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Subject2.5.61-mm1

http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.61/2.5.61-mm1/

. Jens has fixed the request queue aliasing problem and we are no longer
able to break the IO scheduler. This was preventing the OSDL team from
running dbt2 against recent kernels, so hopefully that is all fixed up now.

. The anticipatory scheduler is performing well. I've included that now.

. Also included the CFQ I/O scheduler. The kernel defaults to using the
deadline/anticipatory scheduler. Select CFQ by adding "elevator=cfq" to
the kernel command line. Do "dmesg|grep elevator" to see which one you
are using.

. There is an updated version of the reiserfs_file_write patch here. This
patch addresses CPU efficiency when performing appending writes (ie: the
usual sort).

To do this, it requires that userspace pass "large" amounts of data into
the write() system call. So the filesystem returns a value of 128k in the
stat.st_blksize field from the stat(2) system call. In the hope that some
applications are using that kernel-provided hint.

Turns out that some parts of KDE (kmail, at least) were indeed using this
hint, and it triggers a nasty bug in (at least) kmail: it is reading the
same 128k of the file again and again and again. It runs like a dog.
Ed Tomlinson upgraded his KDE/kmail version and this problem went away.

So that is something for reiserfs users to keep an eye on.



Changes since 2.5.60-mm2:


-smctr-fix.patch

Merged

+deadline-alias-3.patch

Fix an elevator aliasing bug (was causing direct-io lockups and oopses)

+linear-gcc-workaround.patch

Work around a gcc-2.95.3 ICE in drivers/md/linear.c

+flush_tlb_all-preempt-safety.patch

Make flush_tlb_all preempt+SMP-safe

-reiserfs_file_write.patch
+reiserfs_file_write-3.patch

Updated

+tcp-wakeups.patch

Resurrect this patch which uses faster wakeups in ipv4. Worth 2% in a
famous web serving benchmark on an 8-way.

-deadline-hash-fix.patch

Obsoleted.

-cciss-2.patch
-cciss-3.patch
-cciss-5.patch
-cciss-6.patch
-cciss-7.patch
-cciss-8.patch
-cciss-9.patch
-cciss-10.patch
-cciss-11.patch

Merged into ciss-1.patch

+cciss-overrun-fix.patch

Fix a cciss_scsi bug

+ext3_debug-fix.patch

Fix ext3 build when EXT3_DEBUG is defined

+visws-1.patch
+visws-2.patch
+visws-3.patch
+visws-4.patch
+visws-5.patch
+visws-6.patch
+visws-7.patch
+visws-8.patch
+visws-9.patch
+visws-10.patch
+visws-11.patch
+visws-12.patch
+visws-13.patch

Resurrect visws support

+profiling-cleanup.patch

Consolidate kernel profiling code

+remove-unused-congestion-stuff.patch

Hugh keeps deleting all my lovely code.

+fix-Wundef.patch

Clean up the build with -Wundef

+scsi-fix-NCR53C9x.patch

Build fix

+radix_tree_maxindex-cleanup.patch

radix-tree simplification and cleanup

+tty-module-refcounting.patch

New module refcounting for the tty layer

+anticipatory_io_scheduling.patch
-ant-sched-9feb.patch
-ant-sched-12feb.patch

Rolled-up anticipatory scheduler diff

+cfq-2.patch

Complete Fair Queueing for the disk scheduler

+elevator-selection.patch

Allow CFQ to be selected with "elevator=cfq" on the kernel boot
commandline.



All 78 patches:

kgdb.patch

deadline-alias-3.patch

ppc64-reloc_hide.patch

ppc64-time-warning.patch
kill ppc64 unused var warning

xfs-warning-fixes.patch

xfs-cli-fix.patch
xfs interrupt flags fix

ppc64-smp_prepare_cpus-warning.patch
ppc64: fix warning

report-lost-ticks.patch
make lost-tick detection more informative

devfs-fix.patch

ptrace-flush.patch
Subject: [PATCH] ptrace on 2.5.44

buffer-debug.patch
buffer.c debugging

warn-null-wakeup.patch

jfs-build-fix.patch
JFS build fix with gcc-2.95.3

ext3-truncate-ordered-pages.patch
ext3: explicitly free truncated pages

linear-gcc-workaround.patch
work around gcc-2.95.3 internal compler error in linear.c

flush_tlb_all-preempt-safety.patch
Subject: [PATCH][2.5] flush_tlb_all is not preempt safe.

mandlock-fix.patch
Fix mandatory locking

fault_in_pages-move.patch
move fault_in_pages_readable/writeable to header

generic_write_checks.patch
separate checks from generic_file_aio_write

reiserfs_file_write-3.patch

ext3-eio-fix.patch
fix ext3 BUG due to race with truncate

tcp-wakeups.patch
Use fast wakeups in TCP/IPV4

deadline-np-42.patch
(undescribed patch)

deadline-np-43.patch
(undescribed patch)

batch-tuning.patch
I/O scheduler tuning

starvation-by-read-fix.patch
fix starvation-by-readers in the IO scheduler

crc32-speedup.patch
crc32 improvements for 2.5

scheduler-tunables.patch
scheduler tunables

sched-f3.patch
scheduler F3-updated

rml-scheduler-bits.patch
scheduler bits

lockd-lockup-fix.patch
Subject: Re: Fw: Re: 2.4.20 NFS server lock-up (SMP)

rcu-stats.patch
RCU statistics reporting

dcache_rcu-fast_walk-revert.patch
dcache_rcu: revert fast_walk code

dcache_rcu-main.patch
dcache_rcu

smalldevfs.patch
smalldevfs

ext3-journalled-data-assertion-fix.patch
Remove incorrect assertion from ext3

nfs-speedup.patch

nfs-oom-fix.patch
nfs oom fix

sk-allocation.patch
Subject: Re: nfs oom

nfs-more-oom-fix.patch

nfs-sendfile.patch
Implement sendfile() for NFS

rpciod-atomic-allocations.patch
Make rcpiod use atomic allocations

put_page-speedup.patch
hugetlb put_page speedup

kernel_lock_bug2.patch

ext2_ext3_listxattr-bug.patch
xattr: listxattr fix

xattr-flags.patch
xattr: infrastructure for permission overrides

xattr-flags-policy.patch
xattr: allow kernel code to override EA permissions

xattr-trusted.patch
xattr: trusted extended attributes

balance_dirty_pages-lockup-fix.patch
blk_congestion_wait tuning and lockup fix

cciss-1.patch
make cciss driver compile

cciss-overrun-fix.patch
Subject: [PATCH] 2.5.60, cciss, fix array bounds overrun

direct-io-retval-fix.patch
direct-io return value fix

dio-eof-read.patch
direct-io: allow reading of the part-filled EOF block

linux-isp.patch

linux-isp-update.patch

ext3_debug-fix.patch
Fix ext3 build when EXT#_DEBUG is defined

visws-1.patch
visws: allow SMP kernel build without io_apic.c (1/13)

visws-2.patch
visws: export some functions from i8259.c (2/13)

visws-3.patch
visws: make startup_32 kernel entry point (3/13)

visws-4.patch
visws: export boottime gdt descriptor (4/13)

visws-5.patch
visws: boot changes (5/13)

visws-6.patch
Subject: [PATCH] visws: move header file into asm/arch-visws (6/13)

visws-7.patch
visws: add missing mach_apic.h file (7/13)

visws-8.patch
visws: pci support (8/13)

visws-9.patch
visws: core (9/13)

visws-10.patch
visws: framebuffer driver update (10/13)

visws-11.patch
visws: sound update (11/13)

visws-12.patch
visws: MAINTAINERS file update (12/13)

visws-13.patch
visws: i386/KConfig update (13/13)

profiling-cleanup.patch
Subject: [PATCH]: consolidate and cleanup profiling code.

remove-unused-congestion-stuff.patch
Subject: [PATCH] remove unused congestion stuff

fix-Wundef.patch
Make the world safe for -Wundef

scsi-fix-NCR53C9x.patch
fix compile breakage on drivers/scsi/NCR53C9x.c

radix_tree_maxindex-cleanup.patch
Use table lookup for radix_tree_maxindex()

tty-module-refcounting.patch
TYT module refcounting fix

anticipatory_io_scheduling.patch
Subject: [PATCH] 2.5.59-mm3 antic io sched

cfq-2.patch
CFQ scheduler, #2

elevator-selection.patch
boot-time selection of disk elevator type


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