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[PATCH 00/27] Permit filesystem local caching [try #2]

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From: David Howells
Subject: [PATCH 00/27] Permit filesystem local caching [try #2]
Date: Wednesday, January 23, 2008 - 10:20 am

These patches add local caching for network filesystems such as NFS.

The patches can roughly be broken down into a number of sets:

  (*) 01-keys-inc-payload.diff
  (*) 02-keys-search-keyring.diff
  (*) 03-keys-callout-blob.diff

      Three patches to the keyring code made to help the CIFS people.
      Included because of patches 05-08.

  (*) 04-keys-get-label.diff

      A patch to allow the security label of a key to be retrieved.
      Included because of patches 05-08.

  (*) 05-security-current-fsugid.diff
  (*) 06-security-separate-task-bits.diff
  (*) 07-security-subjective.diff
  (*) 08-security-secctx2secid.diff
  (*) 09-security-additional-classes.diff
  (*) 10-security-kernel_service-class.diff
  (*) 11-security-kernel-service.diff
  (*) 12-security-nfsd.diff

      Patches to permit the subjective security of a task to be overridden.
      All the security details in task_struct are decanted into a new struct
      that task_struct then has two pointers two: one that defines the
      objective security of that task (how other tasks may affect it) and one
      that defines the subjective security (how it may affect other objects).

      Note that I have dropped the idea of struct cred for the moment.  With
      the amount of stuff that was excluded from it, it wasn't actually any
      use to me.  However, it can be added later.

      Required for cachefiles.

  (*) 13-release-page.diff
  (*) 14-fscache-page-flags.diff
  (*) 15-add_wait_queue_tail.diff
  (*) 16-fscache.diff

      Patches to provide a local caching facility for network filesystems.

  (*) 17-cachefiles-ia64.diff
  (*) 18-cachefiles-ext3-f_mapping.diff
  (*) 19-cachefiles-write.diff
  (*) 20-cachefiles-monitor.diff
  (*) 21-cachefiles-export.diff
  (*) 22-cachefiles.diff

      Patches to provide a local cache in a directory of an already mounted
      filesystem.

  (*) 23-nfs-memleak.diff
  (*) 24-fscache-nfs.diff
  (*) 25-fscache-nfs-mount.diff
  (*) 26-fscache-nfs-display.diff
  (*) 27-fscache-nfs-persb.diff

      Patches to provide NFS with local caching.  The fifth of these patches
      makes caching configurable per superblock.


I've fixed some current->fs[ug]id conversions as pointed out by Jan Harkes.

I also fixed patch 14 (fscache-page-flags.diff) to make
wait_on_page_owner_priv_2() use PG_owner_priv_2 rather than PG_private_2.

--
A tarball of the patches is available at:

	http://people.redhat.com/~dhowells/fscache/patches/nfs+fscache-28.tar.bz2


To use this version of CacheFiles, the cachefilesd-0.9 is also required.  It
is available as an SRPM:

	http://people.redhat.com/~dhowells/fscache/cachefilesd-0.9-1.fc7.src.rpm

Or as individual bits:

	http://people.redhat.com/~dhowells/fscache/cachefilesd-0.9.tar.bz2
	http://people.redhat.com/~dhowells/fscache/cachefilesd.fc
	http://people.redhat.com/~dhowells/fscache/cachefilesd.if
	http://people.redhat.com/~dhowells/fscache/cachefilesd.te
	http://people.redhat.com/~dhowells/fscache/cachefilesd.spec

The .fc, .if and .te files are for manipulating SELinux.

David
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Messages in current thread:
[PATCH 00/27] Permit filesystem local caching [try #2], David Howells, (Wed Jan 23, 10:20 am)
[PATCH 01/27] KEYS: Increase the payload size when instant ..., David Howells, (Wed Jan 23, 10:20 am)
[PATCH 02/27] KEYS: Check starting keyring as part of sear ..., David Howells, (Wed Jan 23, 10:20 am)
[PATCH 03/27] KEYS: Allow the callout data to be passed as ..., David Howells, (Wed Jan 23, 10:20 am)
[PATCH 04/27] KEYS: Add keyctl function to get a security ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 05/27] Security: Change current->fs[ug]id to curren ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 06/27] Security: Separate task security context fro ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 07/27] Security: De-embed task security record from ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 08/27] Add a secctx_to_secid() LSM hook to go along ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 09/27] Security: Pre-add additional non-caching cla ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 10/27] Security: Add a kernel_service object class ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 11/27] Security: Allow kernel services to override ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 12/27] Security: Make NFSD work with detached secur ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 13/27] FS-Cache: Release page->private after failed ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 14/27] FS-Cache: Recruit a couple of page flags for ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 15/27] FS-Cache: Provide an add_wait_queue_tail() f ..., David Howells, (Wed Jan 23, 10:21 am)
[PATCH 16/27] FS-Cache: Generic filesystem caching facilit ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 17/27] CacheFiles: Add missing copy_page export for ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 18/27] CacheFiles: Be consistent about the use of m ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 19/27] CacheFiles: Add a hook to write a single pag ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 20/27] CacheFiles: Permit the page lock state to be ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 21/27] CacheFiles: Export things for CacheFiles [tr ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 22/27] CacheFiles: A cache that backs onto a mounte ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 23/27] NFS: Fix memory leak [try #2], David Howells, (Wed Jan 23, 10:22 am)
[PATCH 24/27] NFS: Use local caching [try #2], David Howells, (Wed Jan 23, 10:22 am)
[PATCH 25/27] NFS: Configuration and mount option changes ..., David Howells, (Wed Jan 23, 10:22 am)
[PATCH 26/27] NFS: Display local caching state [try #2], David Howells, (Wed Jan 23, 10:22 am)
[PATCH 27/27] NFS: Separate caching by superblock, explici ..., David Howells, (Wed Jan 23, 10:23 am)
Re: [PATCH 24/27] NFS: Use local caching [try #2], Trond Myklebust, (Thu Jan 24, 2:08 pm)
Re: [PATCH 25/27] NFS: Configuration and mount option chan ..., Trond Myklebust, (Thu Jan 24, 2:14 pm)
Re: [PATCH 23/27] NFS: Fix memory leak [try #2], Trond Myklebust, (Thu Jan 24, 2:15 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], Chuck Lever, (Thu Jan 24, 2:22 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], David Howells, (Tue Jan 29, 8:25 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], Trond Myklebust, (Tue Jan 29, 11:46 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], Chuck Lever, (Wed Jan 30, 3:36 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], David Howells, (Thu Jan 31, 4:29 pm)
Re: [PATCH 24/27] NFS: Use local caching [try #2], David Howells, (Thu Feb 7, 3:57 am)