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Diffstat (limited to 'Documentation/core-api/xarray.rst')
| -rw-r--r-- | Documentation/core-api/xarray.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/core-api/xarray.rst b/Documentation/core-api/xarray.rst index 4b101b4f3aa1..2b397da84bcd 100644 --- a/Documentation/core-api/xarray.rst +++ b/Documentation/core-api/xarray.rst @@ -293,6 +293,12 @@ to :c:func:`xas_retry`, and retry the operation if it returns ``true``. of this RCU period. You should restart the lookup from the head of the array. + * - Zero + - :c:func:`xa_is_zero` + - Zero entries appear as ``NULL`` through the Normal API, but occupy + an entry in the XArray which can be used to reserve the index for + future use. + Other internal entries may be added in the future. As far as possible, they will be handled by :c:func:`xas_retry`. |