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