After commit b6d86d3d (Fix DIV_ROUND_CLOSEST to support negative dividends),
the following warning is seen if the kernel is compiled with W=1 (-Wextra):
warning: comparison of unsigned expression >= 0 is always true
The warning is due to the test '((typeof(x))-1) >= 0', which is used to detect
if the variable type is unsigned. Research on the web suggests that the warning
disappears if '>' instead of '>=' is used for the comparison.
Tests after changing the macro along that line show that the warning is gone,
and that the result is still correct:
i=-4: DIV_ROUND_CLOSEST(i, 2)=-2
i=-3: DIV_ROUND_CLOSEST(i, 2)=-2
i=-2: DIV_ROUND_CLOSEST(i, 2)=-1
i=-1: DIV_ROUND_CLOSEST(i, 2)=-1
i=0: DIV_ROUND_CLOSEST(i, 2)=0
i=1: DIV_ROUND_CLOSEST(i, 2)=1
i=2: DIV_ROUND_CLOSEST(i, 2)=1
i=3: DIV_ROUND_CLOSEST(i, 2)=2
i=4: DIV_ROUND_CLOSEST(i, 2)=2
Code size is the same as before.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
It isn't always necessary to update the metadata when spares are
removed as the presence-or-not of a spare isn't really important to
the integrity of an array.
Also activating a spare doesn't always require updating the metadata
as the update on 'recovery-completed' is usually sufficient.
However the introduction of 'replacement' devices have made these
transitions sometimes more important. For example the 'Replacement'
flag isn't cleared until the original device is removed, so we need
to ensure a metadata update after that 'spare' is removed.
So set MD_CHANGE_DEVS whenever a spare is activated or removed, to
complement the current situation where it is set when a spare is added
or a device is failed (or a number of other less common situations).
This is suitable for -stable as out-of-data metadata could lead
to data corruption.
This is only relevant for 3.3 and later 9when 'replacement' as
introduced.
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
When a replacement device becomes active, we mark the device that it
replaces as 'faulty' so that it can subsequently get removed.
However 'calc_degraded' only pays attention to the primary device, not
the replacement, so the array appears to become degraded, which is
wrong.
So teach 'calc_degraded' to consider any replacement if a primary
device is faulty.
This is suitable for -stable as an incorrect 'degraded' value can
confuse md and could lead to data corruption.
This is only relevant for 3.3 and later.
Cc: stable@vger.kernel.org
Reported-by: Robin Hill <robin@robinhill.me.uk>
Reported-by: John Drescher <drescherjm@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This reverts commit 895e3c5c58.
While this patch seemed like a good idea and did help some workloads,
it hurts other workloads.
Large sequential O_DIRECT writes were faster,
Small random O_DIRECT writes were slower.
Other changes (batching RAID5 writes) have improved the sequential
writes using a different mechanism, so the net result of this patch
is definitely negative. So revert it.
Reported-by: Shaohua Li <shli@kernel.org>
Tested-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
When the driver can't get the HW ready, we would release
the interrupt twice which made the kernel complain loudly.
Cc: stable@vger.kernel.org
Reported-by: Brian Cockrell <brian.cockrell@intel.com>
Tested-by: Brian Cockrell <brian.cockrell@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When call_crda() is called we kick off a witch hunt search
for the same regulatory domain on our internal regulatory
database and that work gets kicked off on a workqueue, this
is done while the cfg80211_mutex is held. If that workqueue
kicks off it will first lock reg_regdb_search_mutex and
later cfg80211_mutex but to ensure two CPUs will not contend
against cfg80211_mutex the right thing to do is to have the
reg_regdb_search() wait until the cfg80211_mutex is let go.
The lockdep report is pasted below.
cfg80211: Calling CRDA to update world regulatory domain
======================================================
[ INFO: possible circular locking dependency detected ]
3.3.8 #3 Tainted: G O
-------------------------------------------------------
kworker/0:1/235 is trying to acquire lock:
(cfg80211_mutex){+.+...}, at: [<816468a4>] set_regdom+0x78c/0x808 [cfg80211]
but task is already holding lock:
(reg_regdb_search_mutex){+.+...}, at: [<81646828>] set_regdom+0x710/0x808 [cfg80211]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (reg_regdb_search_mutex){+.+...}:
[<800a8384>] lock_acquire+0x60/0x88
[<802950a8>] mutex_lock_nested+0x54/0x31c
[<81645778>] is_world_regdom+0x9f8/0xc74 [cfg80211]
-> #1 (reg_mutex#2){+.+...}:
[<800a8384>] lock_acquire+0x60/0x88
[<802950a8>] mutex_lock_nested+0x54/0x31c
[<8164539c>] is_world_regdom+0x61c/0xc74 [cfg80211]
-> #0 (cfg80211_mutex){+.+...}:
[<800a77b8>] __lock_acquire+0x10d4/0x17bc
[<800a8384>] lock_acquire+0x60/0x88
[<802950a8>] mutex_lock_nested+0x54/0x31c
[<816468a4>] set_regdom+0x78c/0x808 [cfg80211]
other info that might help us debug this:
Chain exists of:
cfg80211_mutex --> reg_mutex#2 --> reg_regdb_search_mutex
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(reg_regdb_search_mutex);
lock(reg_mutex#2);
lock(reg_regdb_search_mutex);
lock(cfg80211_mutex);
*** DEADLOCK ***
3 locks held by kworker/0:1/235:
#0: (events){.+.+..}, at: [<80089a00>] process_one_work+0x230/0x460
#1: (reg_regdb_work){+.+...}, at: [<80089a00>] process_one_work+0x230/0x460
#2: (reg_regdb_search_mutex){+.+...}, at: [<81646828>] set_regdom+0x710/0x808 [cfg80211]
stack backtrace:
Call Trace:
[<80290fd4>] dump_stack+0x8/0x34
[<80291bc4>] print_circular_bug+0x2ac/0x2d8
[<800a77b8>] __lock_acquire+0x10d4/0x17bc
[<800a8384>] lock_acquire+0x60/0x88
[<802950a8>] mutex_lock_nested+0x54/0x31c
[<816468a4>] set_regdom+0x78c/0x808 [cfg80211]
Reported-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
For example, when a usb reset is received (I could reproduce it
running something very similar to this[1] in a loop) it could be
that the device is unregistered while the power_off delayed work
is still scheduled to run.
Backtrace:
WARNING: at lib/debugobjects.c:261 debug_print_object+0x7c/0x8d()
Hardware name: To Be Filled By O.E.M.
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x26
Modules linked in: nouveau mxm_wmi btusb wmi bluetooth ttm coretemp drm_kms_helper
Pid: 2114, comm: usb-reset Not tainted 3.5.0bt-next #2
Call Trace:
[<ffffffff8124cc00>] ? free_obj_work+0x57/0x91
[<ffffffff81058f88>] warn_slowpath_common+0x7e/0x97
[<ffffffff81059035>] warn_slowpath_fmt+0x41/0x43
[<ffffffff8124ccb6>] debug_print_object+0x7c/0x8d
[<ffffffff8106e3ec>] ? __queue_work+0x259/0x259
[<ffffffff8124d63e>] ? debug_check_no_obj_freed+0x6f/0x1b5
[<ffffffff8124d667>] debug_check_no_obj_freed+0x98/0x1b5
[<ffffffffa00aa031>] ? bt_host_release+0x10/0x1e [bluetooth]
[<ffffffff810fc035>] kfree+0x90/0xe6
[<ffffffffa00aa031>] bt_host_release+0x10/0x1e [bluetooth]
[<ffffffff812ec2f9>] device_release+0x4a/0x7e
[<ffffffff8123ef57>] kobject_release+0x11d/0x154
[<ffffffff8123ed98>] kobject_put+0x4a/0x4f
[<ffffffff812ec0d9>] put_device+0x12/0x14
[<ffffffffa009472b>] hci_free_dev+0x22/0x26 [bluetooth]
[<ffffffffa0280dd0>] btusb_disconnect+0x96/0x9f [btusb]
[<ffffffff813581b4>] usb_unbind_interface+0x57/0x106
[<ffffffff812ef988>] __device_release_driver+0x83/0xd6
[<ffffffff812ef9fb>] device_release_driver+0x20/0x2d
[<ffffffff813582a7>] usb_driver_release_interface+0x44/0x7b
[<ffffffff81358795>] usb_forced_unbind_intf+0x45/0x4e
[<ffffffff8134f959>] usb_reset_device+0xa6/0x12e
[<ffffffff8135df86>] usbdev_do_ioctl+0x319/0xe20
[<ffffffff81203244>] ? avc_has_perm_flags+0xc9/0x12e
[<ffffffff812031a0>] ? avc_has_perm_flags+0x25/0x12e
[<ffffffff81050101>] ? do_page_fault+0x31e/0x3a1
[<ffffffff8135eaa6>] usbdev_ioctl+0x9/0xd
[<ffffffff811126b1>] vfs_ioctl+0x21/0x34
[<ffffffff81112f7b>] do_vfs_ioctl+0x408/0x44b
[<ffffffff81208d45>] ? file_has_perm+0x76/0x81
[<ffffffff8111300f>] sys_ioctl+0x51/0x76
[<ffffffff8158db22>] system_call_fastpath+0x16/0x1b
[1] http://cpansearch.perl.org/src/DPAVLIN/Biblio-RFID-0.03/examples/usbreset.c
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
When releasing L2CAP socket which is in BT_CONFIG state l2cap_chan_close
invokes l2cap_send_disconn_req which cancel delayed works which are only
set in BT_CONNECTED state with l2cap_ertm_init. Add state check before
cancelling those works.
...
[ 9668.574372] [21085] l2cap_sock_release: sock cd065200, sk f073e800
[ 9668.574399] [21085] l2cap_sock_shutdown: sock cd065200, sk f073e800
[ 9668.574411] [21085] l2cap_chan_close: chan f073ec00 state BT_CONFIG sk f073e800
[ 9668.574421] [21085] l2cap_send_disconn_req: chan f073ec00 conn ecc16600
[ 9668.574441] INFO: trying to register non-static key.
[ 9668.574443] the code is fine but needs lockdep annotation.
[ 9668.574446] turning off the locking correctness validator.
[ 9668.574450] Pid: 21085, comm: obex-client Tainted: G O 3.5.0+ #57
[ 9668.574452] Call Trace:
[ 9668.574463] [<c10a64b3>] __lock_acquire+0x12e3/0x1700
[ 9668.574468] [<c10a44fb>] ? trace_hardirqs_on+0xb/0x10
[ 9668.574476] [<c15e4f60>] ? printk+0x4d/0x4f
[ 9668.574479] [<c10a6e38>] lock_acquire+0x88/0x130
[ 9668.574487] [<c1059740>] ? try_to_del_timer_sync+0x60/0x60
[ 9668.574491] [<c1059790>] del_timer_sync+0x50/0xc0
[ 9668.574495] [<c1059740>] ? try_to_del_timer_sync+0x60/0x60
[ 9668.574515] [<f8aa1c23>] l2cap_send_disconn_req+0xe3/0x160 [bluetooth]
...
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
When new BT USB adapter is plugged in it's configured while still being powered
off (HCI_AUTO_OFF flag is set), thus Set LE will only set dev_flags but won't
write changes to controller. As a result it's not possible to start device
discovery session on LE controller as it uses interleaved discovery which
requires LE Supported Host flag in extended features.
This patch ensures HCI Write LE Host Supported is sent when Set Powered is
called to power on controller and clear HCI_AUTO_OFF flag.
Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Cc: stable@vger.kernel.org
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
When new BT USB adapter is plugged in it's configured while still being powered
off (HCI_AUTO_OFF flag is set), thus Set SSP will only set dev_flags but won't
write changes to controller. As a result remote devices won't use Secure Simple
Pairing with our device due to SSP Host Support flag disabled in extended
features and may also reject SSP attempt from our side (with possible fallback
to legacy pairing).
This patch ensures HCI Write Simple Pairing Mode is sent when Set Powered is
called to power on controller and clear HCI_AUTO_OFF flag.
Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Cc: stable@vger.kernel.org
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Cancel work of the xfs_sync_worker before teardown of the log in
xfs_unmountfs. This prevents occasional crashes on unmount like so:
PID: 21602 TASK: ee9df060 CPU: 0 COMMAND: "kworker/0:3"
#0 [c5377d28] crash_kexec at c0292c94
#1 [c5377d80] oops_end at c07090c2
#2 [c5377d98] no_context at c06f614e
#3 [c5377dbc] __bad_area_nosemaphore at c06f6281
#4 [c5377df4] bad_area_nosemaphore at c06f629b
#5 [c5377e00] do_page_fault at c070b0cb
#6 [c5377e7c] error_code (via page_fault) at c070892c
EAX: f300c6a8 EBX: f300c6a8 ECX: 000000c0 EDX: 000000c0 EBP: c5377ed0
DS: 007b ESI: 00000000 ES: 007b EDI: 00000001 GS: ffffad20
CS: 0060 EIP: c0481ad0 ERR: ffffffff EFLAGS: 00010246
#7 [c5377eb0] atomic64_read_cx8 at c0481ad0
#8 [c5377ebc] xlog_assign_tail_lsn_locked at f7cc7c6e [xfs]
#9 [c5377ed4] xfs_trans_ail_delete_bulk at f7ccd520 [xfs]
#10 [c5377f0c] xfs_buf_iodone at f7ccb602 [xfs]
#11 [c5377f24] xfs_buf_do_callbacks at f7cca524 [xfs]
#12 [c5377f30] xfs_buf_iodone_callbacks at f7cca5da [xfs]
#13 [c5377f4c] xfs_buf_iodone_work at f7c718d0 [xfs]
#14 [c5377f58] process_one_work at c024ee4c
#15 [c5377f98] worker_thread at c024f43d
#16 [c5377fbc] kthread at c025326b
#17 [c5377fe8] kernel_thread_helper at c070e834
PID: 26653 TASK: e79143b0 CPU: 3 COMMAND: "umount"
#0 [cde0fda0] __schedule at c0706595
#1 [cde0fe28] schedule at c0706b89
#2 [cde0fe30] schedule_timeout at c0705600
#3 [cde0fe94] __down_common at c0706098
#4 [cde0fec8] __down at c0706122
#5 [cde0fed0] down at c025936f
#6 [cde0fee0] xfs_buf_lock at f7c7131d [xfs]
#7 [cde0ff00] xfs_freesb at f7cc2236 [xfs]
#8 [cde0ff10] xfs_fs_put_super at f7c80f21 [xfs]
#9 [cde0ff1c] generic_shutdown_super at c0333d7a
#10 [cde0ff38] kill_block_super at c0333e0f
#11 [cde0ff48] deactivate_locked_super at c0334218
#12 [cde0ff58] deactivate_super at c033495d
#13 [cde0ff68] mntput_no_expire at c034bc13
#14 [cde0ff7c] sys_umount at c034cc69
#15 [cde0ffa0] sys_oldumount at c034ccd4
#16 [cde0ffb0] system_call at c0707e66
commit 11159a05 added this to xfs_log_unmount and needs to be cleaned up
at a later date.
Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
This function returns the wrong value, which causes the callers to get
the length of the resulting pathname wrong when it contains non-ASCII
characters.
This seems to fix https://bugzilla.samba.org/show_bug.cgi?id=6767
Cc: <stable@vger.kernel.org>
Reported-by: Baldvin Kovacs <baldvin.kovacs@gmail.com>
Reported-and-Tested-by: Nicolas Lefebvre <nico.lefebvre@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
On PCI/PCI-X HW, if packet size is less than ETH_ZLEN,
packets may get corrupted during padding by HW.
To WA this issue, pad all small packets manually.
Signed-off-by: Tushar Dave <tushar.n.dave@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
if xfrm_policy_get_afinfo returns 0, it has already released the read
lock, xfrm_policy_put_afinfo should not be called again.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephan Springl found that commit 1402d36601 "tcp: introduce
tcp_try_coalesce" introduced a regression for rlogin
It turns out problem comes from TCP urgent data handling and
a change in behavior in input path.
rlogin sends two one-byte packets with URG ptr set, and when next data
frame is coalesced, we lack sk_data_ready() calls to wakeup consumer.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Stephan Springl <springl-k@lar.bfw.de>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If orphan flags fails, we don't free the skb
on receive, which leaks the skb memory.
Return value was also wrong: netif_receive_skb
is supposed to return NET_RX_DROP, not ENOMEM.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a check if pdev->bus->self == NULL (root bus). When attaching
a netxen NIC to a VM it can be on the root bus and the guest would
crash in netxen_mask_aer_correctable() because of a NULL pointer
dereference if CONFIG_PCIEAER is present.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A heavy-load test on a MacBookPro6,1 is still showing a substantial
amount of read errors. Increasing the maximum wait time to 128 ms
resolves the issue.
Signed-off-by: Parag Warudkar <parag.lkml@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The 'name' sysfs attribute is mandatory for hwmon devices, but was missing
in this driver.
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Commit d6cb3e41 "bnx2x: fix checksum validation" caused a performance
regression for IPv6. Rx checksum offload does not work. IPv6 packets
are passed to the stack with CHECKSUM_NONE.
The hardware obviously cannot perform IP checksum validation for IPv6,
because there is no checksum in the IPv6 header. This should not prevent
us from setting CHECKSUM_UNNECESSARY.
Tested on BCM57711.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When dump_one_policy() returns an error, e.g. because of a too small
buffer to dump the whole xfrm policy, xfrm_policy_netlink() returns
NULL instead of an error pointer. But its caller expects an error
pointer and therefore continues to operate on a NULL skbuff.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When dump_one_state() returns an error, e.g. because of a too small
buffer to dump the whole xfrm state, xfrm_state_netlink() returns NULL
instead of an error pointer. But its callers expect an error pointer
and therefore continue to operate on a NULL skbuff.
This could lead to a privilege escalation (execution of user code in
kernel context) if the attacker has CAP_NET_ADMIN and is able to map
address 0.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
IPv6 dst should take care of rt_genid too. When a xfrm policy is inserted or
deleted, all dst should be invalidated.
To force the validation, dst entries should be created with ->obsolete set to
DST_OBSOLETE_FORCE_CHK. This was already the case for all functions calling
ip6_dst_alloc(), except for ip6_rt_copy().
As a consequence, we can remove the specific code in inet6_connection_sock.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a policy is inserted or deleted, all dst should be recalculated.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit prepares the use of rt_genid by both IPv4 and IPv6.
Initialization is left in IPv4 part.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We dont use jhash anymore since route cache removal,
so we can get rid of get_random_bytes() calls for rt_genid
changes.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since route cache deletion (89aef8921b), delay is no
more used. Remove it.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the (somewhat meaningless?) dependency on EXPERIMENTAL for the
ivtv-alsa driver. Revise the Kconfig help text to be a little clearer for
the lay person, while we are here.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
IBM reported a soft lockup after applying the fix for the rename_lock
deadlock. Commit c83ce989cb ("VFS: Fix the nfs sillyrename regression
in kernel 2.6.38") was found to be the culprit.
The nfs sillyrename fix used DCACHE_DISCONNECTED to indicate that the
dentry was killed. This flag can be set on non-killed dentries too,
which results in infinite retries when trying to traverse the dentry
tree.
This patch introduces a separate flag: DCACHE_DENTRY_KILLED, which is
only set in d_kill() and makes try_to_ascend() test only this flag.
IBM reported successful test results with this patch.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This change hooks up the ivtv PCM capture stream to the ivtv-alsa interface
driver. This is all that should be needed for basic CX23415/CX23416 PCM
audio capture to be available via ALSA device nodes.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is a cut-and-paste port of the cx18-alsa driver to
create an ivtv-alsa interface module for the ivtv driver.
It is not actually hooked-up to the PCM stream DMA buffers
from the ivtv driver yet. That will be done in a coming change,
since that portion is so very different from the cx18 driver.
This code has all or more of the bugs and shortcomings of the
cx18-alsa interface driver: inconsistent use of itvsc->slock,
ivtv-alsa-mixer.c is dead code, assumes 48 ksps regardless
of the actual setting of the audio capture, problems with
proper struct ivtv and struct ivtv_stream housekeeping,
struct ivtv_open_id.v4l2_fh abuse, and $DIETY knows what else.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It needs the e4000 tuner driver.
Signed-off-by: Philipp Dreimann <philipp@dreimann.net>
Acked-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Used IF frequency is one of the most important parameter to know.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This is done as a minimal printk updating patch to ensure correctness. Yes
it should all one day use dev_foo(), but that's one for the maintainers.
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=32932
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
DIV_ROUND_CLOSEST is faster if the compiler knows it will only be
dealing with unsigned dividends.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
It is not allowed to call usb_clear_halt() after urbs are submitted.
That causes oops sometimes. Move whole streaming_ctrl() logic to
power_ctrl() in order to avoid wrong usb_clear_halt() use. Also,
configuring streaming endpoint in streaming_ctrl() sounds like a
little bit wrong as it is aimed for control stream gate.
Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use list_first_entry instead of list_entry which makes the intention
of the code more clear.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
src bufs belong to out queue, dst bufs belong to in queue. Currently
this is not a real problem since all users currently need exactly one
input and one output buffer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Since i.MX has SPARSE_IRQ enabled the i.MX25 timer is broken. This
is because the internal irqs now start at an offset of NR_IRQS_LEGACY.
The patch fixed this up, but missed the i.MX25 timer which used a
hardcoded value instead of a define. This patch introduces a define
for the timer irq and uses it.
This is broken since introduced with 3.6-rc1:
| commit 8842a9e286
| Author: Shawn Guo <shawn.guo@linaro.org>
| Date: Thu Jun 14 11:16:14 2012 +0800
|
| ARM: imx: enable SPARSE_IRQ for imx platform
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Since commit eb92044eb (ARM i.MX3: Make ccm base address a variable )
it is necessary to pass the CCM register base as a variable.
Fix the CCM register access in mach-armadillo5x0 by passing mx3_ccm_base and
avoid illegal accesses.
Also applies to v3.5
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable@vger.kernel.org
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes
From Nicolas Ferre:
Modify AT91 device tree files for making the GPIO interrupts work.
* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
ARM: at91: fix missing #interrupt-cells on gpio-controller
* 'v3.6-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: SAMSUNG: Use spin_lock_{irqsave,irqrestore} in clk_set_rate
ARM: SAMSUNG: use spin_lock_irqsave() in clk_set_parent
