[PATCH 14/14] block: add special APIs for run-time disabling of discard and friends

[Nitesh Shetty]

On 31/05/24 09:48AM, Christoph Hellwig wrote:
>A few drivers optimistically try to support discard, write zeroes and
>secure erase and disable the features from the I/O completion handler
>if the hardware can't support them.  This disable can't be done using
>the atomic queue limits API because the I/O completion handlers can't
>take sleeping locks or freeze the queue.  Keep the existing clearing
>of the relevant field to zero, but replace the old blk_queue_max_*
>APIs with new disable APIs that force the value to 0.
>
>Signed-off-by: Christoph Hellwig <hch at lst.de>
>Reviewed-by: Bart Van Assche <bvanassche at acm.org>
>Reviewed-by: Damien Le Moal <dlemoal at kernel.org>
>---
Reviewed-by: Nitesh Shetty <nj.shetty at samsung.com>