Date: Sun, 17 Feb 2008 02:32:55 GMT From: John Birrell <jb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 135545 for review Message-ID: <200802170232.m1H2Wteu097488@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=135545 Change 135545 by jb@jb_freebsd1 on 2008/02/17 02:32:07 Don't assert that the linker lock is locked when getting CTF data. To solve the locking problems that DTrace bumps into, we'll have to add a "busy" counter to the linker_file structure so that a module can (lock the linker lock and) say "you can't unload me now because I'm doing stuff, try again later" (then unlock the linker lock) and do it's stuff without otherwise having to hold a lock to stop itself from getting unloaded. Affected files ... .. //depot/projects/dtrace/src/sys/kern/kern_linker.c#29 edit Differences ... ==== //depot/projects/dtrace/src/sys/kern/kern_linker.c#29 (text+ko) ==== @@ -650,8 +650,6 @@ int linker_ctf_get(linker_file_t file, const uint8_t **data, int *len) { - KLD_LOCK_ASSERT(); - return (LINKER_CTF_GET(file, data, len)); }
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