linux.git/include, branch v3.0-rc6

Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x

2011-07-04T22:53:53+00:00

* 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-3.x:
  vesafb: fix memory leak
  fbdev: amba: Link fb device to its parent
  fsl-diu-fb: remove check for pixel clock ranges
  udlfb: Correct sub-optimal resolution selection.
  hecubafb: add module_put on error path in hecubafb_probe()
  sm501fb: fix section mismatch warning
  gx1fb: Fix section mismatch warnings
  fbdev: sh_mobile_meram: Correct pointer check for YCbCr chroma plane

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

2011-07-02T16:26:53+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: sb16 - Fix build errors on MIPS and others with 13bit ioctl size
  ALSA: hdspm - Fix compile warnings with PPC
  ALSA: cs5535 - Fix invalid big-endian conversions
  ALSA: HDMI - fix ELD monitor name length
  ALSA: atmel - update author email for ABDAC, AC97C and AT73C213
  ALSA: HDA: Add model=auto quirk for Acer Aspire 3830TG
  ALSA: HDA: Add a new Conexant codec ID (506c)

ALSA: sb16 - Fix build errors on MIPS and others with 13bit ioctl size

2011-06-30T13:33:57+00:00

One of ioctl definition in sound/sb16_csp.h contains the data size
over 8kB, and this causes build errors on architectures like MIPS,
which define _IOC_SIZEBITS=13.

For avoiding this build errors but keeping the compatibility, manually
expand with _IOC() instead of using _IOW() for the problematic ioctl.

Signed-off-by: Takashi Iwai

Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

2011-06-28T18:15:36+00:00

* 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Connector: Correctly set the error code in case of success when dispatching receive callbacks
  Connector: Set the CN_NETLINK_USERS correctly
  pti: PTI semantics fix in pti_tty_cleanup.
  pti: ENXIO error case memory leak PTI fix.
  pti: double-free security PTI fix
  drivers:misc: ti-st: fix skipping of change remote baud
  drivers/base/platform.c: don't mark platform_device_register_resndata() as __init_or_module
  st_kim: Handle case of no device found for ID 0
  firmware: fix GOOGLE_SMI kconfig dependency warning

Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

2011-06-28T18:14:55+00:00

* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  serial: bcm63xx_uart: fix irq storm after rx fifo overrun.
  amba pl011: platform data for reg lockup and glitch v2
  amba pl011: workaround for uart registers lockup
  tty: n_gsm: improper skb_pull() use was leaking framed data
  tty: n_gsm: Fixed logic to decode break signal from modem status
  TTY: ntty, add one more sanity check
  TTY: ldisc, do not close until there are readers
  8250: Fix capabilities when changing the port type
  8250_pci: Fix missing const from merges
  ARM: SAMSUNG: serial: Fix on handling of one clock source for UART
  serial: ioremap warning fix for jsm driver.
  8250_pci: add -ENODEV code for Intel EG20T PCH

mm: fix assertion mapping->nrpages == 0 in end_writeback()

2011-06-28T01:00:13+00:00

Under heavy memory and filesystem load, users observe the assertion
mapping->nrpages == 0 in end_writeback() trigger.  This can be caused by
page reclaim reclaiming the last page from a mapping in the following
race:

	CPU0				CPU1
  ...
  shrink_page_list()
    __remove_mapping()
      __delete_from_page_cache()
        radix_tree_delete()
					evict_inode()
					  truncate_inode_pages()
					    truncate_inode_pages_range()
					      pagevec_lookup() - finds nothing
					  end_writeback()
					    mapping->nrpages != 0 -> BUG
        page->mapping = NULL
        mapping->nrpages--

Fix the problem by doing a reliable check of mapping->nrpages under
mapping->tree_lock in end_writeback().

Analyzed by Jay , lost in LKML, and dug out
by Miklos Szeredi .

Cc: Jay 
Cc: Miklos Szeredi 
Signed-off-by: Jan Kara 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

include/linux/compat.h: declare compat_sys_sendmmsg()

2011-06-28T01:00:13+00:00

This is required for tilegx to be able to use the compat unistd.h header
where compat_sys_sendmmsg() is now mentioned.

Signed-off-by: Chris Metcalf 
Cc: Arnd Bergmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tmpfs: add shmem_read_mapping_page_gfp

2011-06-28T01:00:12+00:00

Although it is used (by i915) on nothing but tmpfs, read_cache_page_gfp()
is unsuited to tmpfs, because it inserts a page into pagecache before
calling the filesystem's ->readpage: tmpfs may have pages in swapcache
which only it knows how to locate and switch to filecache.

At present tmpfs provides a ->readpage method, and copes with this by
copying pages; but soon we can simplify it by removing its ->readpage.
Provide shmem_read_mapping_page_gfp() now, ready for that transition,

Export shmem_read_mapping_page_gfp() and add it to list in shmem_fs.h,
with shmem_read_mapping_page() inline for the common mapping_gfp case.

(shmem_read_mapping_page_gfp or shmem_read_cache_page_gfp? Generally the
read_mapping_page functions use the mapping's ->readpage, and the
read_cache_page functions use the supplied filler, so I think
read_cache_page_gfp was slightly misnamed.)

Signed-off-by: Hugh Dickins 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tmpfs: take control of its truncate_range

2011-06-28T01:00:12+00:00

2.6.35's new truncate convention gave tmpfs the opportunity to control
its file truncation, no longer enforced from outside by vmtruncate().
We shall want to build upon that, to handle pagecache and swap together.

Slightly redefine the ->truncate_range interface: let it now be called
between the unmap_mapping_range()s, with the filesystem responsible for
doing the truncate_inode_pages_range() from it - just as the filesystem
is nowadays responsible for doing that from its ->setattr.

Let's rename shmem_notify_change() to shmem_setattr().  Instead of
calling the generic truncate_setsize(), bring that code in so we can
call shmem_truncate_range() - which will later be updated to perform its
own variant of truncate_inode_pages_range().

Remove the punch_hole unmap_mapping_range() from shmem_truncate_range():
now that the COW's unmap_mapping_range() comes after ->truncate_range,
there is no need to call it a third time.

Export shmem_truncate_range() and add it to the list in shmem_fs.h, so
that i915_gem_object_truncate() can call it explicitly in future; get
this patch in first, then update drm/i915 once this is available (until
then, i915 will just be doing the truncate_inode_pages() twice).

Though introduced five years ago, no other filesystem is implementing
->truncate_range, and its only other user is madvise(,,MADV_REMOVE): we
expect to convert it to fallocate(,FALLOC_FL_PUNCH_HOLE,,) shortly,
whereupon ->truncate_range can be removed from inode_operations -
shmem_truncate_range() will help i915 across that transition too.

Signed-off-by: Hugh Dickins 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: move shmem prototypes to shmem_fs.h

2011-06-28T01:00:12+00:00

Before adding any more global entry points into shmem.c, gather such
prototypes into shmem_fs.h.  Remove mm's own declarations from swap.h,
but for now leave the ones in mm.h: because shmem_file_setup() and
shmem_zero_setup() are called from various places, and we should not
force other subsystems to update immediately.

Signed-off-by: Hugh Dickins 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds