mm/vmscan: print err before panic

If panic is enable,the err information will not be printed before bugon,
So swap it.  Print the return value of PTR_ERR(pgdat->kswapd) also.

Link: https://lkml.kernel.org/r/20230906083700.181-1-angus.chen@jaguarmicro.com
Signed-off-by: Angus Chen <angus.chen@jaguarmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Angus Chen 2023-09-06 16:37:00 +08:00 committed by Andrew Morton
parent 40dca9b3d6
commit 037dd8f902

View file

@ -7892,8 +7892,9 @@ void __meminit kswapd_run(int nid)
pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid);
if (IS_ERR(pgdat->kswapd)) {
/* failure at boot is fatal */
pr_err("Failed to start kswapd on node %dret=%ld\n",
nid, PTR_ERR(pgdat->kswapd));
BUG_ON(system_state < SYSTEM_RUNNING);
pr_err("Failed to start kswapd on node %d\n", nid);
pgdat->kswapd = NULL;
}
}