1 files changed, 17 insertions, 9 deletions

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 943a31db7cc3..2a8f4acdb86b 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -193,7 +193,7 @@ static unsigned int check_bg_victims(struct f2fs_sb_info *sbi)
 	 * selected by background GC before.
 	 * Those segments guarantee they have small valid blocks.
 	 */
-	for_each_set_bit(secno, dirty_i->victim_secmap, TOTAL_SECS(sbi)) {
+	for_each_set_bit(secno, dirty_i->victim_secmap, MAIN_SECS(sbi)) {
 		if (sec_usage_check(sbi, secno))
 			continue;
 		clear_bit(secno, dirty_i->victim_secmap);
@@ -263,14 +263,14 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
 	unsigned int secno, max_cost;
 	int nsearched = 0;
 
+	mutex_lock(&dirty_i->seglist_lock);
+
 	p.alloc_mode = alloc_mode;
 	select_policy(sbi, gc_type, type, &p);
 
 	p.min_segno = NULL_SEGNO;
 	p.min_cost = max_cost = get_max_cost(sbi, &p);
 
-	mutex_lock(&dirty_i->seglist_lock);
-
 	if (p.alloc_mode == LFS && gc_type == FG_GC) {
 		p.min_segno = check_bg_victims(sbi);
 		if (p.min_segno != NULL_SEGNO)
@@ -281,9 +281,8 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
 		unsigned long cost;
 		unsigned int segno;
 
-		segno = find_next_bit(p.dirty_segmap,
-						TOTAL_SEGS(sbi), p.offset);
-		if (segno >= TOTAL_SEGS(sbi)) {
+		segno = find_next_bit(p.dirty_segmap, MAIN_SEGS(sbi), p.offset);
+		if (segno >= MAIN_SEGS(sbi)) {
 			if (sbi->last_victim[p.gc_mode]) {
 				sbi->last_victim[p.gc_mode] = 0;
 				p.offset = 0;
@@ -423,6 +422,12 @@ next_step:
 		if (IS_ERR(node_page))
 			continue;
 
+		/* block may become invalid during get_node_page */
+		if (check_valid_map(sbi, segno, off) == 0) {
+			f2fs_put_page(node_page, 1);
+			continue;
+		}
+
 		/* set page dirty and write it */
 		if (gc_type == FG_GC) {
 			f2fs_wait_on_page_writeback(node_page, NODE);
@@ -531,7 +536,7 @@ static void move_data_page(struct inode *inode, struct page *page, int gc_type)
 		f2fs_wait_on_page_writeback(page, DATA);
 
 		if (clear_page_dirty_for_io(page))
-			inode_dec_dirty_dents(inode);
+			inode_dec_dirty_pages(inode);
 		set_cold_data(page);
 		do_write_data_page(page, &fio);
 		clear_cold_data(page);
@@ -688,6 +693,9 @@ int f2fs_gc(struct f2fs_sb_info *sbi)
 	int gc_type = BG_GC;
 	int nfree = 0;
 	int ret = -1;
+	struct cp_control cpc = {
+		.reason = CP_SYNC,
+	};
 
 	INIT_LIST_HEAD(&ilist);
 gc_more:
@@ -698,7 +706,7 @@ gc_more:
 
 	if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
 		gc_type = FG_GC;
-		write_checkpoint(sbi, false);
+		write_checkpoint(sbi, &cpc);
 	}
 
 	if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
@@ -723,7 +731,7 @@ gc_more:
 		goto gc_more;
 
 	if (gc_type == FG_GC)
-		write_checkpoint(sbi, false);
+		write_checkpoint(sbi, &cpc);
 stop:
 	mutex_unlock(&sbi->gc_mutex);