diff --git a/include/linux/xarray.h b/include/linux/xarray.h index 8e59d4fbd55e1503036bf00e44334b0ce1e123fe..4c839c17a99be7d416380a9ff8939d7f9f5c10b3 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -289,6 +289,7 @@ struct xarray { void xa_init_flags(struct xarray *, gfp_t flags); void *xa_load(struct xarray *, unsigned long index); void *xa_store(struct xarray *, unsigned long index, void *entry, gfp_t); +void *xa_erase(struct xarray *, unsigned long index); void *xa_store_range(struct xarray *, unsigned long first, unsigned long last, void *entry, gfp_t); bool xa_get_mark(struct xarray *, unsigned long index, xa_mark_t); @@ -340,23 +341,6 @@ static inline bool xa_marked(const struct xarray *xa, xa_mark_t mark) return xa->xa_flags & XA_FLAGS_MARK(mark); } -/** - * xa_erase() - Erase this entry from the XArray. - * @xa: XArray. - * @index: Index of entry. - * - * This function is the equivalent of calling xa_store() with %NULL as - * the third argument. The XArray does not need to allocate memory, so - * the user does not need to provide GFP flags. - * - * Context: Process context. Takes and releases the xa_lock. - * Return: The entry which used to be at this index. - */ -static inline void *xa_erase(struct xarray *xa, unsigned long index) -{ - return xa_store(xa, index, NULL, 0); -} - /** * xa_for_each() - Iterate over a portion of an XArray. * @xa: XArray. diff --git a/lib/xarray.c b/lib/xarray.c index 77671d4a7910193683b513f636fe172f3827d84b..b55aa8c1c20fde5ae55bd9dd9de4c202c13cf1ec 100644 --- a/lib/xarray.c +++ b/lib/xarray.c @@ -1336,6 +1336,30 @@ void *__xa_erase(struct xarray *xa, unsigned long index) } EXPORT_SYMBOL(__xa_erase); +/** + * xa_erase() - Erase this entry from the XArray. + * @xa: XArray. + * @index: Index of entry. + * + * This function is the equivalent of calling xa_store() with %NULL as + * the third argument. The XArray does not need to allocate memory, so + * the user does not need to provide GFP flags. + * + * Context: Any context. Takes and releases the xa_lock. + * Return: The entry which used to be at this index. + */ +void *xa_erase(struct xarray *xa, unsigned long index) +{ + void *entry; + + xa_lock(xa); + entry = __xa_erase(xa, index); + xa_unlock(xa); + + return entry; +} +EXPORT_SYMBOL(xa_erase); + /** * xa_store() - Store this entry in the XArray. * @xa: XArray.