diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-20 11:26:17 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-22 08:58:18 -0400 |
| commit | 6e0d0be715fe041fc7121b0b44cde3015d1cc846 (patch) | |
| tree | 406e7b0a1494a330d4cb4a1b5855af94c95e966a /fs/nfs/dir.c | |
| parent | 1472b83eae0bf09ab76ebcb1373dbd210e97f911 (diff) | |
NFS: Add event tracing for generic NFS lookups
Add tracepoints for lookup, lookup_revalidate and atomic_open
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 29d5463dcd65..2263a6ba36af 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1102,7 +1102,9 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags) if (IS_ERR(label)) goto out_error; + trace_nfs_lookup_revalidate_enter(dir, dentry, flags); error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label); + trace_nfs_lookup_revalidate_exit(dir, dentry, flags, error); if (error) goto out_bad; if (nfs_compare_fh(NFS_FH(inode), fhandle)) @@ -1315,6 +1317,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in parent = dentry->d_parent; /* Protect against concurrent sillydeletes */ + trace_nfs_lookup_enter(dir, dentry, flags); nfs_block_sillyrename(parent); error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label); if (error == -ENOENT) @@ -1341,6 +1344,7 @@ no_entry: nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); out_unblock_sillyrename: nfs_unblock_sillyrename(parent); + trace_nfs_lookup_exit(dir, dentry, flags, error); nfs4_label_free(label); out: nfs_free_fattr(fattr); @@ -1451,12 +1455,14 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry, if (IS_ERR(ctx)) goto out; + trace_nfs_atomic_open_enter(dir, ctx, open_flags); nfs_block_sillyrename(dentry->d_parent); inode = NFS_PROTO(dir)->open_context(dir, ctx, open_flags, &attr); nfs_unblock_sillyrename(dentry->d_parent); if (IS_ERR(inode)) { put_nfs_open_context(ctx); err = PTR_ERR(inode); + trace_nfs_atomic_open_exit(dir, ctx, open_flags, err); switch (err) { case -ENOENT: d_drop(dentry); @@ -1477,6 +1483,7 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry, } err = nfs_finish_open(ctx, ctx->dentry, file, open_flags, opened); + trace_nfs_atomic_open_exit(dir, ctx, open_flags, err); out: return err; |