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  1. 20 Jul, 2012 25 commits
  3. 19 Jul, 2012 13 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · 85efc72a
      Linus Torvalds authored 
      Pull last minute Ceph fixes from Sage Weil:
 "The important one fixes a bug in the socket failure handling behavior
  that was turned up in some recent failure injection testing.  The
  other two are minor bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: endian bug in rbd_req_cb()
  rbd: Fix ceph_snap_context size calculation
  libceph: fix messenger retry
      85efc72a
    • Linus Torvalds's avatar
      Merge tag 'md-3.5-fixes' of git://neil.brown.name/md · 3e4b9459
      Linus Torvalds authored 
      Pull three md bugfixes from NeilBrown:
 "One of the bugs was introduced in 3.5-rc1.  Others have been there for
  longer."

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md/raid1: close some possible races on write errors during resync
  md: avoid crash when stopping md array races with closing other open fds.
  md: fix bug in handling of new_data_offset
      3e4b9459
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 309d4b00
      Linus Torvalds authored 
      Pull networking changes from David Miller:
 "Ok, we should be good to go now"

1) We have to statically initialize the init_net device list head rather
   than do so in an initcall, otherwise netprio_cgroup crashes if it's
   built statically rather than modular (Mark D.  Rustad)

2) Fix SKB null oopser in CIPSO ipv4 option processing (Paul Moore)

3) Qlogic maintainers update (Anirban Chakraborty)

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: Statically initialize init_net.dev_base_head
  MAINTAINERS: Changes in qlcnic and qlge maintainers list
  cipso: don't follow a NULL pointer when setsockopt() is called
      309d4b00
    • Linus Torvalds's avatar
      Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · 61c901c5
      Linus Torvalds authored 
      Pull HID update from Jiri Kosina:
 "A final round of changes for HID for 3.5: just device ID additions."

* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hid-multitouch: add support for Zytronic panels
  HID: add Sennheiser BTD500USB device support
  HID: add battery quirk for Apple Wireless ANSI
      61c901c5
    • Ezequiel Garcia's avatar
      cx25821: Remove bad strcpy to read-only char* · 380e99fc
      Ezequiel Garcia authored 
      The strcpy was being used to set the name of the board.  Since the
destination char* was read-only and the name is set statically at
compile time; this was both wrong and redundant.

The type of char* is changed to const char* to prevent future errors.
Reported-by: default avatarRadek Masin <radek@masin.eu>
Signed-off-by: default avatarEzequiel Garcia <elezegarcia@gmail.com>
[ Taking directly due to vacations   - Linus ]
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      380e99fc
    • Benjamin Tissoires's avatar
      HID: hid-multitouch: add support for Zytronic panels · e9a09aed
      Benjamin Tissoires authored 
      Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
      e9a09aed
    • NeilBrown's avatar
      md/raid1: close some possible races on write errors during resync · 58e94ae1
      NeilBrown authored 
      commit 4367af55
   md/raid1: clear bad-block record when write succeeds.

Added a 'reschedule_retry' call possibility at the end of
end_sync_write, but didn't add matching code at the end of
sync_request_write.  So if the writes complete very quickly, or
scheduling makes it seem that way, then we can miss rescheduling
the request and the resync could hang.

Also commit 73d5c38a
    md: avoid races when stopping resync.

Fix a race condition in this same code in end_sync_write but didn't
make the change in sync_request_write.

This patch updates sync_request_write to fix both of those.
Patch is suitable for 3.1 and later kernels.
Reported-by: default avatarAlexander Lyakas <alex.bolshoy@gmail.com>
Original-version-by: default avatarAlexander Lyakas <alex.bolshoy@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      58e94ae1
    • NeilBrown's avatar
      md: avoid crash when stopping md array races with closing other open fds. · a05b7ea0
      NeilBrown authored 
      md will refuse to stop an array if any other fd (or mounted fs) is
using it.
When any fs is unmounted of when the last open fd is closed all
pending IO will be flushed (e.g. sync_blockdev call in __blkdev_put)
so there will be no pending IO to worry about when the array is
stopped.

However in order to send the STOP_ARRAY ioctl to stop the array one
must first get and open fd on the block device.
If some fd is being used to write to the block device and it is closed
after mdadm open the block device, but before mdadm issues the
STOP_ARRAY ioctl, then there will be no last-close on the md device so
__blkdev_put will not call sync_blockdev.

If this happens, then IO can still be in-flight while md tears down
the array and bad things can happen (use-after-free and subsequent
havoc).

So in the case where do_md_stop is being called from an open file
descriptor, call sync_block after taking the mutex to ensure there
will be no new openers.

This is needed when setting a read-write device to read-only too.

Cc: stable@vger.kernel.org
Reported-by: default avatarmajianpeng <majianpeng@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      a05b7ea0
    • NeilBrown's avatar
      md: fix bug in handling of new_data_offset · 25f7fd47
      NeilBrown authored 
      commit c6563a8c
    md: add possibility to change data-offset for devices.

introduced a 'new_data_offset' attribute which should normally
be the same as 'data_offset', but can be explicitly set to a different
value to allow a reshape operation to move the data.

Unfortunately when the 'data_offset' is explicitly set through
sysfs, the new_data_offset is not also set, so the two would become
out-of-sync incorrectly.

One result of this is that trying to set the 'size' after the
'data_offset' would fail because it is not permitted to set the size
when the 'data_offset' and 'new_data_offset' are different - as that
can be confusing.
Consequently when mdadm tried to do this while assembling an IMSM
array it would fail.

This bug was introduced in 3.5-rc1.
Reported-by: default avatarBrian Downing <bdowning@lavos.net>
Bisected-by: default avatarBrian Downing <bdowning@lavos.net>
Tested-by: default avatarBrian Downing <bdowning@lavos.net>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      25f7fd47
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · 8a7298b7
      Linus Torvalds authored 
      Pull target fixes from Nicholas Bellinger:
 "This includes a bugfix from MDR to address a NULL pointer OOPs with
  FCoE aborts, along with a WRITE_SAME emulation bugfix for NOLB=0
  cases, and persistent reservation return cleanups from Roland.

  All three patches are CC'ed to stable."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix range calculation in WRITE SAME emulation when num blocks == 0
  target: Clean up returning errors in PR handling code
  tcm_fc: Fix crash seen with aborts and large reads
      8a7298b7
    • Olaf Hering's avatar
      kexec: update URL of kexec homepage · b1bdd2eb
      Olaf Hering authored 
      The referenced html file does not exist anymore. Replace the URL with
the current project homepage.
Signed-off-by: default avatarOlaf Hering <olaf@aepfle.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b1bdd2eb
    • Yoichi Yuasa's avatar
      mips: fix bug.h build regression · 893a0574
      Yoichi Yuasa authored 
      Commit 37778088 ("bug.h: need linux/kernel.h for TAINT_WARN.") broke
all MIPS builds:

    CC      arch/mips/kernel/machine_kexec.o
  include/linux/log2.h: In function '__ilog2_u32':
  include/linux/log2.h:34:2: error: implicit declaration of function 'fls' [-Werror=implicit-function-declaration]
  include/linux/log2.h: In function '__ilog2_u64':
  include/linux/log2.h:42:2: error: implicit declaration of function 'fls64' [-Werror=implicit-function-declaration]
  ...
Signed-off-by: default avatarYoichi Yuasa <yuasa@linux-mips.org>
Tested-by: default avatarJohn Crispin <blogic@openwrt.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      893a0574
    • Linus Torvalds's avatar
      Make wait_for_device_probe() also do scsi_complete_async_scans() · eea03c20
      Linus Torvalds authored 
      Commit a7a20d10 ("sd: limit the scope of the async probe domain")
make the SCSI device probing run device discovery in it's own async
domain.

However, as a result, the partition detection was no longer synchronized
by async_synchronize_full() (which, despite the name, only synchronizes
the global async space, not all of them).  Which in turn meant that
"wait_for_device_probe()" would not wait for the SCSI partitions to be
parsed.

And "wait_for_device_probe()" was what the boot time init code relied on
for mounting the root filesystem.

Now, most people never noticed this, because not only is it
timing-dependent, but modern distributions all use initrd.  So the root
filesystem isn't actually on a disk at all.  And then before they
actually mount the final disk filesystem, they will have loaded the
scsi-wait-scan module, which not only does the expected
wait_for_device_probe(), but also does scsi_complete_async_scans().

[ Side note: scsi_complete_async_scans() had also been partially broken,
  but that was fixed in commit 43a8d39d ("fix async probe
  regression"), so that same commit a7a20d10 had actually broken
  setups even if you used scsi-wait-scan explicitly ]

Solve this problem by just moving the scsi_complete_async_scans() call
into wait_for_device_probe().  Everybody who wants to wait for device
probing to finish really wants the SCSI probing to complete, so there's
no reason not to do this.

So now "wait_for_device_probe()" really does what the name implies, and
properly waits for device probing to finish.  This also removes the now
unnecessary extra calls to scsi_complete_async_scans().
Reported-and-tested-by: default avatarArtem S. Tashkinov <t.artem@mailcity.com>
Cc: Dan Williams <dan.j.williams@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: Borislav Petkov <bp@amd64.org>
Cc: linux-scsi <linux-scsi@vger.kernel.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      eea03c20
  5. 18 Jul, 2012 2 commits
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