Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\slub.c Create Date:2022-07-28 15:47:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:stat

Proto:static inline void stat(const struct kmem_cache *s, enum stat_item si)

Type:void

Parameter:

TypeParameterName
const struct kmem_cache *s
enum stat_itemsi

NULL

Caller
NameDescribe
__cmpxchg_double_slabInterrupts must be disabled (for the fallback code to work right)
cmpxchg_double_slab
allocate_slab
get_partial_nodeTry to allocate a partial slab from a specific node.
note_cmpxchg_failure
deactivate_slabRemove the cpu slab
flush_slab
new_slab_objects
___slab_allocSlow path. The lockless freelist is empty or we need to perform* debugging duties.* Processing is still very fast if new objects have been freed to the* regular freelist. In that case we simply take over the regular freelist
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.
__slab_freeSlow path handling. This may still be called frequently since objects* have a longer lifetime than the cpu slabs in most processing loads.* So we still attempt to reduce cache line usage. Just take the slab* lock and free the item
do_slab_freeFastpath with forced inlining to produce a kfree and kmem_cache_free that* can perform fastpath freeing without additional function calls.* The fastpath is only possible if we are freeing to the current cpu slab* of this processor