[PATCH] f2fs: fix to correct freed section number during gc

From: Chao Yu
Date: Tue Sep 22 2015 - 09:19:07 EST


We pass 'nfree' to has_not_enough_free_secs to check whether there is
enough free section, but 'nfree' indicates the number of segment gced,
should alter the value to section number.

Signed-off-by: Chao Yu <chao2.yu@xxxxxxxxxxx>
---
fs/f2fs/gc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e932740..7ad2a60 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -817,7 +817,8 @@ gc_more:
if (unlikely(f2fs_cp_error(sbi)))
goto stop;

- if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
+ if (gc_type == BG_GC &&
+ has_not_enough_free_secs(sbi, nfree / sbi->segs_per_sec)) {
gc_type = FG_GC;
if (__get_victim(sbi, &segno, gc_type) || prefree_segments(sbi))
write_checkpoint(sbi, &cpc);
@@ -839,7 +840,7 @@ gc_more:
if (gc_type == FG_GC)
sbi->cur_victim_sec = NULL_SEGNO;

- if (has_not_enough_free_secs(sbi, nfree))
+ if (has_not_enough_free_secs(sbi, nfree / sbi->segs_per_sec))
goto gc_more;

if (gc_type == FG_GC)
--
2.5.2


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