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xfs: add AIL pushing tracepoints 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2011-10-11 15:14:11 +00:00 committed by Alex Elder
parent 2900b33999
commit 9e4c109ac8
2 changed files with 45 additions and 0 deletions
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37
fs/xfs/xfs_trace.h
View File

@ -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),

8
fs/xfs/xfs_trans_ail.c
View File

@ -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;