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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 <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-01-23 22:00:57 +08:00
parent 25c1355151
commit 6e17bfbc75
1 changed files with 7 additions and 0 deletions
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7
fs/f2fs/gc.c
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@ -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))