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xarray: Add XArray marks

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XArray marks are like the radix tree tags, only slightly more strongly
typed.  They are renamed in order to distinguish them from tagged
pointers.  This commit adds the basic get/set/clear operations.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
This commit is contained in:
Matthew Wilcox
2017-11-10 09:34:31 -05:00
parent ad3d6c7263
commit 9b89a03551
7 changed files with 444 additions and 12 deletions
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tools/include/asm-generic/bitops.h
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@@ -27,5 +27,6 @@
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/atomic.h>
#include <asm-generic/bitops/non-atomic.h>
#endif /* __TOOLS_ASM_GENERIC_BITOPS_H */