-06-24

From: Christoph Hellwig <hch@infradead.org>
Date: 2022-06-29 06:22:04
Also in: linux-alpha, linux-arch, linux-iommu, linux-m68k, linux-scsi, lkml

On Wed, Jun 29, 2022 at 11:09:00AM +1200, Michael Schmitz wrote:

And all SCSI buffers are allocated using kmalloc? No way at all for user
space to pass unaligned data?

Most that you will see actually comes from the page allocator.  But
the block layer has a dma_alignment limit, and when userspace sends
I/O that is not properly aligned it will be bounce buffered before
it it sent to the driver.

`h`	back out one level
`j`	next message in thread
`k`	previous message in thread
`l`	drill in
`Esc`	close help / fold thread tree
`?`	toggle this help