Commit 85b0b1f2 authored by Jeff Layton's avatar Jeff Layton Committed by Chuck Lever
Browse files

nfsd: add nfsd_vfs_create tracepoints 



Observe the start of file and directory creation for all NFS
versions.

Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent a5256e68

fs/nfsd/nfs3proc.c

+3 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include "xdr3.h"

#include "vfs.h"

#include "filecache.h"

#include "trace.h"



#define NFSDDBG_FACILITY		NFSDDBG_PROC
@@ -266,6 +267,8 @@ nfsd3_create_file(struct svc_rqst *rqstp, struct svc_fh *fhp, 
	__be32 status;

	int host_err;



	trace_nfsd_vfs_create(rqstp, fhp, S_IFREG, argp->name, argp->len);



	if (isdotent(argp->name, argp->len))

		return nfserr_exist;

	if (!(iap->ia_valid & ATTR_MODE))

fs/nfsd/trace.h

+27 −0
Original line number Diff line number Diff line
@@ -2417,6 +2417,33 @@ TRACE_EVENT(nfsd_vfs_lookup, 
	)

);



TRACE_EVENT(nfsd_vfs_create,

	TP_PROTO(

		const struct svc_rqst *rqstp,

		const struct svc_fh *fhp,

		umode_t type,

		const char *name,

		unsigned int len

	),

	TP_ARGS(rqstp, fhp, type, name, len),

	TP_STRUCT__entry(

		NFSD_TRACE_PROC_CALL_FIELDS(rqstp)

		__field(u32, fh_hash)

		__field(umode_t, type)

		__string_len(name, name, len)

	),

	TP_fast_assign(

		NFSD_TRACE_PROC_CALL_ASSIGNMENTS(rqstp);

		__entry->fh_hash = knfsd_fh_hash(&fhp->fh_handle);

		__entry->type = type;

		__assign_str(name);

	),

	TP_printk("xid=0x%08x fh_hash=0x%08x type=%s name=%s",

		__entry->xid, __entry->fh_hash,

		show_fs_file_type(__entry->type), __get_str(name)

	)

);



#endif /* _NFSD_TRACE_H */



#undef TRACE_INCLUDE_PATH

fs/nfsd/vfs.c

+2 −0
Original line number Diff line number Diff line
@@ -1549,6 +1549,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, 
	__be32		err;

	int		host_err;



	trace_nfsd_vfs_create(rqstp, fhp, type, fname, flen);



	if (isdotent(fname, flen))

		return nfserr_exist;