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.
devdevice identifier
inoinode number
cache_timewhen we started read-caching this inode
countread bytes
cache_validcache related bit mask flag