mem_cgroup_shrink_node

Name:Only used by soft limit reclaim. Do not reuse for anything else.

Proto:unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, gfp_t gfp_mask, bool noswap, pg_data_t *pgdat, unsigned long *nr_scanned)

Type:unsigned long

Parameter:

Type	Parameter	Name
struct mem_cgroup *	memcg
gfp_t	gfp_mask
bool	noswap
pg_data_t *	pgdat
unsigned long *	nr_scanned

3307

lruvec = mem_cgroup_lruvec - get the lru list vector for a memcg & node*@memcg: memcg of the wanted lruvec* Returns the lru list vector holding pages for a given @memcg &*@node combination. This can be the node lruvec, if the memory* controller is disabled.

3308

struct scan_control sc = { How many pages shrink_list() should reclaim = SWAP_CLUSTER_MAX, * The memory cgroup that hit its limit and as a result is the * primary target of this reclaim invocation. = memcg, Writepage batching in laptop mode; RECLAIM_WRITE = !Flag that puts the machine in "laptop mode". Doubles as a timeout in jiffies:* a full sync is triggered after this time elapses without any disk activity., Can mapped pages be reclaimed? = 1, The highest zone to isolate pages for reclaim from = MAX_NR_ZONES - 1, Can pages be swapped as part of reclaim? = !noswap, }

3317

WARN_ON_ONCE(!reclaim_state)

3319

This context's GFP mask = gfp_mask & The set of flags that only affect watermark checking and reclaim* behaviour. This is used by the MM to obey the caller constraints* about IO, FS and watermark checking while ignoring placement* hints such as HIGHMEM usage. | GFP_HIGHUSER_MOVABLE & ~The set of flags that only affect watermark checking and reclaim* behaviour. This is used by the MM to obey the caller constraints* about IO, FS and watermark checking while ignoring placement* hints such as HIGHMEM usage.

3322

trace_mm_vmscan_memcg_softlimit_reclaim_begin( Allocation order , This context's GFP mask )

3332

shrink_lruvec(lruvec, & sc)

3334

trace_mm_vmscan_memcg_softlimit_reclaim_end( Number of pages freed so far during a call to shrink_zones() )

3336

nr_scanned = Incremented by the number of inactive pages that were scanned

3338

Return Number of pages freed so far during a call to shrink_zones()

**Caller**
Name	Describe
mem_cgroup_soft_reclaim

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion