Provided by: systemtap-doc_4.6-2_amd64 

NAME
probe::nfs.aop.writepage - NFS client writing a mapped page to the NFS server
SYNOPSIS
nfs.aop.writepage
VALUES
i_state
inode state flags
size
number of pages to be written in this execution
wsize
write size
dev
device identifier
i_size
file length in bytes
ino
inode number
for_kupdate
a flag of writeback_control, indicates if it's a kupdate writeback
__page
the address of page
sb_flag
super block flags
i_flag
file flags
page_index
offset within mapping, can used a page identifier and position identifier in the page frame
for_reclaim
a flag of writeback_control, indicates if it's invoked from the page allocator
DESCRIPTION
The priority of wb is decided by the flags for_reclaim and for_kupdate.
SEE ALSO
tapset::nfs(3stap)
SystemTap Tapset Reference November 2021 PROBE::NFS.AOP.W(3stap)