Date: Tue, 3 Jan 2006 22:42:58 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/net if.c if_var.h Message-ID: <200601032242.k03Mgwj8033724@repoman.freebsd.org>
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emaste 2006-01-03 22:42:58 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_5)
sys/net if.c if_var.h
Log:
Merge link layer mutlicast address list locking from HEAD to RELENG_5,
with a few changes to preserve ABI compatibility.
if_var.h:1.100:
Add if_addr_mtx, a mutex to protect ifnet-related address lists. Add
accessor macros.
Unlike FreeBSD 6 and HEAD, share a global mutex (instead of putting it
in struct ifnet) to maintain ABI backwards compatibility.
if_var.h:1.101:
- Rename ifmaof_ifpforaddr() to if_findmulti(); assert if_addr_mtx.
Staticize.
if.c:1.239:
Protect link layer network interface multicast address list manipulation
using (global) if_addr_mtx:
- Initialize if_addr_mtx in if_init().
- Rename ifmaof_ifpforaddr() to if_findmulti(); assert if_addr_mtx.
Staticize.
- Extract ifmultiaddr allocation and initialization into if_allocmulti();
accept a 'mflags' argument to indicate whether or not sleeping is
permitted. This centralizes error handling and address duplication.
- Extract ifmultiaddr tear-down and deallocation in if_freemulti().
- Re-structure if_addmulti() to hold if_addr_mtx around manipulation of
the ifnet multicast address list and reference count manipulation.
Make use of non-sleeping allocations. Annotate the fact that we only
generate routing socket events for explicit address addition, not
implicit link layer address addition.
- Re-structure if_delmulti() to hold if_addr_mtx around manipulation of
the ifnet multicast address list and reference count manipulation.
Annotate the lack of a routing socket event for implicit link layer
address removal.
- De-spl all and sundry.
Approved by: rwatson (mentor)
Revision Changes Path
1.199.2.20 +208 -119 src/sys/net/if.c
1.84.2.8 +17 -1 src/sys/net/if_var.h
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