Date: Fri, 15 May 2020 13:53:11 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361079 - head/sys/kern Message-ID: <202005151353.04FDrBst022533@repo.freebsd.org>
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Author: kib Date: Fri May 15 13:53:10 2020 New Revision: 361079 URL: https://svnweb.freebsd.org/changeset/base/361079 Log: Improve comment for compat32 handling of sysctl hw.pagesizes. Explain why truncation works as intended. Reformat. Sponsored by: The FreeBSD Foundation MFC after: 3 days Modified: head/sys/kern/kern_mib.c Modified: head/sys/kern/kern_mib.c ============================================================================== --- head/sys/kern/kern_mib.c Fri May 15 13:52:39 2020 (r361078) +++ head/sys/kern/kern_mib.c Fri May 15 13:53:10 2020 (r361079) @@ -238,8 +238,9 @@ sysctl_hw_pagesizes(SYSCTL_HANDLER_ARGS) if (req->flags & SCTL_MASK32) { /* - * Recreate the "pagesizes" array with 32-bit elements. Truncate - * any page size greater than UINT32_MAX to zero. + * Recreate the "pagesizes" array with 32-bit elements. + * Truncate any page size greater than UINT32_MAX to zero, + * which assumes that page sizes are powers of two. */ for (i = 0; i < MAXPAGESIZES; i++) pagesizes32[i] = (uint32_t)pagesizes[i];
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