The sysctl_compact_memory is mostly unsed in mm/compaction.c It just acts as a place holder for sysctl.
Thus we can remove it from here and move the declaration directly in kernel/sysctl.c itself. This will also eliminate the extern declaration from header file. No functionality is broken or changed this way. Signed-off-by: Pintu Kumar <[email protected]> Signed-off-by: Pintu Agarwal <[email protected]> --- include/linux/compaction.h | 1 - kernel/sysctl.c | 1 + mm/compaction.c | 3 --- 3 files changed, 1 insertion(+), 4 deletions(-) diff --git a/include/linux/compaction.h b/include/linux/compaction.h index ed4070e..4221888 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -81,7 +81,6 @@ static inline unsigned long compact_gap(unsigned int order) } #ifdef CONFIG_COMPACTION -extern int sysctl_compact_memory; extern unsigned int sysctl_compaction_proactiveness; extern int sysctl_compaction_handler(struct ctl_table *table, int write, void *buffer, size_t *length, loff_t *ppos); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index c9fbdd8..66aff21 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -198,6 +198,7 @@ static int max_sched_tunable_scaling = SCHED_TUNABLESCALING_END-1; #ifdef CONFIG_COMPACTION static int min_extfrag_threshold; static int max_extfrag_threshold = 1000; +static int sysctl_compact_memory; #endif #endif /* CONFIG_SYSCTL */ diff --git a/mm/compaction.c b/mm/compaction.c index 190ccda..ede2886 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2650,9 +2650,6 @@ static void compact_nodes(void) compact_node(nid); } -/* The written value is actually unused, all memory is compacted */ -int sysctl_compact_memory; - /* * Tunable for proactive compaction. It determines how * aggressively the kernel should compact memory in the -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
