497 lines
13 KiB
C
497 lines
13 KiB
C
#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"
|
|
|
|
#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 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;
|
|
}
|
|
#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_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_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),
|
|
|
|
TP_ARGS(gl),
|
|
|
|
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 )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->dev = gl->gl_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);
|
|
),
|
|
|
|
TP_printk("%u,%u glock %d:%lld demote %s to %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->dmt_state),
|
|
show_glock_flags(__entry->flags))
|
|
|
|
);
|
|
|
|
/* 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_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_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( s64, srtt )
|
|
__field( s64, srttvar )
|
|
__field( s64, srttb )
|
|
__field( s64, srttvarb )
|
|
__field( s64, sirt )
|
|
__field( s64, sirtvar )
|
|
__field( s64, dcount )
|
|
__field( s64, qcount )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->dev = gl->gl_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_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_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, u64 block, unsigned len,
|
|
u8 block_state),
|
|
|
|
TP_ARGS(ip, block, len, block_state),
|
|
|
|
TP_STRUCT__entry(
|
|
__field( dev_t, dev )
|
|
__field( u64, start )
|
|
__field( u64, inum )
|
|
__field( u32, len )
|
|
__field( u8, block_state )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->dev = ip->i_gl->gl_sbd->sd_vfs->s_dev;
|
|
__entry->start = block;
|
|
__entry->inum = ip->i_no_addr;
|
|
__entry->len = len;
|
|
__entry->block_state = block_state;
|
|
),
|
|
|
|
TP_printk("%u,%u bmap %llu alloc %llu/%lu %s",
|
|
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))
|
|
);
|
|
|
|
#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>
|
|
|