Re: [PATCH 3/4] ide: don't disable interrupts during kmap_atomic()

[David Miller]

From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Date: Fri,  4 May 2018 16:24:45 +0200

> ide_pio_bytes() disables interrupts around kmap_atomic(). This is a
> leftover from the old kmap_atomic() implementation which relied on fixed
> mapping slots, so the caller had to make sure that the same slot could not
> be reused from an interrupting context.
> 
> kmap_atomic() was changed to dynamic slots long ago and commit 1ec9c5ddc17a
> ("include/linux/highmem.h: remove the second argument of k[un]map_atomic()")
> removed the slot assignements, but the callers were not checked for now
> redundant interrupt disabling.
> 
> Remove the conditional interrupt disable.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>