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VM: use RW spinlock for vm_range_lock

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Change-Id: Id4654084207d55bf77cc9f8b42795e0f9873cfa0
This commit is contained in:
Balazs Gerofi
2020-04-30 13:32:32 +09:00
committed by Masamichi Takagi
parent 54b529c82d
commit d5aafca1ae
7 changed files with 94 additions and 94 deletions
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14
kernel/procfs.c
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@ -459,7 +459,7 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
if (strcmp(p, "maps") == 0) {
struct vm_range *range;
if (!ihk_mc_spinlock_trylock_noirq(&vm->memory_range_lock)) {
if (!ihk_rwspinlock_read_trylock_noirq(&vm->memory_range_lock)) {
if (!result) {
if ((err = procfs_backlog(vm, rpacket))) {
goto err;
@ -505,14 +505,14 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
if (ans < 0 || ans > count ||
buf_add(&buf_top, &buf_cur, buf, ans) < 0) {
ihk_mc_spinlock_unlock_noirq(
ihk_rwspinlock_read_unlock_noirq(
&vm->memory_range_lock);
goto err;
}
range = next_process_memory_range(vm, range);
}
ihk_mc_spinlock_unlock_noirq(&vm->memory_range_lock);
ihk_rwspinlock_read_unlock_noirq(&vm->memory_range_lock);
ans = 0;
goto end;
@ -535,7 +535,7 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
start = (offset / sizeof(uint64_t)) << PAGE_SHIFT;
end = start + ((count / sizeof(uint64_t)) << PAGE_SHIFT);
if (!ihk_mc_spinlock_trylock_noirq(&vm->memory_range_lock)) {
if (!ihk_rwspinlock_read_trylock_noirq(&vm->memory_range_lock)) {
if (!result) {
if ((err = procfs_backlog(vm, rpacket))) {
goto err;
@ -555,7 +555,7 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
++_buf;
}
ihk_mc_spinlock_unlock_noirq(&vm->memory_range_lock);
ihk_rwspinlock_read_unlock_noirq(&vm->memory_range_lock);
dprintf("/proc/pagemap: 0x%lx - 0x%lx, count: %d\n",
start, end, count);
@ -587,7 +587,7 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
goto err;
}
if (!ihk_mc_spinlock_trylock_noirq(&vm->memory_range_lock)) {
if (!ihk_rwspinlock_read_trylock_noirq(&vm->memory_range_lock)) {
if (!result) {
if ((err = procfs_backlog(vm, rpacket))) {
goto err;
@ -604,7 +604,7 @@ static int _process_procfs_request(struct ikc_scd_packet *rpacket, int *result)
lockedsize += range->end - range->start;
range = next_process_memory_range(vm, range);
}
ihk_mc_spinlock_unlock_noirq(&vm->memory_range_lock);
ihk_rwspinlock_read_unlock_noirq(&vm->memory_range_lock);
cpu_bitmask = &bitmasks[bitmasks_offset];
bitmasks_offset += bitmap_scnprintf(cpu_bitmask,