redonkable/alistair23-linux
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Douglas Gilbert 1c8e71d720 [SCSI] sg: do not set VM_IO flag on mmap-ed pages 
Further to the problem discussed in this post:
http://marc.theaimsgroup.com/?l=linux-scsi&m=112540053711489&w=2

It seems that the sg driver does not need to set the VM_IO flag
on pages that it memory maps to the user space since they are
not from the IO space. Ahmed Teirelbar <ahmed.teirelbar@adic.com>
wants the facility and has tested this patch as I have without
adverse effects.

The oops protection is still important. Some users really did
try and use dio transfers from the sg driver to memory mapped
IO space (on a video capture card if my memory serves) during the
lk 2.4 series. I'm not sure how successful it was but that will
now be politely refused in lk 2.6.13+ .

Changelog:
   - set the page flags for sg's reserved buffer mmap-ed
     to the user space to VM_RESERVED (rather than
     VM_RESERVED | VM_IO )

Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-09 16:37:05 -05:00
..
acorn [PATCH] ARM: switch fd1772.c from sleep_on to wait_event 2005-08-07 14:23:42 +01:00
acpi [PATCH] acpi_shutdown: Only prepare for power off on power_off 2005-08-27 10:11:40 -07:00
atm [ATM]: Fix dereference of uninitialized pointer in zatm 2005-09-02 12:18:03 -07:00
base [SCSI] Re-do "final klist fixes" 2005-09-07 18:44:33 -07:00
block Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 2005-09-07 17:31:27 -07:00
bluetooth [Bluetooth]: Move packet type into the SKB control buffer 2005-08-29 15:55:13 -07:00
cdrom Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 2005-09-07 17:31:27 -07:00
char Merge branch 'drm-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6 2005-09-07 17:29:07 -07:00
cpufreq Here are two possible cleanups in cpufreq.c: 2005-07-28 09:43:56 -07:00
crypto [CRYPTO] Update IV correctly for Padlock CBC encryption 2005-07-06 13:54:09 -07:00
dio [PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks 2005-06-20 15:15:32 -07:00
eisa [PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks 2005-06-20 15:15:32 -07:00
fc4 [SCSI] fc4 warning fix 2005-07-30 09:47:53 -05:00
firmware [PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support 2005-09-07 16:57:27 -07:00
hwmon [PATCH] hwmon: (3/3) pc87360 driver update 2005-09-05 09:26:55 -07:00
i2c [PATCH] drivers: convert kcalloc to kzalloc 2005-09-07 16:57:46 -07:00
ide Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6 2005-09-07 17:31:27 -07:00
ieee1394 [PATCH] provide MODALIAS= enviroment variable to autoload ieee1394 modules via udev 2005-09-07 16:57:41 -07:00
infiniband [PATCH] drivers: convert kcalloc to kzalloc 2005-09-07 16:57:46 -07:00
input [PATCH] Input: Add a new switch event type 2005-09-07 16:57:54 -07:00
isdn [PATCH] -Wundef fixes (hisax) 2005-09-07 17:17:33 -07:00
macintosh [PATCH] swsusp: switch pm_message_t to struct 2005-09-05 00:06:16 -07:00
mca [PATCH] unexport mca_find_device_by_slot 2005-06-25 16:24:56 -07:00
md [PATCH] kill bio->bi_set 2005-09-07 16:57:20 -07:00
media [PATCH] DVB: lgdt330x check callback fix 2005-09-07 16:58:02 -07:00
message Merge by hand (conflicts in sd.c) 2005-09-06 17:52:54 -05:00
mfd [MFD] Add SA11x0 MCP platform device support 2005-08-18 10:10:46 +01:00
misc [SERIAL] Update ibmasm driver for death of register_serial&co 2005-09-07 21:37:00 +01:00
mmc [PATCH] mmc: conditional scr sysfs entry 2005-09-07 16:57:52 -07:00
mtd [PATCH] detect soft lockups 2005-09-07 16:57:17 -07:00
net Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2005-09-07 17:28:25 -07:00
nubus Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oprofile [PATCH] clean up inline static vs static inline 2005-07-27 16:26:20 -07:00
parisc [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add 2005-06-27 21:52:39 -07:00
parport [PATCH] parport: add NetMOS 9805 support 2005-09-07 16:57:28 -07:00
pci [PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinity 2005-09-07 16:57:15 -07:00
pcmcia [PATCH] yenta: make ToPIC95 bridges work with 16bit cards 2005-09-07 16:57:21 -07:00
pnp [PATCH] PNP: make pnp_dbg conditional directly on CONFIG_PNP_DEBUG 2005-09-07 16:57:25 -07:00
s390 [PATCH] s390: claw driver fixes 2005-09-06 22:15:20 -04:00
sbus [SPARC64]: Use drivers/Kconfig 2005-08-30 21:46:19 -07:00
scsi [SCSI] sg: do not set VM_IO flag on mmap-ed pages 2005-09-09 16:37:05 -05:00
serial Merge master.kernel.org:/home/rmk/linux-2.6-serial 2005-09-07 17:02:24 -07:00
sh [PATCH] Driver Core: drivers/s390/net/qeth_sys.c - drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks 2005-06-20 15:15:35 -07:00
sn [PATCH] ioc4: PCI bus speed detection 2005-06-21 18:46:32 -07:00
tc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
telephony [PATCH] pcmcia: remove references to pcmcia/version.h 2005-07-07 18:24:07 -07:00
usb [PATCH] USB: convert kcalloc to kzalloc 2005-09-07 16:57:46 -07:00
video [PATCH] w100fb: Rewrite for platform independence 2005-09-07 16:57:53 -07:00
w1 [NETLINK]: Add "groups" argument to netlink_kernel_create 2005-08-29 16:01:11 -07:00
zorro [PATCH] Driver Core: drivers/usb/input/aiptek.c - drivers/zorro/zorro-sysfs.c: update device attribute callbacks 2005-06-20 15:15:35 -07:00
Kconfig [MFD] Add multimedia communication port core support 2005-08-18 10:06:59 +01:00
Makefile [MFD] Add multimedia communication port core support 2005-08-18 10:06:59 +01:00