Date: Tue, 25 Aug 1998 02:34:25 -0500 (EST) From: "John S. Dyson" <dyson@iquest.net> To: current@FreeBSD.ORG Subject: Follow-up on the busy page problem Message-ID: <199808250734.CAA00249@dyson.iquest.net>
next in thread | raw e-mail | index | archive | help
It appears that the usage of PG_BUSY and m->busy is distorted. m->busy is used for the buffer cache code to show that I/O is active on a page. PG_BUSY blocks all other concurrent activity, while m->busy allows other concurrent activity. PAGE_BUSY would be used to set the PG_BUSY bit, while one would incr m->busy when doing concurrent (or sequential) I/Os. -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199808250734.CAA00249>