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    Subject2.5.40-mm2

    url: http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.40/2.5.40-mm2/

    - Peter Chubb's 64-bit sector_t patches have been included. These
    are working fine and are a 2.6 must-have, IMO.

    - Included Manfred's slab rework. No problems observed there.

    - The per-cpu hot-n-cold pages code continues to disappoint. For some
    weird reason, the enormous lock contention which was observed in
    rmqueue and __free_pages_ok in 2.5.9 has vanished in 2.5.40 on
    the big ppc64 boxen. So these patches fix something which isn't
    there any more. Could be related to the hardware (which changed);
    we're still poking at it.

    One test which involves repeatedly writing and then truncating smallish
    files was sped up 60%, which indicates that the cache locality stuff
    is working correctly, but it's a bit artificial.

    Ingo said that his 2.4-based per-cpu-pages patch was beneficial to
    specweb, but nobody has tested these patches with specweb. Hint.

    - Started work on /proc/sys/vm/swappiness. Setting it to 100% gives
    you current 2.5 behaviour. Setting it to 0 feels pretty similar to
    2.4.19.

    I ran it for half a day; seems to work OK. Although running a KDE
    desktop on dual 25" monitors in 96 megabytes is not a ton of fun.

    More things to be done on this. If anyone tests this code on a
    small machine, you really do need to set /proc/sys/vm/dirty_async_ratio
    to 15. I'll be making this dynamic.

    - Started work on a page reservation API to solve the problem of ENOMEM
    during radix-tree and pte_chain allocations. It's untested and unused
    at present.

    - Dropped the sard patch for now - it kept on getting stomped by the
    gendisk rework.


    +discontig-setup-fix.patch

    A discontigmem compile fix

    +remove-get_free_page.patch

    Remove get_free_page() from the kernel API.

    +wli-libfs.patch

    Move some library functions from ramfs to libfs

    +hugetlb-prefault.patch

    Factor out some hugetlb code - preparation for hugetlbfs

    -misc.patch
    -ioperm-fix.patch
    -radix_tree_gang_lookup.patch
    -truncate_inode_pages.patch
    -proc_vmstat.patch
    -kswapd-reclaim-stats.patch
    -iowait.patch
    -bd-sard.patch
    -dio-bio-add-page.patch
    -tcp-wakeups.patch
    -swapoff-deadlock.patch
    -dirty-and-uptodate.patch
    -shmem_rename.patch
    -dirent-size.patch
    -tmpfs-trivia.patch
    -per-zone-vm.patch
    swsusp-feature.patch
    -bio-get-nr-vecs.patch
    -dio-nr-segs.patch
    -remove-page-virtual.patch
    -dirty-memory-clamp.patch
    -mempool-wakeup-fix.patch
    -remove-write_mapping_buffers.patch
    -buffer_boundary-scheduling.patch
    -ll_rw_block-cleanup.patch

    Merged

    +dio-fine-alignment.patch

    Permit 512-byte-aligned direct IO against larger-than-512-byte blocksize
    filesystems.

    +lbd1.patch
    +lbd2.patch
    +lbd3.patch
    +lbd4.patch
    +lbd5.patch
    +lbd6.patch

    64-bit sector_t option.

    +64-bit-sector_t.patch

    Make 64-bit sector_t's compulsory in config (accellerated testing)

    +page-reservation.patch

    Page reervation API

    +slab-split-01-rename.patch
    +slab-split-02-SMP.patch
    +slab-split-03-tail.patch
    +slab-split-04-drain.patch
    +slab-split-05-name.patch
    +slab-split-06-mand-cpuarray.patch
    +slab-split-07-inline.patch
    +slab-split-08-reap.patch

    slab rework

    +cpucache_init-fix.patch

    Fix the above

    +large-queue-throttle.patch

    Fixed writer throttling for tiny machines which have large disk queues

    +exit-page-referenced.patch

    Propagate the pte referenced bit into PG_referenced for pagecache pages
    during pagetable teardown

    +swappiness.patch

    /proc/sys/vm/swappiness








    linus.patch
    cset-1.663.1.1-to-1.752.txt.gz

    discontig-setup-fix.patch
    discontigmem compile fix

    discontig-no-contig_page_data.patch
    undefine contif_page_data for discontigmem

    per-node-mem_map.patch
    ia32 NUMA: per-node ZONE_NORMAL

    remove-get_free_page.patch
    remove get_free_page()

    alloc_pages_node-cleanup.patch
    alloc_pages_node cleanup

    free_area_init-cleanup.patch
    free_area_init_node cleanup

    wli-libfs.patch
    Move dentry library functions from ramfs to libfs

    hugetlb-prefault.patch
    hugetlbpages: factor out some code for hugetlbfs

    ext3-dxdir.patch
    ext3 htree

    spin-lock-check.patch
    spinlock/rwlock checking infrastructure

    rd-cleanup.patch
    Cleanup and fix the ramdisk driver (doesn't work right yet)

    write-deadlock.patch
    Fix the generic_file_write-from-same-mmapped-page deadlock

    swsusp-feature.patch
    add shrink_all_memory() for swsusp

    lseek-ext2_readdir.patch
    remove lock_kernel() from ext2_readdir()

    dio-fine-alignment.patch
    Allow O_DIRECT to use 512-byte alignment

    batched-slab-asap.patch
    batched slab shrinking

    lbd1.patch
    64-bit sector_t 1/5

    lbd2.patch
    64-bit sector_t 2/5

    lbd3.patch
    64-bit sector_t 3/5

    lbd4.patch
    64-bit sector_t 4/5

    lbd5.patch
    64-bit sector_t 5/5

    lbd6.patch
    64-bit sector_t 6/5

    64-bit-sector_t.patch
    Hardwire CONFIG_LBD to "on"

    akpm-deadline.patch
    deadline scheduler tweaks

    rmqueue_bulk.patch
    bulk page allocator

    free_pages_bulk.patch
    Bulk page freeing function

    hot_cold_pages.patch
    Hot/Cold pages and zone->lock amortisation

    readahead-cold-pages.patch
    Use cache-cold pages for pagecache reads.

    pagevec-hot-cold-hint.patch
    hot/cold hints for truncate and page reclaim

    page-reservation.patch
    Page reservation API

    intel-user-copy.patch
    Faster copt_*_user for Intel ia32 CPUs

    slab-split-01-rename.patch
    slab cleanup: rename static functions

    slab-split-02-SMP.patch
    slab: enable the cpu arrays on uniprocessor

    slab-split-03-tail.patch
    slab: reduced internal fragmentation

    slab-split-04-drain.patch
    slab: take the spinlock in the drain function.

    slab-split-05-name.patch
    slab: remove spaces from /proc identifiers

    slab-split-06-mand-cpuarray.patch
    slab: cleanups and speedups

    slab-split-07-inline.patch
    slab: uninline poisoning checks

    slab-split-08-reap.patch
    slab: reap timers

    cpucache_init-fix.patch
    cpucache_init fix

    large-queue-throttle.patch
    Improve writer throttling for small machines

    exit-page-referenced.patch
    Propagate pte referenced bit into pagecache during unmap

    swappiness.patch
    swappiness control

    read_barrier_depends.patch
    extended barrier primitives

    rcu_ltimer.patch
    RCU core

    dcache_rcu.patch
    Use RCU for dcache
    -
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