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Commit 8b0ad3d4 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFS: Add tracepoints for debugging generic file create events 



Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6e0d0be7

fs/nfs/dir.c

+2 −0
Original line number Diff line number Diff line
@@ -1612,7 +1612,9 @@ int nfs_create(struct inode *dir, struct dentry *dentry, 
	attr.ia_mode = mode;

	attr.ia_valid = ATTR_MODE;



	trace_nfs_create_enter(dir, dentry, open_flags);

	error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags);

	trace_nfs_create_exit(dir, dentry, open_flags, error);

	if (error != 0)

		goto out_err;

	return 0;

fs/nfs/nfstrace.h

+70 −0
Original line number Diff line number Diff line
@@ -352,6 +352,76 @@ TRACE_EVENT(nfs_atomic_open_exit, 
		)

);



TRACE_EVENT(nfs_create_enter,

		TP_PROTO(

			const struct inode *dir,

			const struct dentry *dentry,

			unsigned int flags

		),



		TP_ARGS(dir, dentry, flags),



		TP_STRUCT__entry(

			__field(unsigned int, flags)

			__field(dev_t, dev)

			__field(u64, dir)

			__string(name, dentry->d_name.name)

		),



		TP_fast_assign(

			__entry->dev = dir->i_sb->s_dev;

			__entry->dir = NFS_FILEID(dir);

			__entry->flags = flags;

			__assign_str(name, dentry->d_name.name);

		),



		TP_printk(

			"flags=%u (%s) name=%02x:%02x:%llu/%s",

			__entry->flags,

			show_open_flags(__entry->flags),

			MAJOR(__entry->dev), MINOR(__entry->dev),

			(unsigned long long)__entry->dir,

			__get_str(name)

		)

);



TRACE_EVENT(nfs_create_exit,

		TP_PROTO(

			const struct inode *dir,

			const struct dentry *dentry,

			unsigned int flags,

			int error

		),



		TP_ARGS(dir, dentry, flags, error),



		TP_STRUCT__entry(

			__field(int, error)

			__field(unsigned int, flags)

			__field(dev_t, dev)

			__field(u64, dir)

			__string(name, dentry->d_name.name)

		),



		TP_fast_assign(

			__entry->error = error;

			__entry->dev = dir->i_sb->s_dev;

			__entry->dir = NFS_FILEID(dir);

			__entry->flags = flags;

			__assign_str(name, dentry->d_name.name);

		),



		TP_printk(

			"error=%d flags=%u (%s) name=%02x:%02x:%llu/%s",

			__entry->error,

			__entry->flags,

			show_open_flags(__entry->flags),

			MAJOR(__entry->dev), MINOR(__entry->dev),

			(unsigned long long)__entry->dir,

			__get_str(name)

		)

);



#endif /* _TRACE_NFS_H */



#undef TRACE_INCLUDE_PATH