Re: Where does a vnode gets dirty?

To: manu%netbsd.org@localhost
Subject: Re: Where does a vnode gets dirty?
From: yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)
Date: Fri, 19 Aug 2011 06:50:07 +0000 (UTC)

hi,

> Hello
> 
> When copying data to a vnode using ubc_alloc() ubc_uiomove() and
> ubc_release(), where does the kernel notes that data is dirty and will
> need to be written by VOP_PUTPAGE? Is it the responsability of the
> caller to request it (how?), or is it done somewhere in UBC?

VOP_GETPAGES marks the vnode dirty so that it will be processed by syncer.
see genfs_markdirty.

YAMAMOTO Takashi

> 
> -- 
> Emmanuel Dreyfus
> http://hcpnet.free.fr/pubz
> manu%netbsd.org@localhost

References:
- Where does a vnode gets dirty?
  - From: Emmanuel Dreyfus

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