Lee Schermerhorn
64d6519dda
swap: cull unevictable pages in fault path ...
In the fault paths that install new anonymous pages, check whether the
page is evictable or not using lru_cache_add_active_or_unevictable(). If
the page is evictable, just add it to the active lru list [via the pagevec
cache], else add it to the unevictable list.
This "proactive" culling in the fault path mimics the handling of mlocked
pages in Nick Piggin's series to keep mlocked pages off the lru lists.
Notes:
1) This patch is optional--e.g., if one is concerned about the
additional test in the fault path. We can defer the moving of
nonreclaimable pages until when vmscan [shrink_*_list()]
encounters them. Vmscan will only need to handle such pages
once, but if there are a lot of them it could impact system
performance.
2) The 'vma' argument to page_evictable() is require to notice that
we're faulting a page into an mlock()ed vma w/o having to scan the
page's rmap in the fault path. Culling mlock()ed anon pages is
currently the only reason for this patch.
3) We can't cull swap pages in read_swap_cache_async() because the
vma argument doesn't necessarily correspond to the swap cache
offset passed in by swapin_readahead(). This could [did!] result
in mlocking pages in non-VM_LOCKED vmas if [when] we tried to
cull in this path.
4) Move set_pte_at() to after where we add page to lru to keep it
hidden from other tasks that might walk the page table.
We already do it in this order in do_anonymous() page. And,
these are COW'd anon pages. Is this safe?
[riel@redhat.com: undo an overzealous code cleanup]
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:31 -07:00
V4L/DVB (9196): Add support for DSS delivery
2008-10-17 17:15:43 -03:00
NLM: Remove "proto" argument from lockd_up()
2008-10-04 17:12:27 -04:00
fbdev: add new TMIO framebuffer driver
2008-10-16 11:21:45 -07:00
IB/mlx4: Fix up fast register page list format
2008-09-15 14:25:23 -07:00
Fix comment in include/linux/mmc/host.h
2008-10-12 11:04:34 +02:00
Support 'discard sectors' operation in translation layer support core
2008-10-09 08:56:01 +02:00
netfilter: ctnetlink: remove bogus module dependency between ctnetlink and nf_nat
2008-10-14 11:58:31 -07:00
netfilter: xtables: move extension arguments into compound structure (5/6)
2008-10-08 11:35:19 +02:00
netfilter: rename ipt_recent to xt_recent
2008-10-08 11:35:00 +02:00
nfsd: permit unauthenticated stat of export root
2008-09-29 17:56:56 -04:00
md: remove space after function name in declaration and call.
2008-10-13 11:55:12 +11:00
regulator: Fix typo
2008-10-13 21:51:51 +01:00
rtc-m48t59: allow externally mapped ioaddr
2008-09-03 15:41:57 -07:00
orion_spi: handle 88F6183 erratum
2008-10-16 11:21:38 -07:00
ssb: Clean up extraction of MAC addresses from SPROM
2008-08-29 16:24:07 -04:00
Merge branch 'next'
2008-10-15 15:54:56 -04:00
pkt_action: add new action skbedit
2008-09-12 16:30:20 -07:00
usb: vstusb.c : new driver for spectrometers used by Vernier Software & Technology, Inc.
2008-10-17 14:41:01 -07:00
Configure out AIO support
2008-10-16 11:21:51 -07:00
ide: lba_capacity_is_ok() -> ata_id_is_lba_capacity_ok()
2008-10-10 22:39:31 +02:00
autofs4: add miscellaneous device for ioctls
2008-10-16 11:21:39 -07:00
autofs4: add miscellaneous device for ioctls
2008-10-16 11:21:39 -07:00
vmscan: split LRU lists into anon & file sets
2008-10-20 08:50:25 -07:00
Allow recursion in binfmt_script and binfmt_misc
2008-10-16 11:21:38 -07:00
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
2008-10-17 09:29:55 -07:00
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
2008-10-17 09:29:55 -07:00
blktrace: add support for driver data
2008-10-17 08:46:57 +02:00
memrlimit: cgroup mm owner callback changes to add task info
2008-10-16 11:21:28 -07:00
include/linux/clk.h: fix comment
2008-10-16 11:21:32 -07:00
clockevents: prevent clockevent event_handler ending up handler_noop
2008-09-05 11:11:51 +02:00
MN10300: Move asm-arm/cnt32_to_63.h to include/linux/
2008-09-24 16:38:17 -07:00
compat: generic compat get/settimeofday
2008-10-16 11:21:33 -07:00
rcu: remove redundant ACCESS_ONCE definition from rcupreempt.c
2008-08-18 09:45:22 +02:00
sched: add kernel doc for the completion, fix kernel-doc-nano-HOWTO.txt
2008-08-26 10:26:54 +02:00
Revert "vt: fix background color on line feed"
2008-10-14 12:12:02 -07:00
kernel/cpu.c: create a CPU_STARTING cpu_chain notifier
2008-09-08 19:25:24 +02:00
[CPUFREQ][1/6] cpufreq: Add cpu number parameter to __cpufreq_driver_getavg()
2008-10-09 13:52:43 -04:00
sched: arch_reinit_sched_domains() must destroy domains to force rebuild
2008-09-06 19:22:15 +02:00
crypto: rng - RNG interface and implementation
2008-08-29 15:50:04 +10:00
[PATCH] change d_add_ci argument ordering
2008-08-25 01:18:05 -04:00
This reverts "Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/dccp_exp"
2008-09-09 13:27:22 +02:00
dm: publish dm_vcalloc
2008-10-10 13:37:12 +01:00
Driver core: add bus_sort_breadthfirst() function
2008-10-16 09:24:52 -07:00
Add an instance parameter devpts interfaces
2008-10-13 09:51:43 -07:00
dlm: allow multiple lockspace creates
2008-08-28 11:49:15 -05:00
dlm: allow multiple lockspace creates
2008-08-28 11:49:15 -05:00
convert swiotlb to use dma_get_mask
2008-09-19 10:20:41 +02:00
VT-d: Changes to support KVM
2008-10-15 14:24:08 +02:00
Automatic MODULE_ALIAS() for DMI match tables.
2008-10-13 16:05:06 +01:00
MIPS: IP22/28: Switch over to RTC class driver
2008-10-15 12:46:51 +01:00
driver core: basic infrastructure for per-module dynamic debug messages
2008-10-16 09:24:47 -07:00
block: Add interface to abort queued requests
2008-10-09 08:56:13 +02:00
x86: ioperm user_regset
2008-10-12 12:05:55 +02:00
Reserve NFS fileid values for btrfs
2008-08-20 13:19:51 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
fbdefio: add set_page_dirty handler to deferred IO FB
2008-08-20 15:40:32 -07:00
floppy: support arbitrary first-sector numbers
2008-10-09 08:56:19 +02:00
vfs: vfs-level fiemap interface
2008-10-08 19:44:18 -04:00
firewire: Add more documentation to firewire-cdev.h
2008-10-15 22:21:11 +02:00
Merge branch 'for-2.6.28' of git://linux-nfs.org/~bfields/linux
2008-10-14 12:31:14 -07:00
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
block: allow disk to have extended device number
2008-10-09 08:56:08 +02:00
GFS2: Add UUID to GFS2 sb
2008-09-22 07:29:31 +01:00
gpio_free might sleep, generic part
2008-10-16 11:21:40 -07:00
HID: fix a lockup regression when using force feedback on a PID device
2008-10-14 23:51:02 +02:00
HID: hiddev.h: Fix example code.
2008-10-14 23:51:02 +02:00
hrtimer: prevent migration of per CPU hrtimers
2008-09-29 17:09:14 +02:00
V4L/DVB (9240): saa7127: Fix two typos
2008-10-17 17:25:11 -03:00
i2c: Add missing kerneldoc descriptions
2008-08-28 08:33:23 +02:00
i2o: Fix 32/64bit DMA locking
2008-10-16 11:21:38 -07:00
IPV6: Fix default gateway criteria wrt. HIGH/LOW preference radv option
2008-10-15 16:03:01 -07:00
ide: Implement disk shock protection support (v4)
2008-10-13 21:39:50 +02:00
mac80211: mesh portal functionality support
2008-09-24 16:18:02 -04:00
net: network device name ifalias support
2008-09-22 21:28:11 -07:00
net: Rationalise email address: Network Specific Parts
2008-10-13 19:01:08 -07:00
net: Rationalise email address: Network Specific Parts
2008-10-13 19:01:08 -07:00
net: Rationalise email address: Network Specific Parts
2008-10-13 19:01:08 -07:00
net: network device name ifalias support
2008-09-22 21:28:11 -07:00
phonet: Protect if_phonet.h against multiple inclusions.
2008-10-01 01:30:19 -07:00
gre: Add netlink interface
2008-10-09 11:59:55 -07:00
net: Rationalise email address: Network Specific Parts
2008-10-13 19:01:08 -07:00
ipv4: Implement IP_TRANSPARENT socket option
2008-10-01 07:30:02 -07:00
ipv4: add mc_count to in_device.
2008-10-07 15:34:37 -07:00
init.h: remove long-dead __setup_null_param() macro
2008-10-16 11:21:30 -07:00
VT-d: Changes to support KVM
2008-10-15 14:24:08 +02:00
softirq: Add support for triggering softirq work on softirqs.
2008-10-17 08:46:56 +02:00
introduce generic iommu_num_pages function
2008-10-16 11:21:33 -07:00
Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-10-16 15:17:40 -07:00
VT-d: Changes to support KVM
2008-10-15 14:24:08 +02:00
isdn: isdn_ppp: Use SKB list facilities instead of home-grown implementation.
2008-09-22 01:15:02 -07:00
V4L/DVB (8959): include <linux/videodev2.h> into linux/ivtv.h
2008-10-12 09:37:01 -02:00
Fix header export of videodev2.h, ivtv.h, ivtvfb.h
2008-08-16 16:46:57 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback
2008-10-16 20:00:24 -04:00
Remove Andrew Morton's old email accounts
2008-10-16 11:21:32 -07:00
vsprintf: use new vsprintf symbolic function pointer format
2008-10-16 11:21:31 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2008-10-16 11:52:08 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
2008-10-17 09:50:12 -07:00
add key_revoke() dummy for KEYS=n
2008-10-12 11:44:37 -07:00
klist: don't iterate over deleted entries
2008-10-09 08:56:04 +02:00
pm: rework disabling of user mode helpers during suspend/hibernation
2008-10-16 11:21:29 -07:00
KVM: ia64: Add intel iommu support for guests.
2008-10-15 14:25:39 +02:00
KVM: Separate irq ack notification out of arch/x86/kvm/irq.c
2008-10-15 14:25:35 +02:00
lcd: allow lcd device to handle mode change events
2008-09-23 22:01:33 +01:00
libata: reorder ata_device to remove 8 bytes of padding on 64 bits
2008-09-29 00:28:36 -04:00
debugobjects: fix lockdep warning
2008-09-01 09:47:16 +02:00
integrity: special fs magic
2008-10-13 09:47:43 +11:00
block: implement extended dev numbers
2008-10-09 08:56:06 +02:00
Input: move map_to_7segment.h to include/linux
2008-10-10 23:16:16 -04:00
Unevictable LRU Infrastructure
2008-10-20 08:50:26 -07:00
memstick: fix MSProHG 8-bit interface mode support
2008-09-13 14:41:52 -07:00
vmscan: move isolate_lru_page() to vmscan.c
2008-10-20 08:50:25 -07:00
mlock: mlocked pages are unevictable
2008-10-20 08:52:30 -07:00
Unevictable LRU Infrastructure
2008-10-20 08:50:26 -07:00
mm: define USE_SPLIT_PTLOCKS rather than repeating expression
2008-09-10 14:04:59 +02:00
vmstat: mlocked pages statistics
2008-10-20 08:52:31 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2008-10-16 11:52:08 -07:00
driver core: basic infrastructure for per-module dynamic debug messages
2008-10-16 09:24:47 -07:00
include/linux/mount.h: remove CVS keyword
2008-10-16 11:21:30 -07:00
net: Unbreak userspace usage of linux/mroute.h
2008-08-29 14:37:23 -07:00
net: Unbreak userspace usage of linux/mroute.h
2008-08-29 14:37:23 -07:00
mv643xx_eth: remove force_phy_addr field
2008-09-05 06:33:59 +02:00
Fix userspace export of <linux/net.h>
2008-08-26 10:37:20 -07:00
net: Rationalise email address: Network Specific Parts
2008-10-13 19:01:08 -07:00
netfilter: netns: remove nf_*_net() wrappers
2008-10-08 11:35:01 +02:00
ipsec: Put dumpers on the dump list
2008-10-01 07:03:24 -07:00
NFS: Fix the resolution problem with nfs_inode_attrs_need_update()
2008-10-14 19:23:17 -04:00
NFS: Clean up nfs_sb_active/nfs_sb_deactive
2008-10-06 20:08:26 -04:00
NFS: Add options for finer control of the lookup cache
2008-10-07 17:22:20 -04:00
NFS: Fix the resolution problem with nfs_inode_attrs_need_update()
2008-10-14 19:23:17 -04:00
cfg80211: Add new wireless regulatory infrastructure
2008-09-15 16:48:19 -04:00
kernel/cpu.c: create a CPU_STARTING cpu_chain notifier
2008-09-08 19:25:24 +02:00
of: Add new helper of_parse_phandles_with_args()
2008-10-13 10:55:47 +11:00
mlock: mlocked pages are unevictable
2008-10-20 08:52:30 -07:00
SHM_LOCKED pages are unevictable
2008-10-20 08:50:26 -07:00
Unevictable LRU Infrastructure
2008-10-20 08:50:26 -07:00
parport: remove CVS keywords
2008-10-16 11:21:49 -07:00
vfs: Use const for kernel parser table
2008-10-13 10:10:37 -07:00
PCI: add acpi_find_root_bridge_handle
2008-08-18 13:48:04 -07:00
PCI: fix compiler warnings in pci_get_subsys()
2008-09-16 15:52:08 -07:00
matroxfb: support G200eV chip
2008-10-16 11:21:45 -07:00
Merge commit ' 63cc8c7515':
2008-09-05 09:24:30 +02:00
percpu counter: clean up percpu_counter_sum_and_set()
2008-10-09 12:50:59 -04:00
xfrm: MIGRATE enhancements (draft-ebalard-mext-pfkey-enhanced-migrate)
2008-10-05 13:33:42 -07:00
generic: make PFN_PHYS explicitly return phys_addr_t
2008-09-14 17:24:26 +02:00
Phonet: implement GPRS virtual interface over PEP socket
2008-10-05 11:16:16 -07:00
phylib: add mdiobus_{read,write}
2008-10-08 16:38:41 -07:00
fix setpriority(PRIO_PGRP) thread iterator breakage
2008-08-20 15:40:32 -07:00
pid_ns: kill the now unused task_child_reaper()
2008-10-16 11:21:48 -07:00
net: Unbreak userspace usage of linux/mroute.h
2008-08-29 14:37:23 -07:00
pkt_sched: Add multiqueue scheduler support
2008-09-12 16:29:34 -07:00
platform: add new device registration helper
2008-10-16 09:24:51 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
pnp: make the resource type an unsigned long
2008-10-16 11:21:45 -07:00
powerpc: Remove remains of /proc/ppc_htab
2008-10-07 14:26:19 +11:00
profiling: dynamically enable readprofile at runtime
2008-10-16 11:21:31 -07:00
mm: show quicklist usage in /proc/meminfo
2008-09-02 19:21:38 -07:00
quota: remove CVS keywords
2008-10-16 11:21:46 -07:00
quota: remove CVS keywords
2008-10-16 11:21:46 -07:00
mm: tiny-shmem nommu fix
2008-10-02 15:53:13 -07:00
rcu: RCU-based detection of stalled CPUs for Classic RCU
2008-10-03 10:36:08 +02:00
rcu: add rcu_read_lock_sched() / rcu_read_unlock_sched()
2008-09-30 12:08:41 +02:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
res_counter: fix off-by-one bug in setting limit
2008-09-05 14:39:37 -07:00
rfkill: introduce RFKILL_STATE_MAX
2008-08-22 16:29:57 -04:00
mlock: mlocked pages are unevictable
2008-10-20 08:52:30 -07:00
include: replace __FUNCTION__ with __func__
2008-10-16 11:21:30 -07:00
Phonet: global definitions
2008-09-22 19:51:15 -07:00
Merge branch 'linus' into x86/xen
2008-10-12 12:37:32 +02:00
securityfs: do not depend on CONFIG_SECURITY
2008-08-28 10:47:42 +10:00
tty: Cris has a nice RS485 ioctl so we should steal it
2008-10-13 09:51:40 -07:00
serial: Make uart_port's ioport "unsigned long".
2008-10-13 09:51:39 -07:00
net: packet split receive api
2008-10-07 14:22:33 -07:00
smb.h: do not include linux/time.h in userspace
2008-09-23 08:09:13 -07:00
Export smc91x led definitions
2008-09-09 17:41:42 +02:00
softirq: Add support for triggering softirq work on softirqs.
2008-10-17 08:46:56 +02:00
Phonet: implement GPRS virtual interface over PEP socket
2008-10-05 11:16:16 -07:00
include/linux/stacktrace.h: declare struct task_struct
2008-10-03 18:22:18 -07:00
stop_machine: Remove deprecated stop_machine_run
2008-08-26 00:19:27 +10:00
[SCSI] lib: add generic helper to print sizes rounded to the correct SI range
2008-10-03 11:46:14 -05:00
swap: cull unevictable pages in fault path
2008-10-20 08:52:31 -07:00
introduce generic header file for the software IO/TLB
2008-10-16 11:21:28 -07:00
sysctl: simplify ->strategy
2008-10-16 11:21:47 -07:00
kobject: Cleanup kobject_rename and !CONFIG_SYSFS
2008-10-16 09:24:52 -07:00
Remove Andrew Morton's old email accounts
2008-10-16 11:21:32 -07:00
tcp: kill pointless urg_mode
2008-10-07 14:43:06 -07:00
telephony: remove CVS keywords
2008-10-16 11:21:45 -07:00
tty: Add termiox
2008-10-13 09:51:40 -07:00
[CPUFREQ][5/6] cpufreq: Changes to get_cpu_idle_time_us(), used by ondemand governor
2008-10-09 13:52:44 -04:00
compat: generic compat get/settimeofday
2008-10-16 11:21:33 -07:00
tracehook: comment pasto fixes
2008-09-05 14:39:38 -07:00
tty: some ICANON magic is in the wrong places
2008-10-13 09:51:44 -07:00
Add an instance parameter devpts interfaces
2008-10-13 09:51:43 -07:00
generic: redefine resource_size_t as phys_addr_t
2008-09-14 17:24:27 +02:00
[ARM] 5184/1: Split ucb1400_ts into core and touchscreen
2008-08-20 23:22:22 +01:00
USB: anchor API changes needed for btusb
2008-10-17 14:41:02 -07:00
V4L/DVB (8649): v4l2: add AAC bitrate control
2008-10-12 09:36:49 -02:00
mm: VM_flags comment fixes
2008-08-16 16:45:56 -07:00
vmstat: mlocked pages statistics
2008-10-20 08:52:31 -07:00
tty: Remove more special casing and out of place code
2008-10-13 09:51:42 -07:00
wait: kill is_sync_wait()
2008-10-16 11:21:31 -07:00
[ARM] 5248/1: wm97xx generic battery driver
2008-10-02 22:48:34 +01:00
vfs: Add no_nrwrite_index_update writeback control flag
2008-10-16 10:09:17 -04:00
xfrm: MIGRATE enhancements (draft-ebalard-mext-pfkey-enhanced-migrate)
2008-10-05 13:33:42 -07:00
