Date: Thu, 7 May 2009 14:24:50 +0000 (UTC) From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r191883 - head/sys/compat/linux Message-ID: <200905071424.n47EOos1058369@svn.freebsd.org>
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Author: dchagin Date: Thu May 7 14:24:50 2009 New Revision: 191883 URL: http://svn.freebsd.org/changeset/base/191883 Log: Linux exports HZ value to user space via AT_CLKTCK auxiliary vector entry, which is available for Glibc as sysconf(_SC_CLK_TCK). If AT_CLKTCK entry is not exported, Glibc uses 100. linux_times() shall use the value that is exported to user space. Pointyhat to: dchagin PR: kern/134251 Approved by: kib (mentor) MFC after: 2 weeks Modified: head/sys/compat/linux/linux_misc.c Modified: head/sys/compat/linux/linux_misc.c ============================================================================== --- head/sys/compat/linux/linux_misc.c Thu May 7 13:49:48 2009 (r191882) +++ head/sys/compat/linux/linux_misc.c Thu May 7 14:24:50 2009 (r191883) @@ -659,9 +659,7 @@ struct l_times_argv { l_clock_t tms_cstime; }; -#define CLK_TCK 100 /* Linux uses 100 */ - -#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK)) +#define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz)) int linux_times(struct thread *td, struct linux_times_args *args)
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