[PATCH] mtd: revert "spi-nor: intel: provide a range for poll_timout"

Tudor Ambarus tudor.ambarus at microchip.com
Tue Jul 28 05:55:58 EDT 2020


On Wed, 10 Jun 2020 22:46:49 +0000, Luis Alberto Herrera wrote:
> This change reverts aba3a882a178: "mtd: spi-nor: intel: provide a range
> for poll_timout". That change introduces a performance regression when
> reading sequentially from flash. Logging calls to intel_spi_read without
> this change we get:
> 
> Start MTD read
> [   20.045527] intel_spi_read(from=1800000, len=400000)
> [   20.045527] intel_spi_read(from=1800000, len=400000)
> [  282.199274] intel_spi_read(from=1c00000, len=400000)
> [  282.199274] intel_spi_read(from=1c00000, len=400000)
> [  544.351528] intel_spi_read(from=2000000, len=400000)
> [  544.351528] intel_spi_read(from=2000000, len=400000)
> End MTD read
> 
> [...]

Applied to spi-nor/next, thanks!

[1/1] mtd: revert "spi-nor: intel: provide a range for poll_timout"
      https://git.kernel.org/mtd/c/e93a977367b2

Best regards,
-- 
Tudor Ambarus <tudor.ambarus at microchip.com>



More information about the linux-mtd mailing list