Mel Gorman
3f6c82728f
mm: migration: take a reference to the anon_vma before migrating ...
This patchset is a memory compaction mechanism that reduces external
fragmentation memory by moving GFP_MOVABLE pages to a fewer number of
pageblocks. The term "compaction" was chosen as there are is a number of
mechanisms that are not mutually exclusive that can be used to defragment
memory. For example, lumpy reclaim is a form of defragmentation as was
slub "defragmentation" (really a form of targeted reclaim). Hence, this
is called "compaction" to distinguish it from other forms of
defragmentation.
In this implementation, a full compaction run involves two scanners
operating within a zone - a migration and a free scanner. The migration
scanner starts at the beginning of a zone and finds all movable pages
within one pageblock_nr_pages-sized area and isolates them on a
migratepages list. The free scanner begins at the end of the zone and
searches on a per-area basis for enough free pages to migrate all the
pages on the migratepages list. As each area is respectively migrated or
exhausted of free pages, the scanners are advanced one area. A compaction
run completes within a zone when the two scanners meet.
This method is a bit primitive but is easy to understand and greater
sophistication would require maintenance of counters on a per-pageblock
basis. This would have a big impact on allocator fast-paths to improve
compaction which is a poor trade-off.
It also does not try relocate virtually contiguous pages to be physically
contiguous. However, assuming transparent hugepages were in use, a
hypothetical khugepaged might reuse compaction code to isolate free pages,
split them and relocate userspace pages for promotion.
Memory compaction can be triggered in one of three ways. It may be
triggered explicitly by writing any value to /proc/sys/vm/compact_memory
and compacting all of memory. It can be triggered on a per-node basis by
writing any value to /sys/devices/system/node/nodeN/compact where N is the
node ID to be compacted. When a process fails to allocate a high-order
page, it may compact memory in an attempt to satisfy the allocation
instead of entering direct reclaim. Explicit compaction does not finish
until the two scanners meet and direct compaction ends if a suitable page
becomes available that would meet watermarks.
The series is in 14 patches. The first three are not "core" to the series
but are important pre-requisites.
Patch 1 reference counts anon_vma for rmap_walk_anon(). Without this
patch, it's possible to use anon_vma after free if the caller is
not holding a VMA or mmap_sem for the pages in question. While
there should be no existing user that causes this problem,
it's a requirement for memory compaction to be stable. The patch
is at the start of the series for bisection reasons.
Patch 2 merges the KSM and migrate counts. It could be merged with patch 1
but would be slightly harder to review.
Patch 3 skips over unmapped anon pages during migration as there are no
guarantees about the anon_vma existing. There is a window between
when a page was isolated and migration started during which anon_vma
could disappear.
Patch 4 notes that PageSwapCache pages can still be migrated even if they
are unmapped.
Patch 5 allows CONFIG_MIGRATION to be set without CONFIG_NUMA
Patch 6 exports a "unusable free space index" via debugfs. It's
a measure of external fragmentation that takes the size of the
allocation request into account. It can also be calculated from
userspace so can be dropped if requested
Patch 7 exports a "fragmentation index" which only has meaning when an
allocation request fails. It determines if an allocation failure
would be due to a lack of memory or external fragmentation.
Patch 8 moves the definition for LRU isolation modes for use by compaction
Patch 9 is the compaction mechanism although it's unreachable at this point
Patch 10 adds a means of compacting all of memory with a proc trgger
Patch 11 adds a means of compacting a specific node with a sysfs trigger
Patch 12 adds "direct compaction" before "direct reclaim" if it is
determined there is a good chance of success.
Patch 13 adds a sysctl that allows tuning of the threshold at which the
kernel will compact or direct reclaim
Patch 14 temporarily disables compaction if an allocation failure occurs
after compaction.
Testing of compaction was in three stages. For the test, debugging,
preempt, the sleep watchdog and lockdep were all enabled but nothing nasty
popped out. min_free_kbytes was tuned as recommended by hugeadm to help
fragmentation avoidance and high-order allocations. It was tested on X86,
X86-64 and PPC64.
Ths first test represents one of the easiest cases that can be faced for
lumpy reclaim or memory compaction.
1. Machine freshly booted and configured for hugepage usage with
a) hugeadm --create-global-mounts
b) hugeadm --pool-pages-max DEFAULT:8G
c) hugeadm --set-recommended-min_free_kbytes
d) hugeadm --set-recommended-shmmax
The min_free_kbytes here is important. Anti-fragmentation works best
when pageblocks don't mix. hugeadm knows how to calculate a value that
will significantly reduce the worst of external-fragmentation-related
events as reported by the mm_page_alloc_extfrag tracepoint.
2. Load up memory
a) Start updatedb
b) Create in parallel a X files of pagesize*128 in size. Wait
until files are created. By parallel, I mean that 4096 instances
of dd were launched, one after the other using &. The crude
objective being to mix filesystem metadata allocations with
the buffer cache.
c) Delete every second file so that pageblocks are likely to
have holes
d) kill updatedb if it's still running
At this point, the system is quiet, memory is full but it's full with
clean filesystem metadata and clean buffer cache that is unmapped.
This is readily migrated or discarded so you'd expect lumpy reclaim
to have no significant advantage over compaction but this is at
the POC stage.
3. In increments, attempt to allocate 5% of memory as hugepages.
Measure how long it took, how successful it was, how many
direct reclaims took place and how how many compactions. Note
the compaction figures might not fully add up as compactions
can take place for orders other than the hugepage size
X86 vanilla compaction
Final page count 913 916 (attempted 1002)
pages reclaimed 68296 9791
X86-64 vanilla compaction
Final page count: 901 902 (attempted 1002)
Total pages reclaimed: 112599 53234
PPC64 vanilla compaction
Final page count: 93 94 (attempted 110)
Total pages reclaimed: 103216 61838
There was not a dramatic improvement in success rates but it wouldn't be
expected in this case either. What was important is that fewer pages were
reclaimed in all cases reducing the amount of IO required to satisfy a
huge page allocation.
The second tests were all performance related - kernbench, netperf, iozone
and sysbench. None showed anything too remarkable.
The last test was a high-order allocation stress test. Many kernel
compiles are started to fill memory with a pressured mix of unmovable and
movable allocations. During this, an attempt is made to allocate 90% of
memory as huge pages - one at a time with small delays between attempts to
avoid flooding the IO queue.
vanilla compaction
Percentage of request allocated X86 98 99
Percentage of request allocated X86-64 95 98
Percentage of request allocated PPC64 55 70
This patch:
rmap_walk_anon() does not use page_lock_anon_vma() for looking up and
locking an anon_vma and it does not appear to have sufficient locking to
ensure the anon_vma does not disappear from under it.
This patch copies an approach used by KSM to take a reference on the
anon_vma while pages are being migrated. This should prevent rmap_walk()
running into nasty surprises later because anon_vma has been freed.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:06:58 -07:00
Merge branch 'devel-stable' into devel
2010-05-17 17:24:04 +01:00
caif: Rewritten socket implementation
2010-04-28 12:55:14 -07:00
can: sja1000 platform data fixes
2010-05-17 22:39:48 -07:00
decompress: fix new decompressor for PIC
2010-03-12 15:52:44 -08:00
Revert "V4L/DVB: Add FE_CAN_PSK_8 to allow apps to identify PSK_8 capable DVB devices"
2010-05-19 12:57:48 -03:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
2010-05-20 09:41:44 -07:00
Input: add Analog Devices AD714x captouch input driver
2010-04-13 23:27:16 -07:00
sh: allow platforms to specify SD-card supported voltages
2010-05-22 17:05:22 +09:00
IB/mlx4: Add support for masked atomic operations
2010-04-21 16:37:49 -07:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
2010-04-15 16:21:34 -04:00
mtd: nand: support alternate BB marker locations on MLC
2010-05-14 01:56:12 +01:00
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
netfilter: remove stale declaration for ip6_masked_addrcmp()
2010-03-08 13:17:01 +01:00
nfsd: further comment typos
2010-05-03 08:33:00 -04:00
regulator: Let drivers know when they use the stub API
2010-04-19 13:17:10 +01:00
Merge branch 'master' into for-davem
2010-04-23 14:43:45 -04:00
ssb: Fix order of definitions and some text space indents
2010-04-26 13:51:09 -04:00
SUNRPC: Don't spam gssd with upcall requests when the kerberos key expired
2010-05-14 15:09:37 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
2010-05-20 21:26:12 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
sysctl extern cleanup: acct
2010-03-12 15:53:10 -08:00
x86, acpi/irq: Teach acpi_get_override_irq to take a gsi not an isa_irq
2010-05-04 13:34:27 -07:00
ahci: Add platform driver
2010-05-14 17:08:01 -04:00
serial: Add driver for the Altera JTAG UART
2010-05-21 09:34:30 -07:00
serial: Add driver for the Altera UART
2010-05-21 09:34:30 -07:00
libata-sff: prd is BMDMA specific
2010-05-19 13:38:54 -04:00
writeback: fixups for !dirty_writeback_centisecs
2010-05-21 20:00:35 +02:00
backlight: Allow properties to be passed at registration
2010-03-16 19:47:54 +00:00
coredump: pass mm->flags as a coredump parameter for consistency
2010-03-06 11:26:46 -08:00
Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 09:17:01 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
2010-05-21 15:26:46 -07:00
cgroup: Check task_lock in task_subsys_state()
2010-05-04 09:25:02 -07:00
Document Linux's circular buffering capabilities
2010-03-24 16:31:22 -07:00
clockevents: Sanitize min_delta_ns adjustment and prevent overflows
2010-03-12 19:10:29 +01:00
clocksource: Add clocksource_register_hz/khz interface
2010-05-10 14:24:26 +02:00
coda: move backing-dev.h kernel include inside __KERNEL__
2010-04-28 09:20:33 +02:00
Add generic sys_old_select()
2010-03-12 15:52:32 -08:00
coredump: plug a memory leak situation on dump_seek()
2010-03-12 15:52:32 -08:00
cpufreq: Unify sysfs attribute definition macros
2010-04-09 14:07:56 -07:00
cpumask: let num_*_cpus() function always return unsigned values
2010-03-06 11:26:29 -08:00
cpuset,mm: fix no node to alloc memory when changing cpuset's mems
2010-05-25 08:06:57 -07:00
rcu: Use wrapper function instead of exporting tasklist_lock
2010-03-04 11:46:14 +01:00
crypto: Use ARCH_KMALLOC_MINALIGN for CRYPTO_MINALIGN now that it's exposed
2010-05-19 22:03:14 +03:00
Fix the regression created by "set S_DEAD on unlink()..." commit
2010-05-15 07:16:33 -04:00
remove DCB_PROTO_VERSION as we don't do netlink versioning
2010-04-22 18:32:12 -07:00
Debugobjects transition check
2010-05-10 16:08:01 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
dm table: remove unused dm_get_device range parameters
2010-03-06 02:32:27 +00:00
Merge remote branch 'origin' into secretlab/next-devicetree
2010-05-22 00:36:56 -06:00
dm: eliminate some holes data structures
2010-03-06 02:32:33 +00:00
dm ioctl: introduce flag indicating uevent was generated
2010-03-06 02:32:31 +00:00
dma-mapping: dma-mapping.h: add dma_set_coherent_mask
2010-03-12 15:52:42 -08:00
Merge branch 'ioat' into dmaengine
2010-05-17 16:30:58 -07:00
quota: unify ->set_dqblk
2010-05-21 19:30:44 +02:00
drbd: This is now equivalent to drbd release 8.3.8rc1
2010-05-21 21:12:01 +02:00
drbd: Four new configuration settings for resync speed control
2010-05-18 01:25:00 +02:00
drbd: Four new configuration settings for resync speed control
2010-05-18 01:25:00 +02:00
ds2782_battery: Add support for ds2786 battery gas gauge
2010-04-26 22:03:42 +04:00
blkio: Add io_merged stat
2010-04-09 08:36:07 +02:00
[S390] add breaking event address for user space
2010-05-17 10:00:15 +02:00
linux/elfcore.h: hide kernel functions
2010-05-21 20:29:10 -07:00
net: fix ethtool coding style errors and warnings
2010-04-07 21:54:42 -07:00
ext2: Add ext2_sb_info s_lock spinlock
2010-05-21 19:30:39 +02:00
ext3: fix broken handling of EXT3_STATE_NEW
2010-03-29 14:30:19 -07:00
ext3: fix broken handling of EXT3_STATE_NEW
2010-03-29 14:30:19 -07:00
vga16fb, drm: vga16fb->drm handoff
2010-05-18 16:19:30 +10:00
pipe: add support for shrinking and growing pipes
2010-05-21 21:12:40 +02:00
net: rtnetlink: decouple rtnetlink address families from real address families
2010-04-26 16:13:54 +02:00
net: Socket filter ancilliary data access for skb->dev->type
2010-04-22 16:05:44 -07:00
firewire: cdev: fix cut+paste mistake in disclaimer
2010-04-15 22:18:36 +02:00
firewire: cdev: fix cut+paste mistake in disclaimer
2010-04-15 22:18:36 +02:00
memory-hotplug: create /sys/firmware/memmap entry for new memory
2010-03-06 11:26:25 -08:00
firmware_class: fix memory leak - free allocated pages
2010-05-21 09:37:28 -07:00
Freezer: Fix buggy resume test for tasks frozen with cgroup freezer
2010-03-26 23:51:44 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2010-05-21 19:37:45 -07:00
SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUG
2010-03-29 09:14:47 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 08:35:04 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
2010-05-21 07:19:18 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
fs: xattr_handler table should be const
2010-05-21 18:31:18 -04:00
netlink: Export genl_lock() API for use by modules
2010-04-03 14:56:05 -07:00
Remove GENHD_FL_DRIVERFS
2010-03-16 08:55:32 +01:00
mm: add comment about deprecation of __GFP_NOFAIL
2010-03-06 11:26:27 -08:00
tty: n_gsm line discipline
2010-05-21 09:34:29 -07:00
Merge branches 'upstream-fixes', 'bkl-removal', 'debugfs-fixes' and 'hid-suspend' into for-linus
2010-05-19 14:05:06 +02:00
hrtimers: Provide schedule_hrtimeout for CLOCK_REALTIME
2010-04-06 21:50:03 +02:00
mfd: Add HTCPLD driver
2010-03-07 22:17:09 +01:00
hw-breakpoints: Get the number of available registers on boot dynamically
2010-05-01 04:32:14 +02:00
i2c-algo-bit: Add pre- and post-xfer hooks
2010-03-13 20:56:56 +01:00
i2c-omap: add mpu wake up latency constraint in i2c
2010-05-20 00:18:59 +01:00
i2c: Add SMBus alert support
2010-03-02 12:23:42 +01:00
Add the platform data include for the Xilinx XPS IIC Bus Interface
2010-03-14 11:14:58 -07:00
Merge remote branch 'origin' into secretlab/next-devicetree
2010-05-22 00:36:56 -06:00
i2o: Remove the dangerous kobj_to_i2o_device macro
2010-03-24 08:20:03 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
2010-05-24 08:05:29 -07:00
mac80211: add flags for STBC (Space-Time Block Coding)
2010-04-20 11:52:21 -04:00
netpoll: add generic support for bridge and bonding devices
2010-05-06 00:47:21 -07:00
net-caif: add CAIF protocol definitions
2010-03-30 19:08:43 -07:00
net-caif: add CAIF protocol definitions
2010-03-30 19:08:43 -07:00
net: Add netlink support for virtual port management (was iovnl)
2010-05-17 22:49:55 -07:00
net: adjust handle_macvlan to pass port struct to hook
2010-05-15 23:48:02 -07:00
packet: support for TX time stamps on RAW sockets
2010-04-13 01:30:48 -07:00
l2tp: Update PPP-over-L2TP driver to work over L2TPv3
2010-04-03 14:56:04 -07:00
l2tp: Update PPP-over-L2TP driver to work over L2TPv3
2010-04-03 14:56:04 -07:00
tun: add ioctl to modify vnet header size
2010-05-03 12:33:13 +03:00
if_tunnel.h: add missing ams/byteorder.h include
2010-03-21 21:19:02 -07:00
X25: Add if_x25.h and x25 to device identifiers
2010-04-22 16:12:36 -07:00
IPv6: data structure changes for new socket options
2010-04-23 23:35:28 -07:00
rcu: remove all rcu head initializations, except on_stack initializations
2010-05-11 16:10:47 -07:00
Input: add Analog Devices AD714x captouch input driver
2010-04-13 23:27:16 -07:00
interrupt.h: fix fatal kernel-doc error
2010-05-21 10:48:12 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
cgroups: blkio subsystem as module
2010-03-12 15:52:36 -08:00
iommu-api: Remove iommu_{un}map_range functions
2010-03-07 18:01:13 +01:00
resource: shared I/O region support
2010-05-11 12:01:10 -07:00
nsproxy: remove INIT_NSPROXY()
2010-03-12 15:52:40 -08:00
ipmi: remove ipmi_smi.h self-include
2010-03-12 15:52:40 -08:00
ipv6: ip6mr: support multiple tables
2010-05-11 14:40:55 +02:00
genirq: Add CPU mask affinity hint
2010-05-03 11:50:57 +02:00
isapnp: move definitions to mod_devicetable.h so file2alias can reach them.
2010-05-19 17:33:38 +09:30
ibft, x86: Change reserve_ibft_region() to find_ibft_region()
2010-04-01 16:12:48 -07:00
jbd: Provide function to check whether transaction will issue data barrier
2010-05-21 19:30:40 +02:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
X25: Add if_x25.h and x25 to device identifiers
2010-04-22 16:12:36 -07:00
printk,kdb: capture printk() when in kdb shell
2010-05-20 21:04:27 -05:00
Merge git://git.infradead.org/iommu-2.6
2010-05-21 17:25:01 -07:00
Merge branch 'master' into for-next
2010-04-23 02:08:44 +02:00
x86, kgdb, init: Add early and late debug states
2010-05-20 21:04:29 -05:00
sysctl extern cleanup: module
2010-03-12 15:53:10 -08:00
kobj: add comment and multiple inclusion protection
2010-03-15 15:29:39 +01:00
netns: Teach network device kobjects which namespace they are in.
2010-05-21 09:37:32 -07:00
kref: remove kref_set
2010-05-21 09:37:29 -07:00
ks8842: Add platform data for setting mac address
2010-04-21 16:33:29 -07:00
ktime: introduce ktime_to_ms()
2010-05-14 15:09:32 -04:00
KVM: PPC: Add OSI hypercall interface
2010-05-17 12:17:10 +03:00
KVM: Let vcpu structure alignment be determined at runtime
2010-05-19 11:36:29 +03:00
l2tp: Add netlink control API for L2TP
2010-04-03 14:56:05 -07:00
block: Fix overrun in lcm() and move it to lib
2010-03-15 12:47:59 +01:00
libata-sff: separate out BMDMA qc_issue
2010-05-19 13:38:55 -04:00
lib: fix first line of kernel-doc for a few functions
2010-03-06 11:26:35 -08:00
lockdep: Add novalidate class for dev->mutex conversion
2010-05-21 09:37:30 -07:00
LSM Audit: rename LSM_AUDIT_NO_AUDIT to LSM_AUDIT_DATA_NONE
2010-04-28 08:51:12 +10:00
memcg: fix oom kill behavior
2010-03-12 15:52:38 -08:00
memory hotplug: allow setting of phys_device
2010-03-17 18:43:47 -07:00
mempolicy: restructure rebinding-mempolicy functions
2010-05-25 08:06:57 -07:00
V4L/DVB: meye: remove last V4L1 remnants from the code and add v4l2_device
2010-05-18 00:52:36 -03:00
mm: remove return value of putback_lru_pages()
2010-05-25 08:06:57 -07:00
Merge branch 'linus' into perf/core
2010-04-08 13:37:18 +02:00
nommu: fix build breakage
2010-03-12 15:52:28 -08:00
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
take check for new events in namespace (guts of mounts_poll()) to namespace.c
2010-03-03 14:07:59 -05:00
Merge branch 'modules' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
2010-05-21 17:15:44 -07:00
Merge branch 'linus' into tracing/core
2010-04-08 10:18:47 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2010-03-04 08:15:33 -08:00
ipv4: ipmr: support multiple tables
2010-04-13 14:49:34 -07:00
ipv6: ip6mr: support multiple tables
2010-05-11 14:40:55 +02:00
drivers: video: msm: add include msm_mdp.h
2010-04-28 15:16:48 -07:00
ncpfs: BKL ioctl pushdown
2010-05-17 05:27:42 +02:00
ncpfs: add bdi backing to mount session
2010-04-22 12:31:11 +02:00
net: sock_def_readable() and friends RCU conversion
2010-05-01 15:00:15 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
2010-05-20 21:04:44 -07:00
netfilter: bridge-netfilter: fix refragmenting IP traffic encapsulated in PPPoE traffic
2010-04-20 16:22:01 +02:00
netfilter: ip6table_raw: fix table priority
2010-03-25 11:17:26 +01:00
netlink: Implment netlink_broadcast_filtered
2010-05-21 09:37:32 -07:00
netpoll: Use 'bool' for netpoll_rx() return type.
2010-05-06 01:31:27 -07:00
NFS: Add helper functions for allocating filehandles and fattr structs
2010-05-14 15:09:21 -04:00
NFSv4: Clean up the NFSv4 setclientid operation
2010-05-14 15:09:30 -04:00
NFSv4: Clean up the NFSv4 setclientid operation
2010-05-14 15:09:30 -04:00
nilfs2: enlarge s_volume_name member in nilfs_super_block
2010-05-10 11:32:33 +09:00
cfg80211/mac80211: better channel handling
2010-05-07 14:55:50 -04:00
nodemask: fix the declaration of NODEMASK_ALLOC()
2010-03-12 15:52:38 -08:00
netpoll: add generic support for bridge and bonding devices
2010-05-06 00:47:21 -07:00
of: Fix comparison of "compatible" properties
2010-03-18 07:30:31 -06:00
of: change of_match_device to work with struct device
2010-05-22 00:10:41 -06:00
of/flattree: Make unflatten_device_tree() safe to call from any arch
2010-04-28 18:20:29 -06:00
of: Remove duplicate fields from of_platform_driver
2010-05-22 00:10:40 -06:00
padata: Add some code comments
2010-05-19 13:44:27 +10:00
memcg: fix race in file_mapped accounting
2010-04-07 08:38:05 -07:00
dma-mapping.h: add the dma_unmap state API
2010-03-12 15:52:42 -08:00
intel-iommu: use physfn to search drhd for VF
2010-04-09 17:00:00 +01:00
x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDs
2010-05-11 12:01:40 -07:00
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
2010-05-21 18:58:52 -07:00
pda_power: Add function callbacks for suspend and resume
2010-04-16 19:14:34 +04:00
Merge branch 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc
2010-04-05 09:39:11 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2010-03-03 07:34:18 -08:00
Revert "perf: Fix exit() vs PERF_FORMAT_GROUP"
2010-05-11 08:31:49 +02:00
phylib: Support phy module autoloading
2010-04-02 14:30:39 -07:00
pipe: set lower and upper limit on max pages in the pipe page array
2010-05-21 21:12:52 +02:00
platform: Make platform resource input parameters const
2010-05-17 21:37:40 +02:00
PM: Provide generic subsystem-level callbacks
2010-03-06 21:28:37 +01:00
PM QOS update
2010-05-10 23:08:19 +02:00
i2c: Fix bus-level power management callbacks
2010-05-10 23:09:30 +02:00
PM: pm_wakeup - switch to using bool
2010-05-10 23:08:15 +02:00
hugetlb: fix infinite loop in get_futex_key() when backed by huge pages
2010-04-24 11:31:25 -07:00
sysctl extern cleanup: poll
2010-03-12 15:53:11 -08:00
power_supply: Add support for writeable properties
2010-05-19 12:14:42 +04:00
ppp: Add ppp_dev_name() exported function
2010-04-03 14:56:02 -07:00
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
quota: unify ->set_dqblk
2010-05-21 19:30:44 +02:00
quota: Refactor dquot_transfer code so that OCFS2 can pass in its references
2010-05-21 19:30:45 +02:00
radix_tree_tag_get() is not as safe as the docs make out [ver #2 ]
2010-04-09 10:12:03 -07:00
ramfs: replace inode uid,gid,mode initialization with helper function
2010-05-21 18:31:26 -04:00
Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 09:28:04 -07:00
net: rcu fixes
2010-05-03 15:53:54 -07:00
rcu head introduce rcu head init on stack
2010-05-10 16:53:55 -07:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 08:27:54 -07:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 08:27:54 -07:00
sysctl extern cleanup: C_A_D
2010-03-12 15:52:44 -08:00
reiserfs: constify xattr_handler
2010-05-21 18:31:19 -04:00
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
reiserfs: constify xattr_handler
2010-05-21 18:31:19 -04:00
rfkill: Add support for KEY_RFKILL
2010-03-02 14:28:49 -05:00
ring-buffer: Make non-consuming read less expensive with lots of cpus.
2010-04-27 13:06:35 -04:00
mm: migration: take a reference to the anon_vma before migrating
2010-05-25 08:06:58 -07:00
rtc-v3020: make bitfield unsigned
2010-05-11 10:09:47 +02:00
rtc/hctosys: only claim the RTC provided the system time if it did
2010-03-12 15:52:28 -08:00
sysctl extern cleanup: rtmutex
2010-03-12 15:53:10 -08:00
ipv6: ip6mr: support multiple tables
2010-05-11 14:40:55 +02:00
locking: Make sparse work with inline spinlocks and rwlocks
2010-03-13 01:21:21 +01:00
cpuset,mm: fix no node to alloc memory when changing cpuset's mems
2010-05-25 08:06:57 -07:00
Merge branch 'master' into next
2010-05-06 10:56:07 +10:00
Merge branch 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
2010-05-21 11:08:05 -07:00
dmaengine: shdma: Remove sh_dmae_slave_chan_id enum
2010-03-23 17:19:30 +09:00
Input: add driver for hampshire serial touchscreens
2010-04-13 23:27:41 -07:00
sh: fixup the docbook paths for clock framework shuffling.
2010-05-13 18:42:25 +09:00
SH: constify multiple DMA related objects and references to them
2010-04-26 15:50:50 +09:00
sh: intc: IRQ auto-distribution support.
2010-04-15 13:13:52 +09:00
sysctl extern cleanup: signal
2010-03-12 15:52:44 -08:00
net: add a noref bit on skb dst
2010-05-17 17:18:50 -07:00
slab: Generify kernel pointer validation
2010-04-09 10:09:50 -07:00
mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slab_def.h>
2010-05-19 22:03:13 +03:00
mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slob_def.h>
2010-05-19 22:03:13 +03:00
mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slub_def.h>
2010-05-19 22:03:13 +03:00
smbfs: add bdi backing to mount session
2010-04-22 12:37:07 +02:00
smp: fix documentation in include/linux/smp.h
2010-03-06 11:26:32 -08:00
icmp: Account for ICMP out errors
2010-04-03 15:09:04 -07:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-06 23:53:30 -07:00
locking: Make sparse work with inline spinlocks and rwlocks
2010-03-13 01:21:21 +01:00
pipe: add support for shrinking and growing pipes
2010-05-21 21:12:40 +02:00
rcu: make SRCU usable in modules
2010-05-10 11:08:35 -07:00
stmmac: new descriptor field for the driver's platform
2010-04-14 04:49:51 -07:00
cpu_stop: add dummy implementation for UP
2010-05-08 17:12:33 +02:00
tmpfs: insert tmpfs cache pages to inactive list at first
2010-05-25 08:06:56 -07:00
Fix up prototype for sys_ipc breakage
2010-03-22 13:12:33 -07:00
sysctl: add proc_do_large_bitmap
2010-05-15 23:28:39 -07:00
sysdev: Add sysdev_create/remove_files
2010-03-07 17:04:47 -08:00
sysfs: add struct file* to bin_attr callbacks
2010-05-21 09:37:31 -07:00
Input: implement SysRq as a separate input handler
2010-04-13 23:26:02 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
KVM: VMX: enable VMXON check with SMX enabled (Intel TXT)
2010-05-19 11:36:34 +03:00
Input: add keypad driver for keys interfaced to TCA6416
2010-05-03 23:50:42 -07:00
sched: Intoduce get_cpu_iowait_time_us()
2010-05-09 19:35:27 +02:00
dma: Add timb-dma
2010-03-25 17:18:43 -07:00
time: Remove xtime_cache
2010-04-13 12:43:42 +02:00
timers: Introduce the concept of timer slack for legacy timers
2010-04-06 21:50:02 +02:00
ntp: Remove tickadj
2010-03-23 17:19:38 +01:00
tipc: Update commenting in TIPC API
2010-05-12 23:02:23 -07:00
tipc: Add support for "-s" configuration option
2010-05-12 23:02:23 -07:00
tracing: Fix tracepoint.h DECLARE_TRACE() to allow more than one header
2010-05-05 11:46:17 -04:00
tty: n_gsm line discipline
2010-05-21 09:34:29 -07:00
USB: tty: Add a function to insert a string of characters with the same flag
2010-03-02 14:55:11 -08:00
ldisc: new dcd_change() method for line disciplines
2010-03-12 15:52:43 -08:00
atomic_t: Remove volatile from atomic_t definition
2010-05-17 07:57:27 -07:00
USB: remove unused usb_buffer_alloc and usb_buffer_free macros
2010-05-20 13:21:50 -07:00
viafb: move some include files to include/linux
2010-05-11 16:07:59 -06:00
viafb: move some include files to include/linux
2010-05-11 16:07:59 -06:00
viafb: move some include files to include/linux
2010-05-11 16:07:59 -06:00
V4L/DVB: Add a new ERROR flag for DQBUF after recoverable streaming errors
2010-05-19 12:58:37 -03:00
virtio: add_buf_gfp
2010-05-19 22:15:46 +09:30
net/9p: Use the tag name in the config space for identifying mount point
2010-03-13 08:57:28 -06:00
Add virtio disk identification support
2010-05-19 22:15:40 +09:30
virtio: console: Use a control message to add ports
2010-05-19 22:15:49 +09:30
Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call"
2010-03-19 07:17:52 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
2010-05-20 21:26:12 -07:00
wireless.h: Use SIOCIWFIRST not SIOCSIWCOMMIT for range check
2010-03-23 16:50:26 -04:00
writeback: fix problem with !CONFIG_BLOCK compilation
2010-05-21 20:01:03 +02:00
fs: xattr_handler table should be const
2010-05-21 18:31:18 -04:00
Driver for Zipit Z2 battery chip
2010-04-06 20:35:58 +04:00
m68k: amiga - Zorro host bridge platform device conversion
2010-05-17 21:37:42 +02:00
3f6c82728f