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Subject2.5.71-mm1

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.71/2.5.71-mm1/


Mainly a resync.

. Manfred sent me a revised unmap-page-debugging patch which promptly
broke. All slab changes have been dropped out so he can have a clear run
at that.

. New toy. Called, for the lack of a better name, "sleepometer":


An instrumentation patch which attempts to work out where all that idle
time is coming from.

cat /proc/sleepo

fs/select.c:255(schedule_timeout) 119 204415008 1717773 37026565
kernel/exit.c:1056(schedule) 10 47496358 4749635 23686014
fs/namei.c:1247(down) 1 53708 53708 53708
fs/namei.c:344(down) 4 67425 16856 33478
fs/jbd/journal.c:197(schedule) 5 96894718 19378943 44777091

Tells us that four down() attempts at fs/namei.c:344 blocked. The total
amount of time spent blocked was 67425 microseconds. The average was 16845
us and the maximum was 33478 us.

Bear in mind that if 100 processes block at a certain point for one
second, this tool will claim that 100 seconds were spent blocked at that
point.

Which is quite reasonable, but some care is needed when interpreting the
results.

The following operations are instrumented:

down()
down_read()
down_write()
schedule()
schedule_timeout()
io_schedule()
io_schedule_timeout()


CONFIG_SLEEPOMETER is currently broken with CONFIG_PREEMPT due to
#include hell.

Reading /proc/sleepo clears all the current stats.





Changes since 2.5.70-mm9:


linus.patch

Latest Linus tree

-generic-numa-fixes.patch
-compat_ioctl-fixes.patch
-synaptics.patch
-synaptics-cleanup.patch
-es7000-01-generic.patch
-es7000-02-subarch.patch
-ppc64-fixup.patch
-ppc64-knr-to-ansi.patch
-time-fixes-cleanup-1.patch
-time-fixes-cleanup-2.patch
-ppc64-do_settimeofday-update.patch
-sparc64-do_settimeofday-update.patch
-x86_64-do_settimeofday-update.patch
-ia64-do_settimeofday-update.patch
-parisc-do_settimeofday-update.patch
-s390-do_settimeofday-update.patch
-alpha-do_settimeofday-update.patch
-arm-do_settimeofday-update.patch
-cris-do_settimeofday-update.patch
-m68k-do_settimeofday-update.patch
-ppc-do_settimeofday-update.patch
-arm26-do_settimeofday-update.patch
-sh-do_settimeofday-update.patch
-sparc-do_settimeofday-update.patch
-um-do_settimeofday-update.patch
-v850-do_settimeofday-update.patch
-centrino-cpufreq-driver.patch
-ds-01-arcnet-oops-fix.patch
-remove_anon_hash_chain.patch
-sched-cleanup-2.patch
-shmem-license-revert.patch
-lsm-1-early-init.patch
-lsm-2-remove-hook.patch
-lsm-3-remove-inode_permission_lite.patch
-lsm-4-setfsuid-fix.patch
-writeback-memory-backed-fix.patch
-make-pid_max-readable.patch

Merged

+statfs64-3-fixes-1.patch

Fix reiserfs statfs() EOVERFLOW

-unmap-page-debugging-2.patch
-slab-poisoning-fix.patch

Dropped, pending some rework.

-mark-inode-dirty-debug.patch

Dropped

+remove-swapper_inode.patch

Remove swapper_inode.

+workqueue-reorg-fix.patch

CPU hotplug preparation

+yenta-unload-oops-fix.patch

Fix module unload crash

+task_struct-use-after-free-fix.patch

Fix task refcounting buglet

+rpc-depopulate-fix.patch

Fix NFS oopses

+sleepometer.patch

sleep instrumentation







All 159 patches:


linus.patch

mm.patch
add -mmN to EXTRAVERSION

kgdb-ga.patch
kgdb stub for ia32 (George Anzinger's one)

kgdb-use-ggdb.patch

HZ-100.patch

config_spinline.patch
uninline spinlocks for profiling accuracy.

ppc64-bat-initialisation-fix.patch
ppc64: BAT initialisation fix

ppc64-pci-update.patch

ppc64-reloc_hide.patch

ppc64-semaphore-reimplementation.patch
ppc64: use the ia32 semaphore implementation

sym-do-160.patch
make the SYM driver do 160 MB/sec

x86_64-fixes.patch
x86_64 fixes

irqreturn-snd-via-fix.patch
via sound irqreturn fix

config-PAGE_OFFSET.patch
Configurable kenrel/user memory split

lru_cache_add-check.patch
lru_cache_add debug check

delay-ksoftirqd-fallback.patch
Try harded in IRQ context before falling back to ksoftirqd

fb-image-depth-fix.patch
fbdev image depth fix

ds-09-vicam-usercopy-fix.patch
vicam usercopy fix

buffer-debug.patch
buffer.c debugging

show_stack-cleanup.patch
show_stack() portability and cleanup patch

ppc64-show_stack.patch

e100-use-after-free-fix.patch

statfs64-3.patch
Add system calls statfs64 and fstatfs64

statfs64-3-fixes-1.patch

VM_RESERVED-check.patch
VM_RESERVED check

rcu-stats.patch
RCU statistics reporting

ide_setting_sem-fix.patch

hugetlbfs-size-inodes-mount-option.patch
hugetlbfs: specify size & inodes at mount

reslabify-pgds-and-pmds.patch
re-slabify i386 pgd's and pmd's

linux-isp.patch

isp-update-1.patch

isp-remove-pci_detect.patch

list_del-debug.patch
list_del debug check

airo-schedule-fix.patch
airo.c: don't sleep in atomic regions

resurrect-batch_requests.patch
bring back the batch_requests function

kblockd.patch
Create `kblockd' workqueue

cfq-infrastructure.patch

elevator-completion-api.patch
elevator completion API

as-iosched.patch
anticipatory I/O scheduler

as-proc-read-write.patch
AS: pgbench improvement

as-discrete-read-fifo-batches.patch
AS: discrete read fifo batches

as-sync-async.patch
AS sync/async batches

as-hash-removal-fix.patch
AS: hash removal fix

as-jumbo-patch-for-scsi.patch
AS jumbo patch (for SCSI and TCQ)

as-stupid.patch
AS: fix stupid thinko

as-no-batch-antic-limit.patch
AS: no batch-antic-limit

as-autotune-write-batches.patch
AS: autotune write batches

as-div-by-zero-fix.patch
AS: divide by zero fix

as-more-HZ.patch
AS: more HZ != 1000 fixes

as-even-more-write-batch-tuning.patch
AS: update_write_batch tuning

as-locking.patch
AS locking

as-HZ.patch
AS HZ fixes

as-double-free-and-debug.patch
AS: fix a leak + more debugging

as-fix-seek-estimation.patch
AS: maybe repair performance drop of random read O_DIRECT

as-fix-seeky-loads.patch
AS: fix IBM's seek load

unplug-use-kblockd.patch
Use kblockd for running request queues

cfq-2.patch
CFQ scheduler, #2
CFQ: update to rq-dyn API

cfq-hash-removal-fix.patch
CFQ: hash removal fix

cfq-list_del-fix.patch
CFQ: empty the queuelist

per-queue-nr_requests.patch
per queue nr_requests

blk-invert-watermarks.patch
blk_congestion_wait threshold cleanup

blk-fair-batches.patch
blk-fair-batches

blk-as-hint.patch
blk-as-hint

get_request_wait-oom-fix.patch
handle OOM in get_request_wait().

blk-fair-batches-2.patch
blk fair batches #2

print-build-options-on-oops.patch
print a few config options on oops

mmap-prefault.patch
prefault of executable mmaps

bio-debug-trap.patch
BIO debugging patch

sound-irq-hack.patch

show_task-free-stack-fix.patch
show_task() fix and cleanup

put_task_struct-debug.patch

ia32-mknod64.patch
mknod64 for ia32

ext2-64-bit-special-inodes.patch
ext2: support for 64-bit device nodes

ext3-64-bit-special-inodes.patch
ext3: support for 64-bit device nodes

64-bit-dev_t-kdev_t.patch
64-bit dev_t and kdev_t

oops-dump-preceding-code.patch
i386 oops output: dump preceding code

lockmeter.patch

ext3-no-bkl.patch
ext3: move lock_kernel() down into the JBD layer.

journal_get_write_access-speedup.patch
JBD: journal_get_write_access() speedup

ext3-concurrent-block-inode-allocation.patch
ext3: concurrent block/inode allocation
Fix orlov allocator boundary case

ext3-concurrent-block-allocation-hashed.patch
ext3: scalable counters and locks
fix ext3 inode allocator race

jbd-010-b_committed_data-race-fix.patch
JBD: fix race over access to b_committed_data

jbd-020-locking-schema.patch
JBD: plan JBD locking schema

jbd-030-remove-splice_lock.patch
JBD: remove jh_splice_lock

jbd-040-journal_add_journal_head-locking.patch
JBD: fine-grain journal_add_journal_head locking

jbd-045-rename-journal_unlock_journal_head.patch
JBD: rename journal_unlock_journal_head to journal_put_journal_head

jbd-050-b_frozen_data-locking.patch
JBD: Finish protection of journal_head.b_frozen_data

jbd-060-b_committed_data-locking.patch
JBD: implement b_committed_data locking

jbd-070-b_transaction-locking.patch
JBD: implement b_transaction locking rules

jbd-080-b_next_transaction-locking.patch
JBD: Implement b_next_transaction locking rules

jbd-090-b_tnext-locking.patch
JBD: b_tnext locking

jbd-100-remove-journal_datalist_lock.patch
JBD: remove journal_datalist_lock

jbd-110-t_nr_buffers-locking.patch
JBD: t_nr_buffers locking

jbd-120-t_updates-locking.patch
JBD: t_updates locking

jbd-130-t_outstanding_credits-locking.patch
JBD: implement t_outstanding_credits locking

jbd-140-t_jcb-locking.patch
JBD: implement t_jcb locking

jbd-150-j_barrier_count-locking.patch
JBD: implement j_barrier_count locking

jbd-160-j_running_transaction-locking.patch
JBD: implement j_running_transaction locking

jbd-170-j_committing_transaction-locking.patch
JBD: implement j_committing_transaction locking

jbd-180-j_checkpoint_transactions.patch
JBD: implement j_checkpoint_transactions locking

jbd-190-j_head-locking.patch
JBD: implement journal->j_head locking

jbd-200-j_tail-locking.patch
JBD: implement journal->j_tail locking

jbd-210-j_free-locking.patch
JBD: implement journal->j_free locking

jbd-220-j_commit_sequence-locking.patch
JBD: implement journal->j_commit_sequence locking

jbd-230-j_commit_request-locking.patch
JBD: implement j_commit_request locking

jbd-240-dual-revoke-tables.patch
JBD: implement dual revoke tables.

jbd-250-remove-sleep_on.patch
JBD: remove remaining sleep_on()s

jbd-300-remove-lock_kernel.patch
JBD: remove lock_kernel()

jbd-400-remove-lock_journal.patch
JBD: remove lock_journal()

jbd-510-h_credits-fix.patch
JBD: journal_release_buffer: handle credits fix

jbd-520-journal_unmap_buffer-race.patch
JBD: journal_unmap_buffer race fix

jbd-530-walk_page_buffers-race-fix.patch
ext3: ext3_writepage race fix

jbd-540-journal_try_to_free_buffers-race-fix.patch
JBD: buffer freeing non-race comment

jbd-550-locking-checks.patch
JBD: add some locking assertions

jbd-570-transaction-state-locking.patch
JBD: additional transaction shutdown locking

jbd-580-log_start_commit-race-fix.patch
JBD: fix log_start_commit race

jbd-590-do_get_write_access-speedup.patch
JBD: do_get_write_access() speedup

ext3-010-fix-journalled-data.patch
ext3: fix data=journal mode

ext3-035-journal_try_to_free_buffers-race-fix.patch

ext3-040-recursive-ext3_write_inode-check.patch
ext3: add a dump_stack()

ext3-050-ioctl-transaction-leak.patch
ext3: fix error-path handle leak

ext3-070-xattr-clone-leak-fix.patch
Fix leak in ext3_acl_chmod()

ext3-080-remove-block-inode-count-message.patch
ext3: remove mount-time diagnostic messages

jbd-600-journal_dirty_metadata-speedup.patch
JBD: journal_dirty_metadata() speedup

jbd-610-journal_dirty_metadata-diags.patch
JBD: journal_dirty_metadata diagnostics

jbd-620-commit-vs-start-race-fix.patch
JBD: fix race between journal_commit_transaction and start_this_handle

ext3-090-journalled-writepage-vs-truncate-fix.patch
ext3: fix data=journal for small blocksize

jbd-630-remove-j_commit_timer_active.patch
JBD: remove j_commit_timer_active

jbd-650-truncate-ordered-pages.patch
ext3: explicitly free truncated pages

jbd-660-log_do_checkpoint-fix.patch
JBD: log_do_checkpoint() locking fixes

jbd-670-log_start_commit-locking-fix.patch
JBD: fix locking around log_start_commit()

jbd-680-log_wait_for_space-fix.patch
JBD: hold onto j_state_lock after log_wait_for_space().

invalidate_mmap_range.patch
Interface to invalidate regions of mmaps

aio-01-retry.patch
AIO: Core retry infrastructure

aio-02-lockpage_wq.patch
AIO: Async page wait

aio-03-fs_read.patch
AIO: Filesystem aio read

aio-04-buffer_wq.patch
AIO: Async buffer wait

aio-05-fs_write.patch
AIO: Filesystem aio write

aio-05-fs_write-fix.patch

aio-06-bread_wq.patch
AIO: Async block read

aio-06-bread_wq-fix.patch

aio-07-ext2getblk_wq.patch
AIO: Async get block for ext2

aio-poll.patch
aio_poll
aio-poll: don't put extern decls in .c!

O_SYNC-speedup-2.patch
speed up O_SYNC writes

aio-09-o_sync.patch
aio O_SYNC

aio-10-BUG-fix.patch
AIO: fix a BUG

aio-11-workqueue-flush.patch
AIO: flush workqueues before destroying ioctx'es

aio-12-readahead.patch
AIO: readahead fixes

vfsmount_lock.patch
From: Maneesh Soni <maneesh@in.ibm.com>
Subject: [patch 1/2] vfsmount_lock

syncppp-locking-fix.patch
syncppp locking fix

sched-hot-balancing-fix.patch
fix for CPU scheduler load distribution

truncate-pagefault-race-fix.patch
Fix vmtruncate race and distributed filesystem race

remove-swapper_inode.patch
remove swapper_inode

sync-write-more-pages.patch
dirty inode writeback fix

workqueue-reorg-fix.patch
workqueue.c subtle fix and core extraction

yenta-unload-oops-fix.patch
fix yenta unload oops

task_struct-use-after-free-fix.patch
proc_pid_lookup use-after-free fix

rpc-depopulate-fix.patch
Subject: Re: Linux 2.5.71

sleepometer.patch
sleep instrumentation



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