probe::nfs.aop.writepage.3stap man page

probe::nfs.aop.writepage ā€” NFS client writing a mapped page to the NFS server

Synopsis

nfs.aop.writepage 

Values

__page

the address of page

dev

device identifier

i_size

file length in bytes

ino

inode number

page_index

offset within mapping, can used a page identifier and position identifier in the page frame

i_flag

file flags

wsize

write size

sb_flag

super block flags

i_state

inode state flags

size

number of pages to be written in this execution

for_reclaim

a flag of writeback_control, indicates if it's invoked from the page allocator

for_kupdate

a flag of writeback_control, indicates if it's a kupdate writeback

Description

The priority of wb is decided by the flags for_reclaim and for_kupdate.

See Also0

tapset::nfs(3stap)

Info

October 2017 SystemTap Tapset Reference Network File Storage Tapsets