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authorIngo Molnar <mingo@elte.hu>2007-02-10 01:46:36 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-11 11:18:07 -0800
commit656dad312fb41ed95ef08325e9df9bece3aacbbb (patch)
tree34d0a2c1e4b78104148850abc8a1359ce06c3f13 /mm/page-writeback.c
parent3e4fdaf8aebe489e8e59826fdf78cb64356d2ad0 (diff)
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[PATCH] highmem: catch illegal nesting
Catch illegally nested kmap_atomic()s even if the page that is mapped by the 'inner' instance is from lowmem. This avoids spuriously zapped kmap-atomic ptes and turns hard to find crashes into clear asserts at the bug site. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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