Messages in this thread | | | Date | Mon, 5 Apr 2004 13:39:33 +0100 | From | Jamie Lokier <> | Subject | Re: [PATCH] cowlinks v2 |
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Eric W. Biederman wrote: > As scheme that does not isolate the invalidate to the new copy worries me.
It is possible to isolate the invalidate to mappings of the newly broken cowlink only.
There is still the problem of MAP_LOCKED, or more realistically mlockall() used with mappings of glibc etc. on a filesystem snapshot made using cowlinks. The easiest thing is obviously to break the cowlink when a mapping is locked, but it's not nice.
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