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author | David Hildenbrand <david@redhat.com> | 2022-03-22 14:47:13 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-22 15:57:10 -0700 |
commit | 2848a28b0a6052a4c8450397d2647d7d8e3f6f06 (patch) | |
tree | 5c2d3a914b9feb09bbc10ff7fe5a178321c9349d /arch/arm64 | |
parent | 7ea0d2d79da09d1f7d71c96a9c9bc1b5229360b5 (diff) | |
download | linux-stable-2848a28b0a6052a4c8450397d2647d7d8e3f6f06.tar.gz linux-stable-2848a28b0a6052a4c8450397d2647d7d8e3f6f06.tar.bz2 linux-stable-2848a28b0a6052a4c8450397d2647d7d8e3f6f06.zip |
drivers/base/node: consolidate node device subsystem initialization in node_dev_init()
... and call node_dev_init() after memory_dev_init() from driver_init(),
so before any of the existing arch/subsys calls. All online nodes should
be known at that point: early during boot, arch code determines node and
zone ranges and sets the relevant nodes online; usually this happens in
setup_arch().
This is in line with memory_dev_init(), which initializes the memory
device subsystem and creates all memory block devices.
Similar to memory_dev_init(), panic() if anything goes wrong, we don't
want to continue with such basic initialization errors.
The important part is that node_dev_init() gets called after
memory_dev_init() and after cpu_dev_init(), but before any of the relevant
archs call register_cpu() to register the new cpu device under the node
device. The latter should be the case for the current users of
topology_init().
Link: https://lkml.kernel.org/r/20220203105212.30385-1-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Anatoly Pugachev <matorola@gmail.com> (sparc64)
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64')
-rw-r--r-- | arch/arm64/kernel/setup.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index f70573928f1b..3505789cf4bd 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -406,9 +406,6 @@ static int __init topology_init(void) { int i; - for_each_online_node(i) - register_one_node(i); - for_each_possible_cpu(i) { struct cpu *cpu = &per_cpu(cpu_data.cpu, i); cpu->hotpluggable = cpu_can_disable(i); |