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entropy(9): Reduce global entropy lock from IPL_VM to IPL_SOFTSERIAL. 

This is no longer ever taken in hard interrupt context, so there's no
longer any need to block interrupts while doing crypto operations on
the global entropy pool.
This commit is contained in:
riastradh 2022-03-18 23:35:19 +00:00
parent e4ceb72edc
commit 4b3ca98c58
1 changed files with 3 additions and 3 deletions
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6
sys/kern/kern_entropy.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_entropy.c,v 1.38 2022/03/18 23:35:07 riastradh Exp $ */
/* $NetBSD: kern_entropy.c,v 1.39 2022/03/18 23:35:19 riastradh Exp $ */
/*-
* Copyright (c) 2019 The NetBSD Foundation, Inc.
@ -75,7 +75,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.38 2022/03/18 23:35:07 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.39 2022/03/18 23:35:19 riastradh Exp $");
#include <sys/param.h>
#include <sys/types.h>
@ -366,7 +366,7 @@ entropy_init(void)
NULL, 0, &E->epoch, 0, CTL_CREATE, CTL_EOL);
/* Initialize the global state for multithreaded operation. */
mutex_init(&E->lock, MUTEX_DEFAULT, IPL_VM);
mutex_init(&E->lock, MUTEX_DEFAULT, IPL_SOFTSERIAL);
cv_init(&E->cv, "entropy");
selinit(&E->selq);
cv_init(&E->sourcelock_cv, "entsrclock");