Messages in this thread | | | Date | Thu, 17 Nov 2005 12:02:06 -0500 | From | Chuck Lever <> | Subject | Re: mmap over nfs leads to excessive system load |
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Trond Myklebust wrote: > I had a quick look at nfs_file_direct_write(), and among other things, > it would appear that it is not doing any of the usual overflow checks on > *pos and the count size (see generic_write_checks()). In particular, > checks are missing against overflow vs. MAX_NON_LFS if O_LARGEFILE is > not set (and also against overflow vs. s_maxbytes, but that is less > relevant here).
the architecture is to allow the NFS protocol and server to do these checks. begin:vcard fn:Chuck Lever n:Lever;Charles org:Network Appliance, Incorporated;Linux NFS Client Development adr:535 West William Street, Suite 3100;;Center for Information Technology Integration;Ann Arbor;MI;48103-4943;USA email;internet:cel@citi.umich.edu title:Member of Technical Staff tel;work:+1 734 763 4415 tel;fax:+1 734 763 4434 tel;home:+1 734 668 1089 x-mozilla-html:FALSE url:http://www.monkey.org/~cel/ version:2.1 end:vcard
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