linux-kernel - [patch V2 16/36] net: sfc: Use GFP_KERNEL in efx_ef10_try_update_nic

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Message-Id: <20200929203501.078203643@linutronix.de>
Date:   Tue, 29 Sep 2020 22:25:25 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Paul McKenney <paulmck@...nel.org>,
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        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
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Subject: [patch V2 16/36] net: sfc: Use GFP_KERNEL in efx_ef10_try_update_nic_stats()

From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

efx_ef10_try_update_nic_stats_vf() is now only invoked from thread context
and can sleep after efx::stats_lock is dropped.

Change the allocation mode from GFP_ATOMIC to GFP_KERNEL.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
V2: Adjust to Edward's stats update split
---
 drivers/net/ethernet/sfc/ef10.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -1873,7 +1873,7 @@ static int efx_ef10_try_update_nic_stats
 
 	efx_ef10_get_stat_mask(efx, mask);
 
-	rc = efx_nic_alloc_buffer(efx, &stats_buf, dma_len, GFP_ATOMIC);
+	rc = efx_nic_alloc_buffer(efx, &stats_buf, dma_len, GFP_KERNEL);
 	if (rc) {
 		spin_lock_bh(&efx->stats_lock);
 		return rc;