WSL2-Linux-Kernel/arch/ia64
David Hildenbrand d9a9d8effd memblock: allow to specify flags with memblock_add_node()
[ Upstream commit 952eea9b01 ]

We want to specify flags when hotplugging memory.  Let's prepare to pass
flags to memblock_add_node() by adjusting all existing users.

Note that when hotplugging memory the system is already up and running
and we might have concurrent memblock users: for example, while we're
hotplugging memory, kexec_file code might search for suitable memory
regions to place kexec images.  It's important to add the memory
directly to memblock via a single call with the right flags, instead of
adding the memory first and apply flags later: otherwise, concurrent
memblock users might temporarily stumble over memblocks with wrong
flags, which will be important in a follow-up patch that introduces a
new flag to properly handle add_memory_driver_managed().

Link: https://lkml.kernel.org/r/20211004093605.5830-4-david@redhat.com
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Shahab Vahedi <shahab@synopsys.com>	[arch/arc]
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Jianyong Wu <Jianyong.Wu@arm.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stable-dep-of: c7206e7bd214 ("MIPS: Loongson64: Handle more memory types passed from firmware")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 15:17:33 +01:00
..
configs
hp/common
include ia64/cpu: Switch to arch_cpu_finalize_init() 2023-08-08 19:58:30 +02:00
kernel ia64/cpu: Switch to arch_cpu_finalize_init() 2023-08-08 19:58:30 +02:00
lib
mm memblock: allow to specify flags with memblock_add_node() 2023-12-20 15:17:33 +01:00
pci PCI/sysfs: Find shadow ROM before static attribute initialization 2022-02-01 17:27:05 +01:00
scripts
uv
Kbuild
Kconfig ia64/cpu: Switch to arch_cpu_finalize_init() 2023-08-08 19:58:30 +02:00
Kconfig.debug ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK 2021-11-18 19:16:13 +01:00
Makefile
install.sh