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[SPARC64]: Bulletproof MMU context locking.
authorDavid S. Miller <davem@sunset.davemloft.net>
Tue, 7 Mar 2006 03:59:50 +0000 (19:59 -0800)
committerDavid S. Miller <davem@sunset.davemloft.net>
Mon, 20 Mar 2006 09:14:20 +0000 (01:14 -0800)
commita77754b4d0731321db266c6c60ffcd7c62757da5
tree37cc4c6793e2b616791d42ee840e5a007a13eccbtree | snapshot
parent9132983ae140a8ca81e95e081d5a4c0dd7a7f670commit | diff
[SPARC64]: Bulletproof MMU context locking.

1) Always spin_lock_init() in init_context().  The caller essentially
   clears it out, or copies the mm info from the parent.  In both
   cases we need to explicitly initialize the spinlock.

2) Always do explicit IRQ disabling while taking mm->context.lock
   and ctx_alloc_lock.

Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc64/mm/init.c diff | blob | history
arch/sparc64/mm/tsb.c diff | blob | history
include/asm-sparc64/mmu_context.h diff | blob | history
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