Date: Tue, 13 Dec 2005 23:14:35 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_mutex.c kern_sx.c src/sys/sys lock.h Message-ID: <200512132314.jBDNEaT0092314@repoman.freebsd.org>
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jhb 2005-12-13 23:14:35 UTC
FreeBSD src repository
Modified files:
sys/kern kern_mutex.c kern_sx.c
sys/sys lock.h
Log:
Add a new 'show lock' command to ddb. If the argument has a valid lock
class, then it displays various information about the lock and calls a
new function pointer in lock_class (lc_ddb_show) to dump class-specific
information about the lock as well (such as the owner of a mutex or
xlock'ed sx lock). This is easier than staring at hex dumps of locks to
figure out who owns the lock, etc. Note that extending lock_class doesn't
affect the ABI for any kernel modules as the only code that deals with
lock_class structures directly is kern_mutex.c, kern_sx.c, and witness.
MFC after: 1 week
Revision Changes Path
1.159 +73 -2 src/sys/kern/kern_mutex.c
1.26 +37 -1 src/sys/kern/kern_sx.c
1.54 +1 -0 src/sys/sys/lock.h
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