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probe::nfs.aop.write_begin
Name
probe::nfs.aop.write_begin — NFS client begin to write data
Synopsis
nfs.aop.write_begin
Values
__page- the address of page
page_index- offset within mapping, can used a page identifier and position identifier in the page frame
size- write bytes
to- end address of this write operation
ino- inode number
offset- start address of this write operation
dev- device identifier
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
