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Commit 9e4c109a authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Alex Elder
Browse files

xfs: add AIL pushing tracepoints 



Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
parent 2900b339

fs/xfs/xfs_trace.h

+37 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ struct xfs_buf_log_item; 
struct xfs_da_args;

struct xfs_da_node_entry;

struct xfs_dquot;

struct xfs_log_item;

struct xlog_ticket;

struct log;

struct xlog_recover;
@@ -853,6 +854,42 @@ DEFINE_LOGGRANT_EVENT(xfs_log_ungrant_enter); 
DEFINE_LOGGRANT_EVENT(xfs_log_ungrant_exit);

DEFINE_LOGGRANT_EVENT(xfs_log_ungrant_sub);



DECLARE_EVENT_CLASS(xfs_log_item_class,

	TP_PROTO(struct xfs_log_item *lip),

	TP_ARGS(lip),

	TP_STRUCT__entry(

		__field(dev_t, dev)

		__field(void *, lip)

		__field(uint, type)

		__field(uint, flags)

		__field(xfs_lsn_t, lsn)

	),

	TP_fast_assign(

		__entry->dev = lip->li_mountp->m_super->s_dev;

		__entry->lip = lip;

		__entry->type = lip->li_type;

		__entry->flags = lip->li_flags;

		__entry->lsn = lip->li_lsn;

	),

	TP_printk("dev %d:%d lip 0x%p lsn %d/%d type %s flags %s",

		  MAJOR(__entry->dev), MINOR(__entry->dev),

		  __entry->lip,

		  CYCLE_LSN(__entry->lsn), BLOCK_LSN(__entry->lsn),

		  __print_symbolic(__entry->type, XFS_LI_TYPE_DESC),

		  __print_flags(__entry->flags, "|", XFS_LI_FLAGS))

)



#define DEFINE_LOG_ITEM_EVENT(name) \

DEFINE_EVENT(xfs_log_item_class, name, \

	TP_PROTO(struct xfs_log_item *lip), \

	TP_ARGS(lip))

DEFINE_LOG_ITEM_EVENT(xfs_ail_push);

DEFINE_LOG_ITEM_EVENT(xfs_ail_pushbuf);

DEFINE_LOG_ITEM_EVENT(xfs_ail_pushbuf_pinned);

DEFINE_LOG_ITEM_EVENT(xfs_ail_pinned);

DEFINE_LOG_ITEM_EVENT(xfs_ail_locked);





DECLARE_EVENT_CLASS(xfs_file_class,

	TP_PROTO(struct xfs_inode *ip, size_t count, loff_t offset, int flags),

	TP_ARGS(ip, count, offset, flags),

fs/xfs/xfs_trans_ail.c

+8 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include "xfs_ag.h"

#include "xfs_mount.h"

#include "xfs_trans_priv.h"

#include "xfs_trace.h"

#include "xfs_error.h"



#ifdef DEBUG
@@ -425,14 +426,18 @@ xfsaild_push( 
		switch (lock_result) {

		case XFS_ITEM_SUCCESS:

			XFS_STATS_INC(xs_push_ail_success);

			trace_xfs_ail_push(lip);



			IOP_PUSH(lip);

			ailp->xa_last_pushed_lsn = lsn;

			break;



		case XFS_ITEM_PUSHBUF:

			XFS_STATS_INC(xs_push_ail_pushbuf);

			trace_xfs_ail_pushbuf(lip);



			if (!IOP_PUSHBUF(lip)) {

				trace_xfs_ail_pushbuf_pinned(lip);

				stuck++;

				ailp->xa_log_flush++;

			} else {
@@ -443,12 +448,15 @@ xfsaild_push( 


		case XFS_ITEM_PINNED:

			XFS_STATS_INC(xs_push_ail_pinned);

			trace_xfs_ail_pinned(lip);



			stuck++;

			ailp->xa_log_flush++;

			break;



		case XFS_ITEM_LOCKED:

			XFS_STATS_INC(xs_push_ail_locked);

			trace_xfs_ail_locked(lip);

			stuck++;

			break;