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Filename Latest commit message Latest commit date
Jane Chu a6d5c5a398 libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr 
[ Upstream commit 7f674025d9f7321dea11b802cc0ab3f09cbe51c5 ]

commit 7d988097c5 ("acpi/nfit, libnvdimm/security: Add security DSM overwrite support")
adds a sysfs_notify_dirent() to wake up userspace poll thread when the "overwrite"
operation has completed. But the notification is issued before the internal
dimm security state and flags have been updated, so the userspace poll thread
wakes up and fetches the not-yet-updated attr and falls back to sleep, forever.
But if user from another terminal issue "ndctl wait-overwrite nmemX" again,
the command returns instantly.

Link: https://lore.kernel.org/r/1596494499-9852-3-git-send-email-jane.chu@oracle.com
Fixes: 7d988097c5 ("acpi/nfit, libnvdimm/security: Add security DSM overwrite support")
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21 13:05:35 +02:00
arch pseries: Fix 64 bit logical memory block panic 2020-08-21 13:05:28 +02:00
block
certs
crypto crypto: af_alg - Fix regression on empty requests 2020-08-21 13:05:31 +02:00
Documentation
drivers libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr 2020-08-21 13:05:35 +02:00
fs ubifs: Fix wrong orphan node deletion in ubifs_jnl_update|rename 2020-08-21 13:05:35 +02:00
include iommu/vt-d: Enforce PASID devTLB field mask 2020-08-21 13:05:34 +02:00
init
ipc
kernel module: Correctly truncate sysfs sections output 2020-08-21 13:05:28 +02:00
lib devres: keep both device name and resource name in pretty name 2020-08-21 13:05:32 +02:00
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tools tools build feature: Use CC and CXX from parent 2020-08-21 13:05:34 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.