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Refactor "do write back only MAP_SHARED pages"

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* free_process_memory_range() always passes memobj to
  ihk_mc_pt_free_range()
* clear_range_*() don't flush page in fileobj with MF_PRIVATE flag

Fujitsu: POSTK_DEBUG_TEMP_FIX_87
Change-Id: I8d46d029b3fc51ca6f0e59d748a2fe93e324a374
This commit is contained in:
Masamichi Takagi
2018-10-12 13:37:50 +09:00
committed by Dominique Martinet
parent fb24dcea2e
commit 9cfc373538
7 changed files with 28 additions and 15 deletions
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3
kernel/syscall.c
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@@ -1746,7 +1746,8 @@ do_mmap(const uintptr_t addr0, const size_t len0, const int prot,
maxprot = PROT_READ | PROT_WRITE | PROT_EXEC;
if (!(flags & MAP_ANONYMOUS)) {
off = off0;
error = fileobj_create(fd, &memobj, &maxprot, addr0);
error = fileobj_create(fd, &memobj, &maxprot,
flags, addr0);
#ifdef ATTACHED_MIC
/*
* XXX: refuse device mapping in attached-mic now: