On Mon, 2012-07-23 at 12:36 +0900, sf...@users.sourceforge.net wrote: > Ben Hutchings: > > security_mmap_addr() is called with mmap_sem held, but anyway we don't > > need to call it from aufs... > > security_mmap_addr() is called with mmap_sem held?? > Which source file are you reading?
do_mmap_pgoff() /* The caller must hold down_write(¤t->mm->mmap_sem) */ -> get_unmapped_area() -> security_mmap_addr() sys_brk() -> down_write(&mm->mmap_sem); -> do_brk() -> get_unmapped_area() -> security_mmap_addr() __get_user_pages() /* Must be called with mmap_sem held for read or write */ -> find_extend_vma() -> expand_stack() -> expand_downwards() -> security_mmap_addr() Ben. -- Ben Hutchings Who are all these weirdos? - David Bowie, about L-Space IRC channel #afp
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