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    Subject[PATCH 0/7][v2] zram/xvmalloc: 64K page fixes and optimizations
    Based on feedback this is version 2 of my patches to fix zram and the
    xvmalloc allocator for 64K page size kernels along with a few small
    zram optimizations.

    I have dropped the patch to mark the device as non-rotational media as
    this was duplicated elsewhere. I also dropped the patch regarding caching
    the indices for page size allocations because gcc is quite smart.

    There are two new patches at the end of this patch set. The first
    changes zram to return zero'd pages for reads of pages which have not
    been written to, this eliminates passing uninitialized pages back
    to user-space. The second new patch cleans up freelist pointer
    management and combines the two delete node functions into one common

    The xvmalloc allocator is non-functional when running with a 64K page
    size. The first two patches fix 64K page related issues.
    [1/7] [v2] zram/vmalloc: Correct tunings to enable use with 64K pages
    [2/7] [v2] zram: Prevent overflow in logical block size

    The next 3 patches provide some small optimizations for zram and
    [3/7] [v2] zram/xvmalloc: free bit block insertion optimization
    [4/7] [v2] zram/xvmalloc: create CONFIG_ZRAM_DEBUG for debug code
    [5/7] [v2] zram/xvmalloc: Close 32byte hole on 64bit CPUs

    These last 2 patches are new, see the description above.
    [6/7] zram: Return zero'd pages on new reads
    [7/7] zram/xvmalloc: combine duplicate block delete code

    Thanks for the helpful reviews.

    Robert Jennings

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      Last update: 2011-01-28 15:59    [W:0.021 / U:0.420 seconds]
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