Date: Fri, 12 Mar 2021 12:15:33 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: b8f7267d499c - main - uma: allow uma_zfree_pcu(..., NULL) Message-ID: <202103121215.12CCFXXD031168@gitrepo.freebsd.org>
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The branch main has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=b8f7267d499c8ef8e70b021879d3e9e087ecc32d commit b8f7267d499c8ef8e70b021879d3e9e087ecc32d Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2021-03-10 14:11:59 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-03-12 11:12:35 +0000 uma: allow uma_zfree_pcu(..., NULL) We already allow free(NULL) and uma_zfree(..., NULL). Make uma_zfree_pcpu(..., NULL) work as well. This also means that counter_u64_free(NULL) will work. These make cleanup code simpler. MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D29189 --- sys/vm/uma_core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/vm/uma_core.c b/sys/vm/uma_core.c index 8cbd1216678a..b1762500c147 100644 --- a/sys/vm/uma_core.c +++ b/sys/vm/uma_core.c @@ -3171,6 +3171,11 @@ uma_zfree_pcpu_arg(uma_zone_t zone, void *pcpu_item, void *udata) #ifdef SMP MPASS(zone->uz_flags & UMA_ZONE_PCPU); #endif + + /* uma_zfree_pcu_*(..., NULL) does nothing, to match free(9). */ + if (pcpu_item == NULL) + return; + item = zpcpu_offset_to_base(pcpu_item); uma_zfree_arg(zone, item, udata); }
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