Question about swap_in() in 2.2.16 ....

[Shuvabrata Ganguly <sganguly@cse.iitkgp.ernet.in>]

hi,

after the missing page has been swapped in this bit of code is
executed:-

if (!write_access || is_page_shared(page_map)) {
      set_pte(page_table, mk_pte(page, vma->vm_page_prot));
      return 1;
 }

Now this creates a read-only mapping  even if the access was a "write
acess"  ( if the page is shared ). Doesnt this mean that an additional
"write-protect" fault will be taken immediately when the process tries
to write again ? Or am i missing something here ?

joy

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