Date: Wed, 27 Aug 2003 17:52:23 -0700 (PDT) From: Jeff Roberson <jeff@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/gnu/ext2fs fs.h Message-ID: <200308280052.h7S0qNtA040155@repoman.freebsd.org>
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jeff 2003/08/27 17:52:23 PDT
FreeBSD src repository
Modified files:
sys/gnu/ext2fs fs.h
Log:
- In LCK_BUF() simply change the owner of the buf to the kernel.
- In ULCK_BUF we no longer need to acquire the lock, just write the buf out.
- The combination of these changes eliminates one more use of B_LOCKED which
is in the way of making the buffer cache SMP safe. In the long term
ext2fs should probably not try to optimize the use of their metadata bufs
with a private cache. This will starve the rest of the system for buffers
in the extreme case.
Discussed with: bde (A long time ago..)
Tested on: md disk/x86
Revision Changes Path
1.14 +2 -10 src/sys/gnu/ext2fs/fs.h
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