probe::nfs.fop.sendfile — NFS client send file operation
nfs.fop.sendfile
pposcurrent position of file
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.
countread bytes
cache_validcache related bit mask flag
devdevice identifier
cache_timewhen we started read-caching this inode
inoinode number