函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\slab.h Create Date:2022-07-27 15:27:23
Last Modify:2022-05-23 16:25:42 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：slab_pre_alloc_hook

函数原型：static inline struct kmem_cache *slab_pre_alloc_hook(struct kmem_cache *s, gfp_t flags)

返回类型：struct kmem_cache

参数：

类型参数名称
struct kmem_cache *s
gfp_tflags
560  flags与等于gfp_allowed_mask is set to GFP_BOOT_MASK during early boot to restrict what* GFP flags are used before interrupts are enabled
562  fs_reclaim_acquire(flags)
563  fs_reclaim_release(flags)
565  might_sleep_if(gfpflags_allow_blocking(flags))
567  如果should_failslab(s, flags)则返回:NULL
570  如果memcg_kmem_enabled()且flags按位与__GFP_ACCOUNT或Used for retrieving partial slabs, etc. 按位与SLAB_ACCOUNT的值则返回:memcg_kmem_get_cache(s)
574  返回:s
调用者
名称描述
slab_alloc_node
slab_alloc
kmem_cache_alloc_bulk
slab_alloc_nodeInlined fastpath so that allocation functions (kmalloc, kmem_cache_alloc)* have the fastpath folded into their functions. So no function call* overhead for requests that can be satisfied on the fastpath.
kmem_cache_alloc_bulkNote that interrupts must be enabled when calling this function.