Commit 61241b59 authored by Xu Qiang's avatar Xu Qiang Committed by Zhong Jinghua
Browse files

mm/sharepool: Delete redundant tgid in sp_proc_stat. 

hulk inclusion
category: other
bugzilla: https://gitee.com/openeuler/kernel/issues/I6ET9W



----------------------------------------------

The tgid information is also stored in sp_group_master.

Signed-off-by: default avatarXu Qiang <xuqiang36@huawei.com>
parent ef680bf9

mm/share_pool.c

+6 −8
Original line number Diff line number Diff line
@@ -123,7 +123,6 @@ struct sp_meminfo { 
#ifndef __GENKSYMS__

/* per process memory usage statistics indexed by tgid */

struct sp_proc_stat {

	int tgid;

	char comm[TASK_COMM_LEN];

	/*

	 * alloc amount minus free amount, may be negative when freed by
@@ -312,13 +311,12 @@ static void meminfo_dec_k2u(unsigned long size, struct sp_meminfo *meminfo) 
}



/* The caller should hold mmap_sem to protect master (TBD) */

static void sp_init_group_master_stat(int tgid, struct mm_struct *mm,

static void sp_init_group_master_stat(struct mm_struct *mm,

		struct sp_proc_stat *stat)

{

	atomic64_set(&stat->alloc_nsize, 0);

	atomic64_set(&stat->alloc_hsize, 0);

	atomic64_set(&stat->k2u_size, 0);

	stat->tgid = tgid;

	get_task_comm(stat->comm, current);

}
@@ -586,7 +584,7 @@ static int sp_init_group_master_locked(struct task_struct *tsk, struct mm_struct 
	master->count = 0;

	master->mm = mm;

	master->tgid = tsk->tgid;

	sp_init_group_master_stat(tsk->tgid, mm, &master->instat);

	sp_init_group_master_stat(mm, &master->instat);

	mm->sp_group_master = master;

	sp_add_group_master(master);
@@ -3771,7 +3769,7 @@ int proc_sp_group_state(struct seq_file *m, struct pid_namespace *ns, 
		   "PID", "COMM", "SP_ALLOC", "SP_K2U", "SP_RES", "Non-SP_RES",

		   "Non-SP_Shm", "VIRT");

	seq_printf(m, "%-8d %-16s %-9ld %-9ld %-9ld %-10ld %-10ld %-8ld\n",

		   proc_stat->tgid, proc_stat->comm,

		   master->tgid, proc_stat->comm,

		   get_proc_alloc(proc_stat),

		   get_proc_k2u(proc_stat),

		   sp_res, non_sp_res, non_sp_shm,
@@ -3985,7 +3983,7 @@ static int proc_usage_by_group(int id, void *p, void *data) 
	list_for_each_entry(spg_node, &spg->procs, proc_node) {

		master = spg_node->master;

		mm = master->mm;

		tgid = master->instat.tgid;

		tgid = master->tgid;



		get_mm_rss_info(mm, &anon, &file, &shmem, &total_rss);
@@ -4054,7 +4052,7 @@ static int proc_usage_show(struct seq_file *seq, void *offset) 
		get_process_non_sp_res(total_rss, shmem, sp_res_nsize,

				&non_sp_res, &non_sp_shm);

		seq_printf(seq, "%-8d %-16s %-9ld %-9ld %-9ld %-10ld %-10ld %-8ld\n",

				proc_stat->tgid, proc_stat->comm,

				master->tgid, proc_stat->comm,

				get_proc_alloc(proc_stat),

				get_proc_k2u(proc_stat),

				sp_res, non_sp_res, non_sp_shm,
@@ -4285,7 +4283,7 @@ void sp_group_post_exit(struct mm_struct *mm) 


		if (alloc_size != 0 || k2u_size != 0)

			pr_info("process %s(%d) exits. It applied %ld aligned KB, k2u shared %ld aligned KB\n",

				stat->comm, stat->tgid,

				stat->comm, master->tgid,

				byte2kb(alloc_size), byte2kb(k2u_size));

	}