Merge tag 'block-5.15-2021-10-17' of git://git.kernel.dk/linux-block

[platform/kernel/linux-rpi.git] / net / smc / smc_wr.h

diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 423b870..2bc626f 100644 (file)
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -60,6 +60,20 @@ static inline void smc_wr_tx_set_wr_id(atomic_long_t *wr_tx_id, long val)
        atomic_long_set(wr_tx_id, val);
 }
 
+static inline bool smc_wr_tx_link_hold(struct smc_link *link)
+{
+       if (!smc_link_usable(link))
+               return false;
+       atomic_inc(&link->wr_tx_refcnt);
+       return true;
+}
+
+static inline void smc_wr_tx_link_put(struct smc_link *link)
+{
+       if (atomic_dec_and_test(&link->wr_tx_refcnt))
+               wake_up_all(&link->wr_tx_wait);
+}
+
 static inline void smc_wr_wakeup_tx_wait(struct smc_link *lnk)
 {
        wake_up_all(&lnk->wr_tx_wait);