Doug / smarc-fsl-linux-kernel

31 Mar, 2011

1 commit

13 Mar, 2010

1 commit

  • 70bace8c1   Documentation/vm/: split txt and source files ... Browse Code »

    Documentation/vm/:
    Expose example and tool source files in the Documentation/ directory in
    their own files instead of being buried (almost hidden) in readme/txt files.
    This should help to prevent bitrot.

    This will make them more visible/usable to users who may need
    to use them, to developers who may need to test with them, and
    to anyone who would fix/update them if they were more visible.

    Also, if any of these possibly should not be in the kernel tree at
    all, it will be clearer that they are here and we can discuss if
    they should be removed.

    Also build the recently-added map_hugetlb.c.
    Make several functions static to prevent linker warnings.

    Signed-off-by: Randy Dunlap
    Acked-by: Eric B Munson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Randy Dunlap
     

16 Dec, 2009

3 commits

  • 4faf8d950   hugetlb: handle memory hot-plug events ... Browse Code »

    Register per node hstate attributes only for nodes with memory. As
    suggested by David Rientjes.

    With Memory Hotplug, memory can be added to a memoryless node and a node
    with memory can become memoryless. Therefore, add a memory on/off-line
    notifier callback to [un]register a node's attributes on transition
    to/from memoryless state.

    N.B., Only tested build, boot, libhugetlbfs regression.
    i.e., no memory hotplug testing.

    Signed-off-by: Lee Schermerhorn
    Reviewed-by: Andi Kleen
    Acked-by: David Rientjes
    Cc: KAMEZAWA Hiroyuki
    Cc: Lee Schermerhorn
    Cc: Mel Gorman
    Cc: Randy Dunlap
    Cc: Nishanth Aravamudan
    Cc: Adam Litke
    Cc: Andy Whitcroft
    Cc: Eric Whitney
    Cc: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lee Schermerhorn
     
  • 9b5e5d0fd   hugetlb: use only nodes with memory for huge pages ... Browse Code »

    Register per node hstate sysfs attributes only for nodes with memory.
    Global replacement of 'all online nodes" with "all nodes with memory" in
    mm/hugetlb.c. Suggested by David Rientjes.

    A subsequent patch will handle adding/removing of per node hstate sysfs
    attributes when nodes transition to/from memoryless state via memory
    hotplug.

    NOTE: this patch has not been tested with memoryless nodes.

    Signed-off-by: Lee Schermerhorn
    Reviewed-by: Andi Kleen
    Cc: KAMEZAWA Hiroyuki
    Cc: Mel Gorman
    Cc: Randy Dunlap
    Cc: Nishanth Aravamudan
    Acked-by: David Rientjes
    Cc: Adam Litke
    Cc: Andy Whitcroft
    Cc: Eric Whitney
    Cc: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lee Schermerhorn
     
  • 267b4c281   hugetlb: update hugetlb documentation for NUMA controls ... Browse Code »

    Update the kernel huge tlb documentation to describe the numa memory
    policy based huge page management. Additionaly, the patch includes a fair
    amount of rework to improve consistency, eliminate duplication and set the
    context for documenting the memory policy interaction.

    Signed-off-by: Lee Schermerhorn
    Acked-by: David Rientjes
    Acked-by: Mel Gorman
    Reviewed-by: Andi Kleen
    Cc: KAMEZAWA Hiroyuki
    Cc: Lee Schermerhorn
    Cc: Randy Dunlap
    Cc: Nishanth Aravamudan
    Cc: Adam Litke
    Cc: Andy Whitcroft
    Cc: Eric Whitney
    Cc: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lee Schermerhorn
     

22 Sep, 2009

2 commits

  • 94bf5ceac   hugetlb: add MAP_HUGETLB example ... Browse Code »

    Add an example of how to use the MAP_HUGETLB flag to the vm documentation
    directory and a reference to the example in hugetlbpage.txt.

    Signed-off-by: Eric B Munson
    Acked-by: David Rientjes
    Cc: Mel Gorman
    Cc: Adam Litke
    Cc: David Gibson
    Cc: Lee Schermerhorn
    Cc: Nick Piggin
    Cc: Hugh Dickins
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric B Munson
     
  • 41a25e7e6   hugetlb: clean up and update huge pages documentation ... Browse Code »

    Attempt to clarify huge page administration and usage, and updates the
    doucmentation to mention the balancing of huge pages across nodes when
    allocating and freeing.

    Signed-off-by: Lee Schermerhorn
    Cc: Mel Gorman
    Cc: Nishanth Aravamudan
    Cc: David Rientjes
    Cc: Adam Litke
    Cc: Andy Whitcroft
    Cc: Eric Whitney
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lee Schermerhorn
     

27 Jul, 2008

1 commit

25 Jul, 2008

1 commit

  • a34378701   hugetlb: new sysfs interface ... Browse Code »

    Provide new hugepages user APIs that are more suited to multiple hstates
    in sysfs. There is a new directory, /sys/kernel/hugepages. Underneath
    that directory there will be a directory per-supported hugepage size,
    e.g.:

    /sys/kernel/hugepages/hugepages-64kB
    /sys/kernel/hugepages/hugepages-16384kB
    /sys/kernel/hugepages/hugepages-16777216kB

    corresponding to 64k, 16m and 16g respectively. Within each
    hugepages-size directory there are a number of files, corresponding to the
    tracked counters in the hstate, e.g.:

    /sys/kernel/hugepages/hugepages-64/nr_hugepages
    /sys/kernel/hugepages/hugepages-64/nr_overcommit_hugepages
    /sys/kernel/hugepages/hugepages-64/free_hugepages
    /sys/kernel/hugepages/hugepages-64/resv_hugepages
    /sys/kernel/hugepages/hugepages-64/surplus_hugepages

    Of these files, the first two are read-write and the latter three are
    read-only. The size of the hugepage being manipulated is trivially
    deducible from the enclosing directory and is always expressed in kB (to
    match meminfo).

    [dave@linux.vnet.ibm.com: fix build]
    [nacc@us.ibm.com: hugetlb: hang off of /sys/kernel/mm rather than /sys/kernel]
    [nacc@us.ibm.com: hugetlb: remove CONFIG_SYSFS dependency]
    Acked-by: Greg Kroah-Hartman
    Signed-off-by: Nishanth Aravamudan
    Signed-off-by: Nick Piggin
    Cc: Dave Hansen
    Signed-off-by: Nishanth Aravamudan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nishanth Aravamudan
     

16 Apr, 2008

1 commit

  • 423bec430   Documentation: correct overcommit caveat in hugetlbpage.txt ... Browse Code »

    As shown by Gurudas Pai recently, we can put hugepages into the surplus
    state (by echo 0 > /proc/sys/vm/nr_hugepages), even when
    /proc/sys/vm/nr_overcommit_hugepages is 0. This is actually correct, to
    allow the original goal (shrink the static pool to 0) to succeed (we are
    converting hugepages to surplus because they are in use). However, the
    documentation does not accurately reflect this case. Update it.

    Signed-off-by: Nishanth Aravamudan
    Acked-by: Andy Whitcroft
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nishanth Aravamudan
     

18 Dec, 2007

1 commit

  • d5dbac87b   Documentation: update hugetlb information ... Browse Code »

    The hugetlb documentation has gotten a bit out of sync with the current code.
    Updated the sysctl file to refer to Documentation/vm/hugetlbpage.txt. Update
    that file to contain the current state of affairs (with the newer named sysctl
    in place).

    Signed-off-by: Nishanth Aravamudan
    Acked-by: Adam Litke
    Cc: William Lee Irwin III
    Cc: Dave Hansen
    Cc: David Gibson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nishanth Aravamudan
     

17 Jul, 2007

1 commit

  • e73a75fa7   hugetlbfs: use lib/parser, fix docs ... Browse Code »

    Use lib/parser.c to parse hugetlbfs mount options. Correct docs in
    hugetlbpage.txt.

    old size of hugetlbfs_fill_super: 675 bytes
    new size of hugetlbfs_fill_super: 686 bytes
    (hugetlbfs_parse_options() is inlined)

    Signed-off-by: Randy Dunlap
    Cc: Hugh Dickins
    Cc: David Gibson
    Cc: Adam Litke
    Acked-by: William Lee Irwin III
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Randy Dunlap
     

20 Apr, 2006

1 commit

  • 5e1222717   [PATCH] Doc: vm/hugetlbpage update-2 ... Browse Code »

    Add new line of /proc/meminfo output.

    Explain the HugePage_ lines in /proc/meminfo (from Bill Irwin).

    Change KB to kB since the latter is what is used in the kernel.

    Signed-off-by: Randy Dunlap
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Randy Dunlap
     

11 Apr, 2006

1 commit

07 Nov, 2005

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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