git: HAMMER - break atomicy for huge reads and writes.

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit f864373ff918ca8be59bfbb575c27256b3f5cd02
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Tue Aug 18 21:06:23 2009 -0700

    HAMMER - break atomicy for huge reads and writes.
    
    * Allow reads or writes in excess of 100MB to be interrupted.  Otherwise
      it is a simple matter to DOS the machine into oblivion.
    
      And if you think it could be bad on a 32 bit machine, just think what
      can happen on a 64-bit machine with a multi-terrabyte address space!

Summary of changes:
 sys/vfs/hammer/hammer_vnops.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f864373ff918ca8be59bfbb575c27256b3f5cd02


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