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49ee64e5e6
Older versions of GCC (e.g. GCC 4.4.7 on RHEL6) do not allow duplicate typedef declarations with the same type. The trace.h header contains some typedefs to avoid 'unknown type' errors for C files that haven't declared the type in question. But this causes build failures for C files that have already declared the type. Newer versions of GCC (e.g. v4.6) allow duplicate typedefs with the same type unless pedantic error checking is in force. To support the older versions we need to remove the duplicate typedefs. Removal of the typedefs means we can't built tracepoints code using those types unless the required headers have been included. To facilitate this, all tracepoint event declarations have been moved out of trace.h into separate headers. Each new header is explicitly included from the C file that uses the events defined therein. The trace.h header is still indirectly included form zfs_context.h and provides the implementation of the dprintf(), dbgmsg(), and SET_ERROR() interfaces. This makes those interfaces readily available throughout the code base. The macros that redefine DTRACE_PROBE* to use Linux tracepoints are also still provided by trace.h, so it is a prerequisite for the other trace_*.h headers. These new Linux implementation-specific headers do introduce a small divergence from upstream ZFS in several core C files, but this should not present a significant maintenance burden. Signed-off-by: Ned Bass <bass6@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #2953
429 lines
15 KiB
C
429 lines
15 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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#include <sys/list.h>
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#if defined(_KERNEL) && defined(HAVE_DECLARE_EVENT_CLASS)
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM zfs
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#if !defined(_TRACE_ARC_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_ARC_H
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#include <linux/tracepoint.h>
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#include <sys/types.h>
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/*
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* Generic support for one argument tracepoints of the form:
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*
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* DTRACE_PROBE1(...,
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* arc_buf_hdr_t *, ...);
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*/
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DECLARE_EVENT_CLASS(zfs_arc_buf_hdr_class,
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TP_PROTO(arc_buf_hdr_t *ab),
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TP_ARGS(ab),
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TP_STRUCT__entry(
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__array(uint64_t, hdr_dva_word, 2)
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__field(uint64_t, hdr_birth)
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__field(uint64_t, hdr_cksum0)
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__field(uint32_t, hdr_flags)
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__field(uint32_t, hdr_datacnt)
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__field(arc_buf_contents_t, hdr_type)
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__field(uint64_t, hdr_size)
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__field(uint64_t, hdr_spa)
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__field(arc_state_type_t, hdr_state_type)
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__field(clock_t, hdr_access)
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__field(uint32_t, hdr_mru_hits)
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__field(uint32_t, hdr_mru_ghost_hits)
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__field(uint32_t, hdr_mfu_hits)
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__field(uint32_t, hdr_mfu_ghost_hits)
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__field(uint32_t, hdr_l2_hits)
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__field(int64_t, hdr_refcount)
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),
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TP_fast_assign(
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__entry->hdr_dva_word[0] = ab->b_dva.dva_word[0];
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__entry->hdr_dva_word[1] = ab->b_dva.dva_word[1];
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__entry->hdr_birth = ab->b_birth;
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__entry->hdr_cksum0 = ab->b_cksum0;
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__entry->hdr_flags = ab->b_flags;
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__entry->hdr_datacnt = ab->b_datacnt;
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__entry->hdr_type = ab->b_type;
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__entry->hdr_size = ab->b_size;
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__entry->hdr_spa = ab->b_spa;
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__entry->hdr_state_type = ab->b_state->arcs_state;
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__entry->hdr_access = ab->b_arc_access;
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__entry->hdr_mru_hits = ab->b_mru_hits;
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__entry->hdr_mru_ghost_hits = ab->b_mru_ghost_hits;
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__entry->hdr_mfu_hits = ab->b_mfu_hits;
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__entry->hdr_mfu_ghost_hits = ab->b_mfu_ghost_hits;
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__entry->hdr_l2_hits = ab->b_l2_hits;
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__entry->hdr_refcount = ab->b_refcnt.rc_count;
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),
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TP_printk("hdr { dva 0x%llx:0x%llx birth %llu cksum0 0x%llx "
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"flags 0x%x datacnt %u type %u size %llu spa %llu "
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"state_type %u access %lu mru_hits %u mru_ghost_hits %u "
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"mfu_hits %u mfu_ghost_hits %u l2_hits %u refcount %lli }",
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__entry->hdr_dva_word[0], __entry->hdr_dva_word[1],
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__entry->hdr_birth, __entry->hdr_cksum0, __entry->hdr_flags,
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__entry->hdr_datacnt, __entry->hdr_type, __entry->hdr_size,
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__entry->hdr_spa, __entry->hdr_state_type,
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__entry->hdr_access, __entry->hdr_mru_hits,
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__entry->hdr_mru_ghost_hits, __entry->hdr_mfu_hits,
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__entry->hdr_mfu_ghost_hits, __entry->hdr_l2_hits,
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__entry->hdr_refcount)
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);
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#define DEFINE_ARC_BUF_HDR_EVENT(name) \
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DEFINE_EVENT(zfs_arc_buf_hdr_class, name, \
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TP_PROTO(arc_buf_hdr_t *ab), \
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TP_ARGS(ab))
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DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__hit);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__evict);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__delete);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_new_state__mru);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_new_state__mfu);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_l2arc__hit);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_l2arc__miss);
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/*
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* Generic support for two argument tracepoints of the form:
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*
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* DTRACE_PROBE2(...,
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* vdev_t *, ...,
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* zio_t *, ...);
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*/
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#define ZIO_TP_STRUCT_ENTRY \
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__field(zio_type_t, zio_type) \
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__field(int, zio_cmd) \
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__field(zio_priority_t, zio_priority) \
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__field(uint64_t, zio_size) \
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__field(uint64_t, zio_orig_size) \
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__field(uint64_t, zio_offset) \
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__field(hrtime_t, zio_timestamp) \
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__field(hrtime_t, zio_delta) \
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__field(uint64_t, zio_delay) \
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__field(enum zio_flag, zio_flags) \
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__field(enum zio_stage, zio_stage) \
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__field(enum zio_stage, zio_pipeline) \
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__field(enum zio_flag, zio_orig_flags) \
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__field(enum zio_stage, zio_orig_stage) \
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__field(enum zio_stage, zio_orig_pipeline) \
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__field(uint8_t, zio_reexecute) \
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__field(uint64_t, zio_txg) \
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__field(int, zio_error) \
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__field(uint64_t, zio_ena) \
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\
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__field(enum zio_checksum, zp_checksum) \
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__field(enum zio_compress, zp_compress) \
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__field(dmu_object_type_t, zp_type) \
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__field(uint8_t, zp_level) \
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__field(uint8_t, zp_copies) \
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__field(boolean_t, zp_dedup) \
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__field(boolean_t, zp_dedup_verify) \
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__field(boolean_t, zp_nopwrite)
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#define ZIO_TP_FAST_ASSIGN \
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__entry->zio_type = zio->io_type; \
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__entry->zio_cmd = zio->io_cmd; \
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__entry->zio_priority = zio->io_priority; \
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__entry->zio_size = zio->io_size; \
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__entry->zio_orig_size = zio->io_orig_size; \
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__entry->zio_offset = zio->io_offset; \
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__entry->zio_timestamp = zio->io_timestamp; \
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__entry->zio_delta = zio->io_delta; \
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__entry->zio_delay = zio->io_delay; \
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__entry->zio_flags = zio->io_flags; \
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__entry->zio_stage = zio->io_stage; \
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__entry->zio_pipeline = zio->io_pipeline; \
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__entry->zio_orig_flags = zio->io_orig_flags; \
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__entry->zio_orig_stage = zio->io_orig_stage; \
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__entry->zio_orig_pipeline = zio->io_orig_pipeline; \
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__entry->zio_reexecute = zio->io_reexecute; \
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__entry->zio_txg = zio->io_txg; \
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__entry->zio_error = zio->io_error; \
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__entry->zio_ena = zio->io_ena; \
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\
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__entry->zp_checksum = zio->io_prop.zp_checksum; \
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__entry->zp_compress = zio->io_prop.zp_compress; \
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__entry->zp_type = zio->io_prop.zp_type; \
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__entry->zp_level = zio->io_prop.zp_level; \
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__entry->zp_copies = zio->io_prop.zp_copies; \
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__entry->zp_dedup = zio->io_prop.zp_dedup; \
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__entry->zp_nopwrite = zio->io_prop.zp_nopwrite; \
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__entry->zp_dedup_verify = zio->io_prop.zp_dedup_verify;
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#define ZIO_TP_PRINTK_FMT \
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"zio { type %u cmd %i prio %u size %llu orig_size %llu " \
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"offset %llu timestamp %llu delta %llu delay %llu " \
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"flags 0x%x stage 0x%x pipeline 0x%x orig_flags 0x%x " \
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"orig_stage 0x%x orig_pipeline 0x%x reexecute %u " \
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"txg %llu error %d ena %llu prop { checksum %u compress %u " \
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"type %u level %u copies %u dedup %u dedup_verify %u nopwrite %u } }"
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#define ZIO_TP_PRINTK_ARGS \
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__entry->zio_type, __entry->zio_cmd, __entry->zio_priority, \
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__entry->zio_size, __entry->zio_orig_size, __entry->zio_offset, \
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__entry->zio_timestamp, __entry->zio_delta, __entry->zio_delay, \
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__entry->zio_flags, __entry->zio_stage, __entry->zio_pipeline, \
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__entry->zio_orig_flags, __entry->zio_orig_stage, \
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__entry->zio_orig_pipeline, __entry->zio_reexecute, \
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__entry->zio_txg, __entry->zio_error, __entry->zio_ena, \
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__entry->zp_checksum, __entry->zp_compress, __entry->zp_type, \
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__entry->zp_level, __entry->zp_copies, __entry->zp_dedup, \
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__entry->zp_dedup_verify, __entry->zp_nopwrite
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DECLARE_EVENT_CLASS(zfs_l2arc_rw_class,
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TP_PROTO(vdev_t *vd, zio_t *zio),
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TP_ARGS(vd, zio),
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TP_STRUCT__entry(
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__field(uint64_t, vdev_id)
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__field(uint64_t, vdev_guid)
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__field(uint64_t, vdev_state)
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ZIO_TP_STRUCT_ENTRY
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),
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TP_fast_assign(
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__entry->vdev_id = vd->vdev_id;
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__entry->vdev_guid = vd->vdev_guid;
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__entry->vdev_state = vd->vdev_state;
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ZIO_TP_FAST_ASSIGN
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),
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TP_printk("vdev { id %llu guid %llu state %llu } "
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ZIO_TP_PRINTK_FMT, __entry->vdev_id, __entry->vdev_guid,
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__entry->vdev_state, ZIO_TP_PRINTK_ARGS)
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);
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#define DEFINE_L2ARC_RW_EVENT(name) \
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DEFINE_EVENT(zfs_l2arc_rw_class, name, \
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TP_PROTO(vdev_t *vd, zio_t *zio), \
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TP_ARGS(vd, zio))
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DEFINE_L2ARC_RW_EVENT(zfs_l2arc__read);
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DEFINE_L2ARC_RW_EVENT(zfs_l2arc__write);
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/*
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* Generic support for two argument tracepoints of the form:
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*
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* DTRACE_PROBE2(...,
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* zio_t *, ...,
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* l2arc_write_callback_t *, ...);
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*/
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DECLARE_EVENT_CLASS(zfs_l2arc_iodone_class,
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TP_PROTO(zio_t *zio, l2arc_write_callback_t *cb),
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TP_ARGS(zio, cb),
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TP_STRUCT__entry(ZIO_TP_STRUCT_ENTRY),
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TP_fast_assign(ZIO_TP_FAST_ASSIGN),
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TP_printk(ZIO_TP_PRINTK_FMT, ZIO_TP_PRINTK_ARGS)
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);
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#define DEFINE_L2ARC_IODONE_EVENT(name) \
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DEFINE_EVENT(zfs_l2arc_iodone_class, name, \
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TP_PROTO(zio_t *zio, l2arc_write_callback_t *cb), \
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TP_ARGS(zio, cb))
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DEFINE_L2ARC_IODONE_EVENT(zfs_l2arc__iodone);
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/*
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* Generic support for four argument tracepoints of the form:
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*
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* DTRACE_PROBE4(...,
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* arc_buf_hdr_t *, ...,
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* const blkptr_t *,
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* uint64_t,
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* const zbookmark_phys_t *);
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*/
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DECLARE_EVENT_CLASS(zfs_arc_miss_class,
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TP_PROTO(arc_buf_hdr_t *hdr,
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const blkptr_t *bp, uint64_t size, const zbookmark_phys_t *zb),
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TP_ARGS(hdr, bp, size, zb),
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TP_STRUCT__entry(
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__array(uint64_t, hdr_dva_word, 2)
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__field(uint64_t, hdr_birth)
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__field(uint64_t, hdr_cksum0)
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__field(uint32_t, hdr_flags)
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__field(uint32_t, hdr_datacnt)
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__field(arc_buf_contents_t, hdr_type)
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__field(uint64_t, hdr_size)
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__field(uint64_t, hdr_spa)
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__field(arc_state_type_t, hdr_state_type)
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__field(clock_t, hdr_access)
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__field(uint32_t, hdr_mru_hits)
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__field(uint32_t, hdr_mru_ghost_hits)
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__field(uint32_t, hdr_mfu_hits)
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__field(uint32_t, hdr_mfu_ghost_hits)
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__field(uint32_t, hdr_l2_hits)
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__field(int64_t, hdr_refcount)
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__array(uint64_t, bp_dva0, 2)
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__array(uint64_t, bp_dva1, 2)
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__array(uint64_t, bp_dva2, 2)
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__array(uint64_t, bp_cksum, 4)
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__field(uint64_t, bp_lsize)
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__field(uint64_t, zb_objset)
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__field(uint64_t, zb_object)
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__field(int64_t, zb_level)
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__field(uint64_t, zb_blkid)
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),
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TP_fast_assign(
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__entry->hdr_dva_word[0] = hdr->b_dva.dva_word[0];
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__entry->hdr_dva_word[1] = hdr->b_dva.dva_word[1];
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__entry->hdr_birth = hdr->b_birth;
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__entry->hdr_cksum0 = hdr->b_cksum0;
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__entry->hdr_flags = hdr->b_flags;
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__entry->hdr_datacnt = hdr->b_datacnt;
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__entry->hdr_type = hdr->b_type;
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__entry->hdr_size = hdr->b_size;
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__entry->hdr_spa = hdr->b_spa;
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__entry->hdr_state_type = hdr->b_state->arcs_state;
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__entry->hdr_access = hdr->b_arc_access;
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__entry->hdr_mru_hits = hdr->b_mru_hits;
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__entry->hdr_mru_ghost_hits = hdr->b_mru_ghost_hits;
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__entry->hdr_mfu_hits = hdr->b_mfu_hits;
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__entry->hdr_mfu_ghost_hits = hdr->b_mfu_ghost_hits;
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__entry->hdr_l2_hits = hdr->b_l2_hits;
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__entry->hdr_refcount = hdr->b_refcnt.rc_count;
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__entry->bp_dva0[0] = bp->blk_dva[0].dva_word[0];
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__entry->bp_dva0[1] = bp->blk_dva[0].dva_word[1];
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__entry->bp_dva1[0] = bp->blk_dva[1].dva_word[0];
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__entry->bp_dva1[1] = bp->blk_dva[1].dva_word[1];
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__entry->bp_dva2[0] = bp->blk_dva[2].dva_word[0];
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__entry->bp_dva2[1] = bp->blk_dva[2].dva_word[1];
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__entry->bp_cksum[0] = bp->blk_cksum.zc_word[0];
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__entry->bp_cksum[1] = bp->blk_cksum.zc_word[1];
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__entry->bp_cksum[2] = bp->blk_cksum.zc_word[2];
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__entry->bp_cksum[3] = bp->blk_cksum.zc_word[3];
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__entry->bp_lsize = size;
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__entry->zb_objset = zb->zb_objset;
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__entry->zb_object = zb->zb_object;
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__entry->zb_level = zb->zb_level;
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__entry->zb_blkid = zb->zb_blkid;
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),
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TP_printk("hdr { dva 0x%llx:0x%llx birth %llu cksum0 0x%llx "
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"flags 0x%x datacnt %u type %u size %llu spa %llu state_type %u "
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"access %lu mru_hits %u mru_ghost_hits %u mfu_hits %u "
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"mfu_ghost_hits %u l2_hits %u refcount %lli } "
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"bp { dva0 0x%llx:0x%llx dva1 0x%llx:0x%llx dva2 "
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"0x%llx:0x%llx cksum 0x%llx:0x%llx:0x%llx:0x%llx "
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"lsize %llu } zb { objset %llu object %llu level %lli "
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"blkid %llu }",
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__entry->hdr_dva_word[0], __entry->hdr_dva_word[1],
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__entry->hdr_birth, __entry->hdr_cksum0, __entry->hdr_flags,
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__entry->hdr_datacnt, __entry->hdr_type, __entry->hdr_size,
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__entry->hdr_spa, __entry->hdr_state_type, __entry->hdr_access,
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__entry->hdr_mru_hits, __entry->hdr_mru_ghost_hits,
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__entry->hdr_mfu_hits, __entry->hdr_mfu_ghost_hits,
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__entry->hdr_l2_hits, __entry->hdr_refcount,
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__entry->bp_dva0[0], __entry->bp_dva0[1],
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__entry->bp_dva1[0], __entry->bp_dva1[1],
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__entry->bp_dva2[0], __entry->bp_dva2[1],
|
|
__entry->bp_cksum[0], __entry->bp_cksum[1],
|
|
__entry->bp_cksum[2], __entry->bp_cksum[3],
|
|
__entry->bp_lsize, __entry->zb_objset, __entry->zb_object,
|
|
__entry->zb_level, __entry->zb_blkid)
|
|
);
|
|
|
|
#define DEFINE_ARC_MISS_EVENT(name) \
|
|
DEFINE_EVENT(zfs_arc_miss_class, name, \
|
|
TP_PROTO(arc_buf_hdr_t *hdr, \
|
|
const blkptr_t *bp, uint64_t size, const zbookmark_phys_t *zb), \
|
|
TP_ARGS(hdr, bp, size, zb))
|
|
DEFINE_ARC_MISS_EVENT(zfs_arc__miss);
|
|
|
|
/*
|
|
* Generic support for four argument tracepoints of the form:
|
|
*
|
|
* DTRACE_PROBE4(...,
|
|
* l2arc_dev_t *, ...,
|
|
* list_t *, ...,
|
|
* uint64_t, ...,
|
|
* boolean_t, ...);
|
|
*/
|
|
|
|
DECLARE_EVENT_CLASS(zfs_l2arc_evict_class,
|
|
TP_PROTO(l2arc_dev_t *dev,
|
|
list_t *buflist, uint64_t taddr, boolean_t all),
|
|
TP_ARGS(dev, buflist, taddr, all),
|
|
TP_STRUCT__entry(
|
|
__field(uint64_t, vdev_id)
|
|
__field(uint64_t, vdev_guid)
|
|
__field(uint64_t, vdev_state)
|
|
|
|
__field(uint64_t, l2ad_hand)
|
|
__field(uint64_t, l2ad_start)
|
|
__field(uint64_t, l2ad_end)
|
|
__field(uint64_t, l2ad_evict)
|
|
__field(boolean_t, l2ad_first)
|
|
__field(boolean_t, l2ad_writing)
|
|
|
|
__field(uint64_t, taddr)
|
|
__field(boolean_t, all)
|
|
),
|
|
TP_fast_assign(
|
|
__entry->vdev_id = dev->l2ad_vdev->vdev_id;
|
|
__entry->vdev_guid = dev->l2ad_vdev->vdev_guid;
|
|
__entry->vdev_state = dev->l2ad_vdev->vdev_state;
|
|
|
|
__entry->l2ad_hand = dev->l2ad_hand;
|
|
__entry->l2ad_start = dev->l2ad_start;
|
|
__entry->l2ad_end = dev->l2ad_end;
|
|
__entry->l2ad_evict = dev->l2ad_evict;
|
|
__entry->l2ad_first = dev->l2ad_first;
|
|
__entry->l2ad_writing = dev->l2ad_writing;
|
|
|
|
__entry->taddr = taddr;
|
|
__entry->all = all;
|
|
),
|
|
TP_printk("l2ad { vdev { id %llu guid %llu state %llu } "
|
|
"hand %llu start %llu end %llu evict %llu "
|
|
"first %d writing %d } taddr %llu all %d",
|
|
__entry->vdev_id, __entry->vdev_guid, __entry->vdev_state,
|
|
__entry->l2ad_hand, __entry->l2ad_start,
|
|
__entry->l2ad_end, __entry->l2ad_evict,
|
|
__entry->l2ad_first, __entry->l2ad_writing,
|
|
__entry->taddr, __entry->all)
|
|
);
|
|
|
|
#define DEFINE_L2ARC_EVICT_EVENT(name) \
|
|
DEFINE_EVENT(zfs_l2arc_evict_class, name, \
|
|
TP_PROTO(l2arc_dev_t *dev, \
|
|
list_t *buflist, uint64_t taddr, boolean_t all), \
|
|
TP_ARGS(dev, buflist, taddr, all))
|
|
DEFINE_L2ARC_EVICT_EVENT(zfs_l2arc__evict);
|
|
|
|
#endif /* _TRACE_ARC_H */
|
|
|
|
#undef TRACE_INCLUDE_PATH
|
|
#undef TRACE_INCLUDE_FILE
|
|
#define TRACE_INCLUDE_PATH sys
|
|
#define TRACE_INCLUDE_FILE trace_arc
|
|
#include <trace/define_trace.h>
|
|
|
|
#endif /* _KERNEL && HAVE_DECLARE_EVENT_CLASS */
|