Re: [PATCH v2 03/15] block: Support data lifetime in the I/O priority bitfield

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On 10/16/23 02:20, Niklas Cassel wrote:
So when you say:
"It depends on how we want the user to specify the data lifetime for
direct I/O.", do you mean that buffered I/O should use fcntl() to specify
data lifetime, but direct I/O should used Linux IO priority API to specify
the same?

Because, to me that seems to be how the series is currently working.
(I am sorry if I am missing something.)

Let's drop support for passing the data lifetime in the I/O priority
field from user space as Damien proposed. The remaining question is
whether only to restore support for F_SET_RW_HINT (per inode) or also
for F_SET_FILE_RW_HINT (per file)?

Thanks,

Bart.




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