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Add sysctls for uma_kmem_{limit,total}.

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Reviewed by:	alc, dougm, kib
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20514
This commit is contained in:
Mark Johnston 2019-06-06 16:26:58 +00:00
parent 058f0f7464
commit fbd9585915
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=348747
1 changed files with 8 additions and 1 deletions
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9
sys/vm/uma_core.c
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@ -144,9 +144,16 @@ static int boot_pages;
static struct sx uma_drain_lock;
/* kmem soft limit. */
/*
* kmem soft limit, initialized by uma_set_limit(). Ensure that early
* allocations don't trigger a wakeup of the reclaim thread.
*/
static unsigned long uma_kmem_limit = LONG_MAX;
SYSCTL_ULONG(_vm, OID_AUTO, uma_kmem_limit, CTLFLAG_RD, &uma_kmem_limit, 0,
"UMA kernel memory soft limit");
static unsigned long uma_kmem_total;
SYSCTL_ULONG(_vm, OID_AUTO, uma_kmem_total, CTLFLAG_RD, &uma_kmem_total, 0,
"UMA kernel memory usage");
/* Is the VM done starting up? */
static enum { BOOT_COLD = 0, BOOT_STRAPPED, BOOT_PAGEALLOC, BOOT_BUCKETS,