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support private mapped file

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This commit is contained in:
NAKAMURA Gou
2013-08-09 20:55:17 +09:00
parent 603ef85454
commit 27172ad413
17 changed files with 1392 additions and 133 deletions
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60
kernel/include/memobj.h Normal file
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#ifndef HEADER_MEMOBJ_H
#define HEADER_MEMOBJ_H
#include <ihk/types.h>
#include <ihk/atomic.h>
#include <ihk/lock.h>
#include <list.h>
struct memobj {
struct memobj_ops * ops;
ihk_spinlock_t lock;
};
typedef void memobj_release_func_t(struct memobj *obj);
typedef void memobj_ref_func_t(struct memobj *obj);
typedef int memobj_get_page_func_t(struct memobj *obj, off_t off, int p2align, uintptr_t *physp);
typedef uintptr_t memobj_copy_page_func_t(struct memobj *obj, uintptr_t orgphys, int p2align);
struct memobj_ops {
memobj_release_func_t * release;
memobj_ref_func_t * ref;
memobj_get_page_func_t * get_page;
memobj_copy_page_func_t * copy_page;
};
static inline void memobj_release(struct memobj *obj)
{
(*obj->ops->release)(obj);
}
static inline void memobj_ref(struct memobj *obj)
{
(*obj->ops->ref)(obj);
}
static inline int memobj_get_page(struct memobj *obj, off_t off,
int p2align, uintptr_t *physp)
{
return (*obj->ops->get_page)(obj, off, p2align, physp);
}
static inline uintptr_t memobj_copy_page(struct memobj *obj,
uintptr_t orgphys, int p2align)
{
return (*obj->ops->copy_page)(obj, orgphys, p2align);
}
static inline void memobj_lock(struct memobj *obj)
{
ihk_mc_spinlock_lock_noirq(&obj->lock);
}
static inline void memobj_unlock(struct memobj *obj)
{
ihk_mc_spinlock_unlock_noirq(&obj->lock);
}
int fileobj_create(int fd, struct memobj **objp, int *maxprotp);
#endif /* HEADER_MEMOBJ_H */