The xa_load function brings with it a lot of infrastructure; xa_empty(), xa_is_err(), and large chunks of the XArray advanced API that are used to implement xa_load. As the test-suite demonstrates, it is possible to use the XArray functions on a radix tree. The radix tree functions depend on the GFP flags being stored in the root of the tree, so it's not possible to use the radix tree functions on an XArray.
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| @@ -70,6 +70,7 @@ · 69 unmodified lines | ||
| 70 | 70 | #define BUG_ON(cond) assert(!(cond)) |
| 71 | 71 | #endif |
| 72 | 72 | #endif |
| 73 | +#define BUG() BUG_ON(1) | |
| 73 | 74 | |
| 74 | 75 | #if __BYTE_ORDER == __BIG_ENDIAN |
| 75 | 76 | #define cpu_to_le16 bswap_16 |