Date: Mon, 22 Mar 2004 08:04:43 -0800 (PST) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/net if_gre.c if_gre.h src/sys/netinet ip_gre.c Message-ID: <200403221604.i2MG4ht3084226@repoman.freebsd.org>
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rwatson 2004/03/22 08:04:43 PST
FreeBSD src repository
Modified files:
sys/net if_gre.c if_gre.h
sys/netinet ip_gre.c
Log:
Lock down global variables in if_gre:
- Add gre_mtx to protect global softc list.
- Hold gre_mtx over various list operations (insert, delete).
- Centralize if_gre interface teardown in gre_destroy(), and call this
from modevent unload and gre_clone_destroy().
- Export gre_mtx to ip_gre.c, which walks the gre list to look up gre
interfaces during encapsulation. Add a wonking comment on how we need
some sort of drain/reference count mechanism to keep gre references
alive while in use and simultaneous destroy.
This commit does not lockdown softc data, which follows in a future
commit.
Revision Changes Path
1.21 +33 -8 src/sys/net/if_gre.c
1.11 +1 -0 src/sys/net/if_gre.h
1.16 +12 -1 src/sys/netinet/ip_gre.c
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