cregit-Linux how code gets into the kernel

Release 4.10 fs/gfs2/trace_gfs2.h

Directory: fs/gfs2

#undef TRACE_SYSTEM

#define TRACE_SYSTEM gfs2

#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_GFS2_H

#include <linux/tracepoint.h>

#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/dlmconstants.h>
#include <linux/gfs2_ondisk.h>
#include <linux/writeback.h>
#include <linux/ktime.h>
#include "incore.h"
#include "glock.h"
#include "rgrp.h"


#define dlm_state_name(nn) { DLM_LOCK_##nn, #nn }

#define glock_trace_name(x) __print_symbolic(x,             \
                            dlm_state_name(IV),         \
                            dlm_state_name(NL),         \
                            dlm_state_name(CR),         \
                            dlm_state_name(CW),         \
                            dlm_state_name(PR),         \
                            dlm_state_name(PW),         \
                            dlm_state_name(EX))


#define block_state_name(x) __print_symbolic(x,                     \
                            { GFS2_BLKST_FREE, "free" },        \
                            { GFS2_BLKST_USED, "used" },        \
                            { GFS2_BLKST_DINODE, "dinode" },    \
                            { GFS2_BLKST_UNLINKED, "unlinked" })


#define TRACE_RS_DELETE  0

#define TRACE_RS_TREEDEL 1

#define TRACE_RS_INSERT  2

#define TRACE_RS_CLAIM   3


#define rs_func_name(x) __print_symbolic(x,     \
                                         { 0, "del " }, \
                                         { 1, "tdel" }, \
                                         { 2, "ins " }, \
                                         { 3, "clm " })


#define show_glock_flags(flags) __print_flags(flags, "",        \
        {(1UL << GLF_LOCK),                     "l" },          \
        {(1UL << GLF_DEMOTE),                   "D" },          \
        {(1UL << GLF_PENDING_DEMOTE),           "d" },          \
        {(1UL << GLF_DEMOTE_IN_PROGRESS),       "p" },          \
        {(1UL << GLF_DIRTY),                    "y" },          \
        {(1UL << GLF_LFLUSH),                   "f" },          \
        {(1UL << GLF_INVALIDATE_IN_PROGRESS),   "i" },          \
        {(1UL << GLF_REPLY_PENDING),            "r" },          \
        {(1UL << GLF_INITIAL),                  "I" },          \
        {(1UL << GLF_FROZEN),                   "F" },          \
        {(1UL << GLF_QUEUED),                   "q" },          \
        {(1UL << GLF_LRU),                      "L" },          \
        {(1UL << GLF_OBJECT),                   "o" },          \
        {(1UL << GLF_BLOCKING),                 "b" })

#ifndef NUMPTY

#define NUMPTY

static inline u8 glock_trace_state(unsigned int state) { switch(state) { case LM_ST_SHARED: return DLM_LOCK_PR; case LM_ST_DEFERRED: return DLM_LOCK_CW; case LM_ST_EXCLUSIVE: return DLM_LOCK_EX; } return DLM_LOCK_NL; }

Contributors

PersonTokensPropCommitsCommitProp
steven whitehousesteven whitehouse38100.00%1100.00%
Total38100.00%1100.00%

#endif /* Section 1 - Locking * * Objectives: * Latency: Remote demote request to state change * Latency: Local lock request to state change * Latency: State change to lock grant * Correctness: Ordering of local lock state vs. I/O requests * Correctness: Responses to remote demote requests */ /* General glock state change (DLM lock request completes) */ TRACE_EVENT(gfs2_glock_state_change, TP_PROTO(const struct gfs2_glock *gl, unsigned int new_state), TP_ARGS(gl, new_state), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( u8, cur_state ) __field( u8, new_state ) __field( u8, dmt_state ) __field( u8, tgt_state ) __field( unsigned long, flags ) ), TP_fast_assign( __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->glnum = gl->gl_name.ln_number; __entry->gltype = gl->gl_name.ln_type; __entry->cur_state = glock_trace_state(gl->gl_state); __entry->new_state = glock_trace_state(new_state); __entry->tgt_state = glock_trace_state(gl->gl_target); __entry->dmt_state = glock_trace_state(gl->gl_demote_state); __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); ), TP_printk("%u,%u glock %d:%lld state %s to %s tgt:%s dmt:%s flags:%s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, glock_trace_name(__entry->cur_state), glock_trace_name(__entry->new_state), glock_trace_name(__entry->tgt_state), glock_trace_name(__entry->dmt_state), show_glock_flags(__entry->flags)) ); /* State change -> unlocked, glock is being deallocated */ TRACE_EVENT(gfs2_glock_put, TP_PROTO(const struct gfs2_glock *gl), TP_ARGS(gl), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( u8, cur_state ) __field( unsigned long, flags ) ), TP_fast_assign( __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->gltype = gl->gl_name.ln_type; __entry->glnum = gl->gl_name.ln_number; __entry->cur_state = glock_trace_state(gl->gl_state); __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); ), TP_printk("%u,%u glock %d:%lld state %s => %s flags:%s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, glock_trace_name(__entry->cur_state), glock_trace_name(DLM_LOCK_IV), show_glock_flags(__entry->flags)) ); /* Callback (local or remote) requesting lock demotion */ TRACE_EVENT(gfs2_demote_rq, TP_PROTO(const struct gfs2_glock *gl, bool remote), TP_ARGS(gl, remote), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( u8, cur_state ) __field( u8, dmt_state ) __field( unsigned long, flags ) __field( bool, remote ) ), TP_fast_assign( __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->gltype = gl->gl_name.ln_type; __entry->glnum = gl->gl_name.ln_number; __entry->cur_state = glock_trace_state(gl->gl_state); __entry->dmt_state = glock_trace_state(gl->gl_demote_state); __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0); __entry->remote = remote; ), TP_printk("%u,%u glock %d:%lld demote %s to %s flags:%s %s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, glock_trace_name(__entry->cur_state), glock_trace_name(__entry->dmt_state), show_glock_flags(__entry->flags), __entry->remote ? "remote" : "local") ); /* Promotion/grant of a glock */ TRACE_EVENT(gfs2_promote, TP_PROTO(const struct gfs2_holder *gh, int first), TP_ARGS(gh, first), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( int, first ) __field( u8, state ) ), TP_fast_assign( __entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->glnum = gh->gh_gl->gl_name.ln_number; __entry->gltype = gh->gh_gl->gl_name.ln_type; __entry->first = first; __entry->state = glock_trace_state(gh->gh_state); ), TP_printk("%u,%u glock %u:%llu promote %s %s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, __entry->first ? "first": "other", glock_trace_name(__entry->state)) ); /* Queue/dequeue a lock request */ TRACE_EVENT(gfs2_glock_queue, TP_PROTO(const struct gfs2_holder *gh, int queue), TP_ARGS(gh, queue), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( int, queue ) __field( u8, state ) ), TP_fast_assign( __entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->glnum = gh->gh_gl->gl_name.ln_number; __entry->gltype = gh->gh_gl->gl_name.ln_type; __entry->queue = queue; __entry->state = glock_trace_state(gh->gh_state); ), TP_printk("%u,%u glock %u:%llu %squeue %s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, __entry->queue ? "" : "de", glock_trace_name(__entry->state)) ); /* DLM sends a reply to GFS2 */ TRACE_EVENT(gfs2_glock_lock_time, TP_PROTO(const struct gfs2_glock *gl, s64 tdiff), TP_ARGS(gl, tdiff), TP_STRUCT__entry( __field( dev_t, dev ) __field( u64, glnum ) __field( u32, gltype ) __field( int, status ) __field( char, flags ) __field( s64, tdiff ) __field( u64, srtt ) __field( u64, srttvar ) __field( u64, srttb ) __field( u64, srttvarb ) __field( u64, sirt ) __field( u64, sirtvar ) __field( u64, dcount ) __field( u64, qcount ) ), TP_fast_assign( __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->glnum = gl->gl_name.ln_number; __entry->gltype = gl->gl_name.ln_type; __entry->status = gl->gl_lksb.sb_status; __entry->flags = gl->gl_lksb.sb_flags; __entry->tdiff = tdiff; __entry->srtt = gl->gl_stats.stats[GFS2_LKS_SRTT]; __entry->srttvar = gl->gl_stats.stats[GFS2_LKS_SRTTVAR]; __entry->srttb = gl->gl_stats.stats[GFS2_LKS_SRTTB]; __entry->srttvarb = gl->gl_stats.stats[GFS2_LKS_SRTTVARB]; __entry->sirt = gl->gl_stats.stats[GFS2_LKS_SIRT]; __entry->sirtvar = gl->gl_stats.stats[GFS2_LKS_SIRTVAR]; __entry->dcount = gl->gl_stats.stats[GFS2_LKS_DCOUNT]; __entry->qcount = gl->gl_stats.stats[GFS2_LKS_QCOUNT]; ), 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", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype, (unsigned long long)__entry->glnum, __entry->status, __entry->flags, (long long)__entry->tdiff, (long long)__entry->srtt, (long long)__entry->srttvar, (long long)__entry->srttb, (long long)__entry->srttvarb, (long long)__entry->sirt, (long long)__entry->sirtvar, (long long)__entry->dcount, (long long)__entry->qcount) ); /* Section 2 - Log/journal * * Objectives: * Latency: Log flush time * Correctness: pin/unpin vs. disk I/O ordering * Performance: Log usage stats */ /* Pin/unpin a block in the log */ TRACE_EVENT(gfs2_pin, TP_PROTO(const struct gfs2_bufdata *bd, int pin), TP_ARGS(bd, pin), TP_STRUCT__entry( __field( dev_t, dev ) __field( int, pin ) __field( u32, len ) __field( sector_t, block ) __field( u64, ino ) ), TP_fast_assign( __entry->dev = bd->bd_gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->pin = pin; __entry->len = bd->bd_bh->b_size; __entry->block = bd->bd_bh->b_blocknr; __entry->ino = bd->bd_gl->gl_name.ln_number; ), TP_printk("%u,%u log %s %llu/%lu inode %llu", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->pin ? "pin" : "unpin", (unsigned long long)__entry->block, (unsigned long)__entry->len, (unsigned long long)__entry->ino) ); /* Flushing the log */ TRACE_EVENT(gfs2_log_flush, TP_PROTO(const struct gfs2_sbd *sdp, int start), TP_ARGS(sdp, start), TP_STRUCT__entry( __field( dev_t, dev ) __field( int, start ) __field( u64, log_seq ) ), TP_fast_assign( __entry->dev = sdp->sd_vfs->s_dev; __entry->start = start; __entry->log_seq = sdp->sd_log_sequence; ), TP_printk("%u,%u log flush %s %llu", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->start ? "start" : "end", (unsigned long long)__entry->log_seq) ); /* Reserving/releasing blocks in the log */ TRACE_EVENT(gfs2_log_blocks, TP_PROTO(const struct gfs2_sbd *sdp, int blocks), TP_ARGS(sdp, blocks), TP_STRUCT__entry( __field( dev_t, dev ) __field( int, blocks ) ), TP_fast_assign( __entry->dev = sdp->sd_vfs->s_dev; __entry->blocks = blocks; ), TP_printk("%u,%u log reserve %d", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->blocks) ); /* Writing back the AIL */ TRACE_EVENT(gfs2_ail_flush, TP_PROTO(const struct gfs2_sbd *sdp, const struct writeback_control *wbc, int start), TP_ARGS(sdp, wbc, start), TP_STRUCT__entry( __field( dev_t, dev ) __field( int, start ) __field( int, sync_mode ) __field( long, nr_to_write ) ), TP_fast_assign( __entry->dev = sdp->sd_vfs->s_dev; __entry->start = start; __entry->sync_mode = wbc->sync_mode; __entry->nr_to_write = wbc->nr_to_write; ), TP_printk("%u,%u ail flush %s %s %ld", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->start ? "start" : "end", __entry->sync_mode == WB_SYNC_ALL ? "all" : "none", __entry->nr_to_write) ); /* Section 3 - bmap * * Objectives: * Latency: Bmap request time * Performance: Block allocator tracing * Correctness: Test of disard generation vs. blocks allocated */ /* Map an extent of blocks, possibly a new allocation */ TRACE_EVENT(gfs2_bmap, TP_PROTO(const struct gfs2_inode *ip, const struct buffer_head *bh, sector_t lblock, int create, int errno), TP_ARGS(ip, bh, lblock, create, errno), TP_STRUCT__entry( __field( dev_t, dev ) __field( sector_t, lblock ) __field( sector_t, pblock ) __field( u64, inum ) __field( unsigned long, state ) __field( u32, len ) __field( int, create ) __field( int, errno ) ), TP_fast_assign( __entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev; __entry->lblock = lblock; __entry->pblock = buffer_mapped(bh) ? bh->b_blocknr : 0; __entry->inum = ip->i_no_addr; __entry->state = bh->b_state; __entry->len = bh->b_size; __entry->create = create; __entry->errno = errno; ), TP_printk("%u,%u bmap %llu map %llu/%lu to %llu flags:%08lx %s %d", MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long long)__entry->inum, (unsigned long long)__entry->lblock, (unsigned long)__entry->len, (unsigned long long)__entry->pblock, __entry->state, __entry->create ? "create " : "nocreate", __entry->errno) ); /* 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_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_reserved = rgd->rd_reserved; ), TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rr:%lu", 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, (unsigned long)__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_reserved ) __field( u64, inum ) __field( u64, start ) __field( u32, free ) __field( u8, func ) ), TP_fast_assign( __entry->dev = rs->rs_rbm.rgd->rd_sbd->sd_vfs->s_dev; __entry->rd_addr = rs->rs_rbm.rgd->rd_addr; __entry->rd_free_clone = rs->rs_rbm.rgd->rd_free_clone; __entry->rd_reserved = rs->rs_rbm.rgd->rd_reserved; __entry->inum = rs->rs_inum; __entry->start = gfs2_rbm_to_block(&rs->rs_rbm); __entry->free = rs->rs_free; __entry->func = func; ), TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%lu rr:%lu %s f:%lu", MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long long)__entry->inum, (unsigned long long)__entry->start, (unsigned long long)__entry->rd_addr, (unsigned long)__entry->rd_free_clone, (unsigned long)__entry->rd_reserved, rs_func_name(__entry->func), (unsigned long)__entry->free) ); #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>

Overall Contributors

PersonTokensPropCommitsCommitProp
steven whitehousesteven whitehouse38485.33%654.55%
robert s. petersonrobert s. peterson5412.00%327.27%
li zefanli zefan112.44%19.09%
ben hutchingsben hutchings10.22%19.09%
Total450100.00%11100.00%
Directory: fs/gfs2
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