- 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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