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futex(): support for cross address-space futexes

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This commit is contained in:
Balazs Gerofi
2015-11-24 14:33:48 +09:00
parent eb6de9d1de
commit 828a3ea57a
5 changed files with 119 additions and 68 deletions
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8
kernel/include/futex.h
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@ -241,13 +241,11 @@ static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
struct process_vm;
union futex_key {
#if 0
struct {
unsigned long pgoff;
struct inode *inode;
void *phys;
int offset;
} shared;
#endif
struct {
unsigned long address;
struct process_vm *mm;
@ -261,6 +259,7 @@ union futex_key {
};
#define FUTEX_KEY_INIT (union futex_key) { .both = { .ptr = NULL } }
#define FUT_OFF_MMSHARED 2
extern int futex_init(void);
@ -272,7 +271,8 @@ futex(
uint64_t timeout,
uint32_t __user * uaddr2,
uint32_t val2,
uint32_t val3
uint32_t val3,
int fshared
);