linux-4.4.1/devres_alloc_node() の履歴(No.1)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• linux-4.4.1/devres_alloc_node() へ行く。
  • 1 (2016-03-16 (水) 11:51:10)
  • 2 (2016-03-16 (水) 11:52:57)

参照元†

• linux-4.4.1/devres_alloc()

説明†

• パス: [[linux-4.4.1/]]

• FIXME: これは何？
  • 説明

引数†

• dr_release_t release
  • linux-4.4.1/dr_release_t
• size_t size
• gfp_t gfp
  • linux-4.4.1/gfp_t
• int nid

返り値†

• void *

参考†

実装†

CONFIG_DEBUG_DEVRES 有効: include/linux/device.h†

#define devres_alloc_node(release, size, gfp, nid) \
        __devres_alloc_node(release, size, gfp, nid, #release)

• • linux-4.4.1/__devres_alloc_node()

CONFIG_DEBUG_DEVRES 無効: drivers/base/devres.c†

/**
 * devres_alloc - Allocate device resource data
 * @release: Release function devres will be associated with
 * @size: Allocation size
 * @gfp: Allocation flags
 * @nid: NUMA node
 *
 * Allocate devres of @size bytes.  The allocated area is zeroed, then
 * associated with @release.  The returned pointer can be passed to
 * other devres_*() functions.
 *
 * RETURNS:
 * Pointer to allocated devres on success, NULL on failure.
 */
void * devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp, int nid)
{
        struct devres *dr;

• • linux-4.4.1/devres

        dr = alloc_dr(release, size, gfp | __GFP_ZERO, nid);
        if (unlikely(!dr))
                return NULL;

• • linux-4.4.1/alloc_dr()
  • linux-4.4.1/unlikely()

        return dr->data;
}
EXPORT_SYMBOL_GPL(devres_alloc_node);

• • linux-4.4.1/EXPORT_SYMBOL_GPL()

コメント†