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On 9/13/07, Pavel Emelyanov <xemul@openvz.org> wrote: > J. Bruce Fields wrote: > > On Tue, Sep 11, 2007 at 04:38:13PM +0400, Pavel Emelyanov wrote: > >> This is a known feature that such "re-locking" is not atomic, > >> but in the racy case the file should stay locked (although by > >> some other process), but in this case the file will be unlocked. > > > > That's a little subtle (I assume you've never seen this actually > > happen?), but it makes sense to me. > > Well, this situation is hard to notice since usually programs > try to finish up when some error is returned from the kernel, > but I do believe that this could happen in one of the openvz > kernels since we limit the kernel memory usage for "containers" > and thus -ENOMEM is a common error. > The fault injection framework should be able to introduce the same error. Of course hitting the error would require careful setup of the fault parameters. Balbir - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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