[POWERPC] spufs: add memory barriers after set_bit
authorArnd Bergmann <arnd.bergmann@de.ibm.com>
Mon, 23 Apr 2007 19:08:10 +0000 (21:08 +0200)
committerArnd Bergmann <arnd@klappe.arndb.de>
Mon, 23 Apr 2007 19:18:54 +0000 (21:18 +0200)
set_bit does not guarantee ordering on powerpc, so using it
for communication between threads requires explicit
mb() calls.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

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