#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 "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" }) #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; ), 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; ), 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; ), 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)) ); /* 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) ); /* 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>