mbox series

[v2,0/4] cxl/mem: Fix memdev device setup

Message ID 161707245893.2072157.6743322596719518693.stgit@dwillia2-desk3.amr.corp.intel.com
Headers show
Series cxl/mem: Fix memdev device setup | expand

Message

Dan Williams March 30, 2021, 2:47 a.m. UTC 
Changes since v1: [1]
- switch percpu_ref to srcu (Jason)
- introduce cxl_memdev_alloc() (Jason)

[1]: http://lore.kernel.org/r/161661970558.1721612.10441826898835759137.stgit@dwillia2-desk3.amr.corp.intel.com

---

A small collection of fixes mostly inspired by Jason's recognition of
dev_set_name() error handling mistakes on other driver review.

dev_set_name() can fail and although device_add() might catch it that's
not a reliable assumption. While fixing that I noticed that the unwind
handling for cdev_device_add() failures leaked the device name.

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

---

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 |  127 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 75 insertions(+), 52 deletions(-)

base-commit: a38fd8748464831584a19438cbb3082b5a2dab15