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Brooklyn/fs/gfs2/trace_gfs2.h
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2022-03-15 21:13:23 +05:00

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/* SPDX-License-Identifier: GPL-2.0 */
#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 <linux/iomap.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_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;
}
#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, u32 flags),
TP_ARGS(sdp, start, flags),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( int, start )
__field( u64, log_seq )
__field( u32, flags )
),
TP_fast_assign(
__entry->dev = sdp->sd_vfs->s_dev;
__entry->start = start;
__entry->log_seq = sdp->sd_log_sequence;
__entry->flags = flags;
),
TP_printk("%u,%u log flush %s %llu %llx",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->start ? "start" : "end",
(unsigned long long)__entry->log_seq,
(unsigned long long)__entry->flags)
);
/* 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 )
__field( int, blks_free )
),
TP_fast_assign(
__entry->dev = sdp->sd_vfs->s_dev;
__entry->blocks = blocks;
__entry->blks_free = atomic_read(&sdp->sd_log_blks_free);
),
TP_printk("%u,%u log reserve %d %d", MAJOR(__entry->dev),
MINOR(__entry->dev), __entry->blocks, __entry->blks_free)
);
/* 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)
);
TRACE_EVENT(gfs2_iomap_start,
TP_PROTO(const struct gfs2_inode *ip, loff_t pos, ssize_t length,
u16 flags),
TP_ARGS(ip, pos, length, flags),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( u64, inum )
__field( loff_t, pos )
__field( ssize_t, length )
__field( u16, flags )
),
TP_fast_assign(
__entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
__entry->inum = ip->i_no_addr;
__entry->pos = pos;
__entry->length = length;
__entry->flags = flags;
),
TP_printk("%u,%u bmap %llu iomap start %llu/%lu flags:%08x",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->inum,
(unsigned long long)__entry->pos,
(unsigned long)__entry->length, (u16)__entry->flags)
);
TRACE_EVENT(gfs2_iomap_end,
TP_PROTO(const struct gfs2_inode *ip, struct iomap *iomap, int ret),
TP_ARGS(ip, iomap, ret),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( u64, inum )
__field( loff_t, offset )
__field( ssize_t, length )
__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>
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