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

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

```
probe nfs.aop.writepage {}
```

# [VALUES](#VALUES)

*i\_size*

file length in bytes

*ino*

inode number

*sb\_flag*

super block flags

*for\_kupdate*

a flag of writeback\_control, indicates if it's a kupdate writeback

*for\_reclaim*

a flag of writeback\_control, indicates if it's invoked from the page allocator

*size*

number of pages to be written in this execution

*page\_index*

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

*i\_flag*

file flags

*\_\_page*

the address of page

*i\_state*

inode state flags

*dev*

device identifier

*wsize*

write size

# [DESCRIPTION](#DESCRIPTION)

The priority of wb is decided by the flags *for\_reclaim* and *for\_kupdate*.

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::nfs*(3stap)](/man/enterprise-packages/systemtap/tapset::nfs.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: probe::nfs.aop.writepage(3stap) from systemtap 5.6-r0 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git