diff options
Diffstat (limited to 'include/asm-um')
-rw-r--r-- | include/asm-um/futex.h | 51 | ||||
-rw-r--r-- | include/asm-um/pgtable.h | 1 | ||||
-rw-r--r-- | include/asm-um/uaccess.h | 2 |
3 files changed, 6 insertions, 48 deletions
diff --git a/include/asm-um/futex.h b/include/asm-um/futex.h index 2cac5ecd9d00..142ee2d8e0fd 100644 --- a/include/asm-um/futex.h +++ b/include/asm-um/futex.h | |||
@@ -1,53 +1,12 @@ | |||
1 | #ifndef _ASM_FUTEX_H | 1 | #ifndef __UM_FUTEX_H |
2 | #define _ASM_FUTEX_H | 2 | #define __UM_FUTEX_H |
3 | |||
4 | #ifdef __KERNEL__ | ||
5 | 3 | ||
6 | #include <linux/futex.h> | 4 | #include <linux/futex.h> |
7 | #include <asm/errno.h> | 5 | #include <asm/errno.h> |
6 | #include <asm/system.h> | ||
7 | #include <asm/processor.h> | ||
8 | #include <asm/uaccess.h> | 8 | #include <asm/uaccess.h> |
9 | 9 | ||
10 | static inline int | 10 | #include "asm/arch/futex.h" |
11 | futex_atomic_op_inuser (int encoded_op, int __user *uaddr) | ||
12 | { | ||
13 | int op = (encoded_op >> 28) & 7; | ||
14 | int cmp = (encoded_op >> 24) & 15; | ||
15 | int oparg = (encoded_op << 8) >> 20; | ||
16 | int cmparg = (encoded_op << 20) >> 20; | ||
17 | int oldval = 0, ret, tem; | ||
18 | if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) | ||
19 | oparg = 1 << oparg; | ||
20 | |||
21 | if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) | ||
22 | return -EFAULT; | ||
23 | |||
24 | inc_preempt_count(); | ||
25 | |||
26 | switch (op) { | ||
27 | case FUTEX_OP_SET: | ||
28 | case FUTEX_OP_ADD: | ||
29 | case FUTEX_OP_OR: | ||
30 | case FUTEX_OP_ANDN: | ||
31 | case FUTEX_OP_XOR: | ||
32 | default: | ||
33 | ret = -ENOSYS; | ||
34 | } | ||
35 | 11 | ||
36 | dec_preempt_count(); | ||
37 | |||
38 | if (!ret) { | ||
39 | switch (cmp) { | ||
40 | case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; | ||
41 | case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; | ||
42 | case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; | ||
43 | case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; | ||
44 | case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; | ||
45 | case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; | ||
46 | default: ret = -ENOSYS; | ||
47 | } | ||
48 | } | ||
49 | return ret; | ||
50 | } | ||
51 | |||
52 | #endif | ||
53 | #endif | 12 | #endif |
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index ed06170e0edd..616d02b57ea9 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h | |||
@@ -346,7 +346,6 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval) | |||
346 | static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) | 346 | static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) |
347 | { | 347 | { |
348 | pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot); | 348 | pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot); |
349 | if(pte_present(pte)) pte = pte_mknewpage(pte_mknewprot(pte)); | ||
350 | return pte; | 349 | return pte; |
351 | } | 350 | } |
352 | 351 | ||
diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h index 801710d00a40..2ee028b8de9d 100644 --- a/include/asm-um/uaccess.h +++ b/include/asm-um/uaccess.h | |||
@@ -44,7 +44,7 @@ | |||
44 | const __typeof__(ptr) __private_ptr = ptr; \ | 44 | const __typeof__(ptr) __private_ptr = ptr; \ |
45 | __typeof__(*(__private_ptr)) __private_val; \ | 45 | __typeof__(*(__private_ptr)) __private_val; \ |
46 | int __private_ret = -EFAULT; \ | 46 | int __private_ret = -EFAULT; \ |
47 | (x) = 0; \ | 47 | (x) = (__typeof__(*(__private_ptr)))0; \ |
48 | if (__copy_from_user(&__private_val, (__private_ptr), \ | 48 | if (__copy_from_user(&__private_val, (__private_ptr), \ |
49 | sizeof(*(__private_ptr))) == 0) {\ | 49 | sizeof(*(__private_ptr))) == 0) {\ |
50 | (x) = (__typeof__(*(__private_ptr))) __private_val; \ | 50 | (x) = (__typeof__(*(__private_ptr))) __private_val; \ |