Messages in this thread | | | Date | Mon, 10 Nov 2014 16:23:57 -0800 | Subject | Confusion about __do_fault and MM_ANONPAGES | From | Joel Fernandes <> |
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Hi,
I have some confusion about when is anon=1 when __do_fault is called.
__do_fault seems to be called only when the page fault is of a linear or a non-linear mapping. My understanding is neither of these can be anonymous, so I am confused about the below code fragment:
In which case is anon=1 when memory.c::__do_fault is called? In __do_fault, you'll see something like... if (anon) { inc_mm_counter_fast(mm, MM_ANONPAGES); page_add_new_anon_rmap(page, vma, address); } else {
Thanks! Joel
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