Date: Sat, 8 Dec 2018 00:48:10 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r341718 - stable/11/sys/vm Message-ID: <201812080048.wB80mAi7031836@repo.freebsd.org>
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Author: kib Date: Sat Dec 8 00:48:10 2018 New Revision: 341718 URL: https://svnweb.freebsd.org/changeset/base/341718 Log: MFC r341375: Allow to create swap zone larger than v_page_count / 2. Modified: stable/11/sys/vm/swap_pager.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/vm/swap_pager.c ============================================================================== --- stable/11/sys/vm/swap_pager.c Sat Dec 8 00:47:22 2018 (r341717) +++ stable/11/sys/vm/swap_pager.c Sat Dec 8 00:48:10 2018 (r341718) @@ -514,12 +514,12 @@ swap_pager_swap_init(void) mtx_unlock(&pbuf_mtx); /* - * Initialize our zone, guessing on the number we need based - * on the number of pages in the system. + * Initialize our zone, taking the user's requested size or + * estimating the number we need based on the number of pages + * in the system. */ - n = vm_cnt.v_page_count / 2; - if (maxswzone && n > maxswzone / sizeof(struct swblk)) - n = maxswzone / sizeof(struct swblk); + n = maxswzone != 0 ? maxswzone / sizeof(struct swblk) : + vm_cnt.v_page_count / 2; swpctrie_zone = uma_zcreate("swpctrie", pctrie_node_size(), NULL, NULL, pctrie_zone_init, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE | UMA_ZONE_VM); @@ -549,7 +549,7 @@ swap_pager_swap_init(void) n = uma_zone_get_max(swblk_zone); if (n < n2) - printf("Swap blk zone entries reduced from %lu to %lu.\n", + printf("Swap blk zone entries changed from %lu to %lu.\n", n2, n); swap_maxpages = n * SWAP_META_PAGES; swzone = n * sizeof(struct swblk);
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