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xfs: Add caller function output to xfs_log_force tracepoint

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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@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Carlos Maiolino 2016-04-06 09:46:30 +10:00 committed by Dave Chinner
parent f55532a0c0
commit 9f27889f3a
2 changed files with 8 additions and 6 deletions
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4
fs/xfs/xfs_log.c
View File

@ -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);

10
fs/xfs/xfs_trace.h
View File

@ -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) \