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NFSv4: Add tracepoints for debugging delegations

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Set up tracepoints to track when delegations are set, reclaimed,
returned by the client, or recalled by the server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-08-13 10:36:56 -04:00
parent fbc6f7c233
commit ca8acf8d84
4 changed files with 79 additions and 0 deletions
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72
fs/nfs/nfs4trace.h
View file

@ -411,6 +411,76 @@ DEFINE_NFS4_LOCK_EVENT(nfs4_lock_reclaim);
DEFINE_NFS4_LOCK_EVENT(nfs4_lock_expired);
DEFINE_NFS4_LOCK_EVENT(nfs4_unlock);
DECLARE_EVENT_CLASS(nfs4_set_delegation_event,
TP_PROTO(
const struct inode *inode,
fmode_t fmode
),
TP_ARGS(inode, fmode),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(u32, fhandle)
__field(u64, fileid)
__field(unsigned int, fmode)
),
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->fileid = NFS_FILEID(inode);
__entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));
__entry->fmode = (__force unsigned int)fmode;
),
TP_printk(
"fmode=%s fileid=%02x:%02x:%llu fhandle=0x%08x",
show_fmode_flags(__entry->fmode),
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->fileid,
__entry->fhandle
)
);
#define DEFINE_NFS4_SET_DELEGATION_EVENT(name) \
DEFINE_EVENT(nfs4_set_delegation_event, name, \
TP_PROTO( \
const struct inode *inode, \
fmode_t fmode \
), \
TP_ARGS(inode, fmode))
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_set_delegation);
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_reclaim_delegation);
TRACE_EVENT(nfs4_delegreturn_exit,
TP_PROTO(
const struct nfs4_delegreturnargs *args,
const struct nfs4_delegreturnres *res,
int error
),
TP_ARGS(args, res, error),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(u32, fhandle)
__field(int, error)
),
TP_fast_assign(
__entry->dev = res->server->s_dev;
__entry->fhandle = nfs_fhandle_hash(args->fhandle);
__entry->error = error;
),
TP_printk(
"error=%d (%s) dev=%02x:%02x fhandle=0x%08x",
__entry->error,
show_nfsv4_errors(__entry->error),
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->fhandle
)
);
DECLARE_EVENT_CLASS(nfs4_lookup_event,
TP_PROTO(
const struct inode *dir,
@ -554,6 +624,8 @@ DEFINE_NFS4_INODE_EVENT(nfs4_set_acl);
DEFINE_NFS4_INODE_EVENT(nfs4_get_security_label);
DEFINE_NFS4_INODE_EVENT(nfs4_set_security_label);
#endif /* CONFIG_NFS_V4_SECURITY_LABEL */
DEFINE_NFS4_INODE_EVENT(nfs4_recall_delegation);
DEFINE_NFS4_INODE_EVENT(nfs4_delegreturn);
#endif /* _TRACE_NFS4_H */