Date: Fri, 7 Jun 2019 19:03:18 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r348788 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201906071903.x57J3IOf019972@repo.freebsd.org>
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Author: mav Date: Fri Jun 7 19:03:17 2019 New Revision: 348788 URL: https://svnweb.freebsd.org/changeset/base/348788 Log: Explicitly start ARC adjustment on limits change. While formally it is not necessary, but the sooner it start, the sooner it finish, and supposedly less disturbing for workload it will be. MFC after: 2 weeks Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Fri Jun 7 18:52:36 2019 (r348787) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c Fri Jun 7 19:03:17 2019 (r348788) @@ -1233,6 +1233,12 @@ sysctl_vfs_zfs_arc_meta_limit(SYSCTL_HANDLER_ARGS) return (EINVAL); arc_meta_limit = val; + + mutex_enter(&arc_adjust_lock); + arc_adjust_needed = B_TRUE; + mutex_exit(&arc_adjust_lock); + zthr_wakeup(arc_adjust_zthr); + return (0); } @@ -1293,6 +1299,11 @@ sysctl_vfs_zfs_arc_max(SYSCTL_HANDLER_ARGS) arc_c = arc_c / 2; zfs_arc_max = arc_c; + + mutex_enter(&arc_adjust_lock); + arc_adjust_needed = B_TRUE; + mutex_exit(&arc_adjust_lock); + zthr_wakeup(arc_adjust_zthr); return (0); }help
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