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645 lines
18 KiB
645 lines
18 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#undef TRACE_SYSTEM |
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#define TRACE_SYSTEM gfs2 |
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#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ) |
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#define _TRACE_GFS2_H |
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#include <linux/tracepoint.h> |
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#include <linux/fs.h> |
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#include <linux/buffer_head.h> |
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#include <linux/dlmconstants.h> |
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#include <linux/gfs2_ondisk.h> |
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#include <linux/writeback.h> |
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#include <linux/ktime.h> |
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#include <linux/iomap.h> |
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#include "incore.h" |
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#include "glock.h" |
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#include "rgrp.h" |
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#define dlm_state_name(nn) { DLM_LOCK_##nn, #nn } |
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#define glock_trace_name(x) __print_symbolic(x, \ |
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dlm_state_name(IV), \ |
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dlm_state_name(NL), \ |
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dlm_state_name(CR), \ |
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dlm_state_name(CW), \ |
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dlm_state_name(PR), \ |
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dlm_state_name(PW), \ |
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dlm_state_name(EX)) |
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#define block_state_name(x) __print_symbolic(x, \ |
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{ GFS2_BLKST_FREE, "free" }, \ |
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{ GFS2_BLKST_USED, "used" }, \ |
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{ GFS2_BLKST_DINODE, "dinode" }, \ |
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{ GFS2_BLKST_UNLINKED, "unlinked" }) |
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#define TRACE_RS_DELETE 0 |
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#define TRACE_RS_TREEDEL 1 |
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#define TRACE_RS_INSERT 2 |
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#define TRACE_RS_CLAIM 3 |
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#define rs_func_name(x) __print_symbolic(x, \ |
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{ 0, "del " }, \ |
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{ 1, "tdel" }, \ |
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{ 2, "ins " }, \ |
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{ 3, "clm " }) |
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#define show_glock_flags(flags) __print_flags(flags, "", \ |
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{(1UL << GLF_LOCK), "l" }, \ |
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{(1UL << GLF_DEMOTE), "D" }, \ |
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{(1UL << GLF_PENDING_DEMOTE), "d" }, \ |
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{(1UL << GLF_DEMOTE_IN_PROGRESS), "p" }, \ |
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{(1UL << GLF_DIRTY), "y" }, \ |
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{(1UL << GLF_LFLUSH), "f" }, \ |
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{(1UL << GLF_INVALIDATE_IN_PROGRESS), "i" }, \ |
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{(1UL << GLF_REPLY_PENDING), "r" }, \ |
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{(1UL << GLF_INITIAL), "I" }, \ |
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{(1UL << GLF_FROZEN), "F" }, \ |
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{(1UL << GLF_LRU), "L" }, \ |
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{(1UL << GLF_OBJECT), "o" }, \ |
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{(1UL << GLF_BLOCKING), "b" }) |
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#ifndef NUMPTY |
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#define NUMPTY |
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static inline u8 glock_trace_state(unsigned int state) |
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{ |
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switch(state) { |
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case LM_ST_SHARED: |
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return DLM_LOCK_PR; |
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case LM_ST_DEFERRED: |
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return DLM_LOCK_CW; |
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case LM_ST_EXCLUSIVE: |
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return DLM_LOCK_EX; |
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} |
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return DLM_LOCK_NL; |
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} |
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#endif |
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/* Section 1 - Locking |
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* |
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* Objectives: |
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* Latency: Remote demote request to state change |
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* Latency: Local lock request to state change |
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* Latency: State change to lock grant |
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* Correctness: Ordering of local lock state vs. I/O requests |
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* Correctness: Responses to remote demote requests |
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*/ |
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/* General glock state change (DLM lock request completes) */ |
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TRACE_EVENT(gfs2_glock_state_change, |
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TP_PROTO(const struct gfs2_glock *gl, unsigned int new_state), |
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TP_ARGS(gl, new_state), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( u8, cur_state ) |
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__field( u8, new_state ) |
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__field( u8, dmt_state ) |
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__field( u8, tgt_state ) |
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__field( unsigned long, flags ) |
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), |
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TP_fast_assign( |
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__entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->glnum = gl->gl_name.ln_number; |
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__entry->gltype = gl->gl_name.ln_type; |
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__entry->cur_state = glock_trace_state(gl->gl_state); |
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__entry->new_state = glock_trace_state(new_state); |
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__entry->tgt_state = glock_trace_state(gl->gl_target); |
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__entry->dmt_state = glock_trace_state(gl->gl_demote_state); |
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__entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); |
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), |
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TP_printk("%u,%u glock %d:%lld state %s to %s tgt:%s dmt:%s flags:%s", |
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MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, |
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(unsigned long long)__entry->glnum, |
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glock_trace_name(__entry->cur_state), |
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glock_trace_name(__entry->new_state), |
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glock_trace_name(__entry->tgt_state), |
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glock_trace_name(__entry->dmt_state), |
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show_glock_flags(__entry->flags)) |
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); |
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/* State change -> unlocked, glock is being deallocated */ |
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TRACE_EVENT(gfs2_glock_put, |
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TP_PROTO(const struct gfs2_glock *gl), |
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TP_ARGS(gl), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( u8, cur_state ) |
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__field( unsigned long, flags ) |
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), |
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TP_fast_assign( |
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__entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->gltype = gl->gl_name.ln_type; |
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__entry->glnum = gl->gl_name.ln_number; |
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__entry->cur_state = glock_trace_state(gl->gl_state); |
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__entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); |
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), |
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TP_printk("%u,%u glock %d:%lld state %s => %s flags:%s", |
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MAJOR(__entry->dev), MINOR(__entry->dev), |
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__entry->gltype, (unsigned long long)__entry->glnum, |
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glock_trace_name(__entry->cur_state), |
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glock_trace_name(DLM_LOCK_IV), |
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show_glock_flags(__entry->flags)) |
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); |
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/* Callback (local or remote) requesting lock demotion */ |
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TRACE_EVENT(gfs2_demote_rq, |
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TP_PROTO(const struct gfs2_glock *gl, bool remote), |
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TP_ARGS(gl, remote), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( u8, cur_state ) |
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__field( u8, dmt_state ) |
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__field( unsigned long, flags ) |
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__field( bool, remote ) |
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), |
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TP_fast_assign( |
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__entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->gltype = gl->gl_name.ln_type; |
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__entry->glnum = gl->gl_name.ln_number; |
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__entry->cur_state = glock_trace_state(gl->gl_state); |
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__entry->dmt_state = glock_trace_state(gl->gl_demote_state); |
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__entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); |
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__entry->remote = remote; |
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), |
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TP_printk("%u,%u glock %d:%lld demote %s to %s flags:%s %s", |
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MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, |
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(unsigned long long)__entry->glnum, |
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glock_trace_name(__entry->cur_state), |
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glock_trace_name(__entry->dmt_state), |
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show_glock_flags(__entry->flags), |
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__entry->remote ? "remote" : "local") |
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); |
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/* Promotion/grant of a glock */ |
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TRACE_EVENT(gfs2_promote, |
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TP_PROTO(const struct gfs2_holder *gh, int first), |
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TP_ARGS(gh, first), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( int, first ) |
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__field( u8, state ) |
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), |
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TP_fast_assign( |
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__entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->glnum = gh->gh_gl->gl_name.ln_number; |
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__entry->gltype = gh->gh_gl->gl_name.ln_type; |
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__entry->first = first; |
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__entry->state = glock_trace_state(gh->gh_state); |
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), |
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TP_printk("%u,%u glock %u:%llu promote %s %s", |
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MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, |
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(unsigned long long)__entry->glnum, |
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__entry->first ? "first": "other", |
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glock_trace_name(__entry->state)) |
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); |
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/* Queue/dequeue a lock request */ |
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TRACE_EVENT(gfs2_glock_queue, |
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TP_PROTO(const struct gfs2_holder *gh, int queue), |
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TP_ARGS(gh, queue), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( int, queue ) |
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__field( u8, state ) |
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), |
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TP_fast_assign( |
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__entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->glnum = gh->gh_gl->gl_name.ln_number; |
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__entry->gltype = gh->gh_gl->gl_name.ln_type; |
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__entry->queue = queue; |
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__entry->state = glock_trace_state(gh->gh_state); |
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), |
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TP_printk("%u,%u glock %u:%llu %squeue %s", |
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MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, |
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(unsigned long long)__entry->glnum, |
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__entry->queue ? "" : "de", |
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glock_trace_name(__entry->state)) |
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); |
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/* DLM sends a reply to GFS2 */ |
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TRACE_EVENT(gfs2_glock_lock_time, |
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TP_PROTO(const struct gfs2_glock *gl, s64 tdiff), |
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TP_ARGS(gl, tdiff), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, glnum ) |
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__field( u32, gltype ) |
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__field( int, status ) |
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__field( char, flags ) |
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__field( s64, tdiff ) |
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__field( u64, srtt ) |
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__field( u64, srttvar ) |
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__field( u64, srttb ) |
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__field( u64, srttvarb ) |
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__field( u64, sirt ) |
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__field( u64, sirtvar ) |
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__field( u64, dcount ) |
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__field( u64, qcount ) |
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), |
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TP_fast_assign( |
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__entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->glnum = gl->gl_name.ln_number; |
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__entry->gltype = gl->gl_name.ln_type; |
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__entry->status = gl->gl_lksb.sb_status; |
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__entry->flags = gl->gl_lksb.sb_flags; |
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__entry->tdiff = tdiff; |
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__entry->srtt = gl->gl_stats.stats[GFS2_LKS_SRTT]; |
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__entry->srttvar = gl->gl_stats.stats[GFS2_LKS_SRTTVAR]; |
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__entry->srttb = gl->gl_stats.stats[GFS2_LKS_SRTTB]; |
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__entry->srttvarb = gl->gl_stats.stats[GFS2_LKS_SRTTVARB]; |
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__entry->sirt = gl->gl_stats.stats[GFS2_LKS_SIRT]; |
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__entry->sirtvar = gl->gl_stats.stats[GFS2_LKS_SIRTVAR]; |
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__entry->dcount = gl->gl_stats.stats[GFS2_LKS_DCOUNT]; |
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__entry->qcount = gl->gl_stats.stats[GFS2_LKS_QCOUNT]; |
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), |
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TP_printk("%u,%u glock %d:%lld status:%d flags:%02x tdiff:%lld srtt:%lld/%lld srttb:%lld/%lld sirt:%lld/%lld dcnt:%lld qcnt:%lld", |
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MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, |
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(unsigned long long)__entry->glnum, |
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__entry->status, __entry->flags, |
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(long long)__entry->tdiff, |
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(long long)__entry->srtt, |
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(long long)__entry->srttvar, |
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(long long)__entry->srttb, |
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(long long)__entry->srttvarb, |
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(long long)__entry->sirt, |
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(long long)__entry->sirtvar, |
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(long long)__entry->dcount, |
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(long long)__entry->qcount) |
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); |
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/* Section 2 - Log/journal |
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* |
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* Objectives: |
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* Latency: Log flush time |
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* Correctness: pin/unpin vs. disk I/O ordering |
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* Performance: Log usage stats |
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*/ |
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/* Pin/unpin a block in the log */ |
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TRACE_EVENT(gfs2_pin, |
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TP_PROTO(const struct gfs2_bufdata *bd, int pin), |
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TP_ARGS(bd, pin), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( int, pin ) |
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__field( u32, len ) |
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__field( sector_t, block ) |
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__field( u64, ino ) |
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), |
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TP_fast_assign( |
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__entry->dev = bd->bd_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->pin = pin; |
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__entry->len = bd->bd_bh->b_size; |
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__entry->block = bd->bd_bh->b_blocknr; |
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__entry->ino = bd->bd_gl->gl_name.ln_number; |
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), |
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TP_printk("%u,%u log %s %llu/%lu inode %llu", |
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MAJOR(__entry->dev), MINOR(__entry->dev), |
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__entry->pin ? "pin" : "unpin", |
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(unsigned long long)__entry->block, |
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(unsigned long)__entry->len, |
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(unsigned long long)__entry->ino) |
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); |
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/* Flushing the log */ |
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TRACE_EVENT(gfs2_log_flush, |
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TP_PROTO(const struct gfs2_sbd *sdp, int start, u32 flags), |
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TP_ARGS(sdp, start, flags), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( int, start ) |
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__field( u64, log_seq ) |
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__field( u32, flags ) |
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), |
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TP_fast_assign( |
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__entry->dev = sdp->sd_vfs->s_dev; |
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__entry->start = start; |
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__entry->log_seq = sdp->sd_log_sequence; |
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__entry->flags = flags; |
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), |
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TP_printk("%u,%u log flush %s %llu %llx", |
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MAJOR(__entry->dev), MINOR(__entry->dev), |
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__entry->start ? "start" : "end", |
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(unsigned long long)__entry->log_seq, |
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(unsigned long long)__entry->flags) |
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); |
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/* Reserving/releasing blocks in the log */ |
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TRACE_EVENT(gfs2_log_blocks, |
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TP_PROTO(const struct gfs2_sbd *sdp, int blocks), |
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TP_ARGS(sdp, blocks), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( int, blocks ) |
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__field( int, blks_free ) |
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), |
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TP_fast_assign( |
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__entry->dev = sdp->sd_vfs->s_dev; |
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__entry->blocks = blocks; |
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__entry->blks_free = atomic_read(&sdp->sd_log_blks_free); |
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), |
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TP_printk("%u,%u log reserve %d %d", MAJOR(__entry->dev), |
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MINOR(__entry->dev), __entry->blocks, __entry->blks_free) |
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); |
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/* Writing back the AIL */ |
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TRACE_EVENT(gfs2_ail_flush, |
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TP_PROTO(const struct gfs2_sbd *sdp, const struct writeback_control *wbc, int start), |
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TP_ARGS(sdp, wbc, start), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( int, start ) |
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__field( int, sync_mode ) |
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__field( long, nr_to_write ) |
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), |
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TP_fast_assign( |
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__entry->dev = sdp->sd_vfs->s_dev; |
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__entry->start = start; |
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__entry->sync_mode = wbc->sync_mode; |
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__entry->nr_to_write = wbc->nr_to_write; |
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), |
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TP_printk("%u,%u ail flush %s %s %ld", MAJOR(__entry->dev), |
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MINOR(__entry->dev), __entry->start ? "start" : "end", |
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__entry->sync_mode == WB_SYNC_ALL ? "all" : "none", |
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__entry->nr_to_write) |
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); |
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/* Section 3 - bmap |
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* |
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* Objectives: |
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* Latency: Bmap request time |
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* Performance: Block allocator tracing |
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* Correctness: Test of disard generation vs. blocks allocated |
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*/ |
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/* Map an extent of blocks, possibly a new allocation */ |
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TRACE_EVENT(gfs2_bmap, |
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TP_PROTO(const struct gfs2_inode *ip, const struct buffer_head *bh, |
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sector_t lblock, int create, int errno), |
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TP_ARGS(ip, bh, lblock, create, errno), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( sector_t, lblock ) |
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__field( sector_t, pblock ) |
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__field( u64, inum ) |
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__field( unsigned long, state ) |
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__field( u32, len ) |
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__field( int, create ) |
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__field( int, errno ) |
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), |
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TP_fast_assign( |
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__entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->lblock = lblock; |
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__entry->pblock = buffer_mapped(bh) ? bh->b_blocknr : 0; |
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__entry->inum = ip->i_no_addr; |
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__entry->state = bh->b_state; |
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__entry->len = bh->b_size; |
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__entry->create = create; |
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__entry->errno = errno; |
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), |
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TP_printk("%u,%u bmap %llu map %llu/%lu to %llu flags:%08lx %s %d", |
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MAJOR(__entry->dev), MINOR(__entry->dev), |
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(unsigned long long)__entry->inum, |
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(unsigned long long)__entry->lblock, |
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(unsigned long)__entry->len, |
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(unsigned long long)__entry->pblock, |
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__entry->state, __entry->create ? "create " : "nocreate", |
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__entry->errno) |
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); |
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TRACE_EVENT(gfs2_iomap_start, |
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TP_PROTO(const struct gfs2_inode *ip, loff_t pos, ssize_t length, |
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u16 flags), |
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TP_ARGS(ip, pos, length, flags), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, inum ) |
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__field( loff_t, pos ) |
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__field( ssize_t, length ) |
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__field( u16, flags ) |
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), |
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TP_fast_assign( |
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__entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
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__entry->inum = ip->i_no_addr; |
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__entry->pos = pos; |
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__entry->length = length; |
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__entry->flags = flags; |
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), |
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TP_printk("%u,%u bmap %llu iomap start %llu/%lu flags:%08x", |
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MAJOR(__entry->dev), MINOR(__entry->dev), |
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(unsigned long long)__entry->inum, |
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(unsigned long long)__entry->pos, |
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(unsigned long)__entry->length, (u16)__entry->flags) |
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); |
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TRACE_EVENT(gfs2_iomap_end, |
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TP_PROTO(const struct gfs2_inode *ip, struct iomap *iomap, int ret), |
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TP_ARGS(ip, iomap, ret), |
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TP_STRUCT__entry( |
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__field( dev_t, dev ) |
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__field( u64, inum ) |
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__field( loff_t, offset ) |
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__field( ssize_t, length ) |
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__field( sector_t, pblock ) |
|
__field( u16, flags ) |
|
__field( u16, type ) |
|
__field( int, ret ) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
|
__entry->inum = ip->i_no_addr; |
|
__entry->offset = iomap->offset; |
|
__entry->length = iomap->length; |
|
__entry->pblock = iomap->addr == IOMAP_NULL_ADDR ? 0 : |
|
(iomap->addr >> ip->i_inode.i_blkbits); |
|
__entry->flags = iomap->flags; |
|
__entry->type = iomap->type; |
|
__entry->ret = ret; |
|
), |
|
|
|
TP_printk("%u,%u bmap %llu iomap end %llu/%lu to %llu ty:%d flags:%08x rc:%d", |
|
MAJOR(__entry->dev), MINOR(__entry->dev), |
|
(unsigned long long)__entry->inum, |
|
(unsigned long long)__entry->offset, |
|
(unsigned long)__entry->length, |
|
(long long)__entry->pblock, |
|
(u16)__entry->type, |
|
(u16)__entry->flags, __entry->ret) |
|
); |
|
|
|
/* Keep track of blocks as they are allocated/freed */ |
|
TRACE_EVENT(gfs2_block_alloc, |
|
|
|
TP_PROTO(const struct gfs2_inode *ip, struct gfs2_rgrpd *rgd, |
|
u64 block, unsigned len, u8 block_state), |
|
|
|
TP_ARGS(ip, rgd, block, len, block_state), |
|
|
|
TP_STRUCT__entry( |
|
__field( dev_t, dev ) |
|
__field( u64, start ) |
|
__field( u64, inum ) |
|
__field( u32, len ) |
|
__field( u8, block_state ) |
|
__field( u64, rd_addr ) |
|
__field( u32, rd_free_clone ) |
|
__field( u32, rd_requested ) |
|
__field( u32, rd_reserved ) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->dev = rgd->rd_gl->gl_name.ln_sbd->sd_vfs->s_dev; |
|
__entry->start = block; |
|
__entry->inum = ip->i_no_addr; |
|
__entry->len = len; |
|
__entry->block_state = block_state; |
|
__entry->rd_addr = rgd->rd_addr; |
|
__entry->rd_free_clone = rgd->rd_free_clone; |
|
__entry->rd_requested = rgd->rd_requested; |
|
__entry->rd_reserved = rgd->rd_reserved; |
|
), |
|
|
|
TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rq:%u rr:%u", |
|
MAJOR(__entry->dev), MINOR(__entry->dev), |
|
(unsigned long long)__entry->inum, |
|
(unsigned long long)__entry->start, |
|
(unsigned long)__entry->len, |
|
block_state_name(__entry->block_state), |
|
(unsigned long long)__entry->rd_addr, |
|
__entry->rd_free_clone, |
|
__entry->rd_requested, |
|
__entry->rd_reserved) |
|
); |
|
|
|
/* Keep track of multi-block reservations as they are allocated/freed */ |
|
TRACE_EVENT(gfs2_rs, |
|
|
|
TP_PROTO(const struct gfs2_blkreserv *rs, u8 func), |
|
|
|
TP_ARGS(rs, func), |
|
|
|
TP_STRUCT__entry( |
|
__field( dev_t, dev ) |
|
__field( u64, rd_addr ) |
|
__field( u32, rd_free_clone ) |
|
__field( u32, rd_requested ) |
|
__field( u32, rd_reserved ) |
|
__field( u64, inum ) |
|
__field( u64, start ) |
|
__field( u32, requested ) |
|
__field( u32, reserved ) |
|
__field( u8, func ) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->dev = rs->rs_rgd->rd_sbd->sd_vfs->s_dev; |
|
__entry->rd_addr = rs->rs_rgd->rd_addr; |
|
__entry->rd_free_clone = rs->rs_rgd->rd_free_clone; |
|
__entry->rd_requested = rs->rs_rgd->rd_requested; |
|
__entry->rd_reserved = rs->rs_rgd->rd_reserved; |
|
__entry->inum = container_of(rs, struct gfs2_inode, |
|
i_res)->i_no_addr; |
|
__entry->start = rs->rs_start; |
|
__entry->requested = rs->rs_requested; |
|
__entry->reserved = rs->rs_reserved; |
|
__entry->func = func; |
|
), |
|
|
|
TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%u rq:%u rr:%u %s q:%u r:%u", |
|
MAJOR(__entry->dev), MINOR(__entry->dev), |
|
(unsigned long long)__entry->inum, |
|
(unsigned long long)__entry->start, |
|
(unsigned long long)__entry->rd_addr, |
|
__entry->rd_free_clone, |
|
__entry->rd_requested, |
|
__entry->rd_reserved, |
|
rs_func_name(__entry->func), |
|
__entry->requested, |
|
__entry->reserved) |
|
); |
|
|
|
#endif /* _TRACE_GFS2_H */ |
|
|
|
/* This part must be outside protection */ |
|
#undef TRACE_INCLUDE_PATH |
|
#define TRACE_INCLUDE_PATH . |
|
#define TRACE_INCLUDE_FILE trace_gfs2 |
|
#include <trace/define_trace.h> |
|
|
|
|