Dan Williams 33cc2c9667 acpi, nfit: Fix scrub idle detection ... The notification of scrub completion happens within the scrub workqueue. That can clearly race someone running scrub_show() and work_busy() before the workqueue has a chance to flush the recently completed work. Add a flag to reliably indicate the idle vs busy state. Without this change applications using poll(2) to wait for scrub-completion may falsely wakeup and read ARS as being busy even though the thread is going idle and then hang indefinitely. Fixes: bc6ba80858 ("nfit, address-range-scrub: rework and simplify ARS...") Cc: <stable@vger.kernel.org> Reported-by: Vishal Verma <vishal.l.verma@intel.com> Tested-by: Vishal Verma <vishal.l.verma@intel.com> Reported-by: Lukasz Dorau <lukasz.dorau@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2018-07-05 19:33:53 -07:00
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core.c	acpi, nfit: Fix scrub idle detection	2018-07-05 19:33:53 -07:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	nfit: do an ARS scrub on hitting a latent media error	2016-07-24 08:04:04 -07:00
mce.c	acpi, nfit: remove redundant __func__ in dev_dbg	2018-03-05 15:58:36 -08:00
nfit.h	acpi, nfit: Fix scrub idle detection	2018-07-05 19:33:53 -07:00