Nfs client mmap operation
nfs.fop.mmap
vm_end
the first byte after end address within vm_mm
vm_flag
vm flags
file_name
file name
parent_name
parent dir name
cache_time
when we started read-caching this inode
vm_start
start address within vm_mm
cache_valid
cache related bit mask flag
buf
the address of buf in user space
ino
inode number
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.
dev
device identifier