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027d50f92e
linux/drivers
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Milan Broz 027d50f92e dm io:ctl use constant struct size 
Make size of dm_ioctl struct always 312 bytes on all supported
architectures.

This change retains compatibility with already-compiled code because
it uses an embedded offset to locate the payload that follows the
structure.

On 64-bit architectures there is no change at all; on 32-bit
we are increasing the size of dm-ioctl from 308 to 312 bytes.

Currently with 32-bit userspace / 64-bit kernel on x86_64
some ioctls (including rename, message) are incorrectly rejected
by the comparison against 'param + 1'.  This breaks userspace
lvrename and multipath 'fail_if_no_path' changes, for example.

(BTW Device-mapper uses its own versioning and ignores the ioctl
size bits.  Only the generic ioctl compat code on mixed arches
checks them, and that will continue to accept both sizes for now,
but we intend to list 308 as deprecated and eventually remove it.)

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Guido Guenther <agx@sigxcpu.org>
Cc: Kevin Corry <kevcorry@us.ibm.com>
Cc: stable@kernel.org
2007-10-20 02:00:58 +01:00
..
acorn/char unicode diacritics support 2007-10-17 08:42:52 -07:00
acpi Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-19 15:06:00 -07:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ata Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2007-10-18 15:08:35 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
auxdisplay
base sparse pointer use of zero as null 2007-10-18 14:37:31 -07:00
block Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
bluetooth
cdrom Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
char Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
clocksource
connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
cpuidle cpuidle: consolidate 2.6.22 cpuidle branch into one patch 2007-10-10 00:12:41 -04:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dca I/OAT: Add DCA services 2007-10-16 09:43:09 -07:00
dio
dma I/OAT: Add completion callback for async_tx interface use 2007-10-18 14:37:32 -07:00
edac NULL terminate the pci_device_ids in pasemi_edac 2007-10-19 11:53:56 -07:00
eisa signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
fc4 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
firewire firewire: fw-cdev: reorder wakeup vs. spinlock 2007-10-17 00:00:10 +02:00
firmware define global BIT macro 2007-10-19 11:53:42 -07:00
hid Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
hwmon Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-19 15:06:00 -07:00
i2c i2c-pxa, rename BIT macro to PXA_BIT 2007-10-19 11:53:42 -07:00
ide remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
ieee1394 ieee1394: ieee1394_core.c: use DEFINE_SPINLOCK for spinlock definition 2007-10-16 23:59:59 +02:00
infiniband [INET]: Justification for local port range robustness. 2007-10-18 22:00:17 -07:00
input Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-19 15:06:00 -07:00
isdn isdn/sc: remove unused REQUEST_IRQ and unnecessary header file 2007-10-19 11:53:34 -07:00
kvm sched: guest CPU accounting: maintain guest state in KVM 2007-10-15 17:00:19 +02:00
leds Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
lguest Merge branch 'xen-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2007-10-17 11:10:11 -07:00
macintosh get rid of input BIT* duplicate defines 2007-10-19 11:53:42 -07:00
mca
md dm io:ctl use constant struct size 2007-10-20 02:00:58 +01:00
media Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
message I2O: Fix "defined but not used" build warnings 2007-10-17 08:42:56 -07:00
mfd
misc Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2007-10-19 13:12:46 -07:00
mmc mmc: at91_mci: cleanup: use MCI_ERRORS 2007-10-17 21:35:10 +02:00
mtd Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
net Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2007-10-19 13:12:46 -07:00
nubus
of [SPARC/64]: Consolidate of_register_driver 2007-10-17 21:17:42 -07:00
oprofile
parisc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
parport sysctl: parport remove binary paths 2007-10-18 14:37:23 -07:00
pci Get rid of unused variable warning in drivers/pci/hotplug/pci_hotplug_core.c 2007-10-15 09:07:58 -07:00
pcmcia remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
pnp PNP: add debug message for adding new device 2007-10-17 08:43:04 -07:00
power Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ps3 remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
rapidio
rtc remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
s390 remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
sbus [SPARC] Videopix Frame Grabber: Convert device_lock_sem to mutex 2007-10-17 19:40:31 -07:00
scsi Change struct marker users 2007-10-19 11:53:53 -07:00
serial amba-pl011, rename BIT macro 2007-10-19 11:53:42 -07:00
sh
sn
spi Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
ssb [PATCH] ssb: fix build failure 2007-10-16 21:04:11 -04:00
tc lk201: remove obsolete driver 2007-10-17 08:42:57 -07:00
telephony kconfig: syntax cleanup - drop support for "depends/requires/def_boolean" 2007-10-12 21:20:32 +02:00
uio
usb Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
video Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86 2007-10-19 15:06:00 -07:00
w1 Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
watchdog remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
xen Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
zorro
Kconfig mv watchdog tree under drivers 2007-10-18 10:39:03 +00:00
Makefile Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2007-10-19 13:12:46 -07:00