table of contents
| PROBE::NFS.AOP.W(3stap) | Network File Storage Tapsets | PROBE::NFS.AOP.W(3stap) |
NAME¶
probe::nfs.aop.write_begin - NFS client begin to write data
SYNOPSIS¶
nfs.aop.write_begin
VALUES¶
__page
the address of page
ino
inode number
dev
device identifier
page_index
offset within mapping, can used a page identifier and
position identifier in the page frame
offset
start address of this write operation
size
write bytes
to
end address of this write operation
DESCRIPTION¶
Occurs when write operation occurs on nfs. It prepare a page for writing, look for a request corresponding to the page. If there is one, and it belongs to another file, it flush it out before it tries to copy anything into the page. Also do the same if it finds a request from an existing dropped page
SEE ALSO0¶
tapset::nfs(3stap)
| October 2018 | SystemTap Tapset Reference |