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-rw-r--r--include/linux/compat.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 35c2dbf2448a..5d46217f84ad 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -19,6 +19,10 @@
19#include <asm/siginfo.h> 19#include <asm/siginfo.h>
20#include <asm/signal.h> 20#include <asm/signal.h>
21 21
22#ifndef COMPAT_USE_64BIT_TIME
23#define COMPAT_USE_64BIT_TIME 0
24#endif
25
22#define compat_jiffies_to_clock_t(x) \ 26#define compat_jiffies_to_clock_t(x) \
23 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) 27 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
24 28
@@ -83,10 +87,26 @@ typedef struct {
83 compat_sigset_word sig[_COMPAT_NSIG_WORDS]; 87 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
84} compat_sigset_t; 88} compat_sigset_t;
85 89
90/*
91 * These functions operate strictly on struct compat_time*
92 */
86extern int get_compat_timespec(struct timespec *, 93extern int get_compat_timespec(struct timespec *,
87 const struct compat_timespec __user *); 94 const struct compat_timespec __user *);
88extern int put_compat_timespec(const struct timespec *, 95extern int put_compat_timespec(const struct timespec *,
89 struct compat_timespec __user *); 96 struct compat_timespec __user *);
97extern int get_compat_timeval(struct timeval *,
98 const struct compat_timeval __user *);
99extern int put_compat_timeval(const struct timeval *,
100 struct compat_timeval __user *);
101/*
102 * These functions operate on 32- or 64-bit specs depending on
103 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the
104 * naming as compat_get/put_ rather than get/put_compat_.
105 */
106extern int compat_get_timespec(struct timespec *, const void __user *);
107extern int compat_put_timespec(const struct timespec *, void __user *);
108extern int compat_get_timeval(struct timeval *, const void __user *);
109extern int compat_put_timeval(const struct timeval *, void __user *);
90 110
91struct compat_iovec { 111struct compat_iovec {
92 compat_uptr_t iov_base; 112 compat_uptr_t iov_base;