Date: Fri, 14 Jun 2019 19:57:33 +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: r349039 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201906141957.x5EJvXC7065277@repo.freebsd.org>
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Author: mav Date: Fri Jun 14 19:57:32 2019 New Revision: 349039 URL: https://svnweb.freebsd.org/changeset/base/349039 Log: Alike to ZoL disable metaslab allocation tracing code. It is too generous to collect in production debug traces that can only be read with kernel debugger. Illumos includes special code in their mdb debugger to read it, we don't. MFC after: 1 week Sponsored by: iXsystems, Inc. Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c Fri Jun 14 19:47:48 2019 (r349038) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c Fri Jun 14 19:57:32 2019 (r349039) @@ -259,7 +259,9 @@ int zfs_metaslab_switch_threshold = 2; * Internal switch to enable/disable the metaslab allocation tracing * facility. */ +#ifdef _METASLAB_TRACING boolean_t metaslab_trace_enabled = B_TRUE; +#endif /* * Maximum entries that the metaslab allocation tracing facility will keep @@ -269,7 +271,9 @@ boolean_t metaslab_trace_enabled = B_TRUE; * to every exceed this value. In debug mode, the system will panic if this * limit is ever reached allowing for further investigation. */ +#ifdef _METASLAB_TRACING uint64_t metaslab_trace_max_entries = 5000; +#endif static uint64_t metaslab_weight(metaslab_t *); static void metaslab_set_fragmentation(metaslab_t *); @@ -277,8 +281,9 @@ static void metaslab_free_impl(vdev_t *, uint64_t, uin static void metaslab_check_free_impl(vdev_t *, uint64_t, uint64_t); static void metaslab_passivate(metaslab_t *msp, uint64_t weight); static uint64_t metaslab_weight_from_range_tree(metaslab_t *msp); - +#ifdef _METASLAB_TRACING kmem_cache_t *metaslab_alloc_trace_cache; +#endif /* * ========================================================================== @@ -2797,6 +2802,7 @@ metaslab_distance(metaslab_t *msp, dva_t *dva) * Metaslab allocation tracing facility * ========================================================================== */ +#ifdef _METASLAB_TRACING kstat_t *metaslab_trace_ksp; kstat_named_t metaslab_trace_over_limit; @@ -2900,6 +2906,32 @@ metaslab_trace_fini(zio_alloc_list_t *zal) list_destroy(&zal->zal_list); zal->zal_size = 0; } + +#else + +#define metaslab_trace_add(zal, mg, msp, psize, id, off, alloc) + +void +metaslab_alloc_trace_init(void) +{ +} + +void +metaslab_alloc_trace_fini(void) +{ +} + +void +metaslab_trace_init(zio_alloc_list_t *zal) +{ +} + +void +metaslab_trace_fini(zio_alloc_list_t *zal) +{ +} + +#endif /* _METASLAB_TRACING */ /* * ==========================================================================
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