linux-stable/Documentation
Paul Mundt dd8632a12e NOMMU: Make mmap allocation page trimming behaviour configurable.
NOMMU mmap allocates a piece of memory for an mmap that's rounded up in size to
the nearest power-of-2 number of pages.  Currently it then discards the excess
pages back to the page allocator, making that memory available for use by other
things.  This can, however, cause greater amount of fragmentation.

To counter this, a sysctl is added in order to fine-tune the trimming
behaviour.  The default behaviour remains to trim pages aggressively, while
this can either be disabled completely or set to a higher page-granular
watermark in order to have finer-grained control.

vm region vm_top bits taken from an earlier patch by David Howells.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Mike Frysinger <vapier.adi@gmail.com>
2009-01-08 12:04:47 +00:00
..
ABI mm: show node to memory section relationship with symlinks in sysfs 2009-01-06 15:59:00 -08:00
accounting .gitignore updates 2008-10-30 11:38:45 -07:00
acpi ACPI: update debug parameter documentation 2008-11-07 21:45:29 -05:00
aoe aoe: user can ask driver to forget previously detected devices 2008-02-08 09:22:31 -08:00
arm Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-29 18:08:11 +00:00
auxdisplay .gitignore updates 2008-10-30 11:38:45 -07:00
blackfin Blackfin arch: Add document about bfin-gpio 2009-01-07 23:14:38 +08:00
block Documentation: remove reference to ll_rw_blk.c and moved drivers/block/elevator.c 2008-12-29 08:28:43 +01:00
blockdev Create/use more directory structure in the Documentation/ tree. 2008-11-14 17:28:53 +00:00
cdrom doc/cdrom: Trvial documentation error, file not present 2008-10-10 08:22:44 +02:00
cgroups freezer_cg: disable writing freezer.state of root cgroup 2008-11-12 17:17:16 -08:00
connector .gitignore updates 2008-10-30 11:38:45 -07:00
console Typo: fro -> from 2007-07-19 10:04:47 -07:00
controllers sched: add hierarchical accounting to cpu accounting controller 2008-11-11 12:13:28 +01:00
cpu-freq doc: Update sh cpufreq documentation. 2008-12-22 18:44:47 +09:00
cpuidle cpuidle: Add Documentation 2008-02-14 00:16:13 -05:00
cris fix random typos 2008-10-16 11:21:30 -07:00
crypto [CRYPTO] doc: Update api-intro.txt 2008-01-11 08:16:14 +11:00
development-process Add the development process document 2008-10-16 11:51:30 -06:00
device-mapper dm crypt: add documentation 2008-04-25 13:27:03 +01:00
DocBook wimax: Makefile, Kconfig and docbook linkage for the stack 2009-01-07 10:00:17 -08:00
driver-model Driver core: Update some prototypes in platform.txt 2008-02-02 15:14:49 -08:00
dvb V4L/DVB (9812): [PATCH] short help for Technisat cards to select the right configuration 2008-12-30 09:38:35 -02:00
early-userspace Documentation: Remove last references to BitKeeper. 2008-04-21 22:19:05 +00:00
fault-injection fault-injection: fix example scripts in documentation 2007-07-16 09:05:45 -07:00
fb [ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices 2008-12-29 18:00:04 +08:00
filesystems Merge branch 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc 2009-01-07 12:01:06 -08:00
firmware_class firmware_sample_driver.c: fix coding style 2008-04-21 22:23:30 +00:00
frv move frv docs one level up 2008-02-03 15:54:28 +02:00
hwmon Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2009-01-07 11:59:51 -08:00
i2c i2c: The i2c mailing list is moving 2008-10-30 15:55:47 +01:00
i2o documentation: convert the Documentation directory to UTF-8 2007-05-09 08:58:19 +02:00
ia64 .gitignore updates 2008-10-30 11:38:45 -07:00
ide ide: update warm-plug HOWTO 2009-01-06 17:21:00 +01:00
infiniband IB/umad: Add P_Key index support 2007-10-09 19:59:15 -07:00
input Merge commit 'v2.6.28-rc9' into next 2008-12-20 04:54:54 -05:00
ioctl documentation: update header file paths 2009-01-06 15:59:28 -08:00
isdn Rationalise Randy's address a bit 2008-10-30 11:38:47 -07:00
ja_JP HOWTO: Sync patch for jp_JP/HOWTO 2008-10-29 15:03:50 -07:00
kbuild kbuild: fix typos (s/bin_shipped/bin.o_shipped/) in Documentation 2009-01-07 21:44:23 +01:00
kdump powerpc: Support for relocatable kdump kernel 2008-10-22 15:01:22 +11:00
ko_KR HOWTO: update misspelling and word incorrected 2007-12-17 10:33:19 -08:00
laptops trivial: fix an -> a typos in documentation and comments 2009-01-06 11:28:07 +01:00
lguest lguest: move the initial guest page table creation code to the host 2008-12-30 09:26:11 +10:30
m68k [SCSI] 53c7xx: fix removal fallout 2008-01-11 18:22:30 -06:00
make Documentation/make/headers_install.txt 2007-10-17 08:43:05 -07:00
mips documentation: update header file paths 2009-01-06 15:59:28 -08:00
mn10300 mn10300: add the MN10300/AM33 architecture to the kernel 2008-02-08 09:22:30 -08:00
mtd [MTD] [NAND] nand_ecc.c: rewrite for improved performance 2008-08-16 10:55:33 +01:00
namespaces The namespaces compatibility list doc 2007-11-29 09:24:53 -08:00
netlabel Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
networking trivial: fix an -> a typos in documentation and comments 2009-01-06 11:28:07 +01:00
parisc
PCI PCI: Add pci_clear_master() as opposite of pci_set_master() 2009-01-07 11:13:23 -08:00
pcmcia .gitignore updates 2008-10-30 11:38:45 -07:00
power pm: document use of RTC in pm_trace 2008-10-16 11:21:29 -07:00
powerpc documentation: update header file paths 2009-01-06 15:59:28 -08:00
prctl generic, x86: add tests for prctl PR_GET_TSC and PR_SET_TSC 2008-04-19 19:19:55 +02:00
RCU Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-12-30 16:10:19 -08:00
s390 documentation: update s390 header file paths 2009-01-06 15:59:28 -08:00
scheduler Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-12-28 12:27:58 -08:00
scsi trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx 2009-01-06 11:28:09 +01:00
serial Create/use more directory structure in the Documentation/ tree. 2008-11-14 17:28:53 +00:00
sh sh: Kill off remaining CONFIG_SH_KGDB bits. 2008-12-22 18:44:05 +09:00
sound Merge branch 'topic/oxygen' into to-push 2008-12-25 11:40:30 +01:00
sparc sparc: Remove Documentation/sparc/sbus_drivers.txt 2008-08-29 02:15:25 -07:00
spi hwmon: (lm70) Code streamlining and cleanup 2009-01-07 16:37:34 +01:00
sysctl NOMMU: Make mmap allocation page trimming behaviour configurable. 2009-01-08 12:04:47 +00:00
telephony remove mention of CONFIG_KMOD from documentation 2008-07-22 19:24:29 +10:00
thermal thermal: update the documentation 2008-04-29 02:49:47 -04:00
timers hpet: /dev/hpet - fixes and cleanup 2008-07-31 18:45:41 +02:00
tracers tracing, doc: update mmiotrace documentation 2008-11-23 20:33:24 +01:00
uml
usb USB: add asynchronous autosuspend/autoresume support 2009-01-07 09:59:53 -08:00
video4linux V4L/DVB (10157): Add USB ID for the Sil4701 radio from DealExtreme 2009-01-02 17:13:56 -02:00
vm mm: remove try_to_munlock from vmscan 2009-01-06 15:59:03 -08:00
w1 hdq: documentation for OMAP HDQ 2008-11-12 17:17:18 -08:00
watchdog .gitignore updates 2008-10-30 11:38:45 -07:00
wimax i2400m: documentation and instructions for usage 2009-01-07 10:00:18 -08:00
x86 documentation: update header file paths 2009-01-06 15:59:28 -08:00
zh_CN Chinese: add translation of Codingstyle 2008-01-24 20:40:04 -08:00
00-INDEX Merge branch 'doc-subdirs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs 2008-11-15 11:51:03 -08:00
applying-patches.txt
atomic_ops.txt documentation: atomic_add_unless() doesn't imply mb() on failure 2008-02-23 17:52:36 -08:00
basic_profiling.txt
binfmt_misc.txt documentation: convert the Documentation directory to UTF-8 2007-05-09 08:58:19 +02:00
braille-console.txt Basic braille screen reader support 2008-04-30 08:29:52 -07:00
bt8xxgpio.txt gpio: add bt8xxgpio driver 2008-07-25 10:53:30 -07:00
BUG-HUNTING Documentation: add hint about call traces & module symbols to BUG-HUNTING 2008-02-06 10:41:09 -08:00
c2port.txt Add c2 port support 2008-11-12 17:17:18 -08:00
cachetlb.txt remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
Changes [x86 setup] Document grub < 0.93 as broken 2007-08-02 13:50:43 -04:00
CodingStyle documentation: update CodingStyle tips for Emacs users 2008-07-25 10:53:29 -07:00
cpu-hotplug.txt x86: use possible_cpus=NUM to extend the possible cpus allowed 2008-12-18 12:08:05 +01:00
cpu-load.txt [PATCH] Documentation: CPU load calculation description 2007-03-01 14:53:39 -08:00
cpusets.txt container freezer: document the cgroup freezer subsystem. 2008-10-20 08:52:34 -07:00
cputopology.txt sysfs: add documentation to cputopology.txt for system cpumasks 2008-12-19 17:47:12 +10:30
credentials.txt CRED: Documentation 2008-11-14 10:39:26 +11:00
dcdbas.txt
debugging-modules.txt Documentation: Clarify when module debugging actually works. 2008-02-03 15:27:38 +02:00
debugging-via-ohci1394.txt firewire: fw-ohci: add option for remote debugging 2008-04-18 17:55:33 +02:00
dell_rbu.txt trivial: fix an -> a typos in documentation and comments 2009-01-06 11:28:07 +01:00
devices.txt USB: add USB test and measurement class driver 2008-10-17 14:40:51 -07:00
DMA-API.txt DMA-API.txt: fix description of pci_map_sg/dma_map_sg scatterlists handling 2008-12-01 19:55:24 -08:00
DMA-attributes.txt powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code 2008-07-22 10:39:36 +10:00
DMA-ISA-LPC.txt
DMA-mapping.txt documentation: update header file paths 2009-01-06 15:59:28 -08:00
dontdiff dontdiff: more updates to be closer to gitignore 2008-10-16 11:21:31 -07:00
edac.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
eisa.txt
email-clients.txt Documentation/email-clients.txt: add some info about gmail 2008-11-06 15:41:19 -08:00
exception.txt
feature-removal-schedule.txt hwmon: Deprecate the fscher and fscpos drivers 2009-01-07 16:37:33 +01:00
ftrace.txt ftrace: improve documentation 2008-11-28 13:15:14 +01:00
gpio.txt gpiolib: request/free hooks 2008-10-16 11:21:40 -07:00
highuid.txt [SPARC]: Remove SunOS and Solaris binary support. 2008-04-21 15:10:15 -07:00
HOWTO Remove Andrew Morton's http://www.zip.com.au/~akpm/ 2008-10-16 11:21:32 -07:00
hw_random.txt hw_random doc updates 2008-03-24 19:22:19 -07:00
ics932s401 ics932s401: new clock generator chip driver 2008-11-12 17:17:18 -08:00
initrd.txt use the newc archive format as requested by initramfs 2008-02-03 14:54:41 +02:00
Intel-IOMMU.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
IO-mapping.txt
io-mapping.txt io mapping: improve documentation 2008-11-03 18:21:44 +01:00
io_ordering.txt
iostats.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
IPMI.txt IPMI: new NMI handling 2007-10-18 14:37:32 -07:00
IRQ-affinity.txt genirq: Expose default irq affinity mask (take 3) 2008-06-05 15:18:30 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt Documentation/java.txt: typo and grammar fixes 2007-10-20 02:37:21 +02:00
kernel-doc-nano-HOWTO.txt documentation: how to use DOC: section blocks 2009-01-06 15:59:28 -08:00
kernel-docs.txt doc: update to URL and status of kernel-docs.txt entry 2008-06-06 11:29:10 -07:00
kernel-parameters.txt Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-01-07 15:41:01 -08:00
keys-request-key.txt keys: allow the callout data to be passed as a blob rather than a string 2008-04-29 08:06:16 -07:00
keys.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
kobject.txt kobject: Make Documentation/kobject.txt a little more coherent. 2009-01-06 10:44:32 -08:00
kprobes.txt kprobes: support probing module __exit function 2009-01-06 15:59:21 -08:00
kref.txt docs: convert kref semaphore to mutex 2008-02-06 10:41:09 -08:00
ldm.txt LDM: Fix for Windows Vista dynamic disks 2007-05-21 09:58:40 -07:00
leds-class.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
local_ops.txt documentation: local_ops fix on_each_cpu 2008-12-01 13:51:26 +01:00
lockdep-design.txt
lockstat.txt lockstat: contend with points 2008-10-20 15:43:10 +02:00
logo.gif
logo.txt
magic-number.txt documentation: update header file paths 2009-01-06 15:59:28 -08:00
Makefile docsrc: build Documentation/ sources 2008-08-12 16:07:30 -07:00
ManagementStyle docs: fix ManagementStyle book name 2008-10-30 11:38:46 -07:00
markers.txt markers: comment marker_synchronize_unregister() on data dependency 2008-11-28 16:47:41 +01:00
mca.txt The ps2esdi driver was marked as BROKEN more than two years ago due to being 2008-03-17 09:03:05 +01:00
md.txt md: Tidy up rdev_size_store a bit: 2008-07-21 14:22:18 +10:00
memory-barriers.txt read_barrier_depends arch fixlets 2008-05-14 10:05:18 -07:00
memory-hotplug.txt mm: show node to memory section relationship with symlinks in sysfs 2009-01-06 15:59:00 -08:00
memory.txt
mono.txt
mutex-design.txt Documentation: Add nested versions of mutex locks to docs 2007-10-20 00:15:26 +02:00
nmi_watchdog.txt x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2 2008-10-30 19:07:04 +01:00
nommu-mmap.txt NOMMU: Make mmap allocation page trimming behaviour configurable. 2009-01-08 12:04:47 +00:00
numastat.txt
oops-tracing.txt Taint kernel after WARN_ON(condition) 2008-04-29 08:05:59 -07:00
parport-lowlevel.txt plip: fix parport_register_device name parameter 2007-11-26 19:39:01 -08:00
parport.txt
pi-futex.txt
pnp.txt Documentation: Replace obsolete "driverfs" with "sysfs". 2008-01-24 20:40:04 -08:00
preempt-locking.txt
printk-formats.txt DOC: add printk-formats.txt 2008-11-12 17:17:17 -08:00
prio_tree.txt
rbtree.txt [PATCH] Documentation/rbtree.txt 2007-02-11 10:51:35 -08:00
rfkill.txt rfkill: add master_switch_mode and EPO lock to rfkill and rfkill-input 2008-10-31 19:00:09 -04:00
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt rtc: cleanup example code 2008-02-06 10:41:14 -08:00
SAK.txt Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
SecurityBugs
SELinux.txt selinux: add support for installing a dummy policy (v2) 2008-08-27 08:54:08 +10:00
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt Tweak Documentation/SM501.txt 2007-10-17 08:43:06 -07:00
Smack.txt Smack: Simplified Mandatory Access Control Kernel 2008-02-05 09:44:20 -08:00
sparse.txt kbuild: sparse needs CF not CHECKFLAGS 2008-07-25 22:12:39 +02:00
spinlocks.txt Add additional examples in Documentation/spinlocks.txt 2008-04-11 13:21:14 -06:00
stable_api_nonsense.txt stable_api_nonsense.txt: Disambiguate the use of "this" by using "that" to refer to the syscall interface 2007-07-30 14:25:12 -07:00
stable_kernel_rules.txt Update stable tree documentation 2008-10-29 15:03:49 -07:00
SubmitChecklist documentation: explain memory barriers 2008-10-16 11:21:32 -07:00
SubmittingDrivers Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
SubmittingPatches Merge branch 'docs' of git://git.lwn.net/linux-2.6 2008-10-16 12:18:16 -07:00
svga.txt
sysfs-rules.txt sysfs-rules.txt: reword API stability statement 2008-07-21 21:54:59 -07:00
sysrq.txt Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:19:56 -07:00
tracepoints.txt tracepoints: Documentation TPPROTO misspelt in Documentation/tracepoints.txt 2008-11-29 15:13:42 +01:00
unaligned-memory-access.txt introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol 2008-07-25 10:53:27 -07:00
unicode.txt
unshare.txt
VGA-softcursor.txt
video-output.txt output: Add output class document 2006-12-20 01:46:58 -05:00
volatile-considered-harmful.txt Documentation cleanup: trivial misspelling, punctuation, and grammar corrections. 2008-07-26 12:00:06 -07:00
voyager.txt
zorro.txt