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Re: struct file at VFS level (round 1.5)
Christoph Badura <bad%bsd.de@localhost> wrote:
> Mandatory file locking simply is a SMOP for the kernel to add a flag to a
> vnode that indicates whether mandatory locking is in effect and adding the
> necessary checks and interaction with file systems to open(2), read(2),
> write(2) etc. at the syscall level. VOP_ADVLOCK is the right place to
> handle the necessary interaction with the file systems.[3]
Please tell me if I understood your point of view correctly: you mean
that mandatory locks should be implemented above VFS, by turning for
instance a write operation into VOP_ADVLOCK then on success VOP_WRITE?
--
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu%netbsd.org@localhost
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