PROBE::NFS.AOP.W(3stap) Network File Storage Tapsets PROBE::NFS.AOP.W(3stap)

probe::nfs.aop.writepage - NFS client writing a mapped page to the NFS server

nfs.aop.writepage

i_flag

file flags

dev

device identifier

i_state

inode state flags

wsize

write size

__page

the address of page

page_index

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

ino

inode number

i_size

file length in bytes

for_reclaim

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

sb_flag

super block flags

for_kupdate

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

size

number of pages to be written in this execution

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

tapset::nfs(3stap)

November 2023 SystemTap Tapset Reference