Jim Mostek wrote:
>
> I don't see a callout from sys_fcntl into a file system specific
> routine (other than for file locking). There is a lock callout in
> the file operations that can be invoked in fcntl_getlk/fcntl_setlk/...
> (I'm looking in 2.3.42). But, this is different than file system
> specific fcntls. There is a call to sock_fcntl if the inode is a
> socket. But, I don't see a call for a file system specific fcntl
> in sys_fcntl..
>
If memory serves, in SVRx derived Unixes fcntl calls are supposed
to resolve in the FS-independent layer, therefore the need for FS
writers to resort to ioctl's in order to provide access to unique
features in their FS. I suppose that's where Linus got the idea...
thx,
dk
---------
Dan Koren Dan.Koren@sgi.com
Silicon Graphics, Inc. phone: (USA) 650-933-3678
1200 Crittenden Lane M/S 30-3-802 fax: (USA) 650-932-0317
Mountain View, CA 94040 dkoren_p@pager.sgi.com
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