From 6e17bfbc75a5cb9c363ba488bf57cd0152bc3ec0 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Sat, 23 Jan 2016 22:00:57 +0800 Subject: [PATCH] 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 #3, and trigger gc as well. Signed-off-by: Jaegeuk Kim --- fs/f2fs/gc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index f610c2a9bdde..4a704a16bf17 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -838,8 +838,15 @@ 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)) -- 2.45.2