Messages in this thread Patch in this message | | | From | Jaegeuk Kim <> | Subject | [PATCH 2/2] f2fs: fix to overcome inline_data floods | Date | Sat, 23 Jan 2016 12:15:48 -0800 |
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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 <jaegeuk@kernel.org> --- fs/f2fs/gc.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 0204433..8686231 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -838,8 +838,15 @@ gc_more: 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)) -- 2.6.3
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