From owner-cvs-src@FreeBSD.ORG  Wed Jun 21 20:42:08 2006
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From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 21 Jun 2006 20:42:08 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/kern kern_linker.c link_elf.c link_elf_obj.c
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jhb         2006-06-21 20:42:08 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_linker.c link_elf.c link_elf_obj.c 
  Log:
  Replace the kld_mtx mutex with a kld_sx sx lock and expand it's scope to
  protect all linker-related data structures including the contents of
  linker file objects and the any linker class data as well. Considering how
  rarely the linker is used I just went with the simple solution of
  single-threading the whole thing rather than expending a lot of effor on
  something more fine-grained and complex.  Giant is still explicitly
  acquired while registering and deregistering sysctl's as well as in the
  elf linker class while calling kmupetext().  The rest of the linker runs
  without Giant unless it has to acquire Giant while loading files from a
  non-MPSAFE filesystem.
  
  Revision  Changes    Path
  1.138     +76 -49    src/sys/kern/kern_linker.c
  1.89      +2 -2      src/sys/kern/link_elf.c
  1.92      +0 -2      src/sys/kern/link_elf_obj.c