Messages in this thread | | | Subject | Re: [PATCH v2] f2fs: collect prefree segments to avoild write checkpoint fail | From | Yunlong Song <> | Date | Tue, 31 Oct 2017 09:33:54 +0800 |
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ping...
On 2017/9/1 20:00, Yunlong Song wrote: > In come corner case, the reserved segments are used to do gc, and there are > not enough free segments for write checkpoint to finish its job, then the > gc process will fail to change the prefree segments to free segments. > > Signed-off-by: Yunlong Song <yunlong.song@huawei.com> > --- > fs/f2fs/gc.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c > index cd147e7..6552b04 100644 > --- a/fs/f2fs/gc.c > +++ b/fs/f2fs/gc.c > @@ -1056,6 +1056,16 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, > if (!sync) { > if (has_not_enough_free_secs(sbi, sec_freed, 0)) { > segno = NULL_SEGNO; > +#ifndef CONFIG_F2FS_CHECK_FS > + if (prefree_segments(sbi) && > + has_not_enough_free_secs(sbi, > + reserved_sections(sbi), 0)) { > + ret = write_checkpoint(sbi, &cpc); > + if (ret) > + goto stop; > + sec_freed = 0; > + } > +#endif > goto gc_more; > } >
-- Thanks, Yunlong Song
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