Date: Wed, 9 Apr 2008 19:07:49 +0000 (UTC) From: Sam Leffler <sam@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern subr_firmware.c Message-ID: <200804091907.m39J7nQb087521@repoman.freebsd.org>
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sam 2008-04-09 19:07:49 UTC
FreeBSD src repository
Modified files:
sys/kern subr_firmware.c
Log:
Do image loading in a context known to have a root directory:
o create a private task queue thread that sets up root and current
directories (hooking mountroot event as needed); this is necessary
because task queue threads are parented from proc0 and it does not
have a reference to rootvnode (lost when / mounting moved to init)
o bounce image load + unload requests through the private task q so
we can load images even when the request is made from a thread that
does not have sufficient context (e.g. task q thread)
o add a check in the task q thread to fail requests before root is
mounted (just in case)
Reviewed by: jhb, mlaier, luigi (glance)
MFC after: 1 month
Revision Changes Path
1.10 +121 -23 src/sys/kern/subr_firmware.c
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