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NFSv4: Add a tracepoint to document open stateid updates

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Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust
2017-11-06 15:28:02 -05:00
committed by Anna Schumaker
parent c9399f21c2
commit ad9e02dc02
2 changed files with 5 additions and 0 deletions
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3
fs/nfs/nfs4proc.c
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@@ -1481,6 +1481,7 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
nfs4_stateid_copy(&state->stateid, stateid); nfs4_stateid_copy(&state->stateid, stateid);
nfs4_stateid_copy(&state->open_stateid, stateid); nfs4_stateid_copy(&state->open_stateid, stateid);
trace_nfs4_open_stateid_update(state->inode, stateid, 0);
out: out:
nfs_state_log_update_open_stateid(state); nfs_state_log_update_open_stateid(state);
} }
@@ -1524,6 +1525,7 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
write_sequnlock(&state->seqlock); write_sequnlock(&state->seqlock);
spin_unlock(&state->owner->so_lock); spin_unlock(&state->owner->so_lock);
rcu_read_unlock(); rcu_read_unlock();
trace_nfs4_open_stateid_update_wait(state->inode, stateid, 0);
if (!signal_pending(current)) { if (!signal_pending(current)) {
if (schedule_timeout(5*HZ) == 0) if (schedule_timeout(5*HZ) == 0)
status = -EAGAIN; status = -EAGAIN;
@@ -1545,6 +1547,7 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state,
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
nfs4_stateid_copy(&state->stateid, stateid); nfs4_stateid_copy(&state->stateid, stateid);
nfs4_stateid_copy(&state->open_stateid, stateid); nfs4_stateid_copy(&state->open_stateid, stateid);
trace_nfs4_open_stateid_update(state->inode, stateid, status);
nfs_state_log_update_open_stateid(state); nfs_state_log_update_open_stateid(state);
} }

2
fs/nfs/nfs4trace.h
View File

@@ -1061,6 +1061,8 @@ DECLARE_EVENT_CLASS(nfs4_inode_stateid_event,
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_setattr); DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_setattr);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_delegreturn); DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_delegreturn);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update);
DEFINE_NFS4_INODE_STATEID_EVENT(nfs4_open_stateid_update_wait);
DECLARE_EVENT_CLASS(nfs4_getattr_event, DECLARE_EVENT_CLASS(nfs4_getattr_event,
TP_PROTO( TP_PROTO(