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| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-09-23 15:36:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-24 15:54:10 -0700 |
| commit | 2286bf4e4d8f2fda407222b54f685dff3b80e0a0 (patch) | |
| tree | 1b98c91cde4aa7821666065c4e08eae6e2fbb85e | |
| parent | 7ea362427c170061b8822dd41bafaa72b3bcb9ad (diff) | |
| download | linux-2286bf4e4d8f2fda407222b54f685dff3b80e0a0.tar.gz linux-2286bf4e4d8f2fda407222b54f685dff3b80e0a0.tar.bz2 linux-2286bf4e4d8f2fda407222b54f685dff3b80e0a0.zip | |
mm: use CPU_BITS_NONE to initialize init_mm.cpu_bitmask
Replace open-coded bitmap array initialization of init_mm.cpu_bitmask with
neat CPU_BITS_NONE macro.
And, since init_mm.cpu_bitmask is statically set to zero, there is no way
to clear it again in start_kernel().
Link: http://lkml.kernel.org/r/1565703815-8584-1-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | init/main.c | 1 | ||||
| -rw-r--r-- | mm/init-mm.c | 2 |
2 files changed, 1 insertions, 2 deletions
diff --git a/init/main.c b/init/main.c index 99a5f55e0d02..208b8fa1808e 100644 --- a/init/main.c +++ b/init/main.c @@ -594,7 +594,6 @@ asmlinkage __visible void __init start_kernel(void) page_address_init(); pr_notice("%s", linux_banner); setup_arch(&command_line); - mm_init_cpumask(&init_mm); setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); diff --git a/mm/init-mm.c b/mm/init-mm.c index a787a319211e..fb1e15028ef0 100644 --- a/mm/init-mm.c +++ b/mm/init-mm.c @@ -35,6 +35,6 @@ struct mm_struct init_mm = { .arg_lock = __SPIN_LOCK_UNLOCKED(init_mm.arg_lock), .mmlist = LIST_HEAD_INIT(init_mm.mmlist), .user_ns = &init_user_ns, - .cpu_bitmap = { [BITS_TO_LONGS(NR_CPUS)] = 0}, + .cpu_bitmap = CPU_BITS_NONE, INIT_MM_CONTEXT(init_mm) }; |