@@ -1034,16 +1034,14 @@ void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr, MemTxAttrs attrs)
return;
}
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
mr = address_space_translate(as, addr, &addr, &l, false, attrs);
if (!(memory_region_is_ram(mr)
|| memory_region_is_romd(mr))) {
- rcu_read_unlock();
return;
}
ram_addr = memory_region_get_ram_addr(mr) + addr;
tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0);
- rcu_read_unlock();
}
static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
@@ -1329,14 +1327,13 @@ static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t length)
end = TARGET_PAGE_ALIGN(start + length);
start &= TARGET_PAGE_MASK;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
block = qemu_get_ram_block(start);
assert(block == qemu_get_ram_block(end - 1));
start1 = (uintptr_t)ramblock_ptr(block, start - block->offset);
CPU_FOREACH(cpu) {
tlb_reset_dirty(cpu, start1, length);
}
- rcu_read_unlock();
}
/* Note: start and end must be within the same ram block. */
@@ -1661,7 +1658,7 @@ void ram_block_dump(Monitor *mon)
RAMBlock *block;
char *psize;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
monitor_printf(mon, "%24s %8s %18s %18s %18s\n",
"Block Name", "PSize", "Offset", "Used", "Total");
RAMBLOCK_FOREACH(block) {
@@ -1673,7 +1670,6 @@ void ram_block_dump(Monitor *mon)
(uint64_t)block->max_length);
g_free(psize);
}
- rcu_read_unlock();
}
#ifdef __linux__
@@ -1995,11 +1991,10 @@ static unsigned long last_ram_page(void)
RAMBlock *block;
ram_addr_t last = 0;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
RAMBLOCK_FOREACH(block) {
last = MAX(last, block->offset + block->max_length);
}
- rcu_read_unlock();
return last >> TARGET_PAGE_BITS;
}
@@ -2086,7 +2081,7 @@ void qemu_ram_set_idstr(RAMBlock *new_block, const char *name, DeviceState *dev)
}
pstrcat(new_block->idstr, sizeof(new_block->idstr), name);
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
RAMBLOCK_FOREACH(block) {
if (block != new_block &&
!strcmp(block->idstr, new_block->idstr)) {
@@ -2095,7 +2090,6 @@ void qemu_ram_set_idstr(RAMBlock *new_block, const char *name, DeviceState *dev)
abort();
}
}
- rcu_read_unlock();
}
/* Called with iothread lock held. */
@@ -2637,17 +2631,16 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
if (xen_enabled()) {
ram_addr_t ram_addr;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
ram_addr = xen_ram_addr_from_mapcache(ptr);
block = qemu_get_ram_block(ram_addr);
if (block) {
*offset = ram_addr - block->offset;
}
- rcu_read_unlock();
return block;
}
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
block = atomic_rcu_read(&ram_list.mru_block);
if (block && block->host && host - block->host < block->max_length) {
goto found;
@@ -2663,7 +2656,6 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
}
}
- rcu_read_unlock();
return NULL;
found:
@@ -2671,7 +2663,6 @@ found:
if (round_offset) {
*offset &= TARGET_PAGE_MASK;
}
- rcu_read_unlock();
return block;
}
@@ -3380,10 +3371,9 @@ MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr,
FlatView *fv;
if (len > 0) {
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
fv = address_space_to_flatview(as);
result = flatview_read(fv, addr, attrs, buf, len);
- rcu_read_unlock();
}
return result;
@@ -3397,10 +3387,9 @@ MemTxResult address_space_write(AddressSpace *as, hwaddr addr,
FlatView *fv;
if (len > 0) {
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
fv = address_space_to_flatview(as);
result = flatview_write(fv, addr, attrs, buf, len);
- rcu_read_unlock();
}
return result;
@@ -3440,7 +3429,7 @@ static inline MemTxResult address_space_write_rom_internal(AddressSpace *as,
hwaddr addr1;
MemoryRegion *mr;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
while (len > 0) {
l = len;
mr = address_space_translate(as, addr, &addr1, &l, true, attrs);
@@ -3465,7 +3454,6 @@ static inline MemTxResult address_space_write_rom_internal(AddressSpace *as,
buf += l;
addr += l;
}
- rcu_read_unlock();
return MEMTX_OK;
}
@@ -3610,10 +3598,9 @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr,
FlatView *fv;
bool result;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
fv = address_space_to_flatview(as);
result = flatview_access_valid(fv, addr, len, is_write, attrs);
- rcu_read_unlock();
return result;
}
@@ -3668,13 +3655,12 @@ void *address_space_map(AddressSpace *as,
}
l = len;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
fv = address_space_to_flatview(as);
mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs);
if (!memory_access_is_direct(mr, is_write)) {
if (atomic_xchg(&bounce.in_use, true)) {
- rcu_read_unlock();
return NULL;
}
/* Avoid unbounded allocations */
@@ -3690,7 +3676,6 @@ void *address_space_map(AddressSpace *as,
bounce.buffer, l);
}
- rcu_read_unlock();
*plen = l;
return bounce.buffer;
}
@@ -3700,7 +3685,6 @@ void *address_space_map(AddressSpace *as,
*plen = flatview_extend_translation(fv, addr, len, mr, xlat,
l, is_write, attrs);
ptr = qemu_ram_ptr_length(mr->ram_block, xlat, plen, true);
- rcu_read_unlock();
return ptr;
}
@@ -3968,13 +3952,12 @@ bool cpu_physical_memory_is_io(hwaddr phys_addr)
hwaddr l = 1;
bool res;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
mr = address_space_translate(&address_space_memory,
phys_addr, &phys_addr, &l, false,
MEMTXATTRS_UNSPECIFIED);
res = !(memory_region_is_ram(mr) || memory_region_is_romd(mr));
- rcu_read_unlock();
return res;
}
@@ -3983,14 +3966,13 @@ int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)
RAMBlock *block;
int ret = 0;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
RAMBLOCK_FOREACH(block) {
ret = func(block, opaque);
if (ret) {
break;
}
}
- rcu_read_unlock();
return ret;
}
@@ -240,7 +240,7 @@ static inline bool cpu_physical_memory_all_dirty(ram_addr_t start,
end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS;
page = start >> TARGET_PAGE_BITS;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
blocks = atomic_rcu_read(&ram_list.dirty_memory[client]);
@@ -262,8 +262,6 @@ static inline bool cpu_physical_memory_all_dirty(ram_addr_t start,
base += DIRTY_MEMORY_BLOCK_SIZE;
}
- rcu_read_unlock();
-
return dirty;
}
@@ -315,13 +313,11 @@ static inline void cpu_physical_memory_set_dirty_flag(ram_addr_t addr,
idx = page / DIRTY_MEMORY_BLOCK_SIZE;
offset = page % DIRTY_MEMORY_BLOCK_SIZE;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
blocks = atomic_rcu_read(&ram_list.dirty_memory[client]);
set_bit_atomic(offset, blocks->blocks[idx]);
-
- rcu_read_unlock();
}
static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
@@ -799,14 +799,13 @@ FlatView *address_space_get_flatview(AddressSpace *as)
{
FlatView *view;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
do {
view = address_space_to_flatview(as);
/* If somebody has replaced as->current_map concurrently,
* flatview_ref returns false.
*/
} while (!flatview_ref(view));
- rcu_read_unlock();
return view;
}
@@ -2177,12 +2176,11 @@ int memory_region_get_fd(MemoryRegion *mr)
{
int fd;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
while (mr->alias) {
mr = mr->alias;
}
fd = mr->ram_block->fd;
- rcu_read_unlock();
return fd;
}
@@ -2192,14 +2190,13 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
void *ptr;
uint64_t offset = 0;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
while (mr->alias) {
offset += mr->alias_offset;
mr = mr->alias;
}
assert(mr->ram_block);
ptr = qemu_map_ram_ptr(mr->ram_block, offset);
- rcu_read_unlock();
return ptr;
}
@@ -2589,12 +2586,11 @@ MemoryRegionSection memory_region_find(MemoryRegion *mr,
hwaddr addr, uint64_t size)
{
MemoryRegionSection ret;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
ret = memory_region_find_rcu(mr, addr, size);
if (ret.mr) {
memory_region_ref(ret.mr);
}
- rcu_read_unlock();
return ret;
}
@@ -2602,9 +2598,8 @@ bool memory_region_present(MemoryRegion *container, hwaddr addr)
{
MemoryRegion *mr;
- rcu_read_lock();
+ RCU_READ_LOCK_AUTO;
mr = memory_region_find_rcu(container, addr, 1).mr;
- rcu_read_unlock();
return mr && mr != container;
}