15 Jan, 2011

1 commit

  • flush_scheduled_work() is going away. afs needs to make sure all the
    works it has queued have finished before being unloaded and there can
    be arbitrary number of pending works. Add afs_wq and use it as the
    flush domain instead of the system workqueue.

    Also, convert cancel_delayed_work() + flush_scheduled_work() to
    cancel_delayed_work_sync() in afs_mntpt_kill_timer().

    Signed-off-by: Tejun Heo
    Signed-off-by: David Howells
    Cc: linux-afs@lists.infradead.org
    Signed-off-by: Linus Torvalds

    Tejun Heo
     

30 Mar, 2010

1 commit

  • …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

29 Apr, 2008

2 commits


17 Oct, 2007

1 commit

  • This patch contains the following possible cleanups:
    - make the following needlessly global functions static:
    - rxrpc.c: afs_send_pages()
    - vlocation.c: afs_vlocation_queue_for_updates()
    - write.c: afs_writepages_region()
    - make the following needlessly global variables static:
    - mntpt.c: afs_mntpt_expiry_timeout
    - proc.c: afs_vlocation_states[]
    - server.c: afs_server_timeout
    - vlocation.c: afs_vlocation_timeout
    - vlocation.c: afs_vlocation_update_timeout
    - #if 0 the following unused function:
    - cell.c: afs_get_cell_maybe()
    - #if 0 the following unused variables:
    - callback.c: afs_vnode_update_timeout
    - cmservice.c: struct afs_cm_workqueue

    Signed-off-by: Adrian Bunk
    Acked-by: David Howells
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

03 May, 2007

1 commit


27 Apr, 2007

5 commits

  • Implement the CB.InitCallBackState3 operation for the fileserver to
    call. This reduces the amount of network traffic because if this op
    is aborted, the fileserver will then attempt an CB.InitCallBackState
    operation.

    Signed-off-by: David Howells
    Signed-off-by: David S. Miller

    David Howells
     
  • Add support for the CB.GetCapabilities operation with which the fileserver can
    ask the client for the following information:

    (1) The list of network interfaces it has available as IPv4 address + netmask
    plus the MTUs.

    (2) The client's UUID.

    (3) The extended capabilities of the client, for which the only current one
    is unified error mapping (abort code interpretation).

    To support this, the patch adds the following routines to AFS:

    (1) A function to iterate through all the network interfaces using RTNETLINK
    to extract IPv4 addresses and MTUs.

    (2) A function to iterate through all the network interfaces using RTNETLINK
    to pull out the MAC address of the lowest index interface to use in UUID
    construction.

    Signed-off-by: David Howells
    Signed-off-by: David S. Miller

    David Howells
     
  • Add security support to the AFS filesystem. Kerberos IV tickets are added as
    RxRPC keys are added to the session keyring with the klog program. open() and
    other VFS operations then find this ticket with request_key() and either use
    it immediately (eg: mkdir, unlink) or attach it to a file descriptor (open).

    Signed-off-by: David Howells
    Signed-off-by: David S. Miller

    David Howells
     
  • Make the in-kernel AFS filesystem use AF_RXRPC instead of the old RxRPC code.

    Signed-off-by: David Howells
    Signed-off-by: David S. Miller

    David Howells
     
  • Clean up the AFS sources.

    Also remove references to AFS keys. RxRPC keys are used instead.

    Signed-off-by: David Howells
    Signed-off-by: David S. Miller

    David Howells
     

24 Mar, 2006

1 commit

  • Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a
    duplicate of ARRAY_SIZE. Some trailing whitespaces are also deleted.

    Signed-off-by: Tobias Klauser
    Cc: David Howells
    Cc: Dave Kleikamp
    Acked-by: Trond Myklebust
    Cc: Neil Brown
    Cc: Chris Mason
    Cc: Jeff Mahoney
    Cc: Christoph Hellwig
    Cc: Nathan Scott
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tobias Klauser
     

11 Jan, 2006

1 commit


17 Apr, 2005

1 commit

  • Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds