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Frank Munzert b3c21e4919 [S390] tape: disable interrupts in tape_open and tape_release 
Get tape device lock with interrupts disabled. Otherwise lockdep will issue a
warning similar to:

=================================
[ INFO: inconsistent lock state ]
2.6.27 #1
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
vol_id/2903 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (sch->lock){++..}, at: [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
{in-hardirq-W} state was registered at:
  [<000000000007ce5c>] __lock_acquire+0x894/0xa74
  [<000000000007d0ce>] lock_acquire+0x92/0xb8
  [<0000000000345154>] _spin_lock+0x5c/0x9c
  [<0000000000202264>] do_IRQ+0x124/0x1f0
  [<0000000000026610>] io_return+0x0/0x8

irq event stamp: 847
hardirqs last  enabled at (847): [<000000000007aca6>] trace_hardirqs_on+0x2a/0x38
hardirqs last disabled at (846): [<0000000000076ca2>] trace_hardirqs_off+0x2a/0x38
softirqs last  enabled at (0): [<000000000004909e>] copy_process+0x43e/0x11f4
softirqs last disabled at (0): [<0000000000000000>] 0x0

other info that might help us debug this:
1 lock held by vol_id/2903:
 #0:  (&bdev->bd_mutex){--..}, at: [<000000000010e0f4>] do_open+0x78/0x358

stack backtrace:
CPU: 1 Not tainted 2.6.27 #1},
Process vol_id (pid: 2903, task: 000000003d4c0000, ksp: 000000003d4e3b10)
0400000000000000 000000003d4e3830 0000000000000002 0000000000000000
       000000003d4e38d0 000000003d4e3848 000000003d4e3848 00000000000168a8
       0000000000000000 000000003d4e3b10 0000000000000000 0000000000000000
       000000003d4e3830 000000000000000c 000000003d4e3830 000000003d4e38a0
       000000000034aa98 00000000000168a8 000000003d4e3830 000000003d4e3880
Call Trace:
([<000000000001681c>] show_trace+0x138/0x158)
 [<0000000000016902>] show_stack+0xc6/0xf8
 [<00000000000170d4>] dump_stack+0xb0/0xc0
 [<0000000000078810>] print_usage_bug+0x1e8/0x228
 [<000000000007a71c>] mark_lock+0xb14/0xd24
 [<000000000007cd5a>] __lock_acquire+0x792/0xa74
 [<000000000007d0ce>] lock_acquire+0x92/0xb8
 [<0000000000345154>] _spin_lock+0x5c/0x9c
 [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
 [<000003e00005185c>] tapeblock_open+0x98/0xd0 [tape]

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-28 11:12:05 +01:00
..
accessibility
acpi ACPI suspend: build fix for ACPI_SLEEP=n && XEN_SAVE_RESTORE=y. 2008-10-25 04:07:13 -04:00
amba
ata libata: fix NCQ devices behind port multipliers 2008-10-27 19:25:30 +01:00
atm
auxdisplay
base memory_probe: fix wrong sysfs file attribute 2008-10-20 08:52:32 -07:00
block [PATCH] sanitize blkdev_get() and friends 2008-10-21 07:49:06 -04:00
bluetooth btsdio: free sk_buff with kfree_skb 2008-10-26 23:08:48 -07:00
cdrom [PATCH] switch viocd 2008-10-21 07:48:21 -04:00
char Tidy up addresses in random drivers 2008-10-27 08:39:52 -07:00
clocksource Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus 2008-10-20 13:14:06 +02:00
connector
cpufreq
cpuidle Merge branch 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-23 10:53:02 -07:00
crypto
dca
dio
dma Merge branch 'i7300_idle' into release 2008-10-25 04:07:44 -04:00
edac edac cell: fix incorrect edac_mode 2008-10-20 08:52:40 -07:00
eisa
firewire firewire: fw-sbp2: fix races 2008-10-26 10:27:01 +01:00
firmware x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
gpio mfd: twl4030-gpio driver 2008-10-22 01:19:39 +02:00
gpu Merge branch 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2008-10-23 10:18:40 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2008-10-26 16:34:14 -07:00
hwmon hwmon: (abituguru3) enable DMI probing feature on AW9D-MAX 2008-10-26 17:04:40 +01:00
i2c Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2008-10-23 10:10:25 -07:00
ide arm ide breakage 2008-10-26 09:35:05 -07:00
idle i7300_idle: Cleanup based review comments 2008-10-24 12:55:14 -04:00
ieee1394
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-10-23 08:16:03 -07:00
input INPUT: sgi_btns: Add license specification 2008-10-27 16:18:28 +00:00
isdn
leds leds: da903x: fix the building failure of incomplete type of 'work' 2008-10-27 08:38:16 -07:00
lguest
macintosh
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2008-10-26 16:42:18 -07:00
media V4L/DVB (9336): cx88: always de-alloc frontends on fault condition 2008-10-21 14:32:12 -02:00
memstick [PATCH] switch memstick 2008-10-21 07:48:33 -04:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-23 13:02:03 -07:00
mfd mfd: Make WM8400 depend on I2C until SPI is submitted 2008-10-24 18:34:39 +02:00
misc intel_menlo: fix build warning 2008-10-23 00:43:47 -04:00
mmc [PATCH] switch mmc 2008-10-21 07:48:37 -04:00
mtd [PATCH] propagate mode through open_bdev_excl/close_bdev_excl 2008-10-21 07:49:00 -04:00
net libertas: free sk_buff with kfree_skb 2008-10-26 23:09:27 -07:00
nubus
of Merge commit 'kumar/kumar-for-2.6.28' 2008-10-21 15:49:55 +11:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile 2008-10-23 10:05:40 -07:00
parisc [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
parport 8250: Oxford Semiconductor Devices 2008-10-23 09:31:09 -07:00
pci ACPI: Oops in ACPI with git latest 2008-10-25 04:07:14 -04:00
pcmcia Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-10-23 08:12:21 -07:00
pnp Merge branch 'linus' into test 2008-10-23 00:11:07 -04:00
power Merge git://git.infradead.org/battery-2.6 2008-10-20 09:44:30 -07:00
ps3 ps3: Add passthru support for non-audio streams 2008-10-20 08:05:15 +02:00
rapidio
regulator
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2008-10-23 10:20:15 -07:00
s390 [S390] tape: disable interrupts in tape_open and tape_release 2008-10-28 11:12:05 +01:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-23 13:02:03 -07:00
serial 8250: Add more OxSemi devices 2008-10-23 09:35:18 -07:00
sh
sn
spi
ssb
staging staging: pcc_acpi: delete obsolete driver 2008-10-23 15:31:09 -04:00
tc
telephony phonedev: remove BKL 2008-10-20 08:52:36 -07:00
thermal
uio Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-10-20 13:42:14 -07:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2008-10-23 10:09:50 -07:00
uwb uwb: wrong sizeof argument in mac address compare 2008-10-20 14:37:53 +01:00
video Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-10-23 16:06:49 -07:00
virtio
w1 x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
watchdog watchdog: Fix warning 2008-10-23 09:19:47 -07:00
xen x86, um: ... and asm-x86 move 2008-10-22 22:55:20 -07:00
zorro
Kconfig Merge branch 'master' into for-upstream 2008-10-20 16:07:19 +01:00
Makefile Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2008-10-26 16:35:46 -07:00