docs: remove :c:func: annotations from xarray.rst
Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Jonathan Corbet
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@ -30,27 +30,27 @@ it called marks. Each mark may be set or cleared independently of
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the others. You can iterate over entries which are marked.
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Normal pointers may be stored in the XArray directly. They must be 4-byte
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aligned, which is true for any pointer returned from :c:func:`kmalloc` and
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:c:func:`alloc_page`. It isn't true for arbitrary user-space pointers,
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aligned, which is true for any pointer returned from kmalloc() and
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alloc_page(). It isn't true for arbitrary user-space pointers,
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nor for function pointers. You can store pointers to statically allocated
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objects, as long as those objects have an alignment of at least 4.
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You can also store integers between 0 and ``LONG_MAX`` in the XArray.
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You must first convert it into an entry using :c:func:`xa_mk_value`.
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You must first convert it into an entry using xa_mk_value().
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When you retrieve an entry from the XArray, you can check whether it is
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a value entry by calling :c:func:`xa_is_value`, and convert it back to
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an integer by calling :c:func:`xa_to_value`.
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a value entry by calling xa_is_value(), and convert it back to
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an integer by calling xa_to_value().
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Some users want to store tagged pointers instead of using the marks
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described above. They can call :c:func:`xa_tag_pointer` to create an
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entry with a tag, :c:func:`xa_untag_pointer` to turn a tagged entry
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back into an untagged pointer and :c:func:`xa_pointer_tag` to retrieve
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described above. They can call xa_tag_pointer() to create an
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entry with a tag, xa_untag_pointer() to turn a tagged entry
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back into an untagged pointer and xa_pointer_tag() to retrieve
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the tag of an entry. Tagged pointers use the same bits that are used
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to distinguish value entries from normal pointers, so each user must
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decide whether they want to store value entries or tagged pointers in
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any particular XArray.
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The XArray does not support storing :c:func:`IS_ERR` pointers as some
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The XArray does not support storing IS_ERR() pointers as some
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conflict with value entries or internal entries.
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An unusual feature of the XArray is the ability to create entries which
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@ -64,89 +64,89 @@ entry will cause the XArray to forget about the range.
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Normal API
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==========
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Start by initialising an XArray, either with :c:func:`DEFINE_XARRAY`
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for statically allocated XArrays or :c:func:`xa_init` for dynamically
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Start by initialising an XArray, either with DEFINE_XARRAY()
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for statically allocated XArrays or xa_init() for dynamically
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allocated ones. A freshly-initialised XArray contains a ``NULL``
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pointer at every index.
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You can then set entries using :c:func:`xa_store` and get entries
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using :c:func:`xa_load`. xa_store will overwrite any entry with the
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You can then set entries using xa_store() and get entries
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using xa_load(). xa_store will overwrite any entry with the
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new entry and return the previous entry stored at that index. You can
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use :c:func:`xa_erase` instead of calling :c:func:`xa_store` with a
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use xa_erase() instead of calling xa_store() with a
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``NULL`` entry. There is no difference between an entry that has never
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been stored to, one that has been erased and one that has most recently
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had ``NULL`` stored to it.
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You can conditionally replace an entry at an index by using
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:c:func:`xa_cmpxchg`. Like :c:func:`cmpxchg`, it will only succeed if
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xa_cmpxchg(). Like cmpxchg(), it will only succeed if
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the entry at that index has the 'old' value. It also returns the entry
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which was at that index; if it returns the same entry which was passed as
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'old', then :c:func:`xa_cmpxchg` succeeded.
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'old', then xa_cmpxchg() succeeded.
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If you want to only store a new entry to an index if the current entry
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at that index is ``NULL``, you can use :c:func:`xa_insert` which
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at that index is ``NULL``, you can use xa_insert() which
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returns ``-EBUSY`` if the entry is not empty.
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You can enquire whether a mark is set on an entry by using
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:c:func:`xa_get_mark`. If the entry is not ``NULL``, you can set a mark
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on it by using :c:func:`xa_set_mark` and remove the mark from an entry by
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calling :c:func:`xa_clear_mark`. You can ask whether any entry in the
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XArray has a particular mark set by calling :c:func:`xa_marked`.
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xa_get_mark(). If the entry is not ``NULL``, you can set a mark
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on it by using xa_set_mark() and remove the mark from an entry by
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calling xa_clear_mark(). You can ask whether any entry in the
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XArray has a particular mark set by calling xa_marked().
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You can copy entries out of the XArray into a plain array by calling
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:c:func:`xa_extract`. Or you can iterate over the present entries in
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the XArray by calling :c:func:`xa_for_each`. You may prefer to use
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:c:func:`xa_find` or :c:func:`xa_find_after` to move to the next present
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xa_extract(). Or you can iterate over the present entries in
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the XArray by calling xa_for_each(). You may prefer to use
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xa_find() or xa_find_after() to move to the next present
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entry in the XArray.
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Calling :c:func:`xa_store_range` stores the same entry in a range
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Calling xa_store_range() stores the same entry in a range
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of indices. If you do this, some of the other operations will behave
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in a slightly odd way. For example, marking the entry at one index
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may result in the entry being marked at some, but not all of the other
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indices. Storing into one index may result in the entry retrieved by
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some, but not all of the other indices changing.
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Sometimes you need to ensure that a subsequent call to :c:func:`xa_store`
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will not need to allocate memory. The :c:func:`xa_reserve` function
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Sometimes you need to ensure that a subsequent call to xa_store()
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will not need to allocate memory. The xa_reserve() function
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will store a reserved entry at the indicated index. Users of the
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normal API will see this entry as containing ``NULL``. If you do
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not need to use the reserved entry, you can call :c:func:`xa_release`
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not need to use the reserved entry, you can call xa_release()
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to remove the unused entry. If another user has stored to the entry
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in the meantime, :c:func:`xa_release` will do nothing; if instead you
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want the entry to become ``NULL``, you should use :c:func:`xa_erase`.
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Using :c:func:`xa_insert` on a reserved entry will fail.
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in the meantime, xa_release() will do nothing; if instead you
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want the entry to become ``NULL``, you should use xa_erase().
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Using xa_insert() on a reserved entry will fail.
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If all entries in the array are ``NULL``, the :c:func:`xa_empty` function
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If all entries in the array are ``NULL``, the xa_empty() function
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will return ``true``.
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Finally, you can remove all entries from an XArray by calling
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:c:func:`xa_destroy`. If the XArray entries are pointers, you may wish
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xa_destroy(). If the XArray entries are pointers, you may wish
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to free the entries first. You can do this by iterating over all present
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entries in the XArray using the :c:func:`xa_for_each` iterator.
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entries in the XArray using the xa_for_each() iterator.
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Allocating XArrays
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------------------
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If you use :c:func:`DEFINE_XARRAY_ALLOC` to define the XArray, or
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initialise it by passing ``XA_FLAGS_ALLOC`` to :c:func:`xa_init_flags`,
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If you use DEFINE_XARRAY_ALLOC() to define the XArray, or
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initialise it by passing ``XA_FLAGS_ALLOC`` to xa_init_flags(),
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the XArray changes to track whether entries are in use or not.
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You can call :c:func:`xa_alloc` to store the entry at an unused index
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You can call xa_alloc() to store the entry at an unused index
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in the XArray. If you need to modify the array from interrupt context,
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you can use :c:func:`xa_alloc_bh` or :c:func:`xa_alloc_irq` to disable
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you can use xa_alloc_bh() or xa_alloc_irq() to disable
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interrupts while allocating the ID.
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Using :c:func:`xa_store`, :c:func:`xa_cmpxchg` or :c:func:`xa_insert` will
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Using xa_store(), xa_cmpxchg() or xa_insert() will
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also mark the entry as being allocated. Unlike a normal XArray, storing
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``NULL`` will mark the entry as being in use, like :c:func:`xa_reserve`.
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To free an entry, use :c:func:`xa_erase` (or :c:func:`xa_release` if
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``NULL`` will mark the entry as being in use, like xa_reserve().
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To free an entry, use xa_erase() (or xa_release() if
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you only want to free the entry if it's ``NULL``).
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By default, the lowest free entry is allocated starting from 0. If you
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want to allocate entries starting at 1, it is more efficient to use
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:c:func:`DEFINE_XARRAY_ALLOC1` or ``XA_FLAGS_ALLOC1``. If you want to
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DEFINE_XARRAY_ALLOC1() or ``XA_FLAGS_ALLOC1``. If you want to
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allocate IDs up to a maximum, then wrap back around to the lowest free
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ID, you can use :c:func:`xa_alloc_cyclic`.
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ID, you can use xa_alloc_cyclic().
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You cannot use ``XA_MARK_0`` with an allocating XArray as this mark
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is used to track whether an entry is free or not. The other marks are
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@ -155,17 +155,17 @@ available for your use.
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Memory allocation
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-----------------
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The :c:func:`xa_store`, :c:func:`xa_cmpxchg`, :c:func:`xa_alloc`,
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:c:func:`xa_reserve` and :c:func:`xa_insert` functions take a gfp_t
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The xa_store(), xa_cmpxchg(), xa_alloc(),
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xa_reserve() and xa_insert() functions take a gfp_t
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parameter in case the XArray needs to allocate memory to store this entry.
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If the entry is being deleted, no memory allocation needs to be performed,
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and the GFP flags specified will be ignored.
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It is possible for no memory to be allocatable, particularly if you pass
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a restrictive set of GFP flags. In that case, the functions return a
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special value which can be turned into an errno using :c:func:`xa_err`.
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special value which can be turned into an errno using xa_err().
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If you don't need to know exactly which error occurred, using
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:c:func:`xa_is_err` is slightly more efficient.
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xa_is_err() is slightly more efficient.
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Locking
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-------
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@ -174,54 +174,54 @@ When using the Normal API, you do not have to worry about locking.
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The XArray uses RCU and an internal spinlock to synchronise access:
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No lock needed:
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* :c:func:`xa_empty`
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* :c:func:`xa_marked`
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* xa_empty()
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* xa_marked()
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Takes RCU read lock:
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* :c:func:`xa_load`
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* :c:func:`xa_for_each`
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* :c:func:`xa_find`
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* :c:func:`xa_find_after`
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* :c:func:`xa_extract`
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* :c:func:`xa_get_mark`
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* xa_load()
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* xa_for_each()
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* xa_find()
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* xa_find_after()
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* xa_extract()
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* xa_get_mark()
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Takes xa_lock internally:
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* :c:func:`xa_store`
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* :c:func:`xa_store_bh`
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* :c:func:`xa_store_irq`
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* :c:func:`xa_insert`
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* :c:func:`xa_insert_bh`
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* :c:func:`xa_insert_irq`
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* :c:func:`xa_erase`
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* :c:func:`xa_erase_bh`
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* :c:func:`xa_erase_irq`
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* :c:func:`xa_cmpxchg`
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* :c:func:`xa_cmpxchg_bh`
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* :c:func:`xa_cmpxchg_irq`
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* :c:func:`xa_store_range`
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* :c:func:`xa_alloc`
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* :c:func:`xa_alloc_bh`
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* :c:func:`xa_alloc_irq`
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* :c:func:`xa_reserve`
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* :c:func:`xa_reserve_bh`
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* :c:func:`xa_reserve_irq`
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* :c:func:`xa_destroy`
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* :c:func:`xa_set_mark`
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* :c:func:`xa_clear_mark`
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* xa_store()
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* xa_store_bh()
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* xa_store_irq()
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* xa_insert()
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* xa_insert_bh()
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* xa_insert_irq()
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* xa_erase()
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* xa_erase_bh()
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* xa_erase_irq()
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* xa_cmpxchg()
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* xa_cmpxchg_bh()
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* xa_cmpxchg_irq()
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* xa_store_range()
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* xa_alloc()
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* xa_alloc_bh()
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* xa_alloc_irq()
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* xa_reserve()
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* xa_reserve_bh()
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* xa_reserve_irq()
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* xa_destroy()
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* xa_set_mark()
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* xa_clear_mark()
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Assumes xa_lock held on entry:
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* :c:func:`__xa_store`
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* :c:func:`__xa_insert`
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* :c:func:`__xa_erase`
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* :c:func:`__xa_cmpxchg`
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* :c:func:`__xa_alloc`
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* :c:func:`__xa_set_mark`
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* :c:func:`__xa_clear_mark`
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* __xa_store()
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* __xa_insert()
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* __xa_erase()
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* __xa_cmpxchg()
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* __xa_alloc()
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* __xa_set_mark()
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* __xa_clear_mark()
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If you want to take advantage of the lock to protect the data structures
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that you are storing in the XArray, you can call :c:func:`xa_lock`
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before calling :c:func:`xa_load`, then take a reference count on the
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object you have found before calling :c:func:`xa_unlock`. This will
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that you are storing in the XArray, you can call xa_lock()
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before calling xa_load(), then take a reference count on the
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object you have found before calling xa_unlock(). This will
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prevent stores from removing the object from the array between looking
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up the object and incrementing the refcount. You can also use RCU to
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avoid dereferencing freed memory, but an explanation of that is beyond
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@ -261,7 +261,7 @@ context and then erase them in softirq context, you can do that this way::
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}
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If you are going to modify the XArray from interrupt or softirq context,
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you need to initialise the array using :c:func:`xa_init_flags`, passing
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you need to initialise the array using xa_init_flags(), passing
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``XA_FLAGS_LOCK_IRQ`` or ``XA_FLAGS_LOCK_BH``.
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The above example also shows a common pattern of wanting to extend the
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@ -269,20 +269,20 @@ coverage of the xa_lock on the store side to protect some statistics
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associated with the array.
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Sharing the XArray with interrupt context is also possible, either
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using :c:func:`xa_lock_irqsave` in both the interrupt handler and process
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context, or :c:func:`xa_lock_irq` in process context and :c:func:`xa_lock`
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using xa_lock_irqsave() in both the interrupt handler and process
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context, or xa_lock_irq() in process context and xa_lock()
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in the interrupt handler. Some of the more common patterns have helper
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functions such as :c:func:`xa_store_bh`, :c:func:`xa_store_irq`,
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:c:func:`xa_erase_bh`, :c:func:`xa_erase_irq`, :c:func:`xa_cmpxchg_bh`
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and :c:func:`xa_cmpxchg_irq`.
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functions such as xa_store_bh(), xa_store_irq(),
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xa_erase_bh(), xa_erase_irq(), xa_cmpxchg_bh()
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and xa_cmpxchg_irq().
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Sometimes you need to protect access to the XArray with a mutex because
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that lock sits above another mutex in the locking hierarchy. That does
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not entitle you to use functions like :c:func:`__xa_erase` without taking
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not entitle you to use functions like __xa_erase() without taking
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the xa_lock; the xa_lock is used for lockdep validation and will be used
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for other purposes in the future.
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The :c:func:`__xa_set_mark` and :c:func:`__xa_clear_mark` functions are also
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The __xa_set_mark() and __xa_clear_mark() functions are also
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available for situations where you look up an entry and want to atomically
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set or clear a mark. It may be more efficient to use the advanced API
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in this case, as it will save you from walking the tree twice.
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@ -300,27 +300,27 @@ indeed the normal API is implemented in terms of the advanced API. The
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advanced API is only available to modules with a GPL-compatible license.
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The advanced API is based around the xa_state. This is an opaque data
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structure which you declare on the stack using the :c:func:`XA_STATE`
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structure which you declare on the stack using the XA_STATE()
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macro. This macro initialises the xa_state ready to start walking
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around the XArray. It is used as a cursor to maintain the position
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in the XArray and let you compose various operations together without
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having to restart from the top every time.
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The xa_state is also used to store errors. You can call
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:c:func:`xas_error` to retrieve the error. All operations check whether
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xas_error() to retrieve the error. All operations check whether
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the xa_state is in an error state before proceeding, so there's no need
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for you to check for an error after each call; you can make multiple
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calls in succession and only check at a convenient point. The only
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errors currently generated by the XArray code itself are ``ENOMEM`` and
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``EINVAL``, but it supports arbitrary errors in case you want to call
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:c:func:`xas_set_err` yourself.
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xas_set_err() yourself.
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If the xa_state is holding an ``ENOMEM`` error, calling :c:func:`xas_nomem`
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If the xa_state is holding an ``ENOMEM`` error, calling xas_nomem()
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will attempt to allocate more memory using the specified gfp flags and
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cache it in the xa_state for the next attempt. The idea is that you take
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the xa_lock, attempt the operation and drop the lock. The operation
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attempts to allocate memory while holding the lock, but it is more
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likely to fail. Once you have dropped the lock, :c:func:`xas_nomem`
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likely to fail. Once you have dropped the lock, xas_nomem()
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can try harder to allocate more memory. It will return ``true`` if it
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is worth retrying the operation (i.e. that there was a memory error *and*
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more memory was allocated). If it has previously allocated memory, and
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@ -333,7 +333,7 @@ Internal Entries
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The XArray reserves some entries for its own purposes. These are never
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exposed through the normal API, but when using the advanced API, it's
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possible to see them. Usually the best way to handle them is to pass them
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to :c:func:`xas_retry`, and retry the operation if it returns ``true``.
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to xas_retry(), and retry the operation if it returns ``true``.
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.. flat-table::
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:widths: 1 1 6
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@ -343,89 +343,89 @@ to :c:func:`xas_retry`, and retry the operation if it returns ``true``.
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- Usage
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* - Node
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- :c:func:`xa_is_node`
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- xa_is_node()
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- An XArray node. May be visible when using a multi-index xa_state.
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* - Sibling
|
||||
- :c:func:`xa_is_sibling`
|
||||
- xa_is_sibling()
|
||||
- A non-canonical entry for a multi-index entry. The value indicates
|
||||
which slot in this node has the canonical entry.
|
||||
|
||||
* - Retry
|
||||
- :c:func:`xa_is_retry`
|
||||
- xa_is_retry()
|
||||
- This entry is currently being modified by a thread which has the
|
||||
xa_lock. The node containing this entry may be freed at the end
|
||||
of this RCU period. You should restart the lookup from the head
|
||||
of the array.
|
||||
|
||||
* - Zero
|
||||
- :c:func:`xa_is_zero`
|
||||
- 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. This is used by allocating XArrays for allocated entries
|
||||
which are ``NULL``.
|
||||
|
||||
Other internal entries may be added in the future. As far as possible, they
|
||||
will be handled by :c:func:`xas_retry`.
|
||||
will be handled by xas_retry().
|
||||
|
||||
Additional functionality
|
||||
------------------------
|
||||
|
||||
The :c:func:`xas_create_range` function allocates all the necessary memory
|
||||
The xas_create_range() function allocates all the necessary memory
|
||||
to store every entry in a range. It will set ENOMEM in the xa_state if
|
||||
it cannot allocate memory.
|
||||
|
||||
You can use :c:func:`xas_init_marks` to reset the marks on an entry
|
||||
You can use xas_init_marks() to reset the marks on an entry
|
||||
to their default state. This is usually all marks clear, unless the
|
||||
XArray is marked with ``XA_FLAGS_TRACK_FREE``, in which case mark 0 is set
|
||||
and all other marks are clear. Replacing one entry with another using
|
||||
:c:func:`xas_store` will not reset the marks on that entry; if you want
|
||||
xas_store() will not reset the marks on that entry; if you want
|
||||
the marks reset, you should do that explicitly.
|
||||
|
||||
The :c:func:`xas_load` will walk the xa_state as close to the entry
|
||||
The xas_load() will walk the xa_state as close to the entry
|
||||
as it can. If you know the xa_state has already been walked to the
|
||||
entry and need to check that the entry hasn't changed, you can use
|
||||
:c:func:`xas_reload` to save a function call.
|
||||
xas_reload() to save a function call.
|
||||
|
||||
If you need to move to a different index in the XArray, call
|
||||
:c:func:`xas_set`. This resets the cursor to the top of the tree, which
|
||||
xas_set(). This resets the cursor to the top of the tree, which
|
||||
will generally make the next operation walk the cursor to the desired
|
||||
spot in the tree. If you want to move to the next or previous index,
|
||||
call :c:func:`xas_next` or :c:func:`xas_prev`. Setting the index does
|
||||
call xas_next() or xas_prev(). Setting the index does
|
||||
not walk the cursor around the array so does not require a lock to be
|
||||
held, while moving to the next or previous index does.
|
||||
|
||||
You can search for the next present entry using :c:func:`xas_find`. This
|
||||
is the equivalent of both :c:func:`xa_find` and :c:func:`xa_find_after`;
|
||||
You can search for the next present entry using xas_find(). This
|
||||
is the equivalent of both xa_find() and xa_find_after();
|
||||
if the cursor has been walked to an entry, then it will find the next
|
||||
entry after the one currently referenced. If not, it will return the
|
||||
entry at the index of the xa_state. Using :c:func:`xas_next_entry` to
|
||||
move to the next present entry instead of :c:func:`xas_find` will save
|
||||
entry at the index of the xa_state. Using xas_next_entry() to
|
||||
move to the next present entry instead of xas_find() will save
|
||||
a function call in the majority of cases at the expense of emitting more
|
||||
inline code.
|
||||
|
||||
The :c:func:`xas_find_marked` function is similar. If the xa_state has
|
||||
The xas_find_marked() function is similar. If the xa_state has
|
||||
not been walked, it will return the entry at the index of the xa_state,
|
||||
if it is marked. Otherwise, it will return the first marked entry after
|
||||
the entry referenced by the xa_state. The :c:func:`xas_next_marked`
|
||||
function is the equivalent of :c:func:`xas_next_entry`.
|
||||
the entry referenced by the xa_state. The xas_next_marked()
|
||||
function is the equivalent of xas_next_entry().
|
||||
|
||||
When iterating over a range of the XArray using :c:func:`xas_for_each`
|
||||
or :c:func:`xas_for_each_marked`, it may be necessary to temporarily stop
|
||||
the iteration. The :c:func:`xas_pause` function exists for this purpose.
|
||||
When iterating over a range of the XArray using xas_for_each()
|
||||
or xas_for_each_marked(), it may be necessary to temporarily stop
|
||||
the iteration. The xas_pause() function exists for this purpose.
|
||||
After you have done the necessary work and wish to resume, the xa_state
|
||||
is in an appropriate state to continue the iteration after the entry
|
||||
you last processed. If you have interrupts disabled while iterating,
|
||||
then it is good manners to pause the iteration and reenable interrupts
|
||||
every ``XA_CHECK_SCHED`` entries.
|
||||
|
||||
The :c:func:`xas_get_mark`, :c:func:`xas_set_mark` and
|
||||
:c:func:`xas_clear_mark` functions require the xa_state cursor to have
|
||||
The xas_get_mark(), xas_set_mark() and
|
||||
xas_clear_mark() functions require the xa_state cursor to have
|
||||
been moved to the appropriate location in the xarray; they will do
|
||||
nothing if you have called :c:func:`xas_pause` or :c:func:`xas_set`
|
||||
nothing if you have called xas_pause() or xas_set()
|
||||
immediately before.
|
||||
|
||||
You can call :c:func:`xas_set_update` to have a callback function
|
||||
You can call xas_set_update() to have a callback function
|
||||
called each time the XArray updates a node. This is used by the page
|
||||
cache workingset code to maintain its list of nodes which contain only
|
||||
shadow entries.
|
||||
|
|
@ -443,25 +443,25 @@ eg indices 64-127 may be tied together, but 2-6 may not be. This may
|
|||
save substantial quantities of memory; for example tying 512 entries
|
||||
together will save over 4kB.
|
||||
|
||||
You can create a multi-index entry by using :c:func:`XA_STATE_ORDER`
|
||||
or :c:func:`xas_set_order` followed by a call to :c:func:`xas_store`.
|
||||
Calling :c:func:`xas_load` with a multi-index xa_state will walk the
|
||||
You can create a multi-index entry by using XA_STATE_ORDER()
|
||||
or xas_set_order() followed by a call to xas_store().
|
||||
Calling xas_load() with a multi-index xa_state will walk the
|
||||
xa_state to the right location in the tree, but the return value is not
|
||||
meaningful, potentially being an internal entry or ``NULL`` even when there
|
||||
is an entry stored within the range. Calling :c:func:`xas_find_conflict`
|
||||
is an entry stored within the range. Calling xas_find_conflict()
|
||||
will return the first entry within the range or ``NULL`` if there are no
|
||||
entries in the range. The :c:func:`xas_for_each_conflict` iterator will
|
||||
entries in the range. The xas_for_each_conflict() iterator will
|
||||
iterate over every entry which overlaps the specified range.
|
||||
|
||||
If :c:func:`xas_load` encounters a multi-index entry, the xa_index
|
||||
If xas_load() encounters a multi-index entry, the xa_index
|
||||
in the xa_state will not be changed. When iterating over an XArray
|
||||
or calling :c:func:`xas_find`, if the initial index is in the middle
|
||||
or calling xas_find(), if the initial index is in the middle
|
||||
of a multi-index entry, it will not be altered. Subsequent calls
|
||||
or iterations will move the index to the first index in the range.
|
||||
Each entry will only be returned once, no matter how many indices it
|
||||
occupies.
|
||||
|
||||
Using :c:func:`xas_next` or :c:func:`xas_prev` with a multi-index xa_state
|
||||
Using xas_next() or xas_prev() with a multi-index xa_state
|
||||
is not supported. Using either of these functions on a multi-index entry
|
||||
will reveal sibling entries; these should be skipped over by the caller.
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue