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Subject2.5.41-mm3

url: http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.41/2.5.41-mm3/

. Merged up John's latest 2.5 oprofile, so folks will have to wean
themselves off the crufty old one.

You'll have to grab the userspace tools from
http://oprofile.sourceforge.net/oprofile-2.5.html

Use:

mkdir /dev/oprofile # John forgot this
./configure --with-kernel-support
make install

Or just do what I didn't do and read the web page.

Quite a few things seem to have changed with oprofile. A typical
profiling cycle would now be:

rm -rf /var/lib/oprofile
op_start --ctr0-count=50000 --ctr0-event=CPU_CLK_UNHALTED \
--vmlinux=/path/to/vmlinux
<run test>
op_stop
sleep 3
oprofpp -l -i /boot/vmlinux
kill $(cat /var/lib/oprofile/lock)
You must kill the daemon by hand before you can run op_start
again.

. I've dropped the 512-byte O_DIRECT alignment patch for now. It's
over in the experimental directory. I'd like to get a decent round
of testing with the bio_add_page fix so we can get that into Linus
and get direct-io generally stabilised again before moving on.

. We've had some encouraging performance test results on the
shared pagetable code, but also a couple of crashes. The people
who are monitoring performance may want to try that out. It is
selectable in config.

. Turns out that the idea of unmapped mapped pagecache a little earlier
than swapping out anon memory was a poor one. Changed the VM so that
we treat these types of pages the same.

It would be really appreciated if people who are interested in "the
desktop experience" could give this patchset a try. It's working
well for me; but that's not a large sample...


-guruhugh.patch
-pte-highmem-warning.patch
-raw-use-o_direct.patch
-remove-radix_tree_reserve.patch
-ext3-yield.patch
-readv-writev-check-fix.patch

Merged

+kgdb.patch

Make things simpler for myself

+oprofile-25.patch

Latest version

+hugetlb-meminfo.patch

Change the layout of the hugetlbpage info in /proc/meminfo

+dio-bio-add-fix-1.patch

Direct-io fixes

+net-loopback.patch

Davem's patch to make the loopback device save a copy. Doesn't seem
to affect anything really.

-dio-fine-alignment.patch

Moved to ../experimental for now

+blkdev-o_direct-short-read.patch

Fix O_DIRECT-read-past-EOF for blockdevs

+msync-correctness.patch

msync() standards fix

+page_reserved-accounting.patch

Global accounting for PageReserved pages

+use-page_reserved_accounting.patch

Use the above in a couple of VM decision-making places

+shpte-ifdef.patch

Reduce shpte ifdeffery a little

+shpte-mprotect-fix.patch

Shared pagetable mprotect fix.




linus.patch
cset-1.573.100.12-to-1.738.txt.gz

kgdb.patch

oprofile-25.patch

misc.patch
misc

swsusp-feature.patch
add shrink_all_memory() for swsusp

hugetlb-meminfo.patch
change hugetlbpage info in /proc/meminfo

dio-bio-add-fix-1.patch
Fix direct-io for bio_add_page()

net-loopback.patch
Disable second copy in the network loopback driver

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

mapped-start-active.patch
start anonymous pages on the active list

rename-dirty_async_ratio.patch
rename dirty_async_ratio to dirty_ratio

auto-dirty-memory.patch
adaptive dirty-memory thresholding

batched-slab-asap.patch
batched slab shrinking and shrinker callback API

blkdev-o_direct-short-read.patch
Fix O_DIRECT blockdev reads at end-of-device

orlov-allocator.patch

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

msync-correctness.patch
msync correctness fix

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

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

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

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

ramfs-aops.patch
Move ramfs address_space ops into libfs

hugetlb-header-split.patch
Move hugetlb declarations into their own header

hugetlbfs.patch
hugetlbfs file system

hugetlb-shm.patch
hugetlbfs backing for SYSV shared memory

page_reserved-accounting.patch
Global PageReserved accounting

use-page_reserved_accounting.patch
Use PG_reserved accounting in the VM

ramfs-prepare-write-speedup.patch
correctness fixes in libfs address_space ops

akpm-deadline.patch
deadline scheduler tweaks

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

raid0-fix.patch
RAID0 fix

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

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

slab-split-10-list_for_each_fix.patch
slab: for a list walking bug

shpte.patch

shpte-ifdef.patch
reduced ifdeffery in the shared pagetable code

shpte-mprotect-fix.patch
fix shared pagetable handling of mprotect

read_barrier_depends.patch
extended barrier primitives

rcu_ltimer.patch
RCU core

dcache_rcu.patch
Use RCU for dcache
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