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authorNicholas Piggin <npiggin@gmail.com>2023-05-24 16:08:19 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2023-08-02 22:22:18 +1000
commitf74b2a6c01a0b319070ccee7dea0cc4dad694041 (patch)
tree15ee35bed11fd3913065932386d54ff15ad19fcf /arch/powerpc/mm
parentc3c2e93753484bb4e935ed8205c1f569907f5970 (diff)
powerpc/64s: Use dec_mm_active_cpus helper
Avoid open-coded atomic_dec on mm->context.active_cpus and use the function made for it. Add CONFIG_DEBUG_VM underflow checking on the counter. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230524060821.148015-3-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/book3s64/radix_tlb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c
index 0bd4866d9824..4e72d8007f88 100644
--- a/arch/powerpc/mm/book3s64/radix_tlb.c
+++ b/arch/powerpc/mm/book3s64/radix_tlb.c
@@ -820,7 +820,7 @@ void exit_lazy_flush_tlb(struct mm_struct *mm, bool always_flush)
* that's what the caller expects.
*/
if (cpumask_test_cpu(cpu, mm_cpumask(mm))) {
- atomic_dec(&mm->context.active_cpus);
+ dec_mm_active_cpus(mm);
cpumask_clear_cpu(cpu, mm_cpumask(mm));
always_flush = true;
}