Eric Lee / linux-smarc-t335x-v3.2

14 Sep, 2008

1 commit

  • 5bead2a06   mm: mark the correct zone as full when scanning zonelists ... Browse Code »

    The iterator for_each_zone_zonelist() uses a struct zoneref *z cursor when
    scanning zonelists to keep track of where in the zonelist it is. The
    zoneref that is returned corresponds to the the next zone that is to be
    scanned, not the current one. It was intended to be treated as an opaque
    list.

    When the page allocator is scanning a zonelist, it marks elements in the
    zonelist corresponding to zones that are temporarily full. As the
    zonelist is being updated, it uses the cursor here;

    if (NUMA_BUILD)
    zlc_mark_zone_full(zonelist, z);

    This is intended to prevent rescanning in the near future but the zoneref
    cursor does not correspond to the zone that has been found to be full.
    This is an easy misunderstanding to make so this patch corrects the
    problem by changing zoneref cursor to be the current zone being scanned
    instead of the next one.

    Signed-off-by: Mel Gorman
    Cc: Andy Whitcroft
    Cc: KAMEZAWA Hiroyuki
    Cc: [2.6.26.x]
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mel Gorman
     

28 Apr, 2008

1 commit

  • 19770b326   mm: filter based on a nodemask as well as a gfp_mask ... Browse Code »

    The MPOL_BIND policy creates a zonelist that is used for allocations
    controlled by that mempolicy. As the per-node zonelist is already being
    filtered based on a zone id, this patch adds a version of __alloc_pages() that
    takes a nodemask for further filtering. This eliminates the need for
    MPOL_BIND to create a custom zonelist.

    A positive benefit of this is that allocations using MPOL_BIND now use the
    local node's distance-ordered zonelist instead of a custom node-id-ordered
    zonelist. I.e., pages will be allocated from the closest allowed node with
    available memory.

    [Lee.Schermerhorn@hp.com: Mempolicy: update stale documentation and comments]
    [Lee.Schermerhorn@hp.com: Mempolicy: make dequeue_huge_page_vma() obey MPOL_BIND nodemask]
    [Lee.Schermerhorn@hp.com: Mempolicy: make dequeue_huge_page_vma() obey MPOL_BIND nodemask rework]
    Signed-off-by: Mel Gorman
    Acked-by: Christoph Lameter
    Signed-off-by: Lee Schermerhorn
    Cc: KAMEZAWA Hiroyuki
    Cc: Mel Gorman
    Cc: Hugh Dickins
    Cc: Nick Piggin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mel Gorman
     

08 Dec, 2006

1 commit

11 Jul, 2006

1 commit

01 Jul, 2006

1 commit

28 Mar, 2006

1 commit

  • 95144c788   [PATCH] uninline zone helpers ... Browse Code »

    Helper functions for for_each_online_pgdat/for_each_zone look too big to be
    inlined. Speed of these helper macro itself is not very important. (inner
    loops are tend to do more work than this)

    This patch make helper function to be out-of-lined.

    inline out-of-line
    .text 005c0680 005bf6a0

    005c0680 - 005bf6a0 = FE0 = 4Kbytes.

    Signed-off-by: KAMEZAWA Hiroyuki
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    KAMEZAWA Hiroyuki