K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2017-03-18T23:37:00.205053Z
K 7
svn:log
V 580
Avoid unnecessary calls to vm_map_protect() in elf_load_section().

Typically, when elf_load_section() unconditionally passed VM_PROT_ALL to
elf_map_insert(), it was needlessly enabling execute access on the
mapping, and it would later have to call vm_map_protect() to correct the
mapping's access rights.  Now, instead, elf_load_section() always passes
its parameter "prot" to elf_map_insert().  So, elf_load_section() must
only call vm_map_protect() if it needs to remove the write access that
was temporarily granted to perform a copyout().

Reviewed by:	kib
MFC after:	1 week

END