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pmap. For the kernel pmap, Giant is not required. In general, for other pmaps, Giant is required by i386's pmap_pte() implementation. Specifically, the use of PMAP2/PADDR2 is synchronized by Giant. Note: In principle, updates to the kernel pmap's wired count could be lost without Giant. However, in practice, we never use the kernel pmap's wired count. This will be resolved when pmap locking appears. - With the above change, cpu_thread_clean() and uma_large_free() need not acquire Giant. (The first case is simply the revival of i386/i386/vm_machdep.c's revision 1.226 by peter.) |
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compile | ||
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i386 | ||
ibcs2 | ||
include | ||
isa | ||
linux | ||
pci | ||
svr4 | ||
Makefile |