Re: [PATCH 2/2] Revert "splice: Do splice read from a buffered file without using ITER_PIPE"

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Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:

> next-20230213 introduced commit d9722a475711 ("splice: Do splice read from
> a buffered file without using ITER_PIPE") which broke booting on any
> Qualcomm ARM64 device I grabbed, dereferencing a null pointer in
> generic_filesplice_read+0xf8/x598. Revert it to make the devices
> bootable again.
> 
> This reverts commit d9722a47571104f7fa1eeb5ec59044d3607c6070.
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Commit d9722a47571104f7fa1eeb5ec59044d3607c6070 was part of v13 of my
patches.  This got replaced yesterday by a newer version which may or may not
have made it into linux-next.

This is probably a known bug fixed in the v14 by making shmem have its own
splice-read function.

Can you try this?

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=iov-extract

(Also, can you include me in the cc list as I'm the author of the patch you
reverted?)

Thanks,
David





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