Lines Matching full:variable

11  * DOC: Shadow variable API concurrency notes:
13  * The shadow variable API provides a simple relationship between an
17  * Once a shadow variable is attached to its parent object via the
19  * call to klp_shadow_get() may then return the shadow variable's data
24  * variable structures.  Their implementation does not call kmalloc
47  * struct klp_shadow - shadow variable structure
63  * klp_shadow_match() - verify a shadow variable matches given <obj, id>
64  * @shadow:	shadow variable to match
68  * Return: true if the shadow variable matches.
77  * klp_shadow_get() - retrieve a shadow variable data pointer
81  * Return: the shadow variable data element, NULL on failure.
113 	/* Check if the shadow variable already exists */  in __klp_shadow_get_or_alloc()
119 	 * Allocate a new shadow variable.  Fill it with zeroes by default.  in __klp_shadow_get_or_alloc()
132 		 * Shadow variable was found, throw away speculative  in __klp_shadow_get_or_alloc()
150 			pr_err("Failed to construct shadow variable <%p, %lx> (%d)\n",  in __klp_shadow_get_or_alloc()
165 		WARN(1, "Duplicate shadow variable <%p, %lx>\n", obj, id);  in __klp_shadow_get_or_alloc()
173  * klp_shadow_alloc() - allocate and add a new shadow variable
181  * Allocates @size bytes for new shadow variable data using @gfp_flags.
183  * function if it is not NULL.  The new shadow variable is then added
186  * If an existing <obj, id> shadow variable can be found, this routine will
190  * the variable did not exist before.  The cost is that @ctor is called
193  * Return: the shadow variable data element, NULL on duplicate or
206  * klp_shadow_get_or_alloc() - get existing or allocate a new shadow variable
215  * variable is already present.  Otherwise, it creates a new shadow
216  * variable like klp_shadow_alloc().
218  * This function guarantees that only one shadow variable exists with the given
220  * will be called only when the variable did not exist before.  The cost is
223  * Return: the shadow variable data element, NULL on failure.
244  * klp_shadow_free() - detach and free a <obj, id> shadow variable
247  * @dtor:	custom callback that can be used to unregister the variable
248  *		and/or free data that the shadow variable points to (optional)
250  * This function releases the memory for this <obj, id> shadow variable
277  * @dtor:	custom callback that can be used to unregister the variable
278  *		and/or free data that the shadow variable points to (optional)
280  * This function releases the memory for all <_, id> shadow variable