diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/bounce.c | 5 | ||||
| -rw-r--r-- | mm/mlock.c | 51 | ||||
| -rw-r--r-- | mm/slab.c | 2 | ||||
| -rw-r--r-- | mm/slob.c | 2 | ||||
| -rw-r--r-- | mm/slub.c | 2 | ||||
| -rw-r--r-- | mm/util.c | 11 |
6 files changed, 29 insertions, 44 deletions
diff --git a/mm/bounce.c b/mm/bounce.c index e590272fe7a..65f5e17e411 100644 --- a/mm/bounce.c +++ b/mm/bounce.c @@ -14,16 +14,15 @@ #include <linux/hash.h> #include <linux/highmem.h> #include <linux/blktrace_api.h> -#include <trace/block.h> #include <asm/tlbflush.h> +#include <trace/events/block.h> + #define POOL_SIZE 64 #define ISA_POOL_SIZE 16 static mempool_t *page_pool, *isa_page_pool; -DEFINE_TRACE(block_bio_bounce); - #ifdef CONFIG_HIGHMEM static __init int init_emergency_pool(void) { diff --git a/mm/mlock.c b/mm/mlock.c index cbe9e0581b7..ac130433c7d 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -629,52 +629,43 @@ void user_shm_unlock(size_t size, struct user_struct *user) free_uid(user); } -void *alloc_locked_buffer(size_t size) +int account_locked_memory(struct mm_struct *mm, struct rlimit *rlim, + size_t size) { - unsigned long rlim, vm, pgsz; - void *buffer = NULL; + unsigned long lim, vm, pgsz; + int error = -ENOMEM; pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT; - down_write(¤t->mm->mmap_sem); - - rlim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT; - vm = current->mm->total_vm + pgsz; - if (rlim < vm) - goto out; + down_write(&mm->mmap_sem); - rlim = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT; - vm = current->mm->locked_vm + pgsz; - if (rlim < vm) + lim = rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT; + vm = mm->total_vm + pgsz; + if (lim < vm) goto out; - buffer = kzalloc(size, GFP_KERNEL); - if (!buffer) + lim = rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT; + vm = mm->locked_vm + pgsz; + if (lim < vm) goto out; - current->mm->total_vm += pgsz; - current->mm->locked_vm += pgsz; + mm->total_vm += pgsz; + mm->locked_vm += pgsz; + error = 0; out: - up_write(¤t->mm->mmap_sem); - return buffer; + up_write(&mm->mmap_sem); + return error; } -void release_locked_buffer(void *buffer, size_t size) +void refund_locked_memory(struct mm_struct *mm, size_t size) { unsigned long pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT; - down_write(¤t->mm->mmap_sem); - - current->mm->total_vm -= pgsz; - current->mm->locked_vm -= pgsz; - - up_write(¤t->mm->mmap_sem); -} + down_write(&mm->mmap_sem); -void free_locked_buffer(void *buffer, size_t size) -{ - release_locked_buffer(buffer, size); + mm->total_vm -= pgsz; + mm->locked_vm -= pgsz; - kfree(buffer); + up_write(&mm->mmap_sem); } diff --git a/mm/slab.c b/mm/slab.c index 9a90b00d2f9..f85831da908 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -102,7 +102,7 @@ #include <linux/cpu.h> #include <linux/sysctl.h> #include <linux/module.h> -#include <trace/kmemtrace.h> +#include <linux/kmemtrace.h> #include <linux/rcupdate.h> #include <linux/string.h> #include <linux/uaccess.h> diff --git a/mm/slob.c b/mm/slob.c index f92e66d558b..9b1737b0787 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -66,7 +66,7 @@ #include <linux/module.h> #include <linux/rcupdate.h> #include <linux/list.h> -#include <trace/kmemtrace.h> +#include <linux/kmemtrace.h> #include <asm/atomic.h> /* diff --git a/mm/slub.c b/mm/slub.c index 65ffda5934b..5e805a6fe36 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -17,7 +17,7 @@ #include <linux/slab.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> -#include <trace/kmemtrace.h> +#include <linux/kmemtrace.h> #include <linux/cpu.h> #include <linux/cpuset.h> #include <linux/mempolicy.h> diff --git a/mm/util.c b/mm/util.c index 55bef160b9f..abc65aa7cdf 100644 --- a/mm/util.c +++ b/mm/util.c @@ -4,9 +4,11 @@ #include <linux/module.h> #include <linux/err.h> #include <linux/sched.h> -#include <linux/tracepoint.h> #include <asm/uaccess.h> +#define CREATE_TRACE_POINTS +#include <trace/events/kmem.h> + /** * kstrdup - allocate space for and copy an existing string * @s: the string to duplicate @@ -255,13 +257,6 @@ int __attribute__((weak)) get_user_pages_fast(unsigned long start, EXPORT_SYMBOL_GPL(get_user_pages_fast); /* Tracepoints definitions. */ -DEFINE_TRACE(kmalloc); -DEFINE_TRACE(kmem_cache_alloc); -DEFINE_TRACE(kmalloc_node); -DEFINE_TRACE(kmem_cache_alloc_node); -DEFINE_TRACE(kfree); -DEFINE_TRACE(kmem_cache_free); - EXPORT_TRACEPOINT_SYMBOL(kmalloc); EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc); EXPORT_TRACEPOINT_SYMBOL(kmalloc_node); |