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SMP - Make sure that VM does not change pt of a process while kernel copies

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Tomas Hruby 2010-09-15 14:11:19 +00:00
parent e4283176ae
commit 421f324baa
1 changed files with 2 additions and 0 deletions
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kernel/arch/i386/memory.c
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@ -159,6 +159,8 @@ PRIVATE int lin_lin_copy(const struct proc *srcproc, vir_bytes srclinaddr,
if(dstproc) assert(!RTS_ISSET(dstproc, RTS_SLOT_FREE));
assert(!RTS_ISSET(get_cpulocal_var(ptproc), RTS_SLOT_FREE));
assert(get_cpulocal_var(ptproc)->p_seg.p_cr3_v);
if(srcproc) assert(!RTS_ISSET(srcproc, RTS_VMINHIBIT));
if(dstproc) assert(!RTS_ISSET(dstproc, RTS_VMINHIBIT));
while(bytes > 0) {
phys_bytes srcptr, dstptr;