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path: root/drivers/lightnvm/pblk-gc.c
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Diffstat (limited to 'drivers/lightnvm/pblk-gc.c')
-rw-r--r--drivers/lightnvm/pblk-gc.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index 2fa118c8eb71..26a52ea7ec45 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -365,16 +365,22 @@ static struct pblk_line *pblk_gc_get_victim_line(struct pblk *pblk,
struct list_head *group_list)
{
struct pblk_line *line, *victim;
- int line_vsc, victim_vsc;
+ unsigned int line_vsc = ~0x0L, victim_vsc = ~0x0L;
victim = list_first_entry(group_list, struct pblk_line, list);
+
list_for_each_entry(line, group_list, list) {
- line_vsc = le32_to_cpu(*line->vsc);
- victim_vsc = le32_to_cpu(*victim->vsc);
- if (line_vsc < victim_vsc)
+ if (!atomic_read(&line->sec_to_update))
+ line_vsc = le32_to_cpu(*line->vsc);
+ if (line_vsc < victim_vsc) {
victim = line;
+ victim_vsc = le32_to_cpu(*victim->vsc);
+ }
}
+ if (victim_vsc == ~0x0)
+ return NULL;
+
return victim;
}
@@ -448,13 +454,13 @@ next_gc_group:
do {
spin_lock(&l_mg->gc_lock);
- if (list_empty(group_list)) {
+
+ line = pblk_gc_get_victim_line(pblk, group_list);
+ if (!line) {
spin_unlock(&l_mg->gc_lock);
break;
}
- line = pblk_gc_get_victim_line(pblk, group_list);
-
spin_lock(&line->lock);
WARN_ON(line->state != PBLK_LINESTATE_CLOSED);
line->state = PBLK_LINESTATE_GC;