pread/pwrite syscalls - use page_unprotect_range() in vital cases to avoid...
pread/pwrite syscalls - use page_unprotect_range() in vital cases to avoid problems if the kernel writes data in protected page (needed for self-modifying code support) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@164 c046a42c-6fe2-441c-8c8c-71466251a162
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