From 4c50d9ea9ca9e46b65aeffed3e0d6f54ff38c8d4 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 22 Jan 2009 14:14:14 +0100 Subject: cpumask: modifiy oprofile initialization Delta patch to f7df8ed164996cd2c6aca9674388be6ef78d8b37 for tip/cpus4096. Moved initialization to sync_start()/sync_stop(). No changes needed in buffer_sync.h and oprof.c anymore. Signed-off-by: Robert Richter Signed-off-by: Ingo Molnar --- drivers/oprofile/buffer_sync.c | 20 ++++++-------------- drivers/oprofile/buffer_sync.h | 4 ---- drivers/oprofile/oprof.c | 9 +-------- 3 files changed, 7 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index c3ea5fa7d05a..8574622e36a5 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -154,6 +154,10 @@ int sync_start(void) { int err; + if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) + return -ENOMEM; + cpumask_clear(marked_cpus); + start_cpu_work(); err = task_handoff_register(&task_free_nb); @@ -179,6 +183,7 @@ out2: task_handoff_unregister(&task_free_nb); out1: end_sync(); + free_cpumask_var(marked_cpus); goto out; } @@ -190,6 +195,7 @@ void sync_stop(void) profile_event_unregister(PROFILE_TASK_EXIT, &task_exit_nb); task_handoff_unregister(&task_free_nb); end_sync(); + free_cpumask_var(marked_cpus); } @@ -565,20 +571,6 @@ void sync_buffer(int cpu) mutex_unlock(&buffer_mutex); } -int __init buffer_sync_init(void) -{ - if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL)) - return -ENOMEM; - - cpumask_clear(marked_cpus); - return 0; -} - -void __exit buffer_sync_cleanup(void) -{ - free_cpumask_var(marked_cpus); -} - /* The function can be used to add a buffer worth of data directly to * the kernel buffer. The buffer is assumed to be a circular buffer. * Take the entries from index start and end at index end, wrapping diff --git a/drivers/oprofile/buffer_sync.h b/drivers/oprofile/buffer_sync.h index 0ebf5db62679..3110732c1835 100644 --- a/drivers/oprofile/buffer_sync.h +++ b/drivers/oprofile/buffer_sync.h @@ -19,8 +19,4 @@ void sync_stop(void); /* sync the given CPU's buffer */ void sync_buffer(int cpu); -/* initialize/destroy the buffer system. */ -int buffer_sync_init(void); -void buffer_sync_cleanup(void); - #endif /* OPROFILE_BUFFER_SYNC_H */ diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c index ced39f602292..3cffce90f82a 100644 --- a/drivers/oprofile/oprof.c +++ b/drivers/oprofile/oprof.c @@ -183,10 +183,6 @@ static int __init oprofile_init(void) { int err; - err = buffer_sync_init(); - if (err) - return err; - err = oprofile_arch_init(&oprofile_ops); if (err < 0 || timer) { @@ -195,10 +191,8 @@ static int __init oprofile_init(void) } err = oprofilefs_register(); - if (err) { + if (err) oprofile_arch_exit(); - buffer_sync_cleanup(); - } return err; } @@ -208,7 +202,6 @@ static void __exit oprofile_exit(void) { oprofilefs_unregister(); oprofile_arch_exit(); - buffer_sync_cleanup(); } -- cgit v1.2.3 From 0ee2ad84d36760c8e36a6a6729998dc7a4eacf38 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 26 Jan 2009 06:45:10 -0800 Subject: sysrq: include interrupt.h instead of irq.h Impact: fix compile error on s390. With "cpumask: update irq_desc to use cpumask_var_t" in linux-next we get this compile bug on s390: CC drivers/char/sysrq.o In file included from drivers/char/sysrq.c:38: include/linux/irq.h: In function 'init_alloc_desc_masks': include/linux/irq.h:442: error: dereferencing pointer to incomplete type Cc: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- drivers/char/sysrq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index d41b9f6f7903..59214dba206d 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -35,7 +35,7 @@ #include #include #include -#include +#include #include #include -- cgit v1.2.3 From a70f730282019f487aa33a84e5ac9a5e89c5abd0 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Fri, 13 Mar 2009 14:49:46 +1030 Subject: cpumask: replace node_to_cpumask with cpumask_of_node. Impact: cleanup node_to_cpumask (and the blecherous node_to_cpumask_ptr which contained a declaration) are replaced now everyone implements cpumask_of_node. Signed-off-by: Rusty Russell --- drivers/base/node.c | 2 +- drivers/pci/pci-driver.c | 3 +-- include/linux/topology.h | 6 +----- mm/page_alloc.c | 6 +++--- mm/quicklist.c | 2 +- mm/slab.c | 2 +- mm/vmscan.c | 6 ++++-- net/sunrpc/svc.c | 3 +-- 8 files changed, 13 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/base/node.c b/drivers/base/node.c index f8f578a71b25..40b809742a1c 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -24,7 +24,7 @@ static struct sysdev_class node_class = { static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) { struct node *node_dev = to_node(dev); - node_to_cpumask_ptr(mask, node_dev->sysdev.id); + const struct cpumask *mask = cpumask_of_node(node_dev->sysdev.id); int len; /* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */ diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 93eac1423585..b522f883d674 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -212,10 +212,9 @@ static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, node = dev_to_node(&dev->dev); if (node >= 0) { int cpu; - node_to_cpumask_ptr(nodecpumask, node); get_online_cpus(); - cpu = cpumask_any_and(nodecpumask, cpu_online_mask); + cpu = cpumask_any_and(cpumask_of_node(node), cpu_online_mask); if (cpu < nr_cpu_ids) error = work_on_cpu(cpu, local_pci_probe, &ddi); else diff --git a/include/linux/topology.h b/include/linux/topology.h index a16b9e06f2e5..16b7d6896ce9 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -38,11 +38,7 @@ #endif #ifndef nr_cpus_node -#define nr_cpus_node(node) \ - ({ \ - node_to_cpumask_ptr(__tmp__, node); \ - cpus_weight(*__tmp__); \ - }) +#define nr_cpus_node(node) cpumask_weight(cpumask_of_node(node)) #endif #define for_each_node_with_cpus(node) \ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5c44ed49ca93..a92b0975b9a5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2134,7 +2134,7 @@ static int find_next_best_node(int node, nodemask_t *used_node_mask) int n, val; int min_val = INT_MAX; int best_node = -1; - node_to_cpumask_ptr(tmp, 0); + const struct cpumask *tmp = cpumask_of_node(0); /* Use the local node if we haven't already */ if (!node_isset(node, *used_node_mask)) { @@ -2155,8 +2155,8 @@ static int find_next_best_node(int node, nodemask_t *used_node_mask) val += (n < node); /* Give preference to headless and unused nodes */ - node_to_cpumask_ptr_next(tmp, n); - if (!cpus_empty(*tmp)) + tmp = cpumask_of_node(n); + if (!cpumask_empty(tmp)) val += PENALTY_FOR_NODE_WITH_CPUS; /* Slight preference for less loaded node */ diff --git a/mm/quicklist.c b/mm/quicklist.c index 8dbb6805ef35..e66d07d1b4ff 100644 --- a/mm/quicklist.c +++ b/mm/quicklist.c @@ -29,7 +29,7 @@ static unsigned long max_pages(unsigned long min_pages) int node = numa_node_id(); struct zone *zones = NODE_DATA(node)->node_zones; int num_cpus_on_node; - node_to_cpumask_ptr(cpumask_on_node, node); + const struct cpumask *cpumask_on_node = cpumask_of_node(node); node_free_pages = #ifdef CONFIG_ZONE_DMA diff --git a/mm/slab.c b/mm/slab.c index 4d00855629c4..2daaca0b4541 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1160,7 +1160,7 @@ static void __cpuinit cpuup_canceled(long cpu) struct kmem_cache *cachep; struct kmem_list3 *l3 = NULL; int node = cpu_to_node(cpu); - node_to_cpumask_ptr(mask, node); + const struct cpumask *mask = cpumask_of_node(node); list_for_each_entry(cachep, &cache_chain, next) { struct array_cache *nc; diff --git a/mm/vmscan.c b/mm/vmscan.c index 6177e3bcd66b..cc6135586b44 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1963,7 +1963,7 @@ static int kswapd(void *p) struct reclaim_state reclaim_state = { .reclaimed_slab = 0, }; - node_to_cpumask_ptr(cpumask, pgdat->node_id); + const struct cpumask *cpumask = cpumask_of_node(pgdat->node_id); if (!cpumask_empty(cpumask)) set_cpus_allowed_ptr(tsk, cpumask); @@ -2198,7 +2198,9 @@ static int __devinit cpu_callback(struct notifier_block *nfb, if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN) { for_each_node_state(nid, N_HIGH_MEMORY) { pg_data_t *pgdat = NODE_DATA(nid); - node_to_cpumask_ptr(mask, pgdat->node_id); + const struct cpumask *mask; + + mask = cpumask_of_node(pgdat->node_id); if (cpumask_any_and(cpu_online_mask, mask) < nr_cpu_ids) /* One of our CPUs online: restore mask */ diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index c51fed4d1af1..3bdd5bffaca8 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -317,8 +317,7 @@ svc_pool_map_set_cpumask(struct task_struct *task, unsigned int pidx) } case SVC_POOL_PERNODE: { - node_to_cpumask_ptr(nodecpumask, node); - set_cpus_allowed_ptr(task, nodecpumask); + set_cpus_allowed_ptr(task, cpumask_of_node(node)); break; } } -- cgit v1.2.3 From d680eb8bcd0e43b20067fd2c810d76463db5444e Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Fri, 13 Mar 2009 14:49:56 +1030 Subject: cpumask: make Xen use the new operators. Impact: cleanup In particular, *map are deprecated, and you have to use the accessors as *mask are const. Signed-off-by: Rusty Russell To: Jeremy Fitzhardinge --- drivers/xen/cpu_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c index 974f56d1ebe1..5f54c01c1568 100644 --- a/drivers/xen/cpu_hotplug.c +++ b/drivers/xen/cpu_hotplug.c @@ -10,7 +10,7 @@ static void enable_hotplug_cpu(int cpu) if (!cpu_present(cpu)) arch_register_cpu(cpu); - cpu_set(cpu, cpu_present_map); + set_cpu_present(cpu, true); } static void disable_hotplug_cpu(int cpu) @@ -18,7 +18,7 @@ static void disable_hotplug_cpu(int cpu) if (cpu_present(cpu)) arch_unregister_cpu(cpu); - cpu_clear(cpu, cpu_present_map); + set_cpu_present(cpu, false); } static void vcpu_hotplug(unsigned int cpu) -- cgit v1.2.3