- bool ret = s.reserved <= s.remaining &&
- fifo_free(&j->pin) > 8;
-
- lockdep_assert_held(&j->lock);
-
- if (ret != test_bit(JOURNAL_MAY_GET_UNRESERVED, &j->flags)) {
- if (ret) {
- set_bit(JOURNAL_MAY_GET_UNRESERVED, &j->flags);
- journal_wake(j);
- } else {
- clear_bit(JOURNAL_MAY_GET_UNRESERVED, &j->flags);
- }
- }
- return ret;
+ unsigned watermark = BCH_WATERMARK_stripe;
+
+ if (fifo_free(&j->pin) < j->pin.size / 4)
+ watermark = max_t(unsigned, watermark, BCH_WATERMARK_copygc);
+ if (fifo_free(&j->pin) < j->pin.size / 8)
+ watermark = max_t(unsigned, watermark, BCH_WATERMARK_reclaim);
+
+ if (s.reserved > s.remaining)
+ watermark = max_t(unsigned, watermark, BCH_WATERMARK_copygc);
+ if (!s.remaining)
+ watermark = max_t(unsigned, watermark, BCH_WATERMARK_reclaim);
+
+ if (watermark == j->watermark)
+ return;
+
+ swap(watermark, j->watermark);
+ if (watermark > j->watermark)
+ journal_wake(j);