Commit 8e1704b6 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

Merge branches 'doc.2023.01.05a', 'fixes.2023.01.23a', 'kvfree.2023.01.03a',... 

Merge branches 'doc.2023.01.05a', 'fixes.2023.01.23a', 'kvfree.2023.01.03a', 'srcu.2023.01.03a', 'srcu-always.2023.02.02a', 'tasks.2023.01.03a', 'torture.2023.01.05a' and 'torturescript.2023.01.03a' into HEAD

doc.2023.01.05a: Documentation update.
fixes.2023.01.23a: Miscellaneous fixes.
kvfree.2023.01.03a: kvfree_rcu() updates.
srcu.2023.01.03a: SRCU updates.
srcu-always.2023.02.02a: Finish making SRCU be unconditionally available.
tasks.2023.01.03a: Tasks-RCU updates.
torture.2023.01.05a: Torture-test updates.
torturescript.2023.01.03a: Torture-test scripting updates.
parents 5e013dc1 cf7066b9 608723c4 dafc4d16 56344693 a4fcfbee d52d3a2b 5a6cd56a

Documentation/admin-guide/kernel-parameters.txt

+5 −0
Original line number Diff line number Diff line
@@ -5113,6 +5113,11 @@ 
			rcupdate.rcu_cpu_stall_timeout to be used (after

			conversion from seconds to milliseconds).



	rcupdate.rcu_exp_stall_task_details= [KNL]

			Print stack dumps of any tasks blocking the

			current expedited RCU grace period during an

			expedited RCU CPU stall warning.



	rcupdate.rcu_expedited= [KNL]

			Use expedited grace-period primitives, for

			example, synchronize_rcu_expedited() instead

drivers/base/core.c

+0 −42
Original line number Diff line number Diff line
@@ -181,7 +181,6 @@ void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode) 
}

EXPORT_SYMBOL_GPL(fw_devlink_purge_absent_suppliers);



#ifdef CONFIG_SRCU

static DEFINE_MUTEX(device_links_lock);

DEFINE_STATIC_SRCU(device_links_srcu);
@@ -220,47 +219,6 @@ static void device_link_remove_from_lists(struct device_link *link) 
	list_del_rcu(&link->s_node);

	list_del_rcu(&link->c_node);

}

#else /* !CONFIG_SRCU */

static DECLARE_RWSEM(device_links_lock);



static inline void device_links_write_lock(void)

{

	down_write(&device_links_lock);

}



static inline void device_links_write_unlock(void)

{

	up_write(&device_links_lock);

}



int device_links_read_lock(void)

{

	down_read(&device_links_lock);

	return 0;

}



void device_links_read_unlock(int not_used)

{

	up_read(&device_links_lock);

}



#ifdef CONFIG_DEBUG_LOCK_ALLOC

int device_links_read_lock_held(void)

{

	return lockdep_is_held(&device_links_lock);

}

#endif



static inline void device_link_synchronize_removal(void)

{

}



static void device_link_remove_from_lists(struct device_link *link)

{

	list_del(&link->s_node);

	list_del(&link->c_node);

}

#endif /* !CONFIG_SRCU */



static bool device_is_ancestor(struct device *dev, struct device *target)

{

drivers/dax/Kconfig

+0 −1
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only

menuconfig DAX

	tristate "DAX: direct access to differentiated memory"

	select SRCU

	default m if NVDIMM_DAX



if DAX

drivers/hwtracing/stm/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -2,7 +2,6 @@ 
config STM

	tristate "System Trace Module devices"

	select CONFIGFS_FS

	select SRCU

	help

	  A System Trace Module (STM) is a device exporting data in System

	  Trace Protocol (STP) format as defined by MIPI STP standards.

drivers/md/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -6,7 +6,6 @@ 
menuconfig MD

	bool "Multiple devices driver support (RAID and LVM)"

	depends on BLOCK

	select SRCU

	help

	  Support multiple physical spindles through a single logical device.

	  Required for RAID and logical volume management.