Date: Tue, 1 Aug 2006 16:32:20 +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_syscalls.c src/sys/sys kernel.h sysent.h Message-ID: <200608011632.k71GWKMJ006941@repoman.freebsd.org>
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jhb 2006-08-01 16:32:20 UTC
FreeBSD src repository
Modified files:
sys/kern kern_syscalls.c
sys/sys kernel.h sysent.h
Log:
Make system call modules a bit more robust:
- If we fail to register the system call during MOD_LOAD, then note that
so that we don't try to deregister it or invoke the chained event handler
during the subsequent MOD_UNLOAD event. Doing the deregister when the
register failed could result in trashing system call entries.
- Add a SI_SUB_SYSCALLS just before starting up init and use that to
register syscall modules instead of SI_SUB_DRIVERS. Registering system
calls as late as possible increases the chances that any other module
event handlers or SYSINITs in a module are executed to initialize the
data in a kld before a syscall dependent on that data is able to be
invoked.
MFC after: 3 days
Revision Changes Path
1.12 +11 -1 src/sys/kern/kern_syscalls.c
1.131 +1 -0 src/sys/sys/kernel.h
1.49 +1 -1 src/sys/sys/sysent.h
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