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Commit b27bc809 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: do gc in greedy mode for whole range if gc_urgent mode is set



Otherwise, f2fs conducts GC on 8GB range only based on slow cost-benefit.

Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent dee02f0d
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+9 −2
Original line number Diff line number Diff line
@@ -162,12 +162,17 @@ static int select_gc_type(struct f2fs_gc_kthread *gc_th, int gc_type)
{
	int gc_mode = (gc_type == BG_GC) ? GC_CB : GC_GREEDY;

	if (gc_th && gc_th->gc_idle) {
	if (!gc_th)
		return gc_mode;

	if (gc_th->gc_idle) {
		if (gc_th->gc_idle == 1)
			gc_mode = GC_CB;
		else if (gc_th->gc_idle == 2)
			gc_mode = GC_GREEDY;
	}
	if (gc_th->gc_urgent)
		gc_mode = GC_GREEDY;
	return gc_mode;
}

@@ -189,7 +194,9 @@ static void select_policy(struct f2fs_sb_info *sbi, int gc_type,
	}

	/* we need to check every dirty segments in the FG_GC case */
	if (gc_type != FG_GC && p->max_search > sbi->max_victim_search)
	if (gc_type != FG_GC &&
			(sbi->gc_thread && !sbi->gc_thread->gc_urgent) &&
			p->max_search > sbi->max_victim_search)
		p->max_search = sbi->max_victim_search;

	/* let's select beginning hot/small space first in no_heap mode*/