[RFC PATCH 1/2] mm/mmu_gather: Invalidate TLB correctly on batch allocation failure and flush

Architectures for which we have hardware walkers of Linux page table should flush TLB on mmu gather batch allocation failures and batch flush. Some architectures like POWER supports multiple translation modes (hash and radix) and in the case of POWER only radix translation mode needs the above TLBI

Re: [PATCH v11 23/25] mm/gup: track FOLL_PIN pages

On Mon 16-12-19 14:18:59, John Hubbard wrote: > On 12/16/19 4:53 AM, Jan Kara wrote: > > With this fixed, the patch looks good to me so you can then add: > > > > Reviewed-by: Jan Kara > > > > Honza > > > > btw, thanks for the thorough

Re: [PATCH v11 00/25] mm/gup: track dma-pinned pages: FOLL_PIN

Hi! On Mon 16-12-19 14:25:12, John Hubbard wrote: > Hi, > > This implements an API naming change (put_user_page*() --> > unpin_user_page*()), and also implements tracking of FOLL_PIN pages. It > extends that tracking to a few select subsystems. More subsystems will > be added in follow up work.

[PATCH] powerpc/512x: Use dma_request_chan() instead dma_request_slave_channel()

dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi --- arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 6 +++--- 1 file changed, 3

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