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new helper: uaccess_kernel()
Signed-off-by: Al Viro <[email protected]>
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32 changed files with 44 additions and 42 deletions
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@ -292,7 +292,7 @@ clear_user(void *addr, unsigned long size)
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}
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#define user_addr_max() \
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(segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
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(uaccess_kernel() ? ~0UL : TASK_SIZE)
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extern long strncpy_from_user(char *dest, const char __user *src, long count);
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