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Commit 9d12d29a authored by Prakash Gupta's avatar Prakash Gupta
Browse files

taskstats: remove redundant MM_STAT config check 



Userspace does not have access to MM_STAT configs, so remove redundant
config checks.

Change-Id: I0ec0807a1e62bd5932f01ed285f2175f27900e37
Signed-off-by: default avatarPrakash Gupta <guptap@codeaurora.org>
parent bbc7f2d3

include/uapi/linux/sysstats.h

+1 −3
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */

/*

 * Copyright (c) 2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.

 */



#ifndef _LINUX_SYSSTATS_H
@@ -25,9 +25,7 @@ struct sys_memstats { 
	__u64	zram_compressed;

	__u64	swap_used;

	__u64	swap_total;

#ifdef CONFIG_MM_STAT_UNRECLAIMABLE_PAGES

	__u64	unreclaimable;

#endif

	__u64	buffer;

	__u64	slab_reclaimable;

	__u64	slab_unreclaimable;

include/uapi/linux/taskstats.h

+0 −2
Original line number Diff line number Diff line
@@ -179,9 +179,7 @@ struct taskstats2 { 
	__u64 file_rss;	/* KB */

	__u64 swap_rss;	/* KB */

	__u64 shmem_rss;	/* KB */

#ifdef CONFIG_MM_STAT_UNRECLAIMABLE_PAGES

	__u64 unreclaimable;	/* KB */

#endif

	/* version 1 ends here */

};

kernel/taskstats.c

+4 −0
Original line number Diff line number Diff line
@@ -489,6 +489,8 @@ static void sysstats_build(struct sys_memstats *stats) 
#ifdef CONFIG_MM_STAT_UNRECLAIMABLE_PAGES

	stats->unreclaimable =

		K(global_node_page_state(NR_UNRECLAIMABLE_PAGES));

#else

	stats->unreclaimable = 0;

#endif

	stats->buffer = K(i.bufferram);

	stats->swapcache = K(total_swapcache_pages());
@@ -682,6 +684,8 @@ static int taskstats2_cmd_attr_pid(struct genl_info *info) 
#ifdef CONFIG_MM_STAT_UNRECLAIMABLE_PAGES

		stats->unreclaimable =

				K(get_mm_counter(p->mm, MM_UNRECLAIMABLE));

#else

		stats->unreclaimable = 0;

#endif

#undef K

		task_unlock(p);