- set the IRQF_VALID flag for the other irqs bound to evtchns. It causes
IRQ_NOAUTOEN to be set and as a consequence irq_unmask is going to be
called when a xenbus driver calls request_irq.
When unmask_evtchn is called, if we already have an event pending, we
just set evtchn_pending_sel waiting for irq to be re-enabled. That is
because x86 pv guests overwrite the irq_enable pvops with
xen_irq_enable_direct that also handles pending events.
However x86 HVM guests and ARM guests do not change or do not have the
irq_enable pvop, so this scheme doesn't work properly for them.
Considering that having a pending irq when unmask_evtchn is called is
not very common, and it is better to keep the native_irq_enable
implementation for HVM guests and ARM guests, the best thing to do is
just using the EVTCHNOP_unmask callback (Xen re-injects pending
events in response).
Considering that this patch fixes a bug on x86 for current PV on HVM
guests, I'll resend it separately.
We used to rely on a core_initcall to initialize Xen on ARM, however
core_initcalls are actually called after early consoles are initialized.
That means that hvc_xen.c is going to be initialized before Xen.
Given the lack of a better alternative, just call a new Xen
initialization function (xen_guest_init) from xen_cons_init.
xen_guest_init has to be arch independant, so write both an ARM and an
x86 implementation. The x86 implementation is currently empty because we
can be sure that xen_hvm_guest_init is called early enough.
Probably we can get rid of this as soon as we have better DT support.
Daniel De Graaf [Wed, 14 Dec 2011 20:12:13 +0000 (15:12 -0500)]
xen/netback: Enable netback on HVM guests
Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Daniel De Graaf [Wed, 14 Dec 2011 20:12:11 +0000 (15:12 -0500)]
xen/grant-table: Support mappings required by blkback
Add support for mappings without GNTMAP_contains_pte. This was not
supported because the unmap operation assumed that this flag was being
used; adding a parameter to the unmap operation to allow the PTE
clearing to be disabled is sufficient to make unmap capable of
supporting either mapping type.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
[v1: Fix cleanpatch warnings] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Daniel De Graaf [Wed, 14 Dec 2011 20:12:10 +0000 (15:12 -0500)]
xenbus: Use grant-table wrapper functions
For xenbus_{map,unmap}_ring to work on HVM, the grant table operations
must be set up using the gnttab_set_{map,unmap}_op functions instead of
directly populating the fields of gnttab_map_grant_ref. These functions
simply populate the structure on paravirtualized Xen; however, on HVM
they must call __pa() on vaddr when populating op->host_addr because the
hypervisor cannot directly interpret guest-virtual addresses.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
[v1: Fixed cleanpatch error] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Daniel De Graaf [Mon, 19 Dec 2011 19:55:14 +0000 (14:55 -0500)]
xenbus: Support HVM backends
Add HVM implementations of xenbus_(map,unmap)_ring_v(alloc,free) so
that ring mappings can be done without using GNTMAP_contains_pte which
is not supported on HVM. This also removes the need to use vmlist_lock
on PV by tracking the allocated xenbus rings.
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
[v1: Fix compile error when XENBUS_FRONTEND is defined as module] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Annie Li [Tue, 22 Nov 2011 01:59:56 +0000 (09:59 +0800)]
xen/granttable: Keep code format clean
Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Annie Li <annie.li@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This patch implements support for multiple consoles:
consoles other than the first one are setup using the traditional xenbus
and grant-table based mechanism.
We use a list to keep track of the allocated consoles, we don't
expect too many of them anyway.
Changes in v3:
- call hvc_remove before removing the console from xenconsoles;
- do not lock xencons_lock twice in the destruction path;
- use the DEFINE_XENBUS_DRIVER macro.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Jan Beulich [Thu, 22 Dec 2011 09:08:13 +0000 (09:08 +0000)]
Xen: consolidate and simplify struct xenbus_driver instantiation
The 'name', 'owner', and 'mod_name' members are redundant with the
identically named fields in the 'driver' sub-structure. Rather than
switching each instance to specify these fields explicitly, introduce
a macro to simplify this.
Eliminate further redundancy by allowing the drvname argument to
DEFINE_XENBUS_DRIVER() to be blank (in which case the first entry from
the ID table will be used for .driver.name).
Also eliminate the questionable xenbus_register_{back,front}end()
wrappers - their sole remaining purpose was the checking of the
'owner' field, proper setting of which shouldn't be an issue anymore
when the macro gets used.
v2: Restore DRV_NAME for the driver name in xen-pciback.
Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Instead of asking the platform to implement both sched_clock()
itself and the rollover callback, simply register a read()
function, and let the ARM code care about sched_clock() itself,
the conversion to ns and the rollover. sched_clock() uses
this read() function as an indirection to the platform code.
If the platform doesn't provide a read(), the code falls back
to the jiffy counter (just like the default sched_clock).
This allow some simplifications and possibly some footprint gain
when multiple platforms are compiled in. Among the drawbacks,
the removal of the *_fixed_sched_clock optimization which could
negatively impact some platforms (sa1100, tegra, versatile
and omap).
Tested on 11MPCore, OMAP4 and Tegra.
Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Tested-by: Jamie Iles <jamie@jamieiles.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Marc Zyngier [Fri, 20 Jan 2012 12:05:07 +0000 (12:05 +0000)]
ARM: architected timers: Add A15 specific sched_clock implementation
Provide an A15 sched_clock implementation using the virtual counter,
which is thought to be more useful than the physical one in a
virtualised environment, as it can offset the time spent in another
VM or the hypervisor.
Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Marc Zyngier [Fri, 20 Jan 2012 12:05:06 +0000 (12:05 +0000)]
ARM: local timers: Add A15 architected timer support
Add support for the A15 generic timer and clocksource.
As the timer generates interrupts on a different PPI depending
on the execution mode (normal or secure), it is possible to
register two different PPIs.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
David Vrabel [Fri, 17 Feb 2012 12:35:48 +0000 (12:35 +0000)]
HACK! arm: set v7 translation table entries as uncachable
There appears to be a bug in the model where the MMU does not
correctly see updates to translation table entries if they are marked
as cachable. This bug only happens when running under the Xen
hypervisor.
As a workaround, mark the entries as uncachable. This decreases
performance.
bind_evtchn_to_irqhandler can legitimately return 0 (irq 0), it is not
an error.
If Linux is running as an HVM domain and is running as Dom0, use
xenstored_local_init to initialize the xenstore page and event channel,
and do not call xs_reset_watches at boot.
xen/arm: Introduce xen_pfn_t for pfn and mfn types
All the original Xen headers have xen_pfn_t as mfn and pfn type, however
when they have been imported in Linux, xen_pfn_t has been replaced with
unsigned long. That might work for x86 and ia64 but it does not for arm.
Bring back xen_pfn_t and let each architecture define xen_pfn_t as they
see fit.
David Vrabel [Mon, 9 Jan 2012 16:13:19 +0000 (16:13 +0000)]
ARM: vexpress: rename device tree "memory@..." nodes to "memory"
If CONFIG_ARM_ATAG_DTB_COMPAT enabled it expects the memory
information to be in a node named "memory". If the memory is
described in a different node, the device tree will end up with two
nodes describing the memory.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
David Vrabel [Thu, 22 Dec 2011 15:32:56 +0000 (15:32 +0000)]
HACK! call flush_cache_all() after updating translation table entries
Updates to translation tables aren't working right when running as a
Xen guest unless the cache is flushed. This is very much a big hammer
to crack a small nut.
David Vrabel [Fri, 6 Jan 2012 16:50:37 +0000 (16:50 +0000)]
arm: vexpress: add device tree for v7A envelope model
Add the device tree for the Versatile Express RTSM with the ARM
Envelope Model of a v7A processor. This is based off the Cortex A15
device tree with the peripherals that aren't modelled removed and only
a single CPU.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Will Deacon [Tue, 22 Nov 2011 17:30:28 +0000 (17:30 +0000)]
ARM: LPAE: add ISBs around MMU enabling code
Before we enable the MMU, we must ensure that the TTBR registers contain
sane values. After the MMU has been enabled, we jump to the *virtual*
address of the following function, so we also need to ensure that the
SCTLR write has taken effect.
This patch adds ISB instructions around the SCTLR write to ensure the
visibility of the above.
Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pawel Moll [Fri, 9 Dec 2011 18:25:14 +0000 (18:25 +0000)]
ARM: vexpress: Use FDT data in platform SMP calls
If ct_desc is not set (so a board was booted with DT machine ID)
try to look for "arm,cortex-a9-scu" node and initialize the SCU
using base address in "reg" property.
Otherwise assume that there is no special SCU initialization
required and initialize CPUs basing on numbers of "cpu" type
devices in "cpus" node of the Device Tree.
Pawel Moll [Thu, 15 Dec 2011 10:44:25 +0000 (10:44 +0000)]
ARM: versatile: Map local timers using Device Tree when possible
Try to map TWD registers basing on a "arm,smp-twd" Device Tree
node (compatible value as used in Highbank's DT). This overrides
existing twd_base value.
Pawel Moll [Thu, 8 Dec 2011 18:17:31 +0000 (18:17 +0000)]
ARM: vexpress: Get rid of MMIO_P2V
This patch gets rid of the MMIO_P2V and __MMIO_P2V macros,
defining constant virtual base for motherboard and tile
peripherals instead.
Additionally, in preparation for the new motherboard memory
map, the motherboard peripherals are using base pointers
calculated in runtime, instead of compile-time calculated
values.
Tested-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Linus Torvalds [Thu, 15 Dec 2011 02:25:58 +0000 (18:25 -0800)]
Merge tag 'tytso-for-linus-20111214' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* tag 'tytso-for-linus-20111214' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: handle EOF correctly in ext4_bio_write_page()
ext4: remove a wrong BUG_ON in ext4_ext_convert_to_initialized
ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers()
ext4: avoid potential hang in mpage_submit_io() when blocksize < pagesize
ext4: avoid hangs in ext4_da_should_update_i_disksize()
ext4: display the correct mount option in /proc/mounts for [no]init_itable
ext4: Fix crash due to getting bogus eh_depth value on big-endian systems
ext4: fix ext4_end_io_dio() racing against fsync()
.. using the new signed tag merge of git that now verifies the gpg
signature automatically. Yay. The branchname was just 'dev', which is
prettier. I'll tell Ted to use nicer tag names for future cases.
Linus Torvalds [Thu, 15 Dec 2011 02:22:55 +0000 (18:22 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs/ncpfs: fix error paths and goto statements in ncp_fill_super()
configfs: register_filesystem() called too early
fuse: register_filesystem() called too early
ubifs: too early register_filesystem()
... and the same kind of leak for mqueue
procfs: fix a vfsmount longterm reference leak
Yongqiang Yang [Wed, 14 Dec 2011 02:51:55 +0000 (21:51 -0500)]
ext4: avoid potential hang in mpage_submit_io() when blocksize < pagesize
If there is an unwritten but clean buffer in a page and there is a
dirty buffer after the buffer, then mpage_submit_io does not write the
dirty buffer out. As a result, da_writepages loops forever.
This patch fixes the problem by checking dirty flag.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
Andrea Arcangeli [Wed, 14 Dec 2011 02:41:15 +0000 (21:41 -0500)]
ext4: avoid hangs in ext4_da_should_update_i_disksize()
If the pte mapping in generic_perform_write() is unmapped between
iov_iter_fault_in_readable() and iov_iter_copy_from_user_atomic(), the
"copied" parameter to ->end_write can be zero. ext4 couldn't cope with
it with delayed allocations enabled. This skips the i_disksize
enlargement logic if copied is zero and no new data was appeneded to
the inode.
gdb> bt
#0 0xffffffff811afe80 in ext4_da_should_update_i_disksize (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x1\
08000, len=0x1000, copied=0x0, page=0xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2467
#1 ext4_da_write_end (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x108000, len=0x1000, copied=0x0, page=0\
xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2512
#2 0xffffffff810d97f1 in generic_perform_write (iocb=<value optimized out>, iov=<value optimized out>, nr_segs=<value o\
ptimized out>, pos=0x108000, ppos=0xffff88001e26be40, count=<value optimized out>, written=0x0) at mm/filemap.c:2440
#3 generic_file_buffered_write (iocb=<value optimized out>, iov=<value optimized out>, nr_segs=<value optimized out>, p\
os=0x108000, ppos=0xffff88001e26be40, count=<value optimized out>, written=0x0) at mm/filemap.c:2482
#4 0xffffffff810db5d1 in __generic_file_aio_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=0x1, ppos=0\
xffff88001e26be40) at mm/filemap.c:2600
#5 0xffffffff810db853 in generic_file_aio_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=<value optimi\
zed out>, pos=<value optimized out>) at mm/filemap.c:2632
#6 0xffffffff811a71aa in ext4_file_write (iocb=0xffff88001e26bde8, iov=0xffff88001e26bec8, nr_segs=0x1, pos=0x108000) a\
t fs/ext4/file.c:136
#7 0xffffffff811375aa in do_sync_write (filp=0xffff88003f606a80, buf=<value optimized out>, len=<value optimized out>, \
ppos=0xffff88001e26bf48) at fs/read_write.c:406
#8 0xffffffff81137e56 in vfs_write (file=0xffff88003f606a80, buf=0x1ec2960 <Address 0x1ec2960 out of bounds>, count=0x4\
000, pos=0xffff88001e26bf48) at fs/read_write.c:435
#9 0xffffffff8113816c in sys_write (fd=<value optimized out>, buf=0x1ec2960 <Address 0x1ec2960 out of bounds>, count=0x\
4000) at fs/read_write.c:487
#10 <signal handler called>
#11 0x00007f120077a390 in __brk_reservation_fn_dmi_alloc__ ()
#12 0x0000000000000000 in ?? ()
gdb> print offset
$22 = 0xffffffffffffffff
gdb> print idx
$23 = 0xffffffff
gdb> print inode->i_blkbits
$24 = 0xc
gdb> up
#1 ext4_da_write_end (file=0xffff88003f606a80, mapping=0xffff88001d3824e0, pos=0x108000, len=0x1000, copied=0x0, page=0\
xffffea0000d792e8, fsdata=0x0) at fs/ext4/inode.c:2512
2512 if (ext4_da_should_update_i_disksize(page, end)) {
gdb> print start
$25 = 0x0
gdb> print end
$26 = 0xffffffffffffffff
gdb> print pos
$27 = 0x108000
gdb> print new_i_size
$28 = 0x108000
gdb> print ((struct ext4_inode_info *)((char *)inode-((int)(&((struct ext4_inode_info *)0)->vfs_inode))))->i_disksize
$29 = 0xd9000
gdb> down
2467 for (i = 0; i < idx; i++)
gdb> print i
$30 = 0xd44acbee
This is 100% reproducible with some autonuma development code tuned in
a very aggressive manner (not normal way even for knumad) which does
"exotic" changes to the ptes. It wouldn't normally trigger but I don't
see why it can't happen normally if the page is added to swap cache in
between the two faults leading to "copied" being zero (which then
hangs in ext4). So it should be fixed. Especially possible with lumpy
reclaim (albeit disabled if compaction is enabled) as that would
ignore the young bits in the ptes.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
Linus Torvalds [Tue, 13 Dec 2011 23:02:31 +0000 (15:02 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid"
x86, efi: Make efi_call_phys_{prelog,epilog} CONFIG_RELOCATABLE-aware
Linus Torvalds [Tue, 13 Dec 2011 22:59:42 +0000 (14:59 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: add missing spin_unlock at ceph_mdsc_build_path()
ceph: fix SEEK_CUR, SEEK_SET regression
crush: fix mapping calculation when force argument doesn't exist
ceph: use i_ceph_lock instead of i_lock
rbd: remove buggy rollback functionality
rbd: return an error when an invalid header is read
ceph: fix rasize reporting by ceph_show_options
Linus Torvalds [Tue, 13 Dec 2011 22:58:56 +0000 (14:58 -0800)]
Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
* 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
writeback: set max_pause to lowest value on zero bdi_dirty
writeback: permit through good bdi even when global dirty exceeded
writeback: comment on the bdi dirty threshold
fs: Make write(2) interruptible by a fatal signal
writeback: Fix issue on make htmldocs
Sage Weil [Tue, 13 Dec 2011 17:19:26 +0000 (09:19 -0800)]
ceph: fix SEEK_CUR, SEEK_SET regression
Commit 06222e491e663dac939f04b125c9dc52126a75c4 got the if wrong so that
it always evaluates as true. This is semantically harmless, but makes
SEEK_CUR and SEEK_SET needlessly query the server.
Rewrite the if to explicitly enumerate the cases we DO need a valid i_size
to make this code less fragile.
Reported-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
Miklos Szeredi [Tue, 13 Dec 2011 10:40:59 +0000 (11:40 +0100)]
fuse: llseek fix race
Fix race between lseek(fd, 0, SEEK_CUR) and read/write. This was fixed in
generic code by commit 5b6f1eb97d (vfs: lseek(fd, 0, SEEK_CUR) race condition).
Roel Kluin [Tue, 13 Dec 2011 09:37:00 +0000 (10:37 +0100)]
fuse: fix llseek bug
The test in fuse_file_llseek() "not SEEK_CUR or not SEEK_SET" always evaluates
to true.
This was introduced in 3.1 by commit 06222e49 (fs: handle SEEK_HOLE/SEEK_DATA
properly in all fs's that define their own llseek) and changed the behavior of
SEEK_CUR and SEEK_SET to always retrieve the file attributes. This is a
performance regression.
Fix the test so that it makes sense.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: stable@vger.kernel.org CC: Josef Bacik <josef@redhat.com> CC: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Tue, 13 Dec 2011 06:06:55 +0000 (22:06 -0800)]
linux/log2.h: Fix rounddown_pow_of_two(1)
Exactly like roundup_pow_of_two(1), the rounddown version was buggy for
the case of a compile-time constant '1' argument. Probably because it
originated from the same code, sharing history with the roundup version
from before the bugfix (for that one, see commit 1a06a52ee1b0: "Fix
roundup_pow_of_two(1)").
However, unlike the roundup version, the fix for rounddown is to just
remove the broken special case entirely. It's simply not needed - the
generic code
1UL << ilog2(n)
does the right thing for the constant '1' argment too. The only reason
roundup needed that special case was because rounding up does so by
subtracting one from the argument (and then adding one to the result)
causing the obvious problems with "ilog2(0)".
But rounddown doesn't do any of that, since ilog2() naturally truncates
(ie "rounds down") to the right rounded down value. And without the
ilog2(0) case, there's no reason for the special case that had the wrong
value.
tl;dr: rounddown_pow_of_two(1) should be 1, not 0.
Linus Torvalds [Tue, 13 Dec 2011 04:06:13 +0000 (20:06 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined
mmc: sdhci-s3c: Remove old and misprototyped suspend operations
mmc: tmio: fix clock gating on platforms with a .set_pwr() method
mmc: sh_mmcif: fix clock gating on platforms with a .down_pwr() method
mmc: core: Fix typo at mmc_card_sleep
mmc: core: Fix power_off_notify during suspend
mmc: core: Fix setting power notify state variable for non-eMMC
mmc: core: Add quirk for long data read time
mmc: Add module.h include to sdhci-cns3xxx.c
mmc: mxcmmc: fix falling back to PIO
mmc: omap_hsmmc: DMA unmap only once in case of MMC error
Theodore Ts'o [Tue, 13 Dec 2011 03:06:18 +0000 (22:06 -0500)]
ext4: display the correct mount option in /proc/mounts for [no]init_itable
/proc/mounts was showing the mount option [no]init_inode_table when
the correct mount option that will be accepted by parse_options() is
[no]init_itable.