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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2006-01-19 01:44:07 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-19 03:20:30 (GMT)
commit715b49ef2de6fcead0776d9349071670282faf65 (patch)
treed09b77c804aba3b191dc0ceb294387cf730ede4b /kernel/rcupdate.c
parent3213e913b0d6baeb28aa1affbdd4bfa7efedc35f (diff)
downloadlinux-fsl-qoriq-715b49ef2de6fcead0776d9349071670282faf65.tar.xz
[PATCH] EDAC: atomic scrub operations
EDAC requires a way to scrub memory if an ECC error is found and the chipset does not do the work automatically. That means rewriting memory locations atomically with respect to all CPUs _and_ bus masters. That means we can't use atomic_add(foo, 0) as it gets optimised for non-SMP This adds a function to include/asm-foo/atomic.h for the platforms currently supported which implements a scrub of a mapped block. It also adjusts a few other files include order where atomic.h is included before types.h as this now causes an error as atomic_scrub uses u32. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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