The log message level 'critical' is verbose enough, 'emergency' beeps on
all terminals.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
So to cache free space, we iterate every extent item to gather free space info.
When we have say 10,000 non-inline extent refs(such as BTRFS_EXTENT_DATA_REF),
it takes quite a long time, and since inline extent refs and non-inline ones have
same objectid in their keys, we can just re-search the tree with the next address
to skip non-inline references.
(This is found by dedup feature because dedup extents can end up with many
non-inline extent refs.)
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
I recently did some ENOSPC testing that involved filling the disk
while create and removing snapshots in a loop. During the test cycle,
I ran into an ENOSPC when trying to remove a snapshot, leaving the fs
stuck in ENOSPC even after a umount/mount cycle.
This patch allow subvolume removal to fall back onto the global
block reservation in order to succeed when it would have failed
otherwise.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
If we're looking for a metadata item in the tree and the
search fails with return value of 1, and the slot doesn't
point to the first item in the leaf, check if the previous
item in the leaf corresponds to an extent item for the same
object id - if it does, then don't do another tree search
to get it.
This optimization is already done by btrfs-progs.
V2: updated commit message.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Device scanning waits on the uuid_mutex, which can result in a very long
wait if dev delete is shrinking the device.
Signed-off-by: Carey Underwood <cwillu@cwillu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
We've been seeing spurious complaints out of lockdep because the lock class name
changes. This is happening because when we drop a snapshot we will lock a block
before we've read it in, which sets the lockdep class to whatever the default
is. Then once we read the thing in we reset the lockdep class to what it is
supposed to be, which blows lockdeps' mind. This patch should fix the problem,
it appears to be the only place where we do this sort of thing. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
With this fix the lzo code behaves like the zlib code by returning an
error
code when compression does not help reduce the size of the file.
This is currently not a bug since the compressed size is checked again
in
the calling method compress_file_range.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Previously we held the tree mod lock when adding stuff because we use it to
check and see if we truly do want to track tree modifications. This is
admirable, but GFP_ATOMIC in a critical area that is going to get hit pretty
hard and often is not nice. So instead do our basic checks to see if we don't
need to track modifications, and if those pass then do our allocation, and then
when we go to insert the new modification check if we still care, and if we
don't just free up our mod and return. Otherwise we're good to go and we can
carry on. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Here are two tiny staging tree fixes (well, one is for an iio driver,
but those updates come through the staging tree due to dependancies.)
One fixes a problem with an IIO driver, and the other fixes a bug in the
comedi driver core.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.21 (GNU/Linux)
iEYEABECAAYFAlIaSHgACgkQMUfUDdst+ykJsACgtiD3G2UFK6hwqvaiVKbT39E7
pNAAn32Q47GWkTLsrKlIWqOwhpnMb+mi
=8lmn
-----END PGP SIGNATURE-----
Merge tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are two tiny staging tree fixes (well, one is for an iio driver,
but those updates come through the staging tree due to dependancies)
One fixes a problem with an IIO driver, and the other fixes a bug in
the comedi driver core"
* tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: bug-fix NULL pointer dereference on failed attach
iio: adjd_s311: Fix non-scan mode data read
Here are two USB fixes for 3.11-rc7
One fixes a reported regression in the OHCI driver, and the other fixes
a reported build breakage in the USB phy drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.21 (GNU/Linux)
iEYEABECAAYFAlIaS6AACgkQMUfUDdst+yn3VgCgz2yVQXgy/yH2hmADV0CdhfdN
yV4AnRRWaD9HgyJ9sGp6x8Uzrcs4oJqr
=bSoP
-----END PGP SIGNATURE-----
Merge tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are two USB fixes for 3.11-rc7
One fixes a reported regression in the OHCI driver, and the other
fixes a reported build breakage in the USB phy drivers"
* tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: phy: fix build breakage
USB: OHCI: add missing PCI PM callbacks to ohci-pci.c
Pull ARM fixes from Russell King:
"This round of fixes is smaller than previous: a couple more updates
for the security fixes, and a one-liner kexec fix"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7816/1: CONFIG_KUSER_HELPERS: fix help text
ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
ARM: 7819/1: fiq: Cast the first argument of flush_icache_range()
Pull vfs fixes from Al Viro:
"Assorted fixes from the last week or so"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
VFS: collect_mounts() should return an ERR_PTR
bfs: iget_locked() doesn't return an ERR_PTR
efs: iget_locked() doesn't return an ERR_PTR()
proc: kill the extra proc_readfd_common()->dir_emit_dots()
cope with potentially long ->d_dname() output for shmem/hugetlb
- Revert a change in the ACPI video driver that caused the ACPI
backlight initialization to be carried out even if acpi_backlight=vendor
is passed in the kernel command line which turns out to break things
at least on one system.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=U8L0
-----END PGP SIGNATURE-----
Merge tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"I really hoped that it wouldn't be necessary to change anything in
ACPI at this point, but it turns out that we need to revert one more
ACPI video commit causing trouble.
This reverts a change in the ACPI video driver that caused the ACPI
backlight initialization to be carried out even if acpi_backlight=vendor
is passed in the kernel command line which turns out to break things
at least on one system"
* tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI / video: Always call acpi_video_init_brightness() on init"
This is a set of small bug fixes for lpfc and zfcp and a fix for a fairly
nasty bug in sg where a process which cancels I/O completes in a kernel thread
which would then try to write back to the now gone userspace and end up
writing to a random kernel address instead.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iQEcBAABAgAGBQJSGIaHAAoJEDeqqVYsXL0MbPUH/3UXceHlgYRrwYZ0C10Ao5XB
WA8RWsDsX9UJxG68zEd8ED1aRHhmkfm4pEdMQ8DHW7+B7mvNhpb6mF0wxvmS5aIj
OVI0G+3KmghA3aDWbTtg8ED0wJ4q3ftcyzl4Fhpat+yA4g/BW7iJNDCv17nvZ90f
hNmdGm23wuYCid7JWNDO79spSp0q6wPJhG6ynJYOtzX1GvpEliZiGB0IOR3K44nW
cF6+Uigs3+6RGXX9UHOMrk9Ug3YFHfok224vvydcbRXVh8uneB8RQ6tziJVFI8tE
WPgAv2oDzly8l+ku71CqrjzG7fSwCr9Urlog9cEugE1iUmFCIQm6xJcSSnGJqaY=
=jKT6
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of small bug fixes for lpfc and zfcp and a fix for a
fairly nasty bug in sg where a process which cancels I/O completes in
a kernel thread which would then try to write back to the now gone
userspace and end up writing to a random kernel address instead"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] zfcp: remove access control tables interface (keep sysfs files)
[SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops
[SCSI] zfcp: fix lock imbalance by reworking request queue locking
[SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal
[SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on
This should actually be returning an ERR_PTR on error instead of NULL.
That was how it was designed and all the callers expect it.
[AV: actually, that's what "VFS: Make clone_mnt()/copy_tree()/collect_mounts()
return errors" missed - originally collect_mounts() was expected to return
NULL on failure]
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
iget_locked() returns a NULL on error, it doesn't return an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The iget_locked() function returns NULL on error and never an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
proc_readfd_common() does dir_emit_dots() twice in a row,
we need to do this only once.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
dynamic_dname() is both too much and too little for those - the
output may be well in excess of 64 bytes dynamic_dname() assumes
to be enough (thanks to ashmem feeding really long names to
shmem_file_setup()) and vsnprintf() is an overkill for those
guys.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull libata fixes from Tejun Heo:
"This contains three commits all of which are updates for specific
devices which aren't too widespread. Pretty limited scope and nothing
too interesting or dangerous"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_fsl: save irqs while coalescing
libata: apply behavioral quirks to sil3826 PMP
sata, highbank: fix ordering of SGPIO signals
Pull cgroup fix from Tejun Heo:
"A late fix for cgroup.
This fixes a behavior regression visible to userland which was created
by a commit merged during -rc1. While the behavior change isn't too
likely to be noticeable, the fix is relatively low risk and we'll need
to backport it through -stable anyway if the bug gets released"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: fix a regression in validating config change
Pull drm fixes from Dave Airlie:
"Ben was on holidays for a week so a few nouveau regression fixes
backed up, but they all seem necessary.
Otherwise one i915 and one gma500 fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
gma500: Fix SDVO turning off randomly
drm/nv04/disp: fix framebuffer pin refcounting
drm/nouveau/mc: fix race condition between constructor and request_irq()
drm/nouveau: fix reclocking on nv40
drm/nouveau/ltcg: fix allocating memory as free
drm/nouveau/ltcg: fix ltcg memory initialization after suspend
drm/nouveau/fb: fix null derefs in nv49 and nv4e init
drm/i915: Invalidate TLBs for the rings after a reset
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
...
drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1
This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
...
In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1
Fix both issues.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit c1117afb85 (USB: OHCI: make ohci-pci a separate driver)
neglected to preserve the entries for the pci_suspend and pci_resume
driver callbacks. As a result, OHCI controllers don't work properly
during suspend and after hibernation.
This patch adds the missing callbacks to the driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Steve Cotton <steve@s.cotton.clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit dcd7b8bd63 ("staging: comedi: put
module _after_ detach" by myself) reversed a couple of calls in
`comedi_device_attach()` when recovering from an error returned by the
low-level driver's 'attach' handler. Unfortunately, that introduced a
NULL pointer dereference bug as `dev->driver` is NULL after the call to
`comedi_device_detach()`. We still have a pointer to the low-level
comedi driver structure in the `driv` variable, so use that instead.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge networking fixes from David Miller:
1) Revert Johannes Berg's genetlink locking fix, because it causes
regressions.
Johannes and Pravin Shelar are working on fixing things properly.
2) Do not drop ipv6 ICMP messages without a redirected header option,
they are legal. From Duan Jiong.
3) Missing error return propagation in probing of via-ircc driver.
From Alexey Khoroshilov.
4) Do not clear out broadcast/multicast/unicast/WOL bits in r8169 when
initializing, from Peter Wu.
5) realtek phy driver programs wrong interrupt status bit, from
Giuseppe CAVALLARO.
6) Fix statistics regression in AF_PACKET code, from Willem de Bruijn.
7) Bridge code uses wrong bitmap length, from Toshiaki Makita.
8) SFC driver uses wrong indexes to look up MAC filters, from Ben
Hutchings.
9) Don't pass stack buffers into usb control operations in hso driver,
from Daniel Gimpelevich.
10) Multiple ipv6 fragmentation headers in one packet is illegal and
such packets should be dropped, from Hannes Frederic Sowa.
11) When TCP sockets are "repaired" as part of checkpoint/restart, the
timestamp field of SKBs need to be refreshed otherwise RTOs can be
wildly off. From Andrey Vagin.
12) Fix memcpy args (uses 'address of pointer' instead of 'pointer') in
hostp driver. From Dan Carpenter.
13) nl80211hdr_put() doesn't return an ERR_PTR, but some code believes
it does. From Dan Carpenter.
14) Fix regression in wireless SME disconnects, from Johannes Berg.
15) Don't use a stack buffer for DMA in zd1201 USB wireless driver, from
Jussi Kivilinna.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
ipv4: expose IPV4_DEVCONF
ipv6: handle Redirect ICMP Message with no Redirected Header option
be2net: fix disabling TX in be_close()
Revert "genetlink: fix family dump race"
hso: Fix stack corruption on some architectures
hso: Earlier catch of error condition
sfc: Fix lookup of default RX MAC filters when steered using ethtool
bridge: Use the correct bit length for bitmap functions in the VLAN code
packet: restore packet statistics tp_packets to include drops
net: phy: rtl8211: fix interrupt on status link change
r8169: remember WOL preferences on driver load
via-ircc: don't return zero if via_ircc_open() failed
macvtap: Ignore tap features when VNET_HDR is off
macvtap: Correctly set tap features when IFF_VNET_HDR is disabled.
macvtap: simplify usage of tap_features
tcp: set timestamps for restored skb-s
bnx2x: set VF DMAE when first function has 0 supported VFs
bnx2x: Protect against VFs' ndos when SR-IOV is disabled
bnx2x: prevent VF benign attentions
bnx2x: Consider DCBX remote error
...
Merge fixes from Andrew Morton:
"A few fixes. One is a licensing change and I don't do licensing, so
please eyeball that one"
Licensing eye-balled.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
lib/lz4: correct the LZ4 license
memcg: get rid of swapaccount leftovers
nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection
nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error
drivers/platform/olpc/olpc-ec.c: initialise earlier
The LZ4 code is listed as using the "BSD 2-Clause License".
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Acked-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: Chanho Min <chanho.min@lge.com>
Cc: Richard Yao <ryao@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ The 2-clause BSD can be just converted into GPL, but that's rude and
pointless, so don't do it - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The swapaccount kernel parameter without any values has been removed by
commit a2c8990aed ("memsw: remove noswapaccount kernel parameter") but
it seems that we didn't get rid of all the left overs.
Make sure that menuconfig help text and kernel-parameters.txt are clear
about value for the paramter and remove the stalled comment which is not
very much useful on its own.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Gergely Risko <gergely@risko.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the issue with improper counting number of flying bio requests for
BIO_EOPNOTSUPP error detection case.
The sb_nbio must be incremented exactly the same number of times as
complete() function was called (or will be called) because
nilfs_segbuf_wait() will call wail_for_completion() for the number of
times set to sb_nbio:
do {
wait_for_completion(&segbuf->sb_bio_event);
} while (--segbuf->sb_nbio > 0);
Two functions complete() and wait_for_completion() must be called the
same number of times for the same sb_bio_event. Otherwise,
wait_for_completion() will hang or leak.
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove double call of bio_put() in nilfs_end_bio_write() for the case of
BIO_EOPNOTSUPP error detection. The issue was found by Dan Carpenter
and he suggests first version of the fix too.
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Being a low-level component, various drivers (e.g. olpc-battery) assume
that it is ok to communicate with the OLPC Embedded Controller during
probe. Therefore the OLPC EC driver must be initialised before other
drivers try to use it. This was the case until it was recently moved
out of arch/x86 and restructured around commits ac2504151f ("Platform:
OLPC: turn EC driver into a platform_driver") and 85f90cf6ca ("x86:
OLPC: switch over to using new EC driver on x86").
Use arch_initcall so that olpc-ec is readied earlier, matching the
previous behaviour.
Fixes a regression introduced in Linux-3.6 where various drivers such as
olpc-battery and olpc-xo1-sci failed to load due to an inability to
communicate with the EC. The user-visible effect was a lack of battery
monitoring, missing ebook/lid switch input devices, etc.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: Andres Salomon <dilinger@queued.net>
Cc: Paul Fox <pgf@laptop.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Just one patch that soaked for quite a bit to fix a resume issue,
resulting in gpu hangs (or worse) due to tlb containing garbage.
* tag 'drm-intel-fixes-2013-08-23' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Invalidate TLBs for the rings after a reset
IP sends device configuration (see inet_fill_link_af) as an array
in the netlink information, but the indices in that array are not
exposed to userspace through any current santized header file.
It was available back in 2.6.32 (in /usr/include/linux/sysctl.h)
but was broken by:
commit 02291680ff
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Sun Feb 14 03:25:51 2010 +0000
net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers
Eric was solving the sysctl problem but then the indices were re-exposed
by a later addition of devconf support for IPV4
commit 9f0f7272ac
Author: Thomas Graf <tgraf@infradead.org>
Date: Tue Nov 16 04:32:48 2010 +0000
ipv4: AF_INET link address family
Putting them in /usr/include/linux/ip.h seemed the logical match
for the DEVCONF_ definitions for IPV6 in /usr/include/linux/ip6.h
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
rfc 4861 says the Redirected Header option is optional, so
the kernel should not drop the Redirect Message that has no
Redirected Header option. In this patch, the function
ip6_redirect_no_header() is introduced to deal with that
condition.
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
commit fba875591 ("disable TX in be_close()") disabled TX in be_close()
to protect be_xmit() from touching freed up queues in the AER recovery
flow. But, TX must be disabled *before* cleaning up TX completions in
the close() path, not after. This allows be_tx_compl_clean() to free up
all TX-req skbs that were notified to the HW.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Revert commit c04c697 (ACPI / video: Always call acpi_video_init_brightness()
on init), because it breaks eDP backlight at 1920x1080 on Acer Aspire S3
for Trevor Bortins.
References: https://bugs.freedesktop.org/show_bug.cgi?id=68355
Reported-and-bisected-by: Trevor Bortins <enabfluw@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This reverts commit 58ad436fcf.
It turns out that the change introduced a potential deadlock
by causing a locking dependency with netlink's cb_mutex. I
can't seem to find a way to resolve this without doing major
changes to the locking, so revert this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 platform driver fixes from Matthew Garrett:
"Three trivial fixes - the first reverts a patch that's broken some
other devices (again - I'm trying to figure out a clean way to
implement this), the other two fix minor issues in the sony-laptop
driver"
* 'linux-next' of git://cavan.codon.org.uk/platform-drivers-x86:
Revert "hp-wmi: Enable hotkeys on some systems"
sony-laptop: Fix reporting of gfx_switch_status
sony-laptop: return a negative error code in sonypi_compat_init()
A handful of fixes for 3.11 are still trickling in. These are:
- A couple of fixes for older OMAP platforms
- Another few fixes for at91 (lateish due to European summer vacations)
- A late-found problem with USB on Tegra, fix is to keep VBUS regulator
on at all times
- One fix for Exynos 5440 dealing with CPU detection
- One MAINTAINERS update
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=NVob
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A handful of fixes for 3.11 are still trickling in. These are:
- A couple of fixes for older OMAP platforms
- Another few fixes for at91 (lateish due to European summer
vacations)
- A late-found problem with USB on Tegra, fix is to keep VBUS
regulator on at all times
- One fix for Exynos 5440 dealing with CPU detection
- One MAINTAINERS update"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: tegra: always enable USB VBUS regulators
ARM: davinci: nand: specify ecc strength
ARM: OMAP: rx51: change musb mode to OTG
ARM: OMAP2: fix musb usage for n8x0
MAINTAINERS: Update email address for Benoit Cousson
ARM: at91/DT: fix at91sam9n12ek memory node
ARM: at91: add missing uart clocks DT entries
ARM: SAMSUNG: fix to support for missing cpu specific map_io
ARM: at91/DT: at91sam9x5ek: fix USB host property to enable port C
for arches like PPC that use memblock_alloc. This appears to have been
an issue for some time, but is a somewhat limited usecase of OF_DYNAMIC.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJSFWZgAAoJEMhvYp4jgsXipiIH/3mswl+2WQT+d7+d5cjqOD8P
xIY4jOZlmkpKcT8fc3eZFkXA/vbcDGU/+PkMcYrP8VqXC3DuAqbTuNr/tet9Vnio
XuMAE4AeXxSK4RL+L+u+6sEuhXMkrMiZlk0vBLbDo6MVOKEiOoCzp8CH76q8OvdY
TF6Nyn3M8MCdLW33Una8UcZuUNd53Im+Ycie1AmfgL/dAVsbB9kYa5q8gO6YeFtJ
Hq6RBXN3Rx2HH5rwzOFVk95MGvxrIthqU5RmmEcvJ/Dz4cZCcqdFYxZ4EXxHvFN2
LEM89C8Qivoe2ONKDY/BfENLrNkokeFrG4w0mFjGGa5xr8WEj11AJgEuFSSGjdI=
=vkWu
-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-3.11' of git://sources.calxeda.com/kernel/linux
Pull device tree fix from Rob Herring:
"For DT unflattening, add missing memory initialization.
This is needed for arches like PPC that use memblock_alloc. This
appears to have been an issue for some time, but is a somewhat limited
usecase of OF_DYNAMIC"
* tag 'devicetree-fixes-for-3.11' of git://sources.calxeda.com/kernel/linux:
of: fdt: fix memory initialization for expanded DT
This is the updated version of df54d6fa54 ("x86 get_unmapped_area():
use proper mmap base for bottom-up direction") that only randomizes the
mmap base address once.
Signed-off-by: Radu Caragea <sinaelgl@gmail.com>
Reported-and-tested-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit df54d6fa54.
The commit isn't necessarily wrong, but because it recalculates the
random mmap_base every time, it seems to confuse user memory allocators
that expect contiguous mmap allocations even when the mmap address isn't
specified.
In particular, the MATLAB Java runtime seems to be unhappy. See
https://bugzilla.kernel.org/show_bug.cgi?id=60774
So we'll want to apply the random offset only once, and Radu has a patch
for that. Revert this older commit in order to apply the other one.
Reported-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Radu Caragea <sinaelgl@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
By popular demand, this patch brings back a couple of sysfs attributes
removed by commit 663e0890e3
"[SCSI] zfcp: remove access control tables interface".
The content has been irrelevant for years, but the files must be
there forever for whatever user space tools that may rely on them.
Since these files always return a constant value, a new stripped
down show-macro was required. Otherwise build warnings would have
been introduced.
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
BUG: sleeping function called from invalid context at kernel/workqueue.c:2752
in_atomic(): 1, irqs_disabled(): 1, pid: 360, name: zfcperp0.0.1700
CPU: 1 Not tainted 3.9.3+ #69
Process zfcperp0.0.1700 (pid: 360, task: 0000000075b7e080, ksp: 000000007476bc30)
<snip>
Call Trace:
([<00000000001165de>] show_trace+0x106/0x154)
[<00000000001166a0>] show_stack+0x74/0xf4
[<00000000006ff646>] dump_stack+0xc6/0xd4
[<000000000017f3a0>] __might_sleep+0x128/0x148
[<000000000015ece8>] flush_work+0x54/0x1f8
[<00000000001630de>] __cancel_work_timer+0xc6/0x128
[<00000000005067ac>] scsi_device_dev_release_usercontext+0x164/0x23c
[<0000000000161816>] execute_in_process_context+0x96/0xa8
[<00000000004d33d8>] device_release+0x60/0xc0
[<000000000048af48>] kobject_release+0xa8/0x1c4
[<00000000004f4bf2>] __scsi_iterate_devices+0xfa/0x130
[<000003ff801b307a>] zfcp_erp_strategy+0x4da/0x1014 [zfcp]
[<000003ff801b3caa>] zfcp_erp_thread+0xf6/0x2b0 [zfcp]
[<000000000016b75a>] kthread+0xf2/0xfc
[<000000000070c9de>] kernel_thread_starter+0x6/0xc
[<000000000070c9d8>] kernel_thread_starter+0x0/0xc
Apparently, the ref_count for some scsi_device drops down to zero,
triggering device removal through execute_in_process_context(), while
the lldd error recovery thread iterates through a scsi device list.
Unfortunately, execute_in_process_context() decides to immediately
execute that device removal function, instead of scheduling asynchronous
execution, since it detects process context and thinks it is safe to do
so. But almost all calls to shost_for_each_device() in our lldd are
inside spin_lock_irq, even in thread context. Obviously, schedule()
inside spin_lock_irq sections is a bad idea.
Change the lldd to use the proper iterator function,
__shost_for_each_device(), in combination with required locking.
Occurences that need to be changed include all calls in zfcp_erp.c,
since those might be executed in zfcp error recovery thread context
with a lock held.
Other occurences of shost_for_each_device() in zfcp_fsf.c do not
need to be changed (no process context, no surrounding locking).
The problem was introduced in Linux 2.6.37 by commit
b62a8d9b45
"[SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit".
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.37+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This patch adds wait_event_interruptible_lock_irq_timeout(), which is a
straight-forward descendant of wait_event_interruptible_timeout() and
wait_event_interruptible_lock_irq().
The zfcp driver used to call wait_event_interruptible_timeout()
in combination with some intricate and error-prone locking. Using
wait_event_interruptible_lock_irq_timeout() as a replacement
nicely cleans up that locking.
This rework removes a situation that resulted in a locking imbalance
in zfcp_qdio_sbal_get():
BUG: workqueue leaked lock or atomic: events/1/0xffffff00/10
last function: zfcp_fc_wka_port_offline+0x0/0xa0 [zfcp]
It was introduced by commit c2af7545aa
"[SCSI] zfcp: Do not wait for SBALs on stopped queue", which had a new
code path related to ZFCP_STATUS_ADAPTER_QDIOUP that took an early exit
without a required lock being held. The problem occured when a
special, non-SCSI I/O request was being submitted in process context,
when the adapter's queues had been torn down. In this case the bug
surfaced when the Fibre Channel port connection for a well-known address
was closed during a concurrent adapter shut-down procedure, which is a
rare constellation.
This patch also fixes these warnings from the sparse tool (make C=1):
drivers/s390/scsi/zfcp_qdio.c:224:12: warning: context imbalance in
'zfcp_qdio_sbal_check' - wrong count at exit
drivers/s390/scsi/zfcp_qdio.c:244:5: warning: context imbalance in
'zfcp_qdio_sbal_get' - unexpected unlock
Last but not least, we get rid of that crappy lock-unlock-lock
sequence at the beginning of the critical section.
It is okay to call zfcp_erp_adapter_reopen() with req_q_lock held.
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org #2.6.35+
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
David Sterba