diff options
Diffstat (limited to 'drivers/lightnvm/pblk-gc.c')
| -rw-r--r-- | drivers/lightnvm/pblk-gc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c index b8323e34d1bc..00d5698d64a9 100644 --- a/drivers/lightnvm/pblk-gc.c +++ b/drivers/lightnvm/pblk-gc.c @@ -218,7 +218,13 @@ next_rq: gc_rq_ws->line = line; gc_rq_ws->priv = gc_rq; - down(&gc->gc_sem); + /* The write GC path can be much slower than the read GC one due to + * the budget imposed by the rate-limiter. Balance in case that we get + * back pressure from the write GC path. + */ + while (down_timeout(&gc->gc_sem, msecs_to_jiffies(30000))) + io_schedule(); + kref_get(&line->ref); INIT_WORK(&gc_rq_ws->ws, pblk_gc_line_ws); |