probe::nfs.fop.read_iter — NFS client read_iter file operation
nfs.fop.read_iter
cache_validcache related bit mask flag
devdevice identifier
file_namefile name
parent_nameparent dir name
countread bytes
poscurrent position of file
inoinode number
attrtimeohow long the cached information is assumed to be valid. We need to revalidate the cached attrs for this inode if jiffies - read_cache_jiffies > attrtimeo.
cache_timewhen we started read-caching this inode