Jan Kara [Thu, 6 Aug 2009 21:29:34 +0000 (23:29 +0200)]
ocfs2: Fix possible deadlock when extending quota file
In OCFS2, allocator locks rank above transaction start. Thus we
cannot extend quota file from inside a transaction less we could
deadlock.
We solve the problem by starting transaction not already in
ocfs2_acquire_dquot() but only in ocfs2_local_read_dquot() and
ocfs2_global_read_dquot() and we allocate blocks to quota files before starting
the transaction. In case we crash, quota files will just have a few blocks
more but that's no problem since we just use them next time we extend the
quota file.
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Sunil Mushran [Thu, 6 Aug 2009 23:12:58 +0000 (16:12 -0700)]
ocfs2: Initialize the cluster we're writing to in a non-sparse extend
In a non-sparse extend, we correctly allocate (and zero) the clusters between
the old_i_size and pos, but we don't zero the portions of the cluster we're
writing to outside of pos<->len.
It handles clustersize > pagesize and blocksize < pagesize.
[Cleaned up by Joel Becker.]
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jan Kara [Wed, 22 Jul 2009 11:17:20 +0000 (13:17 +0200)]
ocfs2: Remove syncjiff field from quota info
syncjiff is just a converted value of syncms. Some places which
are updating syncms forgot to update syncjiff as well. Since the
conversion is just a simple division / multiplication and it does
not happen frequently, just remove the syncjiff field to avoid
forgotten conversions.
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jan Kara [Wed, 22 Jul 2009 11:17:17 +0000 (13:17 +0200)]
ocfs2: Initialize blocks allocated to local quota file
When we extend local quota file, we should initialize data
in newly allocated block. Firstly because on recovery we could
parse bogus data, secondly so that block checksums are properly
computed.
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jan Kara [Wed, 22 Jul 2009 11:17:16 +0000 (13:17 +0200)]
ocfs2: Mark buffer uptodate before calling ocfs2_journal_access_dq()
In a code path extending local quota files we marked new header
buffer uptodate only after calling ocfs2_journal_access_dq() which
triggers a bug. Fix it and also call ocfs2 variant of the function
marking buffer uptodate.
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jan Kara [Wed, 22 Jul 2009 11:17:15 +0000 (13:17 +0200)]
ocfs2: Make global quota files blocksize aligned
Change i_size of global quota files so that it always remains aligned to block
size. This is mainly because the end of quota block may contain checksum (if
checksumming is enabled) and it's a bit awkward for it to be "outside" of quota
file (and it makes life harder for ocfs2-tools).
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Tao Ma [Thu, 23 Jul 2009 00:12:58 +0000 (08:12 +0800)]
ocfs2: Use ocfs2_rec_clusters in ocfs2_adjust_adjacent_records.
In ocfs2_adjust_adjacent_records, we will adjust adjacent records
according to the extent_list in the lower level. But actually
the lower level tree will either be a leaf or a branch. If we only
use ocfs2_is_empty_extent we will meet with some problem if the lower
tree is a branch (tree_depth > 1). So use !ocfs2_rec_clusters instead.
And actually only the leaf record can have holes. So add a BUG_ON
for non-leaf branch.
Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jan Kara [Mon, 20 Jul 2009 10:12:36 +0000 (12:12 +0200)]
ocfs2: Fix deadlock on umount
In commit ea455f8ab68338ba69f5d3362b342c115bea8e13, we moved the dentry lock
put process into ocfs2_wq. This causes problems during umount because ocfs2_wq
can drop references to inodes while they are being invalidated by
invalidate_inodes() causing all sorts of nasty things (invalidate_inodes()
ending in an infinite loop, "Busy inodes after umount" messages etc.).
We fix the problem by stopping ocfs2_wq from doing any further releasing of
inode references on the superblock being unmounted, wait until it finishes
the current round of releasing and finally cleaning up all the references in
dentry_lock_list from ocfs2_put_super().
The issue was tracked down by Tao Ma <tao.ma@oracle.com>.
Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Tao Ma [Tue, 21 Jul 2009 07:42:05 +0000 (15:42 +0800)]
ocfs2: Add extra credits and access the modified bh in update_edge_lengths.
In normal tree rotation left process, we will never touch the tree
branch above subtree_index and ocfs2_extend_rotate_transaction doesn't
reserve the credits for them either.
But when we want to delete the rightmost extent block, we have to update
the rightmost records for all the rightmost branch(See
ocfs2_update_edge_lengths), so we have to allocate extra credits for them.
What's more, we have to access them also.
Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Wengang Wang [Mon, 13 Jul 2009 03:38:58 +0000 (11:38 +0800)]
ocfs2: Fail ocfs2_get_block() immediately when a block needs allocation
ocfs2_get_block() does no allocation. Hole filling for writes should
have happened farther up in the call chain. We detect this case and
print an error, but we then continue with the function. We should be
exiting immediately.
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
ocfs2: Fix compilation warning for fs/ocfs2/xattr.c
gcc 4.4.1 generates the following build warning on i386:
CC [M] fs/ocfs2/xattr.o
fs/ocfs2/xattr.c: In function ‘ocfs2_xattr_block_get’:
fs/ocfs2/xattr.c:1055: warning: ‘block_off’ may be used uninitialized in this function
The following fix is based on a similar approach by David Howells
few days back: http://lkml.org/lkml/2009/7/9/109,
Signed-off-by: Subrata Modak<subrata@linux.vnet.ibm.com>, Signed-off-by: Joel Becker <joel.becker@oracle.com>
ocfs2: Initialize count in aio_write before generic_write_checks
generic_write_checks() expects count to be initialized to the size of
the write. Writes to files open with O_DIRECT|O_LARGEFILE write 0 bytes
because count is uninitialized.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.de> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jeff Liu [Tue, 7 Jul 2009 07:51:40 +0000 (15:51 +0800)]
ocfs2: trivial fix for s/migrate/migration/ in dlmrecovery.c logging
in dlmrecovery.c:1121, replace 'migrate' to 'migration' to keep the consistency
by comparing to other lines with the similar log info in the same file.
Signed-off-by: Jeff Liu <jeff.liu@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Jeff Mahoney [Tue, 7 Jul 2009 21:22:12 +0000 (17:22 -0400)]
ocfs2: Fixup orphan scan cleanup after failed mount
If the mount fails for any reason, ocfs2_dismount_volume calls
ocfs2_orphan_scan_stop. It requires that ocfs2_orphan_scan_init
be called to setup the mutex and work queues, but that doesn't
happen if the mount has failed and we oops accessing an uninitialized
work queue.
This patch splits the init and startup of the orphan scan, eliminating
the oops.
Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Yinghai Lu [Wed, 8 Jul 2009 16:50:19 +0000 (09:50 -0700)]
x86: don't clear nodes_states[N_NORMAL_MEMORY] when numa is not compiled in
Alex found that specjbb2005 still can not run with hugepages on an
x86-64 machine. This only happens when numa is not compiled in.
The root cause: node_set_state will not set it back for us in that case,
so don't clear that when numa is not select in config
[ v2: use node_clear_state instead ] Reported-and-Tested-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Mon, 6 Jul 2009 20:05:40 +0000 (13:05 -0700)]
Remove multiple KERN_ prefixes from printk formats
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up
handling of log-levels and newlines") changed printk semantics. printk
lines with multiple KERN_<level> prefixes are no longer emitted as
before the patch.
<level> is now included in the output on each additional use.
Remove all uses of multiple KERN_<level>s in formats.
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 7 Jul 2009 15:39:41 +0000 (16:39 +0100)]
pty: Rework the pty layer to use the normal buffering logic
This fixes the ppp problems and various other issues with call locking
caused by one side of a pty called in one locking context trying to match
another with differing rules on the other side. We also get a big slack
space to work with that means we can bury the flow control deadlock case
for any conceivable real world situation.
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states
[CPUFREQ] fix (utter) cpufreq_add_dev mess
[CPUFREQ] Cleanup locking in conservative governor
[CPUFREQ] Cleanup locking in ondemand governor
[CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported
[CPUFREQ] Eliminate the recent lockdep warnings in cpufreq
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM: Clear -EAGAIN in dpm_prepare
x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR
Sheng Yang [Wed, 8 Jul 2009 10:52:52 +0000 (11:52 +0100)]
intel-iommu: Fix intel_iommu_unmap_range() with size 0
After some API change, intel_iommu_unmap_range() introduced a assumption that
parameter size != 0, otherwise the dma_pte_clean_range() would have a
overflowed argument. But the user like KVM don't have this assumption before,
then some BUG() triggered.
Fix it by ignoring size = 0.
Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The f_dev in _request_firmware() is allocated via the fw_setup_device()
and fw_register_device() calls and its class set to firmware_class (the
class release function is fw_dev_release).
Commit 6acf70f078ca replaced the kfree(dev) in fw_dev_release() with a
put_device() call but my understanding is that the release function is
called via put_device -> kobject_put -> kref_put -> koject_release etc.
and it should call kfree since it's the last to see this device
structure alive.
Because of that, the _request_firmware() function on its -ENOENT error
path only calls device_unregister(f_dev) which would eventually call
fw_dev_release() but there is no kfree (the subsequent put_device call
would just make the kref negative).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Free the memory allocated by memdup_user() in fs/sysfs/bin.c
Commit 1c8542c7bb replaced kmalloc() with memdup_user() in the write()
function but also dropped the kfree(temp). The memdup_user() function
allocates memory which is never freed.
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: gpio_mouse - use standard driver registration method
Input: mark serio and i8042 as suspended when hibernating too
Input: add support for generic GPIO-based matrix keypad
Input: arrange keyboards alphabetically
Input: gpio-keys - avoid possibility of sleeping in timer function
Input: gpio-keys - revert 'change timer to workqueue'
Input: dm355evm_keys - fix kconfig symbol names
Input: wacom - add DTF720a support and fix rotation on Intuos3
Input: i8042 - more reset quirks for MSI Wind-clone netbooks
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Don't use alloc_bootmem() in init_IRQ() path
powerpc: Fix spin_event_timeout() to be robust over context switches
powerpc: Use pr_devel() in do_dcache_icache_coherency()
powerpc/cell: Use pr_devel() in axon_msi.c
powerpc: Use pr_devel() in arch/powerpc/mm/gup.c
powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c
powerpc/perf_counter: Remove duplicated #include
powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c
powerpc/pseries: Use pr_devel() in xics.c
powerpc: Remove unnecessary semicolons
powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines
powerpc/44x: Fix build error with -Werror for Warp platform
powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep
powerpc/44x: Update Warp defconfig
- exit_mnt_ns() isn't used, remove it
- done that, sched.h and nsproxy.h inclusions aren't needed
- mount.h inclusion was need for vfsmount_lock, but no longer
- remove mnt_namespace.h inclusion from files which don't use anything
from mnt_namespace.h
In file included from fs/proc/kcore.c:17:
include/linux/elfcore.h: In function 'elf_core_copy_task_regs':
include/linux/elfcore.h:129: error: implicit declaration of function 'task_pt_regs'
Fix this by restoring the previous behavior of returning 0 for all arches
like UML that don't define task_pt_regs.
Sebastian Ott [Wed, 8 Jul 2009 11:26:05 +0000 (13:26 +0200)]
PM: Clear -EAGAIN in dpm_prepare
When the last device in the dpm list is unregistered directly after its
prepare() callback returned with -EAGAIN, the return code is passed to
the calling function, resulting in a suspend failure. Prevent this by
clearing the return code after -EAGAIN.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Peter Chubb [Wed, 8 Jul 2009 11:20:13 +0000 (13:20 +0200)]
x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR
Patch 08687aec71bc9134fe336e561f6did877bacf74fc0a (x86: unify
power/cpu_(32|64).c) renamed cpu_32.c to cpu.c, but did not update
the special compilation flags for the file for the new name.
This patch fixes the compilation flags, and therefore fixes resume
from suspend on my Acer Aspire One.
[rjw: The regression from 2.6.30 fixed by this patch is tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=13661]
Signed-off-by: Peter Chubb <peterc@nicta.com.au> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Input: mark serio and i8042 as suspended when hibernating too
Serio ports are not being restarted any longer because resume operations
after hibernate do nothing, since the device has not been marked as
suspended. This happens because suspend is only considering the SUSPEND
event but not the FREEZE event.
Note that this driver has still to migrate to dev_pm_ops, but this fixes
this particular bug now.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Grant Likely [Mon, 29 Jun 2009 13:40:51 +0000 (13:40 +0000)]
powerpc: Fix spin_event_timeout() to be robust over context switches
Current implementation of spin_event_timeout can be interrupted by an
IRQ or context switch after testing the condition, but before checking
the timeout. This can cause the loop to report a timeout when the
condition actually became true in the middle.
This patch adds one final check of the condition upon exit of the loop
if the last test of the condition was still false.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Wed, 17 Jun 2009 18:13:50 +0000 (18:13 +0000)]
powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.
In particular, pSeries_lpar_hpte_insert() goes from 185 instructions
to 77 instructions as a result of this patch. Luckily that code
isn't called very often ...
With CONFIG_DYNAMIC_DEBUG=y:
size before:
text data bss dec hex filename
7284 1552 296 9132 23ac platforms/pseries/lpar.o
size after:
text data bss dec hex filename
5806 1096 296 7198 1c1e platforms/pseries/lpar.o
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
quota: Fix possible deadlock during parallel quotaon and quotaoff
The following test script triggers a deadlock on ext2 filesystem:
while true; do quotaon /dev/hda >&/dev/null; usleep $RANDOM; done &
while true; do quotaoff /dev/hda >&/dev/null; usleep $RANDOM; done &
I found there is a potential deadlock between quotaon and quotaoff (or
quotasync). Basically, all of quotactl operations need to be protected by
dqonoff_mutex. vfs_quota_off and vfs_quota_sync also call sb->s_op->quota_write
that needs to grab the i_mutex of the quota file. But in vfs_quota_on_inode
(called from quotaon operation), the current code tries to grab the i_mutex of
the quota file first before getting quonoff_mutex.
Reverse the order in which we take locks in vfs_quota_on_inode().
Jan Kara: Changed changelog to be more readable, made lockdep happy with
I_MUTEX_QUOTA.
Signed-off-by: Jiaying Zhang <jiayingz@google.com> Signed-off-by: Jan Kara <jack@suse.cz>
Mark Langsdorf [Sun, 26 Jul 2009 15:55:25 +0000 (10:55 -0500)]
[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-states
Provide support for family 0xf processors with 2 P-states
below the elevator voltage. Remove the checks that prevent
this configuration from being supported and increase the
transition voltage to prevent errors during the transition.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
OK, I've tried to clean it up the best I could, but please test this with
concurrent cpu hotplug and cpufreq add/remove in loops. I'm sure we will make
other interesting findings.
This is step one of fixing the overall locking dependency mess in cpufreq.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> CC: rjw@sisk.pl CC: mingo@elte.hu CC: Shaohua Li <shaohua.li@intel.com> CC: Pekka Enberg <penberg@cs.helsinki.fi> CC: Dave Young <hidave.darkstar@gmail.com> CC: "Rafael J. Wysocki" <rjw@sisk.pl> CC: Rusty Russell <rusty@rustcorp.com.au> CC: sven.wegener@stealer.net CC: cpufreq@vger.kernel.org CC: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
[CPUFREQ] Cleanup locking in conservative governor
Redesign the locking inside conservative driver. Make dbs_mutex handle all the
global state changes inside the driver and invent a new percpu mutex
to serialize percpu timer and frequency limit change.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
Redesign the locking inside ondemand driver. Make dbs_mutex handle all the
global state changes inside the driver and invent a new percpu mutex
to serialize percpu timer and frequency limit change.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
[CPUFREQ] Mark policy_rwsem as going static in cpufreq.c wont be exported
lock_policy_rwsem_* and unlock_policy_rwsem_* routines in cpufreq.c are
currently exported to drivers. Improper use of those locks can
result in deadlocks and it is better to keep the locks localized.
Two previous in-kernel users of these interfaces (ondemand and conservative),
do not use this interfaces any more. Schedule them for removal.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
[CPUFREQ] Eliminate the recent lockdep warnings in cpufreq
Commit b14893a62c73af0eca414cfed505b8c09efc613c although it was very
much needed to properly cleanup ondemand timer, opened-up a can of worms
related to locking dependencies in cpufreq.
Patch here defines the need for dbs_mutex and cleans up its usage in
ondemand governor. This also resolves the lockdep warnings reported here
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: fix usage of bios intcall()
x86: Remove unused function lapic_watchdog_ok()
x86: Remove unused variable disable_x2apic
x86, kvm: Fix section mismatches in kvm.c
x86: Add missing annotation to arch/x86/lib/copy_user_64.S::copy_to_user
x86: Fix fixmap page order for FIX_TEXT_POKE0,1
amd-iommu: set evt_buf_size correctly
amd-iommu: handle alias entries correctly in init code
x86: Fix printk call in print_local_apic()
x86: Declare check_efer() before it gets used
x86: Mark device_nb as static and fix NULL noise
x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1
xen: Use kcalloc() in xen_init_IRQ()
x86: Fix fixmap ordering
x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (39 commits)
Revert "p54: Use SKB list handling helpers instead of by-hand code."
sctp: fix warning at inet_sock_destruct() while release sctp socket
tun/tap: Fix crashes if open() /dev/net/tun and then poll() it.
dsa: fix 88e6xxx statistics counter snapshotting
forcedeth: Fix NAPI race.
drivers/net/smsc911x.c: Fix resource size off by 1 error
pcnet_cs: add new id
bnx2x: Fix the maximal values of coalescing timeouts.
bnx2x: Disable HC coalescing when setting timeout to zero.
tun: Fix device unregister race
be2net: fix spurious interrupt handling in intx mode
e1000e: disable K1 at 1000Mbps for 82577/82578
e1000e: delay second read of PHY_STATUS register on failure of first read
e1000e: prevent NVM corruption on sectors larger than 4K
e1000e: do not write SmartSpeed register bits on parts without support
e1000e: delay after LCD reset and proper checks for PHY configuration done
e1000e: PHY loopback broken on 82578
ixgbe: Not allow 8259x unsupported wol options change from ethtool
ixgbe: fix inconsistent SFP/SFP+ failure results.
ixgbe: fix regression on some 82598 adapters
...
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Fix IRQ swizzling for ARI-enabled devices
ia64/PCI: adjust section annotation for pcibios_setup()
x86/PCI: get root CRS before scanning children
x86/PCI: fix boundary checking when using root CRS
PCI MSI: Fix restoration of MSI/MSI-X mask states in suspend/resume
PCI MSI: Unmask MSI if setup failed
PCI MSI: shorten PCI_MSIX_ENTRY_* symbol names
PCI: make pci_name() take const argument
PCI: More PATA quirks for not entering D3
PCI: fix kernel-doc warnings
PCI: check if bus has a proper bridge device before triggering SBR
PCI: remove pci_dac_dma_... APIs on mn10300
PCI ECRC: Remove unnecessary semicolons
PCI MSI: Return if alloc_msi_entry for MSI-X failed
Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Fix cast warning for init.c
microblaze: Wire up new syscalls
microblaze: use generic syscalls.h
microblaze: clean up signal handling
microblaze: convert all simple headers to use asm-generic
microblaze: use the generic lib/checksum.c
microblaze: fall back on generic header files for the ABI
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
SLAB: Fix lockdep annotations
fix RCU-callback-after-kmem_cache_destroy problem in sl[aou]b
* git://git.infradead.org/iommu-2.6:
intel-iommu: Don't use identity mapping for PCI devices behind bridges
intel-iommu: Use iommu_should_identity_map() at startup time too.
intel-iommu: No mapping for non-PCI devices
intel-iommu: Restore DMAR_BROKEN_GFX_WA option for broken graphics drivers
intel-iommu: Add iommu_should_identity_map() function
intel-iommu: Fix reattaching of devices to identity mapping domain
intel-iommu: Don't set identity mapping for bypassed graphics devices
intel-iommu: Fix dma vs. mm page confusion with aligned_nrpages()
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: sbp2: add support for disks >2 TB (and 16 bytes long CDBs)
firewire: sbp2: add support for disks >2 TB (and 16 bytes long CDBs)
firewire: core: do not DMA-map stack addresses
platform data defined in machine code should be setting using
s3c_fb_set_platdata().
Signed-off-by: InKi Dae <inki.dae@samsung.com> Cc: Kyungmin Park <kmpark@infradead.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kevin Cernekee [Sun, 5 Jul 2009 19:08:19 +0000 (12:08 -0700)]
Fix virt_to_phys() warnings
These warnings were observed on MIPS32 using 2.6.31-rc1 and gcc-4.2.0:
mm/page_alloc.c: In function 'alloc_pages_exact':
mm/page_alloc.c:1986: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast
drivers/usb/mon/mon_bin.c: In function 'mon_alloc_buff':
drivers/usb/mon/mon_bin.c:1264: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast
Josef Bacik [Sun, 5 Jul 2009 19:08:18 +0000 (12:08 -0700)]
mm: mark page accessed before we write_end()
In testing a backport of the write_begin/write_end AOPs, a 10% re-read
regression was noticed when running iozone. This regression was
introduced because the old AOPs would always do a mark_page_accessed(page)
after the commit_write, but when the new AOPs where introduced, the only
place this was kept was in pagecache_write_end().
This patch does the same thing in the generic case as what is done in
pagecache_write_end(), which is just to mark the page accessed before we
do write_end().
Signed-off-by: Josef Bacik <jbacik@redhat.com> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
elf: fix multithreaded program core dumping on arm
Fix the multithread program core thread message error.
This issue affects arches with neither has CORE_DUMP_USE_REGSET nor
ELF_CORE_COPY_TASK_REGS, ARM is one of them.
The thread message of core file is generated in elf_dump_thread_status.
The register values is set by elf_core_copy_task_regs in this function.
If an arch doesn't define ELF_CORE_COPY_TASK_REGS,
elf_core_copy_task_regs() will do nothing. Then the core file will not
have the register message of thread.
So add elf_core_copy_regs to set regiser values if ELF_CORE_COPY_TASK_REGS
doesn't define.
return (0);
}
arm-xxx-gcc -g -lpthread 1.c -o 1
copy 1.c and 1 to a arm board.
Goto this board.
ulimit -c 1800000
./1
# ./1
1
2
1
...
...
1
1: 1.c:37: main: Assertion `0' failed.
Aborted (core dumped)
Then you can get a core file.
gdb 1 core.xxx
Without the patch:
(gdb) info threads
3 process 909 0x00000000 in ?? ()
2 process 908 0x00000000 in ?? ()
* 1 process 907 0x4a6e2238 in raise () from /lib/libc.so.6
You can found that the pc of 909 and 908 is 0x00000000.
With the patch:
(gdb) info threads
3 process 885 0x4a749974 in nanosleep () from /lib/libc.so.6
2 process 884 0x4a749974 in nanosleep () from /lib/libc.so.6
* 1 process 883 0x4a6e2238 in raise () from /lib/libc.so.6
The pc of 885 and 884 is right.
Signed-off-by: Hui Zhu <teawater@gmail.com> Cc: Amerigo Wang <xiyou.wangcong@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
sys_sync(): fix 16% performance regression in ffsb create_4k test
I run many ffsb test cases on JBODs (typically 13/12 disks). Comparing
with kernel 2.6.30, 2.6.31-rc1 has about 16% regression with
ffsb_create_4k. The sub test case creates files continuously for 10
minitues and every file is 1MB.
vfs: Make sys_sync() use fsync_super() (version 4)
It is unnecessarily fragile to have two places (fsync_super() and do_sync())
doing data integrity sync of the filesystem. Alter __fsync_super() to
accommodate needs of both callers and use it. So after this patch
__fsync_super() is the only place where we gather all the calls needed to
properly send all data on a filesystem to disk.
As a matter of fact, ffsb calls sys_sync in the end to make sure all data
is flushed to disks and the flushing is counted into the result. vmstat
shows ffsb is blocked when syncing for a long time. With 2.6.30, ffsb is
blocked for a short time.
I checked the patch and did experiments to recover the original methods.
Eventually, the root cause is the patch deletes the calling to
wakeup_pdflush when syncing, so only ffsb is blocked on disk I/O.
wakeup_pdflush could ask pdflush to write back pages with ffsb at the
same time.
[akpm@linux-foundation.org: restore comment too] Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
vlynq: correct typo of missing "CONFIG_" prefix in ifdef
Fix a typo in the vlynq bus driver which was missing the CONFIG_ prefix to
turn on debugging code.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
sctp: fix warning at inet_sock_destruct() while release sctp socket
Commit 'net: Move rx skb_orphan call to where needed' broken sctp protocol
with warning at inet_sock_destruct(). Actually, sctp can do this right with
sctp_sock_rfree_frag() and sctp_skb_set_owner_r_frag() pair.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
tun/tap: Fix crashes if open() /dev/net/tun and then poll() it.
Fix NULL pointer dereference in tun_chr_pool() introduced by commit 33dccbb050bbe35b88ca8cf1228dcf3e4d4b3554 ("tun: Limit amount of queued
packets per device") and triggered by this code:
Reported-by: Eugene Kapun <abacabadabacaba@gmail.com> Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
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