Messages in this thread | | | Subject | Re: [f2fs-dev] [PATCH v2] f2fs: add bug_on when f2fs_gc even fails to get one victim | From | Yunlong Song <> | Date | Sat, 14 Oct 2017 20:34:43 +0800 |
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Do you mean check out-of-space test? I have tried that but no bugon.
On 2017/10/14 8:17, Chao Yu wrote: > On 2017/10/13 21:31, Yunlong Song wrote: >> This can help us to debug on some corner case. > I can hit this bugon with generic/015 of fstest easily, could have a look at > this? > > Thanks, > >> Signed-off-by: Yunlong Song <yunlong.song@huawei.com> >> Signed-off-by: Chao Yu <yuchao0@huawei.com> >> --- >> fs/f2fs/gc.c | 6 +++++- >> 1 file changed, 5 insertions(+), 1 deletion(-) >> >> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c >> index 197ebf4..2b03202 100644 >> --- a/fs/f2fs/gc.c >> +++ b/fs/f2fs/gc.c >> @@ -986,6 +986,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, >> .ilist = LIST_HEAD_INIT(gc_list.ilist), >> .iroot = RADIX_TREE_INIT(GFP_NOFS), >> }; >> + bool need_fggc = false; >> >> trace_f2fs_gc_begin(sbi->sb, sync, background, >> get_pages(sbi, F2FS_DIRTY_NODES), >> @@ -1018,8 +1019,10 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, >> if (ret) >> goto stop; >> } >> - if (has_not_enough_free_secs(sbi, 0, 0)) >> + if (has_not_enough_free_secs(sbi, 0, 0)) { >> gc_type = FG_GC; >> + need_fggc = true; >> + } >> } >> >> /* f2fs_balance_fs doesn't need to do BG_GC in critical path. */ >> @@ -1028,6 +1031,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, >> goto stop; >> } >> if (!__get_victim(sbi, &segno, gc_type)) { >> + f2fs_bug_on(sbi, !total_freed && need_fggc); >> ret = -ENODATA; >> goto stop; >> } >> > . >
-- Thanks, Yunlong Song
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