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Takashi Iwai 8a4259bf89 ALSA: ctxfi - Fix Oops at mmapping 
Replace a spinlock with a mutex protecting the vm block list at
mmap / munmap calls, which caused Oops like below:

BUG: sleeping function called from invalid context at mm/slub.c:1599
in_atomic(): 0, irqs_disabled(): 1, pid: 32065, name: xine
Pid: 32065, comm: xine Tainted: P           2.6.29.4-75.fc10.x86_64 #1
Call Trace:
  [<ffffffff81040685>] __might_sleep+0x105/0x10a
  [<ffffffff810c9fae>] kmem_cache_alloc+0x32/0xe2
  [<ffffffffa08e3110>] ct_vm_map+0xfa/0x19e [snd_ctxfi]
  [<ffffffffa08e1a07>] ct_map_audio_buffer+0x4c/0x76 [snd_ctxfi]
  [<ffffffffa08e2aa5>] atc_pcm_playback_prepare+0x1d7/0x2a8 [snd_ctxfi]
  [<ffffffff8105ef3f>] ? up_read+0x9/0xb
  [<ffffffff81186b61>] ? __up_read+0x7c/0x87
  [<ffffffffa08e36a6>] ct_pcm_playback_prepare+0x39/0x60 [snd_ctxfi]
  [<ffffffffa0886bcb>] snd_pcm_do_prepare+0x16/0x28 [snd_pcm]
  [<ffffffffa08867c7>] snd_pcm_action_single+0x2d/0x5b [snd_pcm]
  [<ffffffffa08881f3>] snd_pcm_action_nonatomic+0x52/0x6a [snd_pcm]
  [<ffffffffa088a723>] snd_pcm_common_ioctl1+0x404/0xc79 [snd_pcm]
  [<ffffffff810c52c8>] ? alloc_pages_current+0xb9/0xc2
  [<ffffffff810c9402>] ? new_slab+0x1a5/0x1cb
  [<ffffffff810ab9ea>] ? vma_prio_tree_insert+0x23/0xc1
  [<ffffffffa088b411>] snd_pcm_playback_ioctl1+0x213/0x230 [snd_pcm]
  [<ffffffff810b6c20>] ? mmap_region+0x397/0x4c9
  [<ffffffffa088bd9b>] snd_pcm_playback_ioctl+0x2e/0x36 [snd_pcm]
  [<ffffffff810ddc64>] vfs_ioctl+0x2a/0x78
  [<ffffffff810de130>] do_vfs_ioctl+0x462/0x4a2
  [<ffffffff81029cef>] ? default_spin_lock_flags+0x9/0xe
  [<ffffffff81374647>] ? trace_hardirqs_off_thunk+0x3a/0x6c
  [<ffffffff810de1c5>] sys_ioctl+0x55/0x77
  [<ffffffff8101133a>] system_call_fastpath+0x16/0x1b

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-06-02 08:40:51 +02:00
..
aoa ALSA: AOA: Convert onyx and tas codecs to new-style i2c drivers 2009-04-21 07:31:48 +02:00
arm [ARM] pxa: merge AC97 platform data structures 2009-04-15 10:54:06 +08:00
atmel ALSA: snd-atmel-abdac: increase periods_min to 6 instead of 4 2009-04-06 03:56:28 +02:00
core ALSA: pcm core - Avoid jiffies check for devices with BATCH flag 2009-04-28 15:10:16 +02:00
drivers Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
i2c V4L/DVB (10771): tea575x-tuner: convert it to V4L2 API 2009-03-30 12:43:02 -03:00
isa ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers 2009-04-28 15:06:44 +02:00
mips Merge branch 'topic/misc' into for-linus 2009-03-24 00:35:50 +01:00
oss trivial: Fix misspelling of firmware 2009-03-30 15:21:59 +02:00
parisc ALSA: Convert to snd_card_create() in other sound/* 2009-01-12 15:21:19 +01:00
pci ALSA: ctxfi - Fix Oops at mmapping 2009-06-02 08:40:51 +02:00
pcmcia ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers 2009-04-28 15:06:44 +02:00
ppc ALSA: keywest: Convert to new-style i2c driver 2009-04-21 07:32:04 +02:00
sh trivial: Fix misspelling of firmware 2009-03-30 15:21:59 +02:00
soc ASoC: Remove BROKEN from mpc5200 kconfig 2009-05-04 16:03:21 +02:00
sparc ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers 2009-04-28 15:06:44 +02:00
spi ALSA: Convert to snd_card_create() in other sound/* 2009-01-12 15:21:19 +01:00
synth Merge branch 'topic/misc' into for-linus 2009-03-24 00:35:50 +01:00
usb ALSA: Add missing SNDRV_PCM_INFO_BATCH flag to some drivers 2009-04-28 15:06:44 +02:00
ac97_bus.c ALSA: ac97 - Include ac97_codec.h for ac97_bus_type declaration 2008-12-02 16:25:37 +01:00
Kconfig ALSA: Add Atmel ALSA drivers directory 2009-02-05 15:08:53 +01:00
last.c
Makefile ALSA: Add Atmel ALSA drivers directory 2009-02-05 15:08:53 +01:00
sound_core.c ALSA: Fix declaration of sound_class 2008-12-15 16:55:27 +01:00
sound_firmware.c