probe::nfs.fop.sendfile — NFS client send file operation
nfs.fop.sendfile
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
inoinode number
cache_validcache related bit mask flag
pposcurrent position of file
devdevice identifier
countread bytes