With this we can see the dentry -> inode linkage that's being revalidated. A fileid of 0 means "negative dentry". Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- fs/nfs/nfstrace.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index 8ad1bed09295..de3adc4a2ce0 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -400,6 +400,7 @@ DECLARE_EVENT_CLASS(nfs_lookup_event, __field(unsigned long, flags) __field(dev_t, dev) __field(u64, dir) + __field(u64, fileid) __string(name, dentry->d_name.name) ), @@ -407,16 +408,18 @@ DECLARE_EVENT_CLASS(nfs_lookup_event, __entry->dev = dir->i_sb->s_dev; __entry->dir = NFS_FILEID(dir); __entry->flags = flags; + __entry->fileid = d_is_negative(dentry) ? 0 : NFS_FILEID(d_inode(dentry)); __assign_str(name, dentry->d_name.name); ), TP_printk( - "flags=0x%lx (%s) name=%02x:%02x:%llu/%s", + "flags=0x%lx (%s) name=%02x:%02x:%llu/%s fileid=%llu", __entry->flags, show_fs_lookup_flags(__entry->flags), MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long long)__entry->dir, - __get_str(name) + __get_str(name), + __entry->fileid ) ); @@ -444,6 +447,7 @@ DECLARE_EVENT_CLASS(nfs_lookup_event_done, __field(unsigned long, flags) __field(dev_t, dev) __field(u64, dir) + __field(u64, fileid) __string(name, dentry->d_name.name) ), @@ -452,17 +456,19 @@ DECLARE_EVENT_CLASS(nfs_lookup_event_done, __entry->dir = NFS_FILEID(dir); __entry->error = error < 0 ? -error : 0; __entry->flags = flags; + __entry->fileid = d_is_negative(dentry) ? 0 : NFS_FILEID(d_inode(dentry)); __assign_str(name, dentry->d_name.name); ), TP_printk( - "error=%ld (%s) flags=0x%lx (%s) name=%02x:%02x:%llu/%s", + "error=%ld (%s) flags=0x%lx (%s) name=%02x:%02x:%llu/%s fileid=%llu", -__entry->error, show_nfs_status(__entry->error), __entry->flags, show_fs_lookup_flags(__entry->flags), MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long long)__entry->dir, - __get_str(name) + __get_str(name), + __entry->fileid ) ); -- 2.41.0
