Vishal Verma 6f6544f27e dax/bus.c: fix locking for unregister_dax_dev / unregister_dax_mapping paths ... Commit c05ae9d85b ("dax/bus.c: replace driver-core lock usage by a local rwsem") aimed to undo device_lock() abuses for protecting changes to dax-driver internal data-structures like the dax_region resource tree to device-dax-instance range structures. However, the device_lock() was legitimately enforcing that devices to be deleted were not current actively attached to any driver nor assigned any capacity from the region. As a result of the device_lock restoration in delete_store(), the conditional locking in unregister_dev_dax() and unregister_dax_mapping() can be removed. Link: https://lkml.kernel.org/r/20240430-vv-dax_abi_fixes-v3-2-e3dcd755774c@intel.com Fixes: c05ae9d85b ("dax/bus.c: replace driver-core lock usage by a local rwsem") Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Reported-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Cc: Alison Schofield <alison.schofield@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-05-07 10:37:00 -07:00
..
hmem	dax/kmem: allow kmem to add memory with memmap_on_memory	2023-12-10 16:51:35 -08:00
pmem	dax: Kill DEV_DAX_PMEM_COMPAT	2021-11-24 19:21:35 -08:00
bus.c	dax/bus.c: fix locking for unregister_dax_dev / unregister_dax_mapping paths	2024-05-07 10:37:00 -07:00
bus.h	dax/kmem: allow kmem to add memory with memmap_on_memory	2023-12-10 16:51:35 -08:00
cxl.c	dax/kmem: allow kmem to add memory with memmap_on_memory	2023-12-10 16:51:35 -08:00
dax-private.h	dax/kmem: allow kmem to add memory with memmap_on_memory	2023-12-10 16:51:35 -08:00
device.c	mm: switch mm->get_unmapped_area() to a flag	2024-04-25 20:56:25 -07:00
Kconfig	cxl for v6.3	2023-02-25 09:19:23 -08:00
kmem.c	memory tier: dax/kmem: introduce an abstract layer for finding, allocating, and putting memory types	2024-05-05 17:53:25 -07:00
Makefile	cxl/dax: Create dax devices for CXL RAM regions	2023-02-10 17:33:45 -08:00
pmem.c	dax/kmem: allow kmem to add memory with memmap_on_memory	2023-12-10 16:51:35 -08:00
super.c	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00