7f60329a26
5987 zfs prefetch code needs work Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Approved by: Gordon Ross <gordon.ross@nexenta.com> References: https://www.illumos.org/issues/5987 zfs prefetch code needs work illumos/illumos-gate@cf6106c 5987 zfs prefetch code needs work Porting notes: - [module/zfs/dbuf.c] -5f6d0b6Handle block pointers with a corrupt logical size - [module/zfs/dmu_zfetch.c] -c65aa5bFix gcc missing parenthesis warnings -428870fUpdate core ZFS code from build 121 to build 141. -79c76d5Change KM_PUSHPAGE -> KM_SLEEP -b8d06fcSwitch KM_SLEEP to KM_PUSHPAGE - Account for ISO C90 - mixed declarations and code - warnings - Module parameters (new/changed): - Replaced zfetch_block_cap with zfetch_max_distance (Max bytes to prefetch per stream (default 8MB; 8 * 1024 * 1024)) - Preserved zfs_prefetch_disable as 'int' for consistency with existing Linux module options. - [include/sys/trace_arc.h] - Added new tracepoints - DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__sync__wait__for__async); - DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__demand__hit__predictive__prefetch); - [man/man5/zfs-module-parameters.5] - Updated man page Ported-by: kernelOfTruth kerneloftruth@gmail.com Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
425 lines
15 KiB
C
425 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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#undef TRACE_SYSTEM_VAR
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#define TRACE_SYSTEM_VAR zfs_arc
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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(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_flags = ab->b_flags;
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__entry->hdr_datacnt = ab->b_l1hdr.b_datacnt;
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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_l1hdr.b_state->arcs_state;
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__entry->hdr_access = ab->b_l1hdr.b_arc_access;
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__entry->hdr_mru_hits = ab->b_l1hdr.b_mru_hits;
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__entry->hdr_mru_ghost_hits = ab->b_l1hdr.b_mru_ghost_hits;
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__entry->hdr_mfu_hits = ab->b_l1hdr.b_mfu_hits;
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__entry->hdr_mfu_ghost_hits = ab->b_l1hdr.b_mfu_ghost_hits;
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__entry->hdr_l2_hits = ab->b_l1hdr.b_l2_hits;
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__entry->hdr_refcount = ab->b_l1hdr.b_refcnt.rc_count;
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),
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TP_printk("hdr { dva 0x%llx:0x%llx birth %llu "
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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_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_arc__sync__wait__for__async);
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DEFINE_ARC_BUF_HDR_EVENT(zfs_arc__demand__hit__predictive__prefetch);
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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(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_flags = hdr->b_flags;
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__entry->hdr_datacnt = hdr->b_l1hdr.b_datacnt;
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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_l1hdr.b_state->arcs_state;
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__entry->hdr_access = hdr->b_l1hdr.b_arc_access;
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__entry->hdr_mru_hits = hdr->b_l1hdr.b_mru_hits;
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__entry->hdr_mru_ghost_hits = hdr->b_l1hdr.b_mru_ghost_hits;
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__entry->hdr_mfu_hits = hdr->b_l1hdr.b_mfu_hits;
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__entry->hdr_mfu_ghost_hits = hdr->b_l1hdr.b_mfu_ghost_hits;
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__entry->hdr_l2_hits = hdr->b_l1hdr.b_l2_hits;
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__entry->hdr_refcount = hdr->b_l1hdr.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 "
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"flags 0x%x datacnt %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_flags,
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__entry->hdr_datacnt, __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,
|
|
__entry->bp_dva0[0], __entry->bp_dva0[1],
|
|
__entry->bp_dva1[0], __entry->bp_dva1[1],
|
|
__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(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_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 "
|
|
"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_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 */
|