Thomas Gleixner f2545b2d4c jump_label: Reorder hotplug lock and jump_label_lock ... The conversion of the hotplug locking to a percpu rwsem unearthed lock ordering issues all over the place. The jump_label code has two issues: 1) Nested get_online_cpus() invocations 2) Ordering problems vs. the cpus rwsem and the jump_label_mutex To cure these, the following lock order has been established; cpus_rwsem -> jump_label_lock -> text_mutex Even if not all architectures need protection against CPU hotplug, taking cpus_rwsem before jump_label_lock is now mandatory in code pathes which actually modify code and therefor need text_mutex protection. Move the get_online_cpus() invocations into the core jump label code and establish the proper lock order where required. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: "David S. Miller" <davem@davemloft.net> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@akamai.com> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/20170524081549.025830817@linutronix.de		2017-05-26 10:10:45 +02:00
..
vdso
asm-offsets.c
backtrace.c
compat.c
compat_signal.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
early_printk.c
entry.S
ftrace.c
hardwall.c
head_32.S
head_64.S
hvglue.S
hvglue_trace.c
intvec_32.S
intvec_64.S
irq.c
jump_label.c	jump_label: Reorder hotplug lock and jump_label_lock	2017-05-26 10:10:45 +02:00
kgdb.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
kprobes.c
machine_kexec.c
Makefile
mcount_64.S
messaging.c
module.c	tile-module: Rename jump labels in module_alloc()	2016-12-16 15:32:29 -05:00
pci-dma.c	treewide: Constify most dma_map_ops structures	2017-01-24 12:23:35 -05:00
pci.c	tile: use __ro_after_init instead of tile-specific __write_once	2016-12-16 15:32:29 -05:00
pci_gx.c
perf_event.c
pmc.c
proc.c
process.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
ptrace.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
reboot.c
regs_32.S
regs_64.S
relocate_kernel_32.S
relocate_kernel_64.S
setup.c	tile: use __ro_after_init instead of tile-specific __write_once	2016-12-16 15:32:29 -05:00
signal.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
single_step.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
smp.c	tile: use __ro_after_init instead of tile-specific __write_once	2016-12-16 15:32:29 -05:00
smpboot.c	sched/headers: Move task->mm handling methods to <linux/sched/mm.h>	2017-03-03 01:43:28 +01:00
stack.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
sys.c
sysfs.c
tile-desc_32.c
tile-desc_64.c
time.c	tile/time: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:21 -07:00
tlb.c
traps.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
unaligned.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
usb.c
vdso.c
vmlinux.lds.S