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comparison src/os/linux/vm/os_linux.hpp @ 462:85f1b9537f70

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6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus() Summary: In os::Linux::rebuild_cpu_to_node_map() fix the size of the CPU bitmap. Fixed arithmetic in MutableNUMASpace::adaptive_chunk_size() that could cause overflows and underflows of the chunk_size variable. Reviewed-by: apetrusenko
author iveresov
date Wed, 03 Dec 2008 14:18:57 -0800
parents 9c2ecc2ffb12
children cf71f149d7ae
comparison
equal deleted inserted replaced
457:27a80744a83b 462:85f1b9537f70
144 // NPTL is always floating stack. LinuxThreads could be using floating 144 // NPTL is always floating stack. LinuxThreads could be using floating
145 // stack or fixed stack. 145 // stack or fixed stack.
146 static bool is_floating_stack() { return _is_floating_stack; } 146 static bool is_floating_stack() { return _is_floating_stack; }
147 147
148 static void libpthread_init(); 148 static void libpthread_init();
149 static void libnuma_init(); 149 static bool libnuma_init();
150 150
151 // Minimum stack size a thread can be created with (allowing 151 // Minimum stack size a thread can be created with (allowing
152 // the VM to completely create the thread and enter user code) 152 // the VM to completely create the thread and enter user code)
153 static size_t min_stack_allowed; 153 static size_t min_stack_allowed;
154 154
238 typedef int (*sched_getcpu_func_t)(void); 238 typedef int (*sched_getcpu_func_t)(void);
239 typedef int (*numa_node_to_cpus_func_t)(int node, unsigned long *buffer, int bufferlen); 239 typedef int (*numa_node_to_cpus_func_t)(int node, unsigned long *buffer, int bufferlen);
240 typedef int (*numa_max_node_func_t)(void); 240 typedef int (*numa_max_node_func_t)(void);
241 typedef int (*numa_available_func_t)(void); 241 typedef int (*numa_available_func_t)(void);
242 typedef int (*numa_tonode_memory_func_t)(void *start, size_t size, int node); 242 typedef int (*numa_tonode_memory_func_t)(void *start, size_t size, int node);
243 243 typedef void (*numa_interleave_memory_func_t)(void *start, size_t size, unsigned long *nodemask);
244 244
245 static sched_getcpu_func_t _sched_getcpu; 245 static sched_getcpu_func_t _sched_getcpu;
246 static numa_node_to_cpus_func_t _numa_node_to_cpus; 246 static numa_node_to_cpus_func_t _numa_node_to_cpus;
247 static numa_max_node_func_t _numa_max_node; 247 static numa_max_node_func_t _numa_max_node;
248 static numa_available_func_t _numa_available; 248 static numa_available_func_t _numa_available;
249 static numa_tonode_memory_func_t _numa_tonode_memory; 249 static numa_tonode_memory_func_t _numa_tonode_memory;
250 static numa_interleave_memory_func_t _numa_interleave_memory;
251 static unsigned long* _numa_all_nodes;
250 252
251 static void set_sched_getcpu(sched_getcpu_func_t func) { _sched_getcpu = func; } 253 static void set_sched_getcpu(sched_getcpu_func_t func) { _sched_getcpu = func; }
252 static void set_numa_node_to_cpus(numa_node_to_cpus_func_t func) { _numa_node_to_cpus = func; } 254 static void set_numa_node_to_cpus(numa_node_to_cpus_func_t func) { _numa_node_to_cpus = func; }
253 static void set_numa_max_node(numa_max_node_func_t func) { _numa_max_node = func; } 255 static void set_numa_max_node(numa_max_node_func_t func) { _numa_max_node = func; }
254 static void set_numa_available(numa_available_func_t func) { _numa_available = func; } 256 static void set_numa_available(numa_available_func_t func) { _numa_available = func; }
255 static void set_numa_tonode_memory(numa_tonode_memory_func_t func) { _numa_tonode_memory = func; } 257 static void set_numa_tonode_memory(numa_tonode_memory_func_t func) { _numa_tonode_memory = func; }
256 258 static void set_numa_interleave_memory(numa_interleave_memory_func_t func) { _numa_interleave_memory = func; }
259 static void set_numa_all_nodes(unsigned long* ptr) { _numa_all_nodes = ptr; }
257 public: 260 public:
258 static int sched_getcpu() { return _sched_getcpu != NULL ? _sched_getcpu() : -1; } 261 static int sched_getcpu() { return _sched_getcpu != NULL ? _sched_getcpu() : -1; }
259 static int numa_node_to_cpus(int node, unsigned long *buffer, int bufferlen) { 262 static int numa_node_to_cpus(int node, unsigned long *buffer, int bufferlen) {
260 return _numa_node_to_cpus != NULL ? _numa_node_to_cpus(node, buffer, bufferlen) : -1; 263 return _numa_node_to_cpus != NULL ? _numa_node_to_cpus(node, buffer, bufferlen) : -1;
261 } 264 }
262 static int numa_max_node() { return _numa_max_node != NULL ? _numa_max_node() : -1; } 265 static int numa_max_node() { return _numa_max_node != NULL ? _numa_max_node() : -1; }
263 static int numa_available() { return _numa_available != NULL ? _numa_available() : -1; } 266 static int numa_available() { return _numa_available != NULL ? _numa_available() : -1; }
264 static int numa_tonode_memory(void *start, size_t size, int node) { 267 static int numa_tonode_memory(void *start, size_t size, int node) {
265 return _numa_tonode_memory != NULL ? _numa_tonode_memory(start, size, node) : -1; 268 return _numa_tonode_memory != NULL ? _numa_tonode_memory(start, size, node) : -1;
269 }
270 static void numa_interleave_memory(void *start, size_t size) {
271 if (_numa_interleave_memory != NULL && _numa_all_nodes != NULL) {
272 _numa_interleave_memory(start, size, _numa_all_nodes);
273 }
266 } 274 }
267 static int get_node_by_cpu(int cpu_id); 275 static int get_node_by_cpu(int cpu_id);
268 }; 276 };
269 277
270 278