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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-08-20 20:07:54 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-08-25 14:40:05 -0400
commit7cd148610af9312aa6454395fe174ebfe9496aa1 (patch)
treecd47e72f5cea6cb2083f9404a47df999b0d8707a /fs/nfs
parent6a463beb9a433d91f3eaf85c2f0ca0aeddf3e0ab (diff)
NFSv4: Add a tracepoint for CB_GETATTR
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/callback_proc.c6
-rw-r--r--fs/nfs/nfs4trace.h59
2 files changed, 64 insertions, 1 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 624bef79ba7c..07258d269e5a 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -40,8 +40,11 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR));
inode = nfs_delegation_find_inode(cps->clp, &args->fh);
- if (inode == NULL)
+ if (inode == NULL) {
+ trace_nfs4_cb_getattr(cps->clp, &args->fh, inode,
+ -ntohl(res->status));
goto out;
+ }
nfsi = NFS_I(inode);
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
@@ -60,6 +63,7 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
res->status = 0;
out_iput:
rcu_read_unlock();
+ trace_nfs4_cb_getattr(cps->clp, &args->fh, inode, -ntohl(res->status));
iput(inode);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res->status));
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 0b67f7825d00..1aa096b665dc 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -884,6 +884,65 @@ DEFINE_NFS4_GETATTR_EVENT(nfs4_getattr);
DEFINE_NFS4_GETATTR_EVENT(nfs4_lookup_root);
DEFINE_NFS4_GETATTR_EVENT(nfs4_fsinfo);
+DECLARE_EVENT_CLASS(nfs4_inode_callback_event,
+ TP_PROTO(
+ const struct nfs_client *clp,
+ const struct nfs_fh *fhandle,
+ const struct inode *inode,
+ int error
+ ),
+
+ TP_ARGS(clp, fhandle, inode, error),
+
+ TP_STRUCT__entry(
+ __field(int, error)
+ __field(dev_t, dev)
+ __field(u32, fhandle)
+ __field(u64, fileid)
+ __string(dstaddr, clp ?
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_ADDR) : "unknown")
+ ),
+
+ TP_fast_assign(
+ __entry->error = error;
+ __entry->fhandle = nfs_fhandle_hash(fhandle);
+ if (inode != NULL) {
+ __entry->fileid = NFS_FILEID(inode);
+ __entry->dev = inode->i_sb->s_dev;
+ } else {
+ __entry->fileid = 0;
+ __entry->dev = 0;
+ }
+ __assign_str(dstaddr, clp ?
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_ADDR) : "unknown")
+ ),
+
+ TP_printk(
+ "error=%d (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
+ "dstaddr=%s",
+ __entry->error,
+ show_nfsv4_errors(__entry->error),
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long long)__entry->fileid,
+ __entry->fhandle,
+ __get_str(dstaddr)
+ )
+);
+
+#define DEFINE_NFS4_INODE_CALLBACK_EVENT(name) \
+ DEFINE_EVENT(nfs4_inode_callback_event, name, \
+ TP_PROTO( \
+ const struct nfs_client *clp, \
+ const struct nfs_fh *fhandle, \
+ const struct inode *inode, \
+ int error \
+ ), \
+ TP_ARGS(clp, fhandle, inode, error))
+DEFINE_NFS4_INODE_CALLBACK_EVENT(nfs4_cb_getattr);
+
+
DECLARE_EVENT_CLASS(nfs4_idmap_event,
TP_PROTO(
const char *name,