lkml.org 
[lkml]   [2012]   [Jan]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCH 0/5] staging: zsmalloc: memory allocator for compressed pages
    Date
    This patchset introduces a new memory allocation library named
    zsmalloc. zsmalloc was designed to fulfill the needs
    of users where:
    1) Memory is constrained, preventing contiguous page allocations
    larger than order 0 and
    2) Allocations are all/commonly greater than half a page.

    In a generic allocator, an allocation set like this would
    cause high fragmentation. The allocations can't span non-
    contiguous page boundaries; therefore, the part of the page
    unused by each allocation is wasted.

    zsmalloc is a slab-based allocator that uses a non-standard
    malloc interface, requiring the user to map the allocation
    before accessing it. This allows allocations to span two
    non-contiguous pages using virtual memory mapping, greatly
    reducing fragmentation in the memory pool.

    Nitin Gupta (3):
    staging: zsmalloc: zsmalloc memory allocation library
    staging: zram: replace xvmalloc with zsmalloc
    staging: zram: remove xvmalloc

    Seth Jennings (2):
    staging: add zsmalloc to Kconfig/Makefile
    staging: zcache: replace xvmalloc with zsmalloc

    drivers/staging/Kconfig | 2 +
    drivers/staging/Makefile | 2 +-
    drivers/staging/zcache/Kconfig | 2 +-
    drivers/staging/zcache/zcache-main.c | 83 ++--
    drivers/staging/zram/Kconfig | 6 +-
    drivers/staging/zram/Makefile | 1 -
    drivers/staging/zram/xvmalloc.c | 510 --------------------
    drivers/staging/zram/xvmalloc.h | 30 --
    drivers/staging/zram/xvmalloc_int.h | 95 ----
    drivers/staging/zram/zram_drv.c | 89 ++--
    drivers/staging/zram/zram_drv.h | 10 +-
    drivers/staging/zram/zram_sysfs.c | 2 +-
    drivers/staging/zsmalloc/Kconfig | 11 +
    drivers/staging/zsmalloc/Makefile | 3 +
    drivers/staging/zsmalloc/zsmalloc-main.c | 756 ++++++++++++++++++++++++++++++
    drivers/staging/zsmalloc/zsmalloc.h | 31 ++
    drivers/staging/zsmalloc/zsmalloc_int.h | 126 +++++
    17 files changed, 1020 insertions(+), 739 deletions(-)
    delete mode 100644 drivers/staging/zram/xvmalloc.c
    delete mode 100644 drivers/staging/zram/xvmalloc.h
    delete mode 100644 drivers/staging/zram/xvmalloc_int.h
    create mode 100644 drivers/staging/zsmalloc/Kconfig
    create mode 100644 drivers/staging/zsmalloc/Makefile
    create mode 100644 drivers/staging/zsmalloc/zsmalloc-main.c
    create mode 100644 drivers/staging/zsmalloc/zsmalloc.h
    create mode 100644 drivers/staging/zsmalloc/zsmalloc_int.h

    --
    1.7.5.4



    \
     
     \ /
      Last update: 2012-01-09 23:55    [W:0.044 / U:30.044 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site