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SubjectRe: [PATCH 2/2] device-dax: kill NR_DEV_DAX
On Mon, May 8, 2017 at 11:03 PM, Dan Williams <> wrote:
> There is no point to ask how many device-dax instances the kernel should
> support. Since we are already using a dynamic major number, just allow
> the max number of minors by default and be done. This also fixes the
> fact that the proposed max for the NR_DEV_DAX range was larger than what
> could be supported by alloc_chrdev_region().
> Fixes: ba09c01d2fa8 ("dax: convert to the cdev api")
> Reported-by: Geert Uytterhoeven <>
> Signed-off-by: Dan Williams <>

Tested-by: Geert Uytterhoeven <>



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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