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linux/drivers/staging
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Konstantin Khlebnikov 314e51b985 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[akpm@linux-foundation.org: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Carsten Otte <cotte@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morris <james.l.morris@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Venkatesh Pallipadi <venki@google.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-09 16:22:19 +09:00
..
android mm: kill vma flag VM_CAN_NONLINEAR 2012-10-09 16:22:17 +09:00
asus_oled Staging: asus_oled: Add suspend/resume callbacks 2012-09-04 13:12:13 -07:00
bcm Staging: bcm: Remove typedef for _stCPacketClassificationRuleSI and call directly. 2012-09-26 09:31:52 -07:00
ccg Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2012-10-02 09:54:49 -07:00
ced1401 staging:ced1401: remove read write callbacks from fops 2012-09-21 08:56:41 -07:00
comedi staging: comedi: jr3_pci: fix iomem dereference 2012-09-27 10:06:36 -07:00
cptm1217 staging: cptm1217: use module_i2c_driver macro 2012-09-04 14:23:33 -07:00
crystalhd drivers/staging/crystalhd/crystalhd_lnx.c: adjust inconsistent IS_ERR and PTR_ERR 2012-09-04 14:22:48 -07:00
csr staging: Fix spelling of "asynchronous" in comments. 2012-09-21 08:56:41 -07:00
cxt1e1 staging: cxt1e1: solve coding style problem 2012-09-04 14:27:42 -07:00
dgrp userns: Fix build of drivers/staging/dgrp 2012-10-03 09:52:08 -07:00
echo Staging: echo: One variable per line 2012-07-06 16:08:57 -07:00
et131x Staging tree update for 3.7-rc1 2012-10-01 12:11:39 -07:00
frontier staging/frontier: fix checkpatch warnings 2012-07-19 16:11:26 -07:00
ft1000 staging: ft1000: replace c99 comments with c88 2012-09-17 05:31:32 -07:00
gdm72xx Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
iio staging:iio:dummy: Fix potential NULL pointer dereference 2012-09-22 10:55:08 +01:00
imx-drm staging: drm/imx: Add TODO 2012-09-21 09:17:07 -07:00
ipack TTY merge for 3.7-rc1 2012-10-01 12:26:52 -07:00
keucr USB merge for 3.7-rc1 2012-10-01 13:23:01 -07:00
line6 staging: line6: variax.c: Eliminated remaining strict_stroul()s 2012-08-14 16:46:34 -07:00
media [media] v4l2: make vidioc_s_crop const 2012-09-26 11:02:25 -03:00
net
nvec Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2012-10-02 09:54:49 -07:00
octeon staging: octeon_ethernet: Convert to use device tree. 2012-07-23 13:54:53 +01:00
olpc_dcon staging/olpc_dcon: fix checkpatch warnings 2012-08-17 09:45:37 -07:00
omap-thermal staging: omap-thermal: bandgap: fix setting of alert thresholds 2012-09-21 08:56:40 -07:00
omapdrm mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
ozwpan staging: ozwpan: compare pointer to NULL rather than 0 2012-09-19 09:28:14 +01:00
panel staging: Fix misspellings of "whether". 2012-09-21 08:56:40 -07:00
phison staging/phison: use module_pci_driver macro 2012-07-11 17:26:02 -07:00
quickstart
ramster staging: ramster: fix build warnings 2012-09-07 22:05:03 -07:00
rtl8187se staging: rtl8187se: using random_ether_addr() to generate random MAC 2012-09-04 14:10:08 -07:00
rtl8192e Staging tree update for 3.7-rc1 2012-10-01 12:11:39 -07:00
rtl8192u staging: Fix misspellings of "whether". 2012-09-21 08:56:40 -07:00
rtl8712 staging: r8712u: Do not queue cloned skb 2012-09-26 13:05:50 -07:00
rts_pstor staging/rts_pstor: Delete some lines (dev_info() and dev_err()) in rtsx.c 2012-09-21 08:56:41 -07:00
rts5139 staging: rts5139: use kzalloc() to close an info leak 2012-09-26 09:19:50 -07:00
sbe-2t3e3 staging: sbe-2t3e3: fix error handling in t3e3_init_channel() 2012-09-25 15:48:25 -07:00
sep Staging: sep: Correct misspelled "remap_page_range" -> "remap_pfn_range" 2012-09-04 14:27:41 -07:00
serqt_usb2 USB merge for 3.7-rc1 2012-10-01 13:23:01 -07:00
silicom staging: fix silicom dependencies and build errors 2012-09-21 08:56:40 -07:00
slicoss staging: slicoss: fix a null deref when pci_alloc_consistent fail 2012-09-05 11:59:51 -07:00
sm7xxfb staging: sm7xxfb: remove smtc_VRAMBaseAddress 2012-09-17 14:57:53 -07:00
speakup TTY merge for 3.7-rc1 2012-10-01 12:26:52 -07:00
ste_rmi4 staging: ste_rmi4: remove gpio.h include 2012-09-14 09:21:56 -05:00
telephony staging: Fix spelling of "asynchronous" in comments. 2012-09-21 08:56:41 -07:00
tidspbridge mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
usbip USB merge for 3.7-rc1 2012-10-01 13:23:01 -07:00
vme staging/vme: Use pr_ printks in vme_pio2_core.c 2012-09-04 13:22:48 -07:00
vt6655 staging: vt6655: vt6655_init_info function must be void type 2012-09-07 22:07:37 -07:00
vt6656 Merge 3.6-rc6 into staging-next 2012-09-16 17:17:25 -07:00
winbond Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
wlags49_h2 staging: "wlags49_h2" Fix typos. 2012-09-10 20:24:01 -07:00
wlags49_h25 staging: "wlags49_h25" Fix typos. 2012-09-17 14:50:33 -07:00
wlan-ng staging "wlan-ng" Fix typos. 2012-09-26 09:19:50 -07:00
xgifb staging: xgifb: delete bogus video RAM configuration 2012-09-13 20:41:57 -07:00
zcache Merge 3.6-rc6 into staging-next 2012-09-16 17:17:25 -07:00
zram staging: zsmalloc: add mapping modes 2012-07-09 11:35:00 -07:00
zsmalloc zsmalloc: collapse internal .h into .c 2012-08-13 19:34:24 -07:00
Kconfig TTY merge for 3.7-rc1 2012-10-01 12:26:52 -07:00
Makefile TTY merge for 3.7-rc1 2012-10-01 12:26:52 -07:00
staging.c