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Date:      Tue, 23 Jun 2009 20:45:22 +0000 (UTC)
From:      Konstantin Belousov <kib@FreeBSD.org>
To:        cvs-src-old@freebsd.org
Subject:   cvs commit: src/sys/dev/md md.c src/sys/fs/procfs procfs_map.c src/sys/fs/tmpfs tmpfs_subr.c src/sys/kern kern_fork.c kern_resource.c sys_process.c sysv_shm.c uipc_shm.c src/sys/security/mac_biba mac_biba.c src/sys/security/mac_lomac ...
Message-ID:  <200906232050.n5NKoS6V069001@repoman.freebsd.org>

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kib         2009-06-23 20:45:22 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/md           md.c 
    sys/fs/procfs        procfs_map.c 
    sys/fs/tmpfs         tmpfs_subr.c 
    sys/kern             kern_fork.c kern_resource.c sys_process.c 
                         sysv_shm.c uipc_shm.c 
    sys/security/mac_biba mac_biba.c 
    sys/security/mac_lomac mac_lomac.c 
    sys/sys              priv.h resource.h resourcevar.h 
    sys/vm               default_pager.c device_pager.c 
                         phys_pager.c swap_pager.c vm.h 
  Log:
  SVN rev 194766 on 2009-06-23 20:45:22Z by kib
  
  Implement global and per-uid accounting of the anonymous memory. Add
  rlimit RLIMIT_SWAP that limits the amount of swap that may be reserved
  for the uid.
  
  The accounting information (charge) is associated with either map entry,
  or vm object backing the entry, assuming the object is the first one
  in the shadow chain and entry does not require COW. Charge is moved
  from entry to object on allocation of the object, e.g. during the mmap,
  assuming the object is allocated, or on the first page fault on the
  entry. It moves back to the entry on forks due to COW setup.
  
  The per-entry granularity of accounting makes the charge process fair
  for processes that change uid during lifetime, and decrements charge
  for proper uid when region is unmapped.
  
  The interface of vm_pager_allocate(9) is extended by adding struct ucred *,
  that is used to charge appropriate uid when allocation if performed by
  kernel, e.g. md(4).
  
  Several syscalls, among them is fork(2), may now return ENOMEM when
  global or per-uid limits are enforced.
  
  In collaboration with:  pho
  Reviewed by:    alc
  Approved by:    re (kensmith)
  
  Revision  Changes    Path
  1.182     +4 -4      src/sys/dev/md/md.c
  1.50      +8 -3      src/sys/fs/procfs/procfs_map.c
  1.23      +2 -1      src/sys/fs/tmpfs/tmpfs_subr.c
  1.304     +16 -2     src/sys/kern/kern_fork.c
  1.194     +6 -0      src/sys/kern/kern_resource.c
  1.153     +5 -1      src/sys/kern/sys_process.c
  1.119     +4 -7      src/sys/kern/sysv_shm.c
  1.10      +23 -8     src/sys/kern/uipc_shm.c
  1.134     +2 -0      src/sys/security/mac_biba/mac_biba.c
  1.78      +2 -0      src/sys/security/mac_lomac/mac_lomac.c
  1.35      +8 -0      src/sys/sys/priv.h
  1.35      +3 -1      src/sys/sys/resource.h
  1.55      +6 -0      src/sys/sys/resourcevar.h
  1.36      +21 -4     src/sys/vm/default_pager.c
  1.89      +3 -2      src/sys/vm/device_pager.c
  1.31      +1 -1      src/sys/vm/phys_pager.c
  1.311     +152 -7    src/sys/vm/swap_pager.c
  1.29      +7 -0      src/sys/vm/vm.h



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