Eric Lee / smarc-fsl-linux-kernel

13 Jul, 2011

1 commit

  • 3881ac04e   dlm: improve rsb searches ... Browse Code »

    By pre-allocating rsb structs before searching the hash
    table, they can be inserted immediately. This avoids
    always having to repeat the search when adding the struct
    to hash list.

    This also adds space to the rsb struct for a max resource
    name, so an rsb allocation can be used by any request.
    The constant size also allows us to finally use a slab
    for the rsb structs.

    Signed-off-by: David Teigland

    David Teigland
     

01 Dec, 2009

1 commit

  • 573c24c4a   dlm: always use GFP_NOFS ... Browse Code »

    Replace all GFP_KERNEL and ls_allocation with GFP_NOFS.
    ls_allocation would be GFP_KERNEL for userland lockspaces
    and GFP_NOFS for file system lockspaces.

    It was discovered that any lockspaces on the system can
    affect all others by triggering memory reclaim in the
    file system which could in turn call back into the dlm
    to acquire locks, deadlocking dlm threads that were
    shared by all lockspaces, like dlm_recv.

    Signed-off-by: David Teigland

    David Teigland
     

24 Dec, 2008

1 commit

  • d6d7b702a   dlm: fix up memory allocation flags ... Browse Code »

    Use ls_allocation for memory allocations, which a cluster fs sets to
    GFP_NOFS. Use GFP_NOFS for allocations when no lockspace struct is
    available. Taking dlm locks needs to avoid calling back into the
    cluster fs because write-out can require taking dlm locks.

    Cc: Christine Caulfield
    Signed-off-by: Steven Whitehouse
    Signed-off-by: David Teigland

    Steven Whitehouse
     

07 Feb, 2008

2 commits

30 Jan, 2008

1 commit

20 Jul, 2007

2 commits

  • 20c2df83d   mm: Remove slab destructors from kmem_cache_create(). ... Browse Code »

    Slab destructors were no longer supported after Christoph's
    c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
    BUGs for both slab and slub, and slob never supported them
    either.

    This rips out support for the dtor pointer from kmem_cache_create()
    completely and fixes up every single callsite in the kernel (there were
    about 224, not including the slab allocator definitions themselves,
    or the documentation references).

    Signed-off-by: Paul Mundt

    Paul Mundt
     
  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

12 Feb, 2007

1 commit

  • c37622296   [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc(). ... Browse Code »

    Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the
    corresponding "kmem_cache_zalloc()" call.

    Signed-off-by: Robert P. J. Day
    Cc: "Luck, Tony"
    Cc: Andi Kleen
    Cc: Roland McGrath
    Cc: James Bottomley
    Cc: Greg KH
    Acked-by: Joel Becker
    Cc: Steven Whitehouse
    Cc: Jan Kara
    Cc: Michael Halcrow
    Cc: "David S. Miller"
    Cc: Stephen Smalley
    Cc: James Morris
    Cc: Chris Wright
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     

08 Dec, 2006

1 commit

  • e18b890bb   [PATCH] slab: remove kmem_cache_t ... Browse Code »

    Replace all uses of kmem_cache_t with struct kmem_cache.

    The patch was generated using the following script:

    #!/bin/sh
    #
    # Replace one string by another in all the kernel sources.
    #

    set -e

    for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
    quilt add $file
    sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
    mv /tmp/$$ $file
    quilt refresh
    done

    The script was run like this

    sh replace kmem_cache_t "struct kmem_cache"

    Signed-off-by: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

09 Aug, 2006

1 commit

13 Jul, 2006

1 commit

  • 597d0cae0   [DLM] dlm: user locks ... Browse Code »

    This changes the way the dlm handles user locks. The core dlm is now
    aware of user locks so they can be dealt with more efficiently. There is
    no more dlm_device module which previously managed its own duplicate copy
    of every user lock.

    Signed-off-by: Patrick Caulfield
    Signed-off-by: David Teigland
    Signed-off-by: Steven Whitehouse

    David Teigland
     

23 Feb, 2006

1 commit

18 Jan, 2006

1 commit

  • e7fd41792   [DLM] The core of the DLM for GFS2/CLVM ... Browse Code »

    This is the core of the distributed lock manager which is required
    to use GFS2 as a cluster filesystem. It is also used by CLVM and
    can be used as a standalone lock manager independantly of either
    of these two projects.

    It implements VAX-style locking modes.

    Signed-off-by: David Teigland
    Signed-off-by: Steve Whitehouse

    David Teigland