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  1. Dec 16, 2011
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  7. Dec 13, 2011
    • Yinghai Lu's avatar
      ibft: Fix finding IBFT ACPI table on UEFI · 935a9fee
      Yinghai Lu authored 
      

Found one system with UEFI/iBFT, kernel does not detect the iBFT during
iscsi_ibft module loading.

Root cause: on x86 (UEFI), we are calling of find_ibft_region() much earlier
- specifically in setup_arch() before ACPI is enabled.

Try to split acpi checking code out and call that later

At that time ACPI iBFT already get permanent mapped with ioremap.
So isa_virt_to_bus() will get wrong phys from right virt address.
We could just skip that phys address printing.

For legacy one, print the found address early.

-v2: update comments and description according to Konrad.
-v3: fix problem about module use case that is found by Konrad.
-v4: use acpi_get_table() instead of acpi_table_parse() to handle module use case that is found by Konrad again..
Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad@kernel.org>
      935a9fee
    • Miklos Szeredi's avatar
      fuse: llseek fix race · 73104b6e
      Miklos Szeredi authored 
      Fix race between lseek(fd, 0, SEEK_CUR) and read/write.  This was fixed in
generic code by commit 5b6f1eb9

 (vfs: lseek(fd, 0, SEEK_CUR) race condition).

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
      73104b6e
    • Roel Kluin's avatar
      fuse: fix llseek bug · b48c6af2
      Roel Kluin authored 
      The test in fuse_file_llseek() "not SEEK_CUR or not SEEK_SET" always evaluates
to true.

This was introduced in 3.1 by commit 06222e49

 (fs: handle SEEK_HOLE/SEEK_DATA
properly in all fs's that define their own llseek) and changed the behavior of
SEEK_CUR and SEEK_SET to always retrieve the file attributes.  This is a
performance regression.

Fix the test so that it makes sense.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
CC: Josef Bacik <josef@redhat.com>
CC: Al Viro <viro@zeniv.linux.org.uk>
      b48c6af2
    • Miklos Szeredi's avatar
      fuse: fix fuse_retrieve · 48706d0a
      Miklos Szeredi authored 
      

Fix two bugs in fuse_retrieve():

 - retrieving more than one page would yield repeated instances of the
   first page

 - if more than FUSE_MAX_PAGES_PER_REQ pages were requested than the
   request page array would overflow

fuse_retrieve() was added in 2.6.36 and these bugs had been there since the
beginning.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
      48706d0a
    • Linus Torvalds's avatar
      linux/log2.h: Fix rounddown_pow_of_two(1) · 13c07b02
      Linus Torvalds authored 
      Exactly like roundup_pow_of_two(1), the rounddown version was buggy for
the case of a compile-time constant '1' argument.  Probably because it
originated from the same code, sharing history with the roundup version
from before the bugfix (for that one, see commit 1a06a52e

: "Fix
roundup_pow_of_two(1)").

However, unlike the roundup version, the fix for rounddown is to just
remove the broken special case entirely.  It's simply not needed - the
generic code

    1UL << ilog2(n)

does the right thing for the constant '1' argment too.  The only reason
roundup needed that special case was because rounding up does so by
subtracting one from the argument (and then adding one to the result)
causing the obvious problems with "ilog2(0)".

But rounddown doesn't do any of that, since ilog2() naturally truncates
(ie "rounds down") to the right rounded down value.  And without the
ilog2(0) case, there's no reason for the special case that had the wrong
value.

tl;dr: rounddown_pow_of_two(1) should be 1, not 0.

Acked-by: default avatarDmitry Torokhov <dtor@vmware.com>
Cc: stable@kernel.org
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      13c07b02
    • Linus Torvalds's avatar
      Merge branch 'hwmon-for-linus' of... · 12870da5
      Linus Torvalds authored 
      Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (jz4740) Staticise jz4740_hwmon_driver
  hwmon: (jz4740) fix signedness bug
      12870da5
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc · 71fe5cca
      Linus Torvalds authored 
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined
  mmc: sdhci-s3c: Remove old and misprototyped suspend operations
  mmc: tmio: fix clock gating on platforms with a .set_pwr() method
  mmc: sh_mmcif: fix clock gating on platforms with a .down_pwr() method
  mmc: core: Fix typo at mmc_card_sleep
  mmc: core: Fix power_off_notify during suspend
  mmc: core: Fix setting power notify state variable for non-eMMC
  mmc: core: Add quirk for long data read time
  mmc: Add module.h include to sdhci-cns3xxx.c
  mmc: mxcmmc: fix falling back to PIO
  mmc: omap_hsmmc: DMA unmap only once in case of MMC error
      71fe5cca
    • Theodore Ts'o's avatar
      ext4: display the correct mount option in /proc/mounts for [no]init_itable · fc6cb1cd
      Theodore Ts'o authored 
      

/proc/mounts was showing the mount option [no]init_inode_table when
the correct mount option that will be accepted by parse_options() is
[no]init_itable.

Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
      fc6cb1cd
    • Krzysztof Hałasa's avatar
      USB: cdc-acm: add IDs for Motorola H24 HSPA USB module. · 6abff5dc
      Krzysztof Hałasa authored 
      

Add USB IDs for Motorola H24 HSPA USB module.

Signed-off-by: default avatarKrzysztof Hałasa <khalasa@piap.pl>
Acked-by: default avatarOliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      6abff5dc