probe::nfs.fop.read_iter — NFS client read_iter file operation
nfs.fop.read_iter
dev
device identifier
ino
inode number
count
read bytes
cache_valid
cache related bit mask flag
cache_time
when we started read-caching this inode
file_name
file name
attrtimeo
how 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.
pos
current position of file
parent_name
parent dir name