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f14d6b4f52
we want to check that address is below TASK_SIZE; sure, __access_ok(addr, 0, USER_DS) will do that, but it's more straightforward to just spell it out and that way we can get rid of the damn 'segment' argument of __access_ok(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>