I had sent this patch yesterday, but for some reason it didn't reach xfs list,
sending again.
Output the caller of xfs_log_force might be useful when tracing log checkpoint
problems without the need to build kernel with DEBUG.
Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
---
fs/xfs/xfs_log.c | 4 ++--
fs/xfs/xfs_trace.h | 10 ++++++----
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index b49ccf5..8c08015b 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -3378,7 +3378,7 @@ xfs_log_force(
{
int error;
- trace_xfs_log_force(mp, 0);
+ trace_xfs_log_force(mp, 0, _RET_IP_);
error = _xfs_log_force(mp, flags, NULL);
if (error)
xfs_warn(mp, "%s: error %d returned.", __func__, error);
@@ -3527,7 +3527,7 @@ xfs_log_force_lsn(
{
int error;
- trace_xfs_log_force(mp, lsn);
+ trace_xfs_log_force(mp, lsn, _RET_IP_);
error = _xfs_log_force_lsn(mp, lsn, flags, NULL);
if (error)
xfs_warn(mp, "%s: error %d returned.", __func__, error);
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index c8d5842..384bb17 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -1053,19 +1053,21 @@ DECLARE_EVENT_CLASS(xfs_log_item_class,
)
TRACE_EVENT(xfs_log_force,
- TP_PROTO(struct xfs_mount *mp, xfs_lsn_t lsn),
- TP_ARGS(mp, lsn),
+ TP_PROTO(struct xfs_mount *mp, xfs_lsn_t lsn, unsigned long caller_ip),
+ TP_ARGS(mp, lsn, caller_ip),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_lsn_t, lsn)
+ __field(unsigned long, caller_ip)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->lsn = lsn;
+ __entry->caller_ip = caller_ip;
),
- TP_printk("dev %d:%d lsn 0x%llx",
+ TP_printk("dev %d:%d lsn 0x%llx caller %ps",
MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->lsn)
+ __entry->lsn, (void *)__entry->caller_ip)
)
#define DEFINE_LOG_ITEM_EVENT(name) \
--
2.4.3
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