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-rw-r--r--arch/arm64/kernel/insn.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index e007714ded04..8cd27fedc8b6 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -163,9 +163,10 @@ static int __kprobes aarch64_insn_patch_text_cb(void *arg)
163 * which ends with "dsb; isb" pair guaranteeing global 163 * which ends with "dsb; isb" pair guaranteeing global
164 * visibility. 164 * visibility.
165 */ 165 */
166 atomic_set(&pp->cpu_count, -1); 166 /* Notify other processors with an additional increment. */
167 atomic_inc(&pp->cpu_count);
167 } else { 168 } else {
168 while (atomic_read(&pp->cpu_count) != -1) 169 while (atomic_read(&pp->cpu_count) <= num_online_cpus())
169 cpu_relax(); 170 cpu_relax();
170 isb(); 171 isb();
171 } 172 }