VMALLOC_USER(9) Memory Management in Linux VMALLOC_USER(9)NAME
vmalloc_user - allocate zeroed virtually contiguous memory for userspace
void * vmalloc_user(unsigned long size);
The resulting memory area is zeroed so it can be mapped to userspace without leaking data.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 VMALLOC_USER(9)
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KMEM_CACHE_CREATE(9) Memory Management in Linux KMEM_CACHE_CREATE(9)NAME
kmem_cache_create - Create a cache.
struct kmem_cache * kmem_cache_create(const char * name, size_t size, size_t align, unsigned long flags, void (*ctor) (void *));
A string which is used in /proc/slabinfo to identify this cache.
The size of objects to be created in this cache.
The required alignment for the objects.
A constructor for the objects.
Returns a ptr to the cache on success, NULL on failure. Cannot be called within a int, but can be interrupted. The ctor is run when new
pages are allocated by the cache.
name must be valid until the cache is destroyed. This implies that the module calling this has to destroy the cache before getting
unloaded. Note that kmem_cache_name is not guaranteed to return the same pointer, therefore applications must manage it themselves.
The flags are
SLAB_POISON - Poison the slab with a known test pattern (a5a5a5a5) to catch references to uninitialised memory.
SLAB_RED_ZONE - Insert `Red' zones around the allocated memory to check for buffer overruns.
SLAB_HWCACHE_ALIGN - Align the objects in this cache to a hardware cacheline. This can be beneficial if you're counting cycles as closely
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 KMEM_CACHE_CREATE(9)
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