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x86_64 move_pages_smp_handler: rework initialisation

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- add missing break statement
- remove duplicate memset for mpsr->status

Change-Id: I1fd1a8b2bb7bbabb32db9e7d3fc84102d9b0ff82
This commit is contained in:
Dominique Martinet
2018-06-12 09:32:17 +09:00
committed by Dominique Martinet
parent ad2cb6375a
commit 97273adcc5
1 changed files with 12 additions and 22 deletions
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34
arch/x86_64/kernel/syscall.c
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@ -2366,8 +2366,6 @@ int move_pages_smp_handler(int cpu_index, int nr_cpus, void *arg)
case 0:
memcpy(mpsr->virt_addr, mpsr->user_virt_addr,
sizeof(void *) * count);
memcpy(mpsr->status, mpsr->user_status,
sizeof(int) * count);
memcpy(mpsr->nodes, mpsr->user_nodes,
sizeof(int) * count);
memset(mpsr->ptep, 0, sizeof(pte_t) * count);
@ -2387,41 +2385,38 @@ int move_pages_smp_handler(int cpu_index, int nr_cpus, void *arg)
case 0:
memcpy(mpsr->virt_addr, mpsr->user_virt_addr,
sizeof(void *) * count);
memcpy(mpsr->status, mpsr->user_status,
sizeof(int) * count);
case 1:
memcpy(mpsr->nodes, mpsr->user_nodes,
sizeof(int) * count);
mpsr->nodes_ready = 1;
break;
case 1:
memset(mpsr->ptep, 0, sizeof(pte_t) * count);
memset(mpsr->status, 0, sizeof(int) * count);
memset(mpsr->nr_pages, 0, sizeof(int) * count);
memset(mpsr->dst_phys, 0,
sizeof(unsigned long) * count);
mpsr->nodes_ready = 1;
break;
default:
break;
}
}
else if (nr_cpus >= 4 && nr_cpus < 8) {
else if (nr_cpus >= 4 && nr_cpus < 7) {
switch (cpu_index) {
case 0:
memcpy(mpsr->virt_addr, mpsr->user_virt_addr,
sizeof(void *) * count);
break;
case 1:
memcpy(mpsr->status, mpsr->user_status,
sizeof(int) * count);
break;
case 2:
memcpy(mpsr->nodes, mpsr->user_nodes,
sizeof(int) * count);
mpsr->nodes_ready = 1;
break;
case 3:
case 2:
memset(mpsr->ptep, 0, sizeof(pte_t) * count);
memset(mpsr->status, 0, sizeof(int) * count);
break;
case 3:
memset(mpsr->nr_pages, 0, sizeof(int) * count);
memset(mpsr->dst_phys, 0,
sizeof(unsigned long) * count);
@ -2431,7 +2426,7 @@ int move_pages_smp_handler(int cpu_index, int nr_cpus, void *arg)
break;
}
}
else if (nr_cpus >= 8) {
else {
switch (cpu_index) {
case 0:
memcpy(mpsr->virt_addr, mpsr->user_virt_addr,
@ -2443,28 +2438,23 @@ int move_pages_smp_handler(int cpu_index, int nr_cpus, void *arg)
sizeof(void *) * (count / 2));
break;
case 2:
memcpy(mpsr->status, mpsr->user_status,
sizeof(int) * count);
break;
case 3:
memcpy(mpsr->nodes, mpsr->user_nodes,
sizeof(int) * count);
mpsr->nodes_ready = 1;
break;
case 4:
case 3:
memset(mpsr->ptep, 0, sizeof(pte_t) * count);
break;
case 5:
case 4:
memset(mpsr->status, 0, sizeof(int) * count);
break;
case 6:
case 5:
memset(mpsr->nr_pages, 0, sizeof(int) * count);
break;
case 7:
case 6:
memset(mpsr->dst_phys, 0,
sizeof(unsigned long) * count);
break;
default:
break;
}