Date: Wed, 6 Jun 2001 16:40:41 +0700 (ALMST) From: Boris Popov <bp@butya.kz> To: stable@freebsd.org Cc: fs@freebsd.org Subject: CFR: Fixes for nullfs in -stable Message-ID: <Pine.BSF.4.21.0106061624520.61571-200000@lion.butya.kz>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --0-248198860-991820441=:61571 Content-Type: TEXT/PLAIN; charset=US-ASCII Hello, I've mostly merged improvements done to nullfs in the -current to RELENG_4 branch. Operations on mmaped files were fixed before and this patch focused on the proper vnode locking. Unfortunately, this code require changes in the layout of vnode structure. It is possible to not break binary compatibility by changing behavior of vop_sharedlock() function and using v_vnlock field as this is done in -current. This requires changes only to nfs code by including lock structure in the nfsnode structure (in the original code it was allocated separately for each nfsnode). Size and layout of vnode structure left unchanged. I hope this will not break any 3rd party file system because all new fs'es should use vop_std*lock() VOPs or roll their own. Patch against recent RELENG_4 is attached. And if there is no serious objections I'm plan to commit it on the next week. -- Boris Popov http://www.butya.kz/~bp/ --0-248198860-991820441=:61571 Content-Type: TEXT/PLAIN; charset=US-ASCII; name="nullfs4.diff" Content-Transfer-Encoding: BASE64 Content-ID: <Pine.BSF.4.21.0106061640400.61571@lion.butya.kz> Content-Description: Content-Disposition: attachment; filename="nullfs4.diff" SW5kZXg6IGtlcm4vdmZzX2RlZmF1bHQuYw0KPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PQ0KUkNTIGZpbGU6IC9ob21lL25jdnMvc3JjL3N5cy9rZXJuL3Zmc19k ZWZhdWx0LmMsdg0KcmV0cmlldmluZyByZXZpc2lvbiAxLjI4LjIuMQ0KZGlm ZiAtdSAtcjEuMjguMi4xIHZmc19kZWZhdWx0LmMNCi0tLSBrZXJuL3Zmc19k ZWZhdWx0LmMJMjAwMS8wNS8xOCAwOTo1ODo0MwkxLjI4LjIuMQ0KKysrIGtl cm4vdmZzX2RlZmF1bHQuYwkyMDAxLzA2LzA2IDA4OjUzOjQ5DQpAQCAtMzYw LDE0ICszNjAsMTMgQEANCiAJICogdG8gYmUgaGFuZGxlZCBpbiBpbnRlcm1l ZGlhdGUgbGF5ZXJzLg0KIAkgKi8NCiAJc3RydWN0IHZub2RlICp2cCA9IGFw LT5hX3ZwOw0KKwlzdHJ1Y3QgbG9jayAqbCA9IChzdHJ1Y3QgbG9jayAqKXZw 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