Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
probe::nfs.aop.writepages - NFS client writing several dirty pages to the NFS server
SYNOPSIS
nfs.aop.writepages
VALUES
wsize
write size
nr_to_write
number of pages attempted to be written in this execution
size
number of pages attempted to be written in this execution
for_reclaim
a flag of writeback_control, indicates if it's invoked from the page allocator
dev
device identifier
for_kupdate
a flag of writeback_control, indicates if it's a kupdate writeback
ino
inode number
wpages
write size (in pages)
DESCRIPTION
The priority of wb is decided by the flags for_reclaim and for_kupdate.
SEE ALSO
tapset::nfs(3stap)
SystemTap Tapset Reference April 2016 PROBE::NFS.AOP.W(3stap)