| Age | Commit message (Collapse) | Author |
|---|
|
A string written by the user may not be zero terminated.
sscanf may read memory beyond the buffer if no zero byte
is found.
For testing build with CONFIG_USB_CHIPIDEA=y, CONFIG_USB_CHIPIDEA_DEBUG=y.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix 'perf probe -a' segfault if passed with '' (Wang Nan)
- Fix report -T/--threads option (Namhyung Kim)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
|
Pull IPMI fixes from Corey Minyard:
"Lots of minor IPMI fixes, especially ones that have have come up since
the SSIF driver has been in the main kernel for a while"
* tag 'for-linus-4.1-1' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Fix multi-part message handling
ipmi: Add alert handling to SSIF
ipmi: Fix a problem that messages are not issued in run_to_completion mode
ipmi: Report an error if ACPI _IFT doesn't exist
ipmi: Remove unused including <linux/version.h>
ipmi: Don't report err in the SI driver for SSIF devices
ipmi: Remove incorrect use of seq_has_overflowed
ipmi:ssif: Ignore spaces when comparing I2C adapter names
ipmi_ssif: Fix the logic on user-supplied addresses
|
|
Merge misc fixes from Andrew Morton:
"16 patches
This includes a new rtc driver for the Abracon AB x80x and isn't very
appropriate for -rc2. It was still being fiddled with a bit during
the merge window and I fell asleep during -rc1"
[ So I took the new driver, it seems small and won't regress anything.
I'm a softy. - Linus ]
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
rtc: armada38x: fix concurrency access in armada38x_rtc_set_time
ocfs2: dlm: fix race between purge and get lock resource
nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
util_macros.h: have array pointer point to array of constants
configfs: init configfs module earlier at boot time
mm/hwpoison-inject: check PageLRU of hpage
mm/hwpoison-inject: fix refcounting in no-injection case
mm: soft-offline: fix num_poisoned_pages counting on concurrent events
rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc
Documentation: bindings: add abracon,abx80x
kasan: show gcc version requirements in Kconfig and Documentation
mm/memory-failure: call shake_page() when error hits thp tail page
lib: delete lib/find_last_bit.c
MAINTAINERS: add co-maintainer for LED subsystem
zram: add Designated Reviewer for zram in MAINTAINERS
revert "zram: move compact_store() to sysfs functions area"
|
|
git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver fixes from Darren Hart:
"This includes a trivial warning and adding a Lenovo laptop to an
existing quirk.
I've held off on things like the latter in the past, but I didn't feel
it was risky enough to push out to 4.2.
- thinkpad_acpi:
Fix warning for static not at beginning
- ideapad_laptop:
Add Lenovo G40-30 to devices without radio switch"
* tag 'platform-drivers-x86-v4.1-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
thinkpad_acpi: Fix warning for static not at beginning
ideapad_laptop: Add Lenovo G40-30 to devices without radio switch
|
|
Lots of little fixes for multi-part messages:
The values was not being re-initialized, if something went wrong
handling a multi-part message and it got left in a bad state, it
might be an issue.
The commands were not correct when issuing multi-part reads, the
code was not passing in the proper value for commands. Also clean
up some minor formatting issues.
Get the block number from the right location, limit the maximum send
message size to 63 bytes and explain why, and fix some minor sylistic
issues.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
The SSIF interface can optionally have an SMBus alert come in when
data is ready. Unfortunately, the IPMI spec gives wiggle room to
the implementer to allow them to always have the alert enabled,
even if the driver doesn't enable it. So implement alerts.
If you don't in this situation, the SMBus alert handling will
constantly complain.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
start_next_msg() issues a message placed in smi_info->waiting_msg
if it is non-NULL. However, sender() sets a message to
smi_info->curr_msg and NULL to smi_info->waiting_msg in the context
of run_to_completion mode. As the result, it leads an infinite
loop by waiting the completion of unissued message when leaving
dying message after kernel panic.
sender() should set the message to smi_info->waiting_msg not
curr_msg.
Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
When probing an ACPI table, report a specific error, instead of just
returning an error, if _IFT doesn't exist.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
Remove including <linux/version.h> that don't need it.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
While setting the time, the RTC TIME register should not be accessed.
However due to hardware constraints, setting the RTC time involves
sleeping during 100ms. This sleep was done outside the critical section
protected by the spinlock, so it was possible to read the RTC TIME
register and get an incorrect value. This patch introduces a mutex for
protecting the RTC TIME access, unlike the spinlock it is allowed to
sleep in a critical section protected by a mutex.
The RTC STATUS register can still be used from the interrupt handler but
it has no effect on setting the time.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <stable@vger.kernel.org> [4.0]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
There is a race window in dlm_get_lock_resource(), which may return a
lock resource which has been purged. This will cause the process to
hang forever in dlmlock() as the ast msg can't be handled due to its
lock resource not existing.
dlm_get_lock_resource {
...
spin_lock(&dlm->spinlock);
tmpres = __dlm_lookup_lockres_full(dlm, lockid, namelen, hash);
if (tmpres) {
spin_unlock(&dlm->spinlock);
>>>>>>>> race window, dlm_run_purge_list() may run and purge
the lock resource
spin_lock(&tmpres->spinlock);
...
spin_unlock(&tmpres->spinlock);
}
}
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The range check for b-tree level parameter in nilfs_btree_root_broken()
is wrong; it accepts the case of "level == NILFS_BTREE_LEVEL_MAX" even
though the level is limited to values in the range of 0 to
(NILFS_BTREE_LEVEL_MAX - 1).
Since the level parameter is read from storage device and used to index
nilfs_btree_path array whose element count is NILFS_BTREE_LEVEL_MAX, it
can cause memory overrun during btree operations if the boundary value
is set to the level parameter on device.
This fixes the broken sanity check and adds a comment to clarify that
the upper bound NILFS_BTREE_LEVEL_MAX is exclusive.
Signed-off-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>
|
|
Using the new find_closest() macro can result in the following sparse
warnings.
drivers/hwmon/lm85.c:194:16: warning:
incorrect type in initializer (different modifiers)
drivers/hwmon/lm85.c:194:16: expected int *__fc_a
drivers/hwmon/lm85.c:194:16: got int static const [toplevel] *<noident>
drivers/hwmon/lm85.c:210:16: warning:
incorrect type in initializer (different modifiers)
drivers/hwmon/lm85.c:210:16: expected int *__fc_a
drivers/hwmon/lm85.c:210:16: got int const *map
This is because the array passed to find_closest() will typically be
declared as array of constants, but the macro declares a non-constant
pointer to it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
We need this earlier in the boot process to allow various subsystems to
use configfs (e.g Industrial IIO).
Also, debugfs is at core_initcall level and configfs should be on the same
level from infrastructure point of view.
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Suggested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Hwpoison injector checks PageLRU of the raw target page to find out
whether the page is an appropriate target, but current code now filters
out thp tail pages, which prevents us from testing for such cases via this
interface. So let's check hpage instead of p.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Dean Nelson <dnelson@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Hwpoison injection via debugfs:hwpoison/corrupt-pfn takes a refcount of
the target page. But current code doesn't release it if the target page
is not supposed to be injected, which results in memory leak. This patch
simply adds the refcount releasing code.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Dean Nelson <dnelson@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
If multiple soft offline events hit one free page/hugepage concurrently,
soft_offline_page() can handle the free page/hugepage multiple times,
which makes num_poisoned_pages counter increased more than once. This
patch fixes this wrong counting by checking TestSetPageHWPoison for normal
papes and by checking the return value of dequeue_hwpoisoned_huge_page()
for hugepages.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Dean Nelson <dnelson@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: <stable@vger.kernel.org> [3.14+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC
chips. It supports in particular, the supersets AB0805 and AB1805.
It allows reading and writing the time, and enables the supercapacitor/
battery charger.
[arnd@arndb.de: abx805 depends on i2c]
[alexandre.belloni@free-electrons.com: renam buffer from date to buf in abx80x_rtc_read_time()]
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Document the bindings for abracon,abx80x and related compatibles.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Philippe De Muyter <phdm@macqel.be>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The documentation shows a need for gcc > 4.9.2, but it's really >=. The
Kconfig entries don't show require versions so add them. Correct a
latter/later typo too. Also mention that gcc 5 required to catch out of
bounds accesses to global and stack variables.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Currently memory_failure() calls shake_page() to sweep pages out from
pcplists only when the victim page is 4kB LRU page or thp head page.
But we should do this for a thp tail page too.
Consider that a memory error hits a thp tail page whose head page is on
a pcplist when memory_failure() runs. Then, the current kernel skips
shake_pages() part, so hwpoison_user_mappings() returns without calling
split_huge_page() nor try_to_unmap() because PageLRU of the thp head is
still cleared due to the skip of shake_page().
As a result, me_huge_page() runs for the thp, which is broken behavior.
One effect is a leak of the thp. And another is to fail to isolate the
memory error, so later access to the error address causes another MCE,
which kills the processes which used the thp.
This patch fixes this problem by calling shake_page() for thp tail case.
Fixes: 385de35722c9 ("thp: allow a hwpoisoned head page to be put back to LRU")
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Dean Nelson <dnelson@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Cc: <stable@vger.kernel.org> [3.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
The file lib/find_last_bit.c was no longer used and supposed to be
deleted by commit 8f6f19dd51 ("lib: move find_last_bit to
lib/find_next_bit.c") but that delete didn't happen. This gets rid of
it.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Add myself (Jacek Anaszewski) as a co-maintainer for the LED subsystem.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Sergey Senozhatsky has contributed/reviewed to zram for a long time. He
is really helpful for maintaining zram so I want for him to continue
helping me as Designated Reviewer unless he hates it.
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Revert commit c72c6160d967ed26a0b136dbab337f821d233509
It was intended to be a cosmetic change that w/o any functional change
and was part of a bigger change:
http://lkml.iu.edu/hypermail/linux/kernel/1503.1/01818.html
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
I forgot to update tcp_westwood when changing get_info() behavior,
this patch should fix this.
Fixes: 64f40ff5bbdb ("tcp: prepare CC get_info() access from getsockopt()")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
iwlwifi:
* fix firmware API for -13.ucode
* fix RSSI handling that avoid bad roaming decision
* fix firmware debug
* fix MFUART operation
* fix ASSERT while restart the hardware (because of another ASSERT e.g)
ath9k:
* fix per-packet tx power configuration
rtlwifi:
* rtl8192cu: Fix kernel deadlock
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Move to include/uapi/linux/mpls.h to be externally visibile.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Or Gerlitz says:
====================
mlx4 fixes for 4.1-rc2
Eran's fix is for a small off-by-one introduces on 4.1-rc1.
Yisahi fixes an issue with comes into play only on VMs with
many (> 256) vCPUs.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The Firmware uses dynamic EQs allocation based on number of VFs and
max EQs that can be allocated. As a result, VF can have EQ numbers
that are larger than 256.
According to the firmware spec, the max value is limited to be 1024
(10 bits), adapt the relevant code accordingly. This bug was impossible
to hit prior to commit 7ae0e400cd93 ("net/mlx4_core: Flexible (asymmetric)
allocation of EQs and MSI-X vectors for PF/VFs") which actually enables
large number of EQs for VFs.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This caused the en_stats_adder helper to accumulate a field which is
not related to the counter, fix that.
Fixes: a3333b35da16 ('net/mlx4_en: Moderate ethtool callback to show [..]')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
With commit b56fc3c53654 ("hv_netvsc: Fix a bug in netvsc_start_xmit()"),
skb variable is no longer used in netvsc_send. Remove variable and dead
code that depended on it.
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Fix the following warning:
warning: "static" is not at beginning of declaration
void static hotkey_mask_warn_incomplete_mask(void)
^
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Cc: Darren Hart <dvhart@infradead.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
|
|
Really ignore them by returning -ENODEV from the probe, but not
doing anything.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
commit d6c5dc18d863 ("ipmi: Remove uses of return value of seq_printf")
incorrectly changed the return value of various proc_show functions
to use seq_has_overflowed().
These functions should return 0 on completion rather than 1/true
on overflow. 1 is the same as #define SEQ_SKIP which would cause
the output to not be emitted (skipped) instead.
This is a logical defect only as the length of these outputs are
all smaller than the initial allocation done by the seq filesystem.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
Some of the adapters have spaces in their names, but that's really
hard to pass in as a module or kernel parameters. So ignore the
spaces.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
Returning zero is success.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
|
|
Commit 75182b1632 ("x86/asm/entry: Switch all C consumers of
kernel_stack to this_cpu_sp0()") changed current_thread_info
to use this_cpu_sp0, and indirectly made it rely on init_tss
which was exported with EXPORT_PER_CPU_SYMBOL_GPL.
As a result some macros and inline functions such as set/get_fs,
test_thread_flag and variants have been made unusable for
external modules.
Make cpu_tss exported with EXPORT_PER_CPU_SYMBOL so that these
functions are accessible again, as they were previously.
Signed-off-by: Marc Dionne <marc.dionne@your-file-system.com>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/1430763404-21221-1-git-send-email-marc.dionne@your-file-system.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
|
Commit 61f01dd941ba ("x86_64, asm: Work around AMD SYSRET SS descriptor
attribute issue") makes AMD processors set SS to __KERNEL_DS in
__switch_to() to deal with cases when SS is NULL.
This breaks Xen PV guests who do not want to load SS with__KERNEL_DS.
Since the problem that the commit is trying to address would have to be
fixed in the hypervisor (if it in fact exists under Xen) there is no
reason to set X86_BUG_SYSRET_SS_ATTRS flag for PV VPCUs here.
This can be easily achieved by adding x86_hyper_xen_hvm.set_cpu_features
op which will clear this flag. (And since this structure is no longer
HVM-specific we should do some renaming).
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
|
|
__startup_pirq()
.. because bind_evtchn_to_cpu(evtchn, cpu) will map evtchn to
'info' and pass 'info' down to xen_evtchn_port_bind_to_cpu().
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Tested-by: Annie Li <annie.li@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
|
|
After a resume the hypervisor/tools may change console event
channel number. We should re-query it.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
|
|
After a resume the hypervisor/tools may change xenbus event
channel number. We should re-query it.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
|
|
When a guest is resumed, the hypervisor may change event channel
assignments. If this happens and the guest uses 2-level events it
is possible for the interrupt to be claimed by wrong VCPU since
cpu_evtchn_mask bits may be stale. This can happen even though
evtchn_2l_bind_to_cpu() attempts to clear old bits: irq_info that
is passed in is not necessarily the original one (from pre-migration
times) but instead is freshly allocated during resume and so any
information about which CPU the channel was bound to is lost.
Thus we should clear the mask during resume.
We also need to make sure that bits for xenstore and console channels
are set when these two subsystems are resumed. While rebind_evtchn_irq()
(which is invoked for both of them on a resume) calls irq_set_affinity(),
the latter will in fact postpone setting affinity until handling the
interrupt. But because cpu_evtchn_mask will have bits for these two
cleared we won't be able to take the interrupt.
With that in mind, we need to bind those two channels explicitly in
rebind_evtchn_irq(). We will keep irq_set_affinity() so that we have a
pass through generic irq affinity code later, in case something needs
to be updated there as well.
(Also replace cpumask_of(0) with cpumask_of(info->cpu) in
rebind_evtchn_irq(): it should be set to zero in preceding
xen_irq_info_evtchn_setup().)
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reported-by: Annie Li <annie.li@oracle.com>
Cc: <stable@vger.kernel.org> # 3.14+
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
|
|
Since Roland stepped down, the community asked me to take his place, and
the nomination was followed by sufficient votes and no dissensions that
we can move forward with the change.
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
Most headers for InfiniBand/RDMA are located under
include/rdma/ and include/uapi/rdma.
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
See also patch "IPoIB/cm: Add connected mode support for devices
without SRQs" (commit ID 68e995a29572). Detected by smatch.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Pradeep Satyanarayana <pradeeps@linux.vnet.ibm.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
Remove these log messages in favor of per-endpoint counters as well as
device-global counters that can be inspected via debugfs.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
Addresses the following kernel logs seen during boot of sparc systems:
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Kernel unaligned access at TPC[103bce50] cm_find_listen+0x34/0xf8 [ib_cm]
Signed-off-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
|
Signed-off-by: Honggang Li <honli@redhat.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
|
