[PATCH v3 0/4] cxl/mem: Fix memdev device setup

From: Dan Williams
Date: Tue Mar 30 2021 - 19:37:09 EST


Changes since v2: [1]
- switch from non-idiomatic srcu synchronization of the device
registration state to rwsem protection of the cxlmd->cxlm pointer.
(Jason)

[1]: http://lore.kernel.org/r/161707245893.2072157.6743322596719518693.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

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A collection of fixes initially inspired by Jason's recognition of
dev_set_name() error handling mistakes on other driver review, but also
from a deeper discussion of idiomatic device operation shutdown flows.
The end result is easier to reason about and validate. Thank you, Jason.

The sysfs_emit() fixup and unpublishing of device power management files
are independent sanity cleanups.

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Dan Williams (4):
cxl/mem: Use sysfs_emit() for attribute show routines
cxl/mem: Fix synchronization mechanism for device removal vs ioctl operations
cxl/mem: Do not rely on device_add() side effects for dev_set_name() failures
cxl/mem: Disable cxl device power management


drivers/cxl/mem.c | 141 +++++++++++++++++++++++++++++++----------------------
1 file changed, 83 insertions(+), 58 deletions(-)

base-commit: a38fd8748464831584a19438cbb3082b5a2dab15