f2fs: fix to overcome inline_data floods

The scenario is: 1. create lots of node blocks 2. sync 3. write lots of inline_data -> got panic due to no free space In that case, we should flush node blocks when writing inline_data in armani-dev#3, and trigger gc as well. Signed-off-by: Jaegeuk Kim <[email protected]>
hemantbeast · May 6, 2018 · 66061f5 · 66061f5
1 parent ace9a20
commit 66061f5
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
@@ -835,8 +835,15 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync)
 
 	if (gc_type == BG_GC && has_not_enough_free_secs(sbi, sec_freed)) {
 		gc_type = FG_GC;
+		/*
+		 * If there is no victim and no prefree segment but still not
+		 * enough free sections, we should flush dent/node blocks and do
+		 * garbage collections.
+		 */
 		if (__get_victim(sbi, &segno, gc_type) || prefree_segments(sbi))
 			write_checkpoint(sbi, &cpc);
+		else if (has_not_enough_free_secs(sbi, 0))
+			write_checkpoint(sbi, &cpc);
 	}
 
 	if (segno == NULL_SEGNO && !__get_victim(sbi, &segno, gc_type))