Commit Graph

260444 Commits

Author SHA1 Message Date
Thomas Gleixner
431e2bcc37 rtc: limit frequency
Due to the hrtimer self rearming mode a user can DoS the machine simply
because it's starved by hrtimer events.

The RTC hrtimer is self rearming.  We really need to limit the frequency
to something sensible.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ben Greear <greearb@candelatech.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:42 -07:00
Thomas Gleixner
2c4f57d12d rtc: handle errors correctly in rtc_irq_set_state()
The code checks the correctness of the parameters, but unconditionally
arms/disarms the hrtimer.

The result is that a random task might arm/disarm rtc timer and surprise
the real owner by either generating events or by stopping them.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ben Greear <greearb@candelatech.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:41 -07:00
Mathias Krause
b45d59fb92 mn10300, exec: remove redundant set_fs(USER_DS)
The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:41 -07:00
Jonghwan Choi
fc92805a8e drivers/base/power/opp.c: fix dev_opp initial value
Dev_opp initial value shoule be ERR_PTR(), IS_ERR() is used to check
error.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:41 -07:00
Mathias Krause
adc400f690 frv, exec: remove redundant set_fs(USER_DS)
The address limit is already set in flush_old_exec() so those calls to
set_fs(USER_DS) are redundant.

Also removed the dead code in flush_thread().

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 16:49:41 -07:00
Linus Torvalds
6fd4ce8864 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (31 commits)
  MIPS: Close races in TLB modify handlers.
  MIPS: Add uasm UASM_i_SRL_SAFE macro.
  MIPS: RB532: Use hex_to_bin()
  MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platforms
  MIPS: PowerTV: Provide cpu-feature-overrides.h
  MIPS: Remove pointless return statement from empty void functions.
  MIPS: Limit fixrange_init() to the FIXMAP region
  MIPS: Install handlers for software IRQs
  MIPS: Move FIXADDR_TOP into spaces.h
  MIPS: Add SYNC after cacheflush
  MIPS: pfn_valid() is broken on low memory HIGHMEM systems
  MIPS: HIGHMEM DMA on noncoherent MIPS32 processors
  MIPS: topdown mmap support
  MIPS: Remove redundant addr_limit assignment on exec.
  MIPS: AR7: Replace __attribute__((__packed__)) with __packed
  MIPS: AR7: Remove 'space before tabs' in platform.c
  MIPS: Lantiq: Add missing clk_enable and clk_disable functions.
  MIPS: AR7: Fix trailing semicolon bug in clock.c
  MAINTAINERS: Update MIPS entry.
  MIPS: BCM63xx: Remove duplicate PERF_IRQSTAT_REG definition
  ...
2011-07-26 14:17:28 -07:00
Linus Torvalds
ba5b56cb3e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits)
  ceph: document unlocked d_parent accesses
  ceph: explicitly reference rename old_dentry parent dir in request
  ceph: document locking for ceph_set_dentry_offset
  ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug
  ceph: protect d_parent access in ceph_d_revalidate
  ceph: protect access to d_parent
  ceph: handle racing calls to ceph_init_dentry
  ceph: set dir complete frag after adding capability
  rbd: set blk_queue request sizes to object size
  ceph: set up readahead size when rsize is not passed
  rbd: cancel watch request when releasing the device
  ceph: ignore lease mask
  ceph: fix ceph_lookup_open intent usage
  ceph: only link open operations to directory unsafe list if O_CREAT|O_TRUNC
  ceph: fix bad parent_inode calc in ceph_lookup_open
  ceph: avoid carrying Fw cap during write into page cache
  libceph: don't time out osd requests that haven't been received
  ceph: report f_bfree based on kb_avail rather than diffing.
  ceph: only queue capsnap if caps are dirty
  ceph: fix snap writeback when racing with writes
  ...
2011-07-26 13:38:50 -07:00
Stephen Rothwell
243dd2809a gma500: udelay(20000) it too long again
so replace it with mdelay(20).

Fixes build error:

  ERROR: "__bad_udelay" [drivers/staging/gma500/psb_gfx.ko] undefined!

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 11:55:14 -07:00
Rafael J. Wysocki
9c646cfc3d USB / Renesas: Fix build issue related to struct scatterlist
Fix build issue caused by undefined struct scatterlist in
drivers/usb/renesas_usbhs/fifo.c.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 11:52:55 -07:00
Rafael J. Wysocki
6c0cbef666 MMC / TMIO: Fix build issue related to struct scatterlist
Fix build issue caused by undefined struct scatterlist in
drivers/mmc/host/tmio_mmc.c.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-26 11:52:55 -07:00
Linus Torvalds
2ac232f37f Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t
  ext3.txt: update the links in the section "useful links" to the latest ones
  ext3: Fix data corruption in inodes with journalled data
  ext2: check xattr name_len before acquiring xattr_sem in ext2_xattr_get
  ext3: Fix compilation with -DDX_DEBUG
  quota: Remove unused declaration
  jbd: Use WRITE_SYNC in journal checkpoint.
  jbd: Fix oops in journal_remove_journal_head()
  ext3: Return -EINVAL when start is beyond the end of fs in ext3_trim_fs()
  ext3/ioctl.c: silence sparse warnings about different address spaces
  ext3/ext4 Documentation: remove bh/nobh since it has been deprecated
  ext3: Improve truncate error handling
  ext3: use proper little-endian bitops
  ext2: include fs.h into ext2_fs.h
  ext3: Fix oops in ext3_try_to_allocate_with_rsv()
  jbd: fix a bug of leaking jh->b_jcount
  jbd: remove dependency on __GFP_NOFAIL
  ext3: Convert ext3 to new truncate calling convention
  jbd: Add fixed tracepoints
  ext3: Add fixed tracepoints

Resolve conflicts in fs/ext3/fsync.c due to fsync locking push-down and
new fixed tracepoints.
2011-07-26 11:34:40 -07:00
Sage Weil
d79698da32 ceph: document unlocked d_parent accesses
For the most part we don't care about racing with rename when directing
MDS requests; either the old or new parent is fine.  Document that, and
do some minor cleanup.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:31:26 -07:00
Sage Weil
41b02e1f9b ceph: explicitly reference rename old_dentry parent dir in request
We carry a pin on the parent directory for the rename source and dest
dentries.  For the source it's r_locked_dir; we need to explicitly
reference the old_dentry parent as well, since the dentry's d_parent may
change between when the request was created and pinned and when it is
freed.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:31:14 -07:00
Sage Weil
4f17726452 ceph: document locking for ceph_set_dentry_offset
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:31:08 -07:00
Sage Weil
e5f86dc377 ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug
Have caller pass in a safely-obtained reference to the parent directory
for calculating a dentry's hash valud.

While we're here, simpify the flow through ceph_encode_fh() so that there
is a single exit point and cleanup.

Also fix a bug with the dentry hash calculation: calculate the hash for the
dentry we were given, not its parent.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:30:55 -07:00
Sage Weil
bf1c6aca96 ceph: protect d_parent access in ceph_d_revalidate
Protect d_parent with d_lock.  Carry a reference.  Simplify the flow so
that there is a single exit point and cleanup.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:30:43 -07:00
Sage Weil
5f21c96dd5 ceph: protect access to d_parent
d_parent is protected by d_lock: use it when looking up a dentry's parent
directory inode.  Also take a reference and drop it in the caller to avoid
a use-after-free.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:30:29 -07:00
Sage Weil
48d0cbd124 ceph: handle racing calls to ceph_init_dentry
The ->lookup() and prepopulate_readdir() callers are working with unhashed
dentries, so we don't have to worry.  The export.c callers, though, need
to initialize something they got back from d_obtain_alias() and are
potentially racing with other callers.  Make sure we don't return unless
the dentry is properly initialized (by us or someone else).

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:30:15 -07:00
Sage Weil
dfabbed6fd ceph: set dir complete frag after adding capability
Curretly ceph_add_cap clears the complete bit if we are newly issued the
FILE_SHARED cap, which is normally the case for a newly issue cap on a new
directory.  That means we clear the just-set bit.  Move the check that sets
the flag to after the cap is added/updated.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:30:02 -07:00
Josh Durgin
029bcbd8b0 rbd: set blk_queue request sizes to object size
This improves performance since more requests can be merged.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com>
2011-07-26 11:29:35 -07:00
Yehuda Sadeh
e985222743 ceph: set up readahead size when rsize is not passed
This should improve the default read performance, as without it
readahead is practically disabled.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
2011-07-26 11:29:14 -07:00
Yehuda Sadeh
79e3057c4c rbd: cancel watch request when releasing the device
We were missing this cleanup, so when a device was released
the osd didn't clean up its watchers list, so following notifications
could be slow as osd needed to timeout on the client.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
2011-07-26 11:29:04 -07:00
Sage Weil
2f90b852e3 ceph: ignore lease mask
The lease mask is no longer used (and it changed a while back).  Instead,
use a non-zero duration to indicate that there is a lease being issued.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:28:25 -07:00
Sage Weil
468640e32c ceph: fix ceph_lookup_open intent usage
We weren't properly calling lookup_instantiate_filp when setting up the
lookup intent, which could lead to file leakage on errors.  So:

 - use separate helper for the hidden snapdir translation, immediately
   following the mds request
 - use ceph_finish_lookup for the final dentry/return value dance in the
   exit path
 - lookup_instantiate_filp on success

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:28:11 -07:00
Sage Weil
9bae113a08 ceph: only link open operations to directory unsafe list if O_CREAT|O_TRUNC
We only need to put these on the directory unsafe list if they have
side effects that fsync(2) should flush out.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:27:59 -07:00
Sage Weil
acda765788 ceph: fix bad parent_inode calc in ceph_lookup_open
We were always getting NULL here because the intent file f_dentry is always
NULL at this point, which means we were always passing NULL to
ceph_mdsc_do_request.  In reality, this was fine, since this isn't
currently ever a write operation that needs to get strung on the dir's
unsafe list.

Use the dir explicitly, and only pass it if this open has side-effects that
a dir fsync should flush.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:27:48 -07:00
Sage Weil
d8de9ab63a ceph: avoid carrying Fw cap during write into page cache
The generic_file_aio_write call may block on balance_dirty_pages while we
flush data to the OSDs.  If we hold a reference to the FILE_WR cap during
that interval revocation by the MDS (e.g., to do a stat(2)) may be very
slow.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:27:34 -07:00
Sage Weil
4cf9d54463 libceph: don't time out osd requests that haven't been received
Keep track of when an outgoing message is ACKed (i.e., the server fully
received it and, presumably, queued it for processing).  Time out OSD
requests only if it's been too long since they've been received.

This prevents timeouts and connection thrashing when the OSDs are simply
busy and are throttling the requests they read off the network.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:27:24 -07:00
Greg Farnum
8f04d42276 ceph: report f_bfree based on kb_avail rather than diffing.
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-07-26 11:27:06 -07:00
Sage Weil
e77dc3e9c0 ceph: only queue capsnap if caps are dirty
We used to go into this branch if i_wrbuffer_ref_head was non-zero.  This
was an ancient check from before we were careful about dealing with all
kinds of caps (and not just dirty pages).  It is cleaner to only queue a
capsnap if there is an actual dirty cap.  If we are racing with...
something...we will end up here with ci->i_wrbuffer_refs but no dirty
caps.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:41 -07:00
Sage Weil
af0ed569d7 ceph: fix snap writeback when racing with writes
There are two problems that come up when we try to queue a capsnap while a
write is in progress:

 - The FILE_WR cap is held, but not yet dirty, so we may queue a capsnap
   with dirty == 0.  That will crash later in __ceph_flush_snaps().  Or
   on the FILE_WR cap if a write is in progress.
 - We may not have i_head_snapc set, which causes problems pretty quickly.
   Look to the snaprealm in this case.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:31 -07:00
Sage Weil
9cfa1098dc ceph: use flag bit for at_end readdir flag
This saves us a word of memory per file.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:18 -07:00
Sage Weil
4918b6d140 ceph: add F_SYNC file flag to force sync (non-O_DIRECT) io
This allows us to force IO through the sync path which you normally only
get when multiple clients are reading/writing to the same file or by
mounting with -o sync.  Among other things, this lets test programs verify
correctness with a single mount.

Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:07 -07:00
Sage Weil
252c6728de ceph: add flags field to file_info
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:25:27 -07:00
Linus Torvalds
fa8f53ace4 Merge branch 'x86-olpc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-olpc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, olpc-xo15-sci: Enable EC wakeup capability
  x86, olpc: Fix dependency on POWER_SUPPLY
  x86, olpc: Add XO-1.5 SCI driver
  x86, olpc: Add XO-1 RTC driver
  x86, olpc-xo1-sci: Propagate power supply/battery events
  x86, olpc-xo1-sci: Add lid switch functionality
  x86, olpc-xo1-sci: Add GPE handler and ebook switch functionality
  x86, olpc: EC SCI wakeup mask functionality
  x86, olpc: Add XO-1 SCI driver and power button control
  x86, olpc: Add XO-1 suspend/resume support
  x86, olpc: Rename olpc-xo1 to olpc-xo1-pm
  x86, olpc: Move CS5536-related constants to cs5535.h
  x86, olpc: Add missing elements to device tree
2011-07-26 11:11:54 -07:00
Linus Torvalds
1d87c28e68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: Cleanup: check return codes of crypto api calls
  CIFS: Fix oops while mounting with prefixpath
  [CIFS] Redundant null check after dereference
  cifs: use cifs_dirent in cifs_save_resume_key
  cifs: use cifs_dirent to replace cifs_get_name_from_search_buf
  cifs: introduce cifs_dirent
  cifs: cleanup cifs_filldir
2011-07-26 11:11:28 -07:00
Linus Torvalds
aebdd82e18 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest:
  ktest: Fix bug when ADD_CONFIG is set but MIN_CONFIG is not
  ktest: Keep fonud configs separate from default configs
  ktest: Add prompt to use OUTPUT_MIN_CONFIG
  ktest: Use Kconfig dependencies to shorten time to make min_config
  ktest: Add test type make_min_config
  ktest: Require one TEST_START in config file
  ktest: Add helper function to avoid duplicate code
  ktest: Add IGNORE_WARNINGS to ignore warnings in some patches
  ktest: Fix tar extracting of modules to target
  ktest: Have the testing tmp dir include machine name
  ktest: Add POST/PRE_BUILD options
  ktest: Allow initrd processing without modules defined
  ktest: Have LOG_FILE evaluate options as well
  ktest: Have wait on stdio honor bug timeout
  ktest: Implement our own force min config
  ktest: Add TEST_NAME option
  ktest: Add CONFIG_BISECT_GOOD option
  ktest: Add detection of triple faults
  ktest: Notify reason to break out of monitoring boot
2011-07-26 11:10:56 -07:00
Linus Torvalds
f01ef569cd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback: (27 commits)
  mm: properly reflect task dirty limits in dirty_exceeded logic
  writeback: don't busy retry writeback on new/freeing inodes
  writeback: scale IO chunk size up to half device bandwidth
  writeback: trace global_dirty_state
  writeback: introduce max-pause and pass-good dirty limits
  writeback: introduce smoothed global dirty limit
  writeback: consolidate variable names in balance_dirty_pages()
  writeback: show bdi write bandwidth in debugfs
  writeback: bdi write bandwidth estimation
  writeback: account per-bdi accumulated written pages
  writeback: make writeback_control.nr_to_write straight
  writeback: skip tmpfs early in balance_dirty_pages_ratelimited_nr()
  writeback: trace event writeback_queue_io
  writeback: trace event writeback_single_inode
  writeback: remove .nonblocking and .encountered_congestion
  writeback: remove writeback_control.more_io
  writeback: skip balance_dirty_pages() for in-memory fs
  writeback: add bdi_dirty_limit() kernel-doc
  writeback: avoid extra sync work at enqueue time
  writeback: elevate queue_io() into wb_writeback()
  ...

Fix up trivial conflicts in fs/fs-writeback.c and mm/filemap.c
2011-07-26 10:39:54 -07:00
Linus Torvalds
a93a132927 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix warning with calling smp_processor_id() in preemptible section
2011-07-26 10:02:58 -07:00
Linus Torvalds
757c26b804 Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (135 commits)
  drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1
  drm/radeon/kms: add missing vddci setting on NI+
  drm/radeon: Add a rmb() in IH processing
  drm/radeon: ATOM Endian fix for atombios_crtc_program_pll()
  drm/radeon: Fix the definition of RADEON_BUF_SWAP_32BIT
  drm/radeon: Do an MMIO read on interrupts when not uisng MSIs
  drm/radeon: Writeback endian fixes
  drm/radeon: Remove a bunch of useless _iomem casts
  drm/gem: add support for private objects
  DRM: clean up and document parsing of video= parameter
  DRM: Radeon: Fix section mismatch.
  drm: really make debug levels match in edid failure code
  drm/radeon/kms: fix i2c map for rv250/280
  drm/nouveau/gr: disable fifo access and idle before suspend ctx unload
  drm/nouveau: pass flag to engine fini() method on suspend
  drm/nouveau: replace nv04_graph_fifo_access() use with direct reg bashing
  drm/nv40/gr: rewrite/split context takedown functions
  drm/nouveau: detect disabled device in irq handler and return IRQ_NONE
  drm/nouveau: ignore connector type when deciding digital/analog on DVI-I
  drm/nouveau: Add a quirk for Gigabyte NX86T
  ...
2011-07-26 09:21:09 -07:00
Jens Axboe
11ccf116d0 block: fix warning with calling smp_processor_id() in preemptible section
After commit 5757a6d7 introduced an unsafe calling of
smp_processor_id(), with preempt debuggin turned on we spew a lot of:

BUG: using smp_processor_id() in preemptible [00000000] code: kjournald/514
caller is __make_request+0x1b8/0x308
[<c0019f44>] (unwind_backtrace+0x0/0xe8) from [<c024b4cc>] (debug_smp_processor_id+0xbc/0xf0)
[<c024b4cc>] (debug_smp_processor_id+0xbc/0xf0) from [<c0223d14>] (__make_request+0x1b8/0x308)
[<c0223d14>] (__make_request+0x1b8/0x308) from [<c02215ac>] (generic_make_request+0x4dc/0x558)
[<c02215ac>] (generic_make_request+0x4dc/0x558) from [<c022173c>] (submit_bio+0x114/0x138)
[<c022173c>] (submit_bio+0x114/0x138) from [<c011f504>] (submit_bh+0x148/0x16c)
[<c011f504>] (submit_bh+0x148/0x16c) from [<c0121ed8>] (__sync_dirty_buffer+0x88/0xd8)
[<c0121ed8>] (__sync_dirty_buffer+0x88/0xd8) from [<c01aff78>] (journal_commit_transaction+0x1198/0x1688)
[<c01aff78>] (journal_commit_transaction+0x1198/0x1688) from [<c01b4034>] (kjournald+0xb4/0x224)
[<c01b4034>] (kjournald+0xb4/0x224) from [<c0069ea0>] (kthread+0x8c/0x94)
[<c0069ea0>] (kthread+0x8c/0x94) from [<c00137f8>] (kernel_thread_exit+0x0/0x8)

Fix this by just using raw_smp_processor_id(), it's just a hint
after all. There's no pinning of the CPU or accessing per-cpu
structures involved.

Reported-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-07-26 15:01:15 +02:00
Jerome Glisse
5a96a899bb drm/radeon/kms: fix DP training for DPEncoderService revision bigger than 1.1
DPEncoderService newer than 1.1 can't properly program the DP (display port)
link training. When facing such version use the DIGxEncoderControl method
instead. Fix DP link training on some R7XX.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-07-26 12:30:55 +01:00
Alex Deucher
4639dd21e7 drm/radeon/kms: add missing vddci setting on NI+
Need to add vddci setting to pm init as well as
resume.  Fixes hangs on load on some boards.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=38754

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-07-26 12:30:34 +01:00
Linus Torvalds
e08dc1325f p9: avoid unused variable warning
Commit 4e34e719e4 ("fs: take the ACL checks to common code") removed
the use of the 'acl' variable in v9fs_iop_get_acl(), but left the
variable definition around.  Remove it to get rid of the warning:

  fs/9p/acl.c: In function ‘v9fs_iop_get_acl’:
  fs/9p/acl.c:101:20: warning: unused variable ‘acl’

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-25 23:43:53 -07:00
Linus Torvalds
1380516599 Merge branch 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (741 commits)
  staging:iio:meter:ade7753 should be 16 bit read not 8 bit for mode register.
  staging:iio:kfifo_buf fix double initialization of the ring device structure.
  staging:iio:accel:lis3l02dq: fix incorrect pointer passed to spi_set_drvdata.
  staging:iio:imu fix missing register table index for some channels
  spectra: enable device before poking it
  staging: rts_pstor: Fix a miswriting
  staging/lirc_bt829: Return -ENODEV when no hardware is found.
  staging/lirc_parallel: remove pointless prototypes.
  staging/lirc_parallel: fix panic on rmmod
  staging:iio:adc:ad7476: Incorrect pointer into spi_set_drvdata.
  Staging: zram: Fix kunmapping order
  Revert "gma500: Fix dependencies"
  gma500: Add medfield header
  gma500: wire up the mrst i2c bus from chip_info
  gma500: Fix DPU build
  gma500: Clean up the DPU config and make it runtime
  gma500: resync with Medfield progress
  gma500: Use the mrst helpers and power control for mode commit
  gma500@ Fix backlight range error
  gma500: More Moorestown muddle meddling means MM maybe might modeset
  ...

Fix up fairly trivial conflicts all over, mostly due to header file
cleanup conflicts, but some deleted files and some just context changes:
 - Documentation/feature-removal-schedule.txt
 - drivers/staging/bcm/headers.h
 - drivers/staging/brcm80211/brcmfmac/dhd_linux.c
 - drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
 - drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h
 - drivers/staging/brcm80211/brcmfmac/wl_iw.c
 - drivers/staging/et131x/et131x_netdev.c
 - drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
 - drivers/staging/rtl8192e/r8192E.h
 - drivers/staging/usbip/userspace/src/utils.h
2011-07-25 23:26:34 -07:00
Linus Torvalds
d5ef642355 Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (26 commits)
  amba pl011: workaround for uart registers lockup
  n_gsm: fix the wrong FCS handling
  pch_uart: add missing comment about OKI ML7223
  pch_uart: Add MSI support
  tty: fix "IRQ45: nobody cared"
  PTI feature to allow user to name and mark masterchannel request.
  0 for o PTI Makefile bug.
  tty: serial: samsung.c remove legacy PM code.
  SERIAL: SC26xx: Fix link error.
  serial: mrst_max3110: initialize waitqueue earlier
  mrst_max3110: Change max missing message priority.
  tty: s5pv210: Add delay loop on fifo reset function for UART
  tty/serial: Fix XSCALE serial ports, e.g. ce4100
  serial: bfin_5xx: fix off-by-one with resource size
  drivers/tty: use printk_ratelimited() instead of printk_ratelimit()
  tty: n_gsm: Added refcount usage to gsm_mux and gsm_dlci structs
  tty: n_gsm: Add raw-ip support
  tty: n_gsm: expose gsmtty device nodes at ldisc open time
  pch_phub: Fix register miss-setting issue
  serial: 8250, increase PASS_LIMIT
  ...
2011-07-25 23:09:27 -07:00
Linus Torvalds
f549953c15 Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (115 commits)
  EHCI: fix direction handling for interrupt data toggles
  USB: serial: add IDs for WinChipHead USB->RS232 adapter
  USB: OHCI: fix another regression for NVIDIA controllers
  usb: gadget: m66592-udc: add pullup function
  usb: gadget: m66592-udc: add function for external controller
  usb: gadget: r8a66597-udc: add pullup function
  usb: renesas_usbhs: support multi driver
  usb: renesas_usbhs: inaccessible pipe is not an error
  usb: renesas_usbhs: care buff alignment when dma handler
  USB: PL2303: correctly handle baudrates above 115200
  usb: r8a66597-hcd: fixup USB_PORT_STAT_C_SUSPEND shift
  usb: renesas_usbhs: compile/config are rescued
  usb: renesas_usbhs: fixup comment-out
  usb: update email address in ohci-sh and r8a66597-hcd
  usb: r8a66597-hcd: add function for external controller
  EHCI: only power off port if over-current is active
  USB: mon: Allow to use usbmon without debugfs
  USB: EHCI: go back to using the system clock for QH unlinks
  ehci: add pci quirk for Ordissimo and RM Slate 100 too
  ehci: refactor pci quirk to use standard dmi_check_system method
  ...

Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
2011-07-25 23:08:32 -07:00
Linus Torvalds
f0deb97ab1 Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  updated Documentation/ja_JP/SubmittingPatches
  debugfs: add documentation for debugfs_create_x64
  uio: uio_pdrv_genirq: Add OF support
  firmware: gsmi: remove sysfs entries when unload the module
  Documentation/zh_CN: Fix messy code file email-clients.txt
  driver core: add more help description for "path to uevent helper"
  driver-core: modify FIRMWARE_IN_KERNEL help message
  driver-core: Kconfig grammar corrections in firmware configuration
  DOCUMENTATION: Replace create_device() with device_create().
  DOCUMENTATION: Update overview.txt in Doc/driver-model.
  pti: pti_tty_install documentation mispelling.
2011-07-25 23:06:24 -07:00
Linus Torvalds
184475029a Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits)
  drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c
  powerpc/85xx: fix mpic configuration in CAMP mode
  powerpc: Copy back TIF flags on return from softirq stack
  powerpc/64: Make server perfmon only built on ppc64 server devices
  powerpc/pseries: Fix hvc_vio.c build due to recent changes
  powerpc: Exporting boot_cpuid_phys
  powerpc: Add CFAR to oops output
  hvc_console: Add kdb support
  powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon
  powerpc/irq: Quieten irq mapping printks
  powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs
  powerpc: Add mpt2sas driver to pseries and ppc64 defconfig
  powerpc: Disable IRQs off tracer in ppc64 defconfig
  powerpc: Sync pseries and ppc64 defconfigs
  powerpc/pseries/hvconsole: Fix dropped console output
  hvc_console: Improve tty/console put_chars handling
  powerpc/kdump: Fix timeout in crash_kexec_wait_realmode
  powerpc/mm: Fix output of total_ram.
  powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards
  powerpc: Correct annotations of pmu registration functions
  ...

Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and
drivers/cpufreq
2011-07-25 22:59:39 -07:00
Linus Torvalds
3b76eefe0f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: Revive reporting of spurious interrupts
  m68knommu: Move forward declaration of do_IRQ() from machdep.h to irq.h
  m68k: fix some atomic operation asm address modes for ColdFire
  m68k: use CPU_HAS_NO_BITFIELDS for signal functions
  m68k: merge and clean up delay.h files
  m68knommu: correctly use trap_init
  m68knommu: merge ColdFire 5206 and 5206e platform code
  m68k: merge mmu and non-mmu bitops.h
  m68k: merge MMU and non MMU versions of system.h
  m68k: merge MMU and non-MMU versions of asm/hardirq.h
  m68k: merge the non-mmu and mmu versions of module.c
  m68knommu: Fix printk() format in free_initrd_mem()
  m68knommu: Make empty_zero_page "void *", like on m68k
2011-07-25 22:50:54 -07:00