Harvey Harrison [Fri, 4 Jul 2008 11:42:24 +0000 (19:42 +0800)]
crypto: camellia - Use kernel-provided bitops, unaligned access helpers
Remove the private implementation of 32-bit rotation and unaligned
access with byteswapping.
As a bonus, fixes sparse warnings:
crypto/camellia.c:602:2: warning: cast to restricted __be32
crypto/camellia.c:603:2: warning: cast to restricted __be32
crypto/camellia.c:604:2: warning: cast to restricted __be32
crypto/camellia.c:605:2: warning: cast to restricted __be32
crypto/camellia.c:710:2: warning: cast to restricted __be32
crypto/camellia.c:711:2: warning: cast to restricted __be32
crypto/camellia.c:712:2: warning: cast to restricted __be32
crypto/camellia.c:713:2: warning: cast to restricted __be32
crypto/camellia.c:714:2: warning: cast to restricted __be32
crypto/camellia.c:715:2: warning: cast to restricted __be32
crypto/camellia.c:716:2: warning: cast to restricted __be32
crypto/camellia.c:717:2: warning: cast to restricted __be32
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Thu, 3 Jul 2008 11:14:02 +0000 (19:14 +0800)]
crypto: talitos - Use proper form for algorithm driver names
The name authenc(hmac(sha1-talitos),cbc(aes-talitos)) is potentially
ambiguous since it could also mean using the generic authenc template
on hmac(sha1-talitos) and cbc(aes-talitos). In general, parentheses
should be reserved for templates that spawn algorithms.
This patches changes it to the form authenc-hmac-sha1-cbc-aes-talitos.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Lee Nipper [Thu, 3 Jul 2008 11:08:46 +0000 (19:08 +0800)]
crypto: talitos - Add support for 3des
This patch adds support for authenc(hmac(sha1),cbc(des3_ede))
to the talitos crypto driver for the Freescale Security Engine.
Some adjustments were made to the scatterlist to link table conversion
to make 3des work for ping -s 1439..1446.
Signed-off-by: Lee Nipper <lee.nipper@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Jeremy Katz [Thu, 3 Jul 2008 11:03:31 +0000 (19:03 +0800)]
crypto: padlock - Make module loading quieter when hardware isn't available
When loading aes or sha256 via the module aliases, the padlock modules
also try to get loaded. Make the error message for them not being
present only be a NOTICE rather than an ERROR so that use of 'quiet'
will suppress the messages
Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Thu, 3 Jul 2008 06:57:30 +0000 (14:57 +0800)]
crypto: tcrpyt - Remove unnecessary kmap/kunmap calls
Noticed by Neil Horman: we are doing unnecessary kmap/kunmap calls
on kmalloced memory. This patch removes them. For the purposes of
testing SG construction, the underlying crypto code already does plenty
of kmap/kunmap calls anyway.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Hohnstaedt [Wed, 25 Jun 2008 06:38:47 +0000 (14:38 +0800)]
crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs
Add support for the hardware crypto engine provided by the NPE C
of the Intel IXP4xx networking processor series.
Supported ciphers: des, des3, aes
and a combination of them with md5 and sha1 hmac
Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Kim Phillips [Mon, 23 Jun 2008 11:50:15 +0000 (19:50 +0800)]
crypto: talitos - Freescale integrated security engine (SEC) driver
Add support for the SEC available on a wide range of PowerQUICC devices,
e.g. MPC8349E, MPC8548E.
This initial version supports authenc(hmac(sha1),cbc(aes)) for use with IPsec.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Neil Horman [Tue, 3 Jun 2008 10:00:16 +0000 (20:00 +1000)]
[CRYPTO] tcrypt: Add self test for des3_ebe cipher operating in cbc mode
Patch to add checking of DES3 test vectors using CBC mode. FIPS-140-2
compliance mandates that any supported mode of operation must include a self
test. This satisfies that requirement for cbc(des3_ede). The included test
vector was generated by me using openssl. Key/IV was generated with the
following command:
openssl enc -des_ede_cbc -P
input and output values were generated by repeating the string "Too many
secrets" a few times over, truncating it to 128 bytes, and encrypting it with
openssl using the aformentioned key. Tested successfully by myself
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Mon, 2 Jun 2008 11:30:38 +0000 (21:30 +1000)]
[CRYPTO] rmd: Use pointer form of endian swapping operations
This patch converts the relevant code in the rmd implementations to
use the pointer form of the endian swapping operations. This allows
certain architectures to generate more optimised code. For example,
on sparc64 this more than halves the CPU cycles on a typical hashing
operation.
Based on a patch by David Miller.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Robert P. J. Day [Mon, 26 May 2008 11:21:07 +0000 (21:21 +1000)]
[CRYPTO] hifn: Simplify code using ARRAY_SIZE() macro
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Mon, 26 May 2008 10:54:34 +0000 (20:54 +1000)]
[CRYPTO] rmd320: Fix endian issues
This patch fixes endian issues making rmd320 work
properly on big-endian machines.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Mon, 26 May 2008 10:33:44 +0000 (20:33 +1000)]
[CRYPTO] rmd256: Fix endian issues
This patch fixes endian issues making rmd256 work
properly on big-endian machines.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Mon, 26 May 2008 10:32:52 +0000 (20:32 +1000)]
[CRYPTO] rmd160: Fix endian issues
This patch fixes endian issues making rmd160 work
properly on big-endian machines.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Tue, 20 May 2008 03:41:48 +0000 (11:41 +0800)]
[CRYPTO] rmd128: Fix endian problems
This patch is based on Sebastian Siewior's patch and
fixes endian issues making rmd128 work properly on
big-endian machines.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Huang Weiyi [Thu, 15 May 2008 06:29:46 +0000 (14:29 +0800)]
[CRYPTO] hifn: Remove duplicated include
Removed duplicated include file <linux/interrupt.h>.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Loc Ho [Wed, 14 May 2008 13:24:51 +0000 (21:24 +0800)]
[CRYPTO] tcrypt: Use asynchronous hash interface
This patch changes tcrypt to use the new asynchronous hash interface
for testing hash algorithm correctness. The speed tests will continue
to use the existing interface for now.
Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Loc Ho [Wed, 14 May 2008 13:23:00 +0000 (21:23 +0800)]
[CRYPTO] cryptd: Add asynchronous hash support
This patch adds asynchronous hash support to crypto daemon.
Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Loc Ho [Wed, 14 May 2008 12:41:47 +0000 (20:41 +0800)]
[CRYPTO] hash: Add asynchronous hash support
This patch adds asynchronous hash and digest support.
Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Fri, 9 May 2008 13:30:27 +0000 (21:30 +0800)]
[CRYPTO] ripemd: Add Kconfig entries for extended RIPEMD hash algorithms
This patch adds Kconfig entries for RIPEMD-256 and RIPEMD-320.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Fri, 9 May 2008 13:29:35 +0000 (21:29 +0800)]
[CRYPTO] tcrypt: Add test vectors for RIPEMD-256 and RIPEMD-320
This patch adds test vectors for RIPEMD-256 and
RIPEMD-320 hash algorithms.
The test vectors are taken from
<http://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Fri, 9 May 2008 13:27:02 +0000 (21:27 +0800)]
[CRYPTO] ripemd: Add support for RIPEMD-256 and RIPEMD-320
This patch adds support for the extended RIPEMD hash
algorithms RIPEMD-256 and RIPEMD-320.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Fri, 9 May 2008 13:25:42 +0000 (21:25 +0800)]
[CRYPTO] ripemd: Put all common RIPEMD values in header file
This patch puts all common RIPEMD values in the
appropriate header file. Initial values and constants
are the same for all variants of RIPEMD.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Thu, 8 May 2008 11:27:47 +0000 (19:27 +0800)]
[CRYPTO] tcrypt: Catch cipher destination memory corruption
Check whether the destination buffer is written to beyond the last
byte contained in the scatterlist.
Also change IDX1 of the cross-page access offsets to a multiple of 4.
This triggers a corruption in the HIFN driver and doesn't seem to
negatively impact other testcases.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:37:29 +0000 (22:37 +0800)]
[HIFN]: Have HW invalidate src and dest descriptors after processing
The descriptors need to be invalidated after processing for ring
cleanup to work properly and to avoid using an old destination
descriptor when the src and cmd descriptors are already set up
and the dst descriptor isn't.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:36:54 +0000 (22:36 +0800)]
[HIFN]: Move command descriptor setup to seperate function
Move command descriptor setup to seperate function as preparation
for the following DMA setup fixes.
Note 1: also fix a harmless typo while moving it: sa_idx is initialized
to dma->resi instead of dma->cmdi.
Note 2: errors from command descriptor setup are not propagated back,
anymore, they can't be handled anyway and all conditions leading
to errors should be checked earlier.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:36:17 +0000 (22:36 +0800)]
[HIFN]: Fix max queue length value
All but the last element of the command and result descriptor rings can be
used for crypto requests, fix HIFN_QUEUE_LENGTH.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:35:47 +0000 (22:35 +0800)]
[HIFN]: Properly initialize ivsize for CBC modes
For combined modes like cbc(aes) the driver is responsible for
initializing ivsize.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:35:07 +0000 (22:35 +0800)]
[HIFN]: Use unique driver names for different algos
When the CryptoAPI instantiates a new algorithm, it performs a lookup
by driver name. Since hifn uses the same name for all modes of one
algorithm, the lookup may return an incorrect algorithm.
Change the name to use <mode>-<algo>-<devicename> to provide unique
names for the different combinations and devices.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:34:27 +0000 (22:34 +0800)]
[HIFN]: Properly handle requests for less than the full scatterlist
The scatterlist may contain more data than the crypto request, causing
an underflow of the remaining byte count while walking the list.
Use the minimum of the scatterlist element size and the remaining byte
count specified in the crypto request to avoid this.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:33:37 +0000 (22:33 +0800)]
[HIFN]: Fix data alignment checks
The check for misalignment of the scatterlist data has two bugs:
- the source buffer doesn't need to be aligned at all
- the destination buffer and its size needs to be aligned to a multiple
of 4, not to the crypto alg blocksize
Introduce symbolic constant for destination buffer alignment requirements,
use it instead of the crypto alg blocksize and remove the unnecessary
checks for source buffer alignment and change cra_alignmask to zero.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:32:28 +0000 (22:32 +0800)]
[HIFN]: Handle ablkcipher_walk errors
ablkcipher_walk may return a negative error value, handle this properly
instead of treating it as a huge number of scatter-gather elements.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:31:35 +0000 (22:31 +0800)]
[HIFN]: Indicate asynchronous processing to crypto API
hifn_setup_crypto() needs to return -EINPROGRESS on success to indicate
asynchronous processing to the crypto API. This also means it must not
return the errno code returned by hifn_process_queue(), if any.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:29:42 +0000 (22:29 +0800)]
[HIFN]: Remove printk_ratelimit() for debugging printk
Without debugging this spams the log with "printk: N messages surpressed"
without any actual messages on error. With debugging its more useful to
always see the message.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Patrick McHardy [Wed, 7 May 2008 14:28:27 +0000 (22:28 +0800)]
[HIFN]: Endianess fixes
HIFN uses little-endian by default, move cpu_to_le32 conversion to hifn_write_0/
hifn_write_1, add sparse annotations and fix an invalid endian conversion in
hifn_setup_src_desc.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 7 May 2008 14:19:38 +0000 (22:19 +0800)]
[CRYPTO] tcrpyt: Get rid of change log in source
Change logs should be kept in source control systems, not the source.
This patch removes the change log from tcrpyt to stop people from
extending it any more.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Wed, 7 May 2008 14:17:37 +0000 (22:17 +0800)]
[CRYPTO] ripemd: Add Kconfig entries for RIPEMD hash algorithms
This patch adds Kconfig entries for RIPEMD-128 and RIPEMD-160.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Wed, 7 May 2008 14:16:36 +0000 (22:16 +0800)]
[CRYPTO] tcrypt: Add test vectors for RIPEMD-128 and RIPEMD-160
This patch adds test vectors for RIPEMD-128 and
RIPEMD-160 hash algorithms and digests (HMAC).
The test vectors are taken from ISO:IEC 10118-3 (2004)
and RFC2286.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Adrian-Ken Rueegsegger [Wed, 7 May 2008 14:14:10 +0000 (22:14 +0800)]
[CRYPTO] ripemd: Add support for RIPEMD hash algorithms
This patch adds support for RIPEMD-128 and RIPEMD-160
hash algorithms.
Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Wed, 7 May 2008 13:10:13 +0000 (21:10 +0800)]
[CRYPTO] cryptd: Fix EINPROGRESS notification context
The EINPROGRESS notifications should be done just like the final
call-backs, i.e., with BH off. This patch fixes the call in cryptd
since previously it was called with BH on.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Thu, 10 Jul 2008 09:42:36 +0000 (17:42 +0800)]
crypto: chainiv - Invoke completion function
When chainiv postpones requests it never calls their completion functions.
This causes symptoms such as memory leaks when IPsec is in use.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Linus Torvalds [Wed, 9 Jul 2008 21:16:23 +0000 (14:16 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/cxgb3: Fix regression caused by class_device -> device conversion
Linus Torvalds [Wed, 9 Jul 2008 04:48:26 +0000 (21:48 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
[PATCH] ocfs2/dlm: Fixes oops in dlm_new_lockres()
Vitaly Bordug [Wed, 9 Jul 2008 03:13:38 +0000 (13:13 +1000)]
powerpc: Add missing reference to coherent_dma_mask
There is dma_mask in of_device upon of_platform_device_create()
but we don't actually set coherent_dma_mask. This may cause weird
behavior of USB subsystem using of_device USB host drivers.
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 9 Jul 2008 01:10:51 +0000 (18:10 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: tcrypt - Fix memory leak in test_cipher
Daniel Guilak [Tue, 8 Jul 2008 22:02:06 +0000 (15:02 -0700)]
kernel/printk.c: Made printk_recursion_bug_msg static.
Signed-off-by: Daniel Guilak <daniel@danielguilak.com>
Acked-by: Josh Triplett <josh@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Steve Wise [Tue, 8 Jul 2008 21:40:05 +0000 (14:40 -0700)]
RDMA/cxgb3: Fix regression caused by class_device -> device conversion
The change to iwch_provider.c in commit
f4e91eb4 ("IB: convert struct
class_device to struct device") undid the fix done in commit
7f049f2f
("RDMA/cxgb3: Hold rtnl_lock() around ethtool get_drvinfo call"). It
removed the calls to rtnl_lock() that serialized the iw_cxgb3 ethtool
ops calls into the cxgb3 driver. This locking is needed to avoid
messing up the internal state of the cxgb3 driver.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Takashi Iwai [Tue, 8 Jul 2008 16:41:17 +0000 (18:41 +0200)]
Fix broken fix for fsl-diu-db
On 2.6.26-rc9, the commit
05946bce839b4fed5442dbfab77060fb75e051f3
("fsl_diu_fb: fix build with CONFIG_PM=y, plus fix some warnings")
breaks its previous fix
f969c5672b16b857e5231ad3c78f08d8ef3305aa
("fsl-diu-db: compile fix")
This patch reverts the broken part.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 8 Jul 2008 19:40:57 +0000 (12:40 -0700)]
Merge branch 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
SUNRPC: Fix an rpcbind breakage for the case of IPv6 lookups
SUNRPC: Fix a double-free in rpcbind
NFS: Fix readdir cache invalidation
Linus Torvalds [Tue, 8 Jul 2008 19:40:19 +0000 (12:40 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Fix 32bit kernels on R4k with 128 byte cache line size
[MIPS] Atlas, decstation: Fix section mismatches triggered by defconfigs
Jeff Mahoney [Tue, 8 Jul 2008 18:37:06 +0000 (14:37 -0400)]
reiserfs: discard prealloc in reiserfs_delete_inode
With the removal of struct file from the xattr code,
reiserfs_file_release() isn't used anymore, so the prealloc isn't
discarded. This causes hangs later down the line.
This patch adds it to reiserfs_delete_inode. In most cases it will be a
no-op due to it already having been called, but will avoid hangs with
xattrs.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Trond Myklebust [Tue, 1 Jul 2008 19:20:55 +0000 (15:20 -0400)]
SUNRPC: Fix an rpcbind breakage for the case of IPv6 lookups
Now that rpcb_next_version has been split into an IPv4 version and an IPv6
version, we Oops when rpcb_call_async attempts to look up the IPv6-specific
RPC procedure in rpcb_next_version.
Fix the Oops simply by having rpcb_getport_async pass the correct RPC
procedure as an argument.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Mon, 7 Jul 2008 16:18:52 +0000 (12:18 -0400)]
SUNRPC: Fix a double-free in rpcbind
It is wrong to be freeing up the rpcbind arguments if the call to
rpcb_call_async() fails, since they should already have been freed up by
rpcb_map_release().
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Mon, 7 Jul 2008 17:26:10 +0000 (13:26 -0400)]
NFS: Fix readdir cache invalidation
invalidate_inode_pages2_range() takes page offset arguments, not byte
ranges.
Another thought is that individual pages might perhaps get evicted by VM
pressure, in which case we might perhaps want to re-read not only the
evicted page, but all subsequent pages too (in case the server returns
more/less data per page so that the alignment of the next entry
changes). We should therefore remove the condition that we only do this on
page->index==0.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Thomas Bogendoerfer [Tue, 8 Jul 2008 12:46:34 +0000 (14:46 +0200)]
[MIPS] Fix 32bit kernels on R4k with 128 byte cache line size
The generated copy_page for R4k CPU with a 128 byte cache line size used
Create Dirty Exclusive cache line operations even if only part of the
cache line was filled. This change avoids generating cache operations,
if only part of the cache line size is copied in one loop. It also
increases the maxmimum loop size, because the generated code even fits
into the available space for r4k CPUs with 128 byte cache line size.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Shane McDonald [Sat, 5 Jul 2008 23:19:42 +0000 (17:19 -0600)]
[MIPS] Atlas, decstation: Fix section mismatches triggered by defconfigs
Resolve these mismatches by defining affected functions with the __cpuinit
attribute, rather than __init.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Tue, 8 Jul 2008 18:19:11 +0000 (11:19 -0700)]
Merge git://git./linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
it8213: fix return value in it8213_init_one()
palm_bk3710: fix IDECLK period calculation
ide: add __ide_default_irq() inline helper
Bartlomiej Zolnierkiewicz [Tue, 8 Jul 2008 17:27:23 +0000 (19:27 +0200)]
it8213: fix return value in it8213_init_one()
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Sergei Shtylyov [Tue, 8 Jul 2008 17:27:22 +0000 (19:27 +0200)]
palm_bk3710: fix IDECLK period calculation
The driver uses completely bogus rounding formula for calculating period from
the IDECLK frequency which gives one-off period values (e.g. 11 ns with 100 MHz
IDECLK) which in turn can lead to overclocked IDE transfer timings. Actually,
rounding is just wrong in this case, so use a mere division for a safe result.
While at it, also:
- give 'ide_palm_clk' variable a more suitable name;
- get rid of the useless 'ideclkp' variable;
- drop the LISP stype 'p' postfix from the 'clkp' variable's name. :-)
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: mcherkashin@ru.mvista.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Bartlomiej Zolnierkiewicz [Tue, 8 Jul 2008 17:27:22 +0000 (19:27 +0200)]
ide: add __ide_default_irq() inline helper
Add __ide_default_irq() inline helper and use it instead of
ide_default_irq() in ide-probe.c and ns87415.c (all host drivers
except IDE PCI ones always setup hwif->irq so it is enough to
check only for I/O bases 0x1f0 and 0x170).
This fixes post-2.6.25 regression since ide_default_irq()
define could shadow ide_default_irq() inline.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Linus Torvalds [Tue, 8 Jul 2008 16:29:34 +0000 (09:29 -0700)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] protect _PAGE_SPECIAL bit against mprotect
David Gibson [Tue, 8 Jul 2008 05:58:16 +0000 (15:58 +1000)]
Correct hash flushing from huge_ptep_set_wrprotect()
As Andy Whitcroft recently pointed out, the current powerpc version of
huge_ptep_set_wrprotect() has a bug. It just calls ptep_set_wrprotect()
which in turn calls pte_update() then hpte_need_flush() with the 'huge'
argument set to 0. This will cause hpte_need_flush() to flush the wrong
hash entries (of any). Andy's fix for this is already in the powerpc
tree as commit
016b33c4958681c24056abed8ec95844a0da80a3.
I have confirmed this is a real bug, not masked by some other
synchronization, with a new testcase for libhugetlbfs. A process write
a (MAP_PRIVATE) hugepage mapping, fork(), then alter the mapping and
have the child incorrectly see the second write.
Therefore, this should be fixed for 2.6.26, and for the stable tree.
Here is a suitable patch for 2.6.26, which I think will also be suitable
for the stable tree (neither of the headers in question has been changed
much recently).
It is cut down slighlty from Andy's original version, in that it does
not include a 32-bit version of huge_ptep_set_wrprotect(). Currently,
hugepages are not supported on any 32-bit powerpc platform. When they
are, a suitable 32-bit version can be added - the only 32-bit hardware
which supports hugepages does not use the conventional hashtable MMU and
so will have different needs anyway.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Tue, 8 Jul 2008 09:31:06 +0000 (11:31 +0200)]
[S390] protect _PAGE_SPECIAL bit against mprotect
Stop mprotect's pte_modify from wiping out the s390 pte_special bit, which
caused oops thereafter when vm_normal_page thought X's abnormal was normal.
Debugged-by: Ryan Hope <rmh3093@gmail.com>
Debugged-by: Zan Lynx <zlynx@acm.org>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Darren Jenkins [Tue, 8 Jul 2008 07:51:44 +0000 (15:51 +0800)]
crypto: tcrypt - Fix memory leak in test_cipher
Coverity CID: 2306 & 2307 RESOURCE_LEAK
In the second for loop in test_cipher(), data is allocated space with
kzalloc() and is only ever freed in an error case.
Looking at this loop, data is written to this memory but nothing seems
to read from it.
So here is a patch removing the allocation, I think this is the right
fix.
Only compile tested.
Signed-off-by: Darren Jenkins <darrenrjenkins@gmailcom>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Linus Torvalds [Mon, 7 Jul 2008 23:59:43 +0000 (16:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
Revert "PCI: Correct last two HP entries in the bfsort whitelist"
Jesse Barnes [Mon, 7 Jul 2008 16:55:26 +0000 (09:55 -0700)]
Revert "PCI: Correct last two HP entries in the bfsort whitelist"
This reverts commit
a1676072558854b95336c8f7db76b0504e909a0a. It duplicates
the change from
8d64c781f0c5fbfdf8016bd1634506ff2ad1376a and only one should be
applied, otherwise some of the Dell quirks are lost.
Thanks to Tony Camuso for catching this.
Acked-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Sunil Mushran [Mon, 7 Jul 2008 17:06:29 +0000 (10:06 -0700)]
[PATCH] ocfs2/dlm: Fixes oops in dlm_new_lockres()
Patch fixes a race that can result in an oops while adding a
lockres to the dlm lockres tracking list.
Bug introduced by mainline commit
29576f8bb54045be944ba809d4fca1ad77c94165.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Jeff Dike [Mon, 7 Jul 2008 17:36:56 +0000 (13:36 -0400)]
[UML] fix gcc ICEs and unresolved externs
There are various constraints on the use of unit-at-a-time:
- i386 uses no-unit-at-a-time for pre-4.0 (not 4.3)
- x86_64 uses unit-at-a-time always
Uli reported a crash on x86_64 with gcc 4.1.2 with unit-at-a-time,
resulting in commit
c0a18111e571138747a98af18b3a2124df56a0d1
Ingo reported a gcc internal error with gcc 4.3 with no-unit-at-a-timem,
resulting in
22eecde2f9034764a3fd095eecfa3adfb8ec9a98
Benny Halevy is seeing extern inlines not resolved with gcc 4.3 with
no-unit-at-a-time
This patch reintroduces unit-at-a-time for gcc >= 4.0, bringing back the
possibility of Uli's crash. If that happens, we'll debug it.
I started seeing both the internal compiler errors and unresolved
inlines on Fedora 9. This patch fixes both problems, without so far
reintroducing the crash reported by Uli.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Benny Halevy <bhalevy@panasas.com>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 7 Jul 2008 16:24:28 +0000 (09:24 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
can: add sanity checks
fs_enet: restore promiscuous and multicast settings in restart()
ibm_newemac: Fixes entry of short packets
ibm_newemac: Fixes kernel crashes when speed of cable connected changes
pasemi_mac: Access iph->tot_len with correct endianness
ehea: Access iph->tot_len with correct endianness
ehea: fix race condition
ehea: add MODULE_DEVICE_TABLE
ehea: fix might sleep problem
forcedeth: fix lockdep warning on ethtool -s
Add missing skb->dev assignment in Frame Relay RX code
bridge: fix use-after-free in br_cleanup_bridges()
tcp: fix a size_t < 0 comparison in tcp_read_sock
tcp: net/ipv4/tcp.c needs linux/scatterlist.h
libertas: support USB persistence on suspend/resume (resend)
iwlwifi: drop skb silently for Tx request in monitor mode
iwlwifi: fix incorrect 5GHz rates reported in monitor mode
Benjamin Herrenschmidt [Mon, 7 Jul 2008 06:39:50 +0000 (16:39 +1000)]
powerpc: Fix unterminated of_device_id array in legacy_serial.c
A recent patch to legacy_serial.c factored out some code by
using the of_match_node() facility to match a node against
an array of possible matches. However, the patch didn't properly
terminate the array causing potential crashes in cases where no
match is found. In addition, the name of the array was poorly
chosen for a static symbol making debugging harder.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 23:43:12 +0000 (16:43 -0700)]
vsprintf: add support for '%pS' and '%pF' pointer formats
They print out a pointer in symbolic format, if possible (ie using
symbolic KALLSYMS information). The '%pS' format is for regular direct
pointers (which can point to data or code and that you find on the stack
during backtraces etc), while '%pF' is for C function pointer types.
On most architectures, the two mean exactly the same thing, but some
architectures use an indirect pointer for C function pointers, where the
function pointer points to a function descriptor (which in turn contains
the actual pointer to the code). The '%pF' code automatically does the
appropriate function descriptor dereference on such architectures.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 23:24:57 +0000 (16:24 -0700)]
vsprintf: add infrastructure support for extended '%p' specifiers
This expands the kernel '%p' handling with an arbitrary alphanumberic
specifier extension string immediately following the '%p'. Right now
it's just being ignored, but the next commit will start adding some
specific pointer type extensions.
NOTE! The reason the extension is appended to the '%p' is to allow
minimal gcc type checking: gcc will still see the '%p' and will check
that the argument passed in is indeed a pointer, and yet will not
complain about the extended information that gcc doesn't understand
about (on the other hand, it also won't actually check that the pointer
type and the extension are compatible).
Alphanumeric characters were chosen because there is no sane existing
use for a string format with a hex pointer representation immediately
followed by alphanumerics (which is what such a format string would have
traditionally resulted in).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 23:16:15 +0000 (16:16 -0700)]
vsprintf: split out '%p' handling logic
The actual code is the same, just split out into a helper function.
This makes it easier to read, and allows for simple future extension
of %p handling.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 23:06:25 +0000 (16:06 -0700)]
vsprintf: split out '%s' handling logic
The actual code is the same, just split out into a helper function.
This makes it easier to read, and allows for future sharing of the
string code.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 18:16:23 +0000 (11:16 -0700)]
Merge branch 'kvm-updates-2.6.26' of git://git./linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: IOAPIC: Fix level-triggered irq injection hang
x86: KVM guest: Add memory clobber to hypercalls
Philipp Zabel [Sat, 5 Jul 2008 23:15:34 +0000 (01:15 +0200)]
pxamci: fix byte aligned DMA transfers
The pxa27x DMA controller defaults to 64-bit alignment. This caused
the SCR reads to fail (and, depending on card type, error out) when
card->raw_scr was not aligned on a 8-byte boundary.
For performance reasons all scatter-gather addresses passed to
pxamci_request should be aligned on 8-byte boundaries, but if
this can't be guaranteed, byte aligned DMA transfers in the
have to be enabled in the controller to get correct behaviour.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 6 Jul 2008 17:27:25 +0000 (10:27 -0700)]
Revert "USB: don't explicitly reenable root-hub status interrupts"
This reverts commit
e872154921a6b5256a3c412dd69158ac0b135176.
Andrey Borzenkov reports that it resulted in a totally hung machine for
him when loading the OHCI driver. Extensive netconsole capture with
SysRq output shows that modprobe gets stuck in ohci_hub_status_data()
when probing and enabling the OHCI controller, see for example
http://lkml.org/lkml/2008/7/5/236
for an analysis.
The problem appears to be an interrupt flood triggered by the commit
that gets reverted, and Andrey confirmed that the revert makes things
work for him again.
Reported-and-tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark McLoughlin [Fri, 4 Jul 2008 17:23:15 +0000 (18:23 +0100)]
KVM: IOAPIC: Fix level-triggered irq injection hang
The "remote_irr" variable is used to indicate an interrupt
which has been received by the LAPIC, but not acked.
In our EOI handler, we unset remote_irr and re-inject the
interrupt if the interrupt line is still asserted.
However, we do not set remote_irr here, leading to a
situation where if kvm_ioapic_set_irq() is called, then we go
ahead and call ioapic_service(). This means that IRR is
re-asserted even though the interrupt is currently in service
(i.e. LAPIC IRR is cleared and ISR/TMR set)
The issue with this is that when the currently executing
interrupt handler finishes and writes LAPIC EOI, then TMR is
unset and EOI sent to the IOAPIC. Since IRR is now asserted,
but TMR is not, then when the second interrupt is handled,
no EOI is sent and if there is any pending interrupt, it is
not re-injected.
This fixes a hang only seen while running mke2fs -j on an
8Gb virtio disk backed by a fully sparse raw file, with
aliguori "avoid fragmented virtio-blk transfers by copying"
changes.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Anthony Liguori [Thu, 3 Jul 2008 16:02:36 +0000 (19:02 +0300)]
x86: KVM guest: Add memory clobber to hypercalls
Hypercalls can modify arbitrary regions of memory. Make sure to indicate this
in the clobber list. This fixes a hang when using KVM_GUEST kernel built with
GCC 4.3.0.
This was originally spotted and analyzed by Marcelo.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Oliver Hartkopp [Sun, 6 Jul 2008 06:38:43 +0000 (23:38 -0700)]
can: add sanity checks
Even though the CAN netlayer only deals with CAN netdevices, the
netlayer interface to the userspace and to the device layer should
perform some sanity checks.
This patch adds several sanity checks that mainly prevent userspace apps
to send broken content into the system that may be misinterpreted by
some other userspace application.
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Acked-by: Andre Naujoks <nautsch@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 5 Jul 2008 22:53:22 +0000 (15:53 -0700)]
Linux 2.6.26-rc9
Andrew Morton [Sat, 5 Jul 2008 08:02:01 +0000 (01:02 -0700)]
Fix pagemap_read() use of struct mm_walk
Fix some issues in pagemap_read noted by Alexey:
- initialize pagemap_walk.mm to "mm" , so the code starts working as
advertised
- initialize ->private to "&pm" so it wouldn't immediately oops in
pagemap_pte_hole()
- unstatic struct pagemap_walk, so two threads won't fsckup each other
(including those started by root, including flipping ->mm when you don't
have permissions)
- pagemap_read() contains two calls to ptrace_may_attach(), second one
looks unneeded.
- avoid possible kmalloc(0) and integer wraparound.
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Personally, I'd just remove the functionality entirely - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eduard - Gabriel Munteanu [Sat, 5 Jul 2008 09:14:23 +0000 (12:14 +0300)]
Move _RET_IP_ and _THIS_IP_ to include/linux/kernel.h
These two macros are useful beyond lock debugging. Moved definitions from
include/linux/debug_locks.h to include/linux/kernel.h, so code that needs
them does not have to include the former, which would have been a less
intuitive choice of a header.
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 5 Jul 2008 20:09:31 +0000 (13:09 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
softlockup: print a module list on being stuck
Linus Torvalds [Sat, 5 Jul 2008 20:08:38 +0000 (13:08 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64
x86 ACPI: normalize segment descriptor register on resume
Andrew Morton [Sat, 5 Jul 2008 19:29:05 +0000 (12:29 -0700)]
Fix clear_refs_write() use of struct mm_walk
Don't use a static entry, so as to prevent races during concurrent use
of this function.
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 5 Jul 2008 20:06:19 +0000 (13:06 -0700)]
Merge git://git./linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
ide: ide_unregister() locking bugfix
ide: ide_unregister() warm-plug bugfix
ide: fix hwif->gendev refcounting
Tejun Heo [Sat, 5 Jul 2008 04:10:50 +0000 (13:10 +0900)]
ahci: give another shot at clearing all bits in irq_stat
Commit
ea0c62f7cf70f13a67830471b613337bd0c9a62e tried to clear all
bits in irq_stat but it didn't actually achieve that as irq_stat was
anded with port_map right after read. This patch makes ahci driver
always use the unmasked value to clear irq_status.
While at it, add explanation on the peculiarities of ahci IRQ
clearing.
This was spotted by Linus Torvalds.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000 (20:30 +0200)]
ide: ide_unregister() locking bugfix
Holding ide_lock for ide_release_dma_engine() call is unnecessary
and triggers WARN_ON(irqs_disabled()) in dma_free_coherent().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000 (20:30 +0200)]
ide: ide_unregister() warm-plug bugfix
Fix ide_unregister() to work for ports with no devices attached to them.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000 (20:30 +0200)]
ide: fix hwif->gendev refcounting
class->dev_release is called by device_release() iff dev->release
is not present so ide_port_class_release() is never called and the
last hwif->gendev reference is not dropped.
Fix it by removing ide_port_class_release() and get_device() call
from ide_register_port() (device_create_drvdata() takes a hwif->gendev
reference anyway).
This patch fixes hang on wait_for_completion(&hwif->gendev_rel_comp)
in ide_unregister() reported by Pavel Machek.
Cc: Pavel Machek <pavel@suse.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Arjan van de Ven [Mon, 16 Jun 2008 22:51:08 +0000 (15:51 -0700)]
softlockup: print a module list on being stuck
Most places in the kernel that go BUG: print a module list
(which is very useful for doing statistics and finding patterns),
however the softlockup detector does not do this yet.
This patch adds the one line change to fix this gap.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Sat, 5 Jul 2008 06:42:45 +0000 (08:42 +0200)]
Merge branch 'x86/s2ram-fix' into x86/urgent
Rafael J. Wysocki [Fri, 4 Jul 2008 22:05:30 +0000 (00:05 +0200)]
x86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64
Since the trampoline code is now used for ACPI resume from suspend to RAM,
the trampoline page tables have to be fixed up during boot not only on SMP
systems, but also on UP systems that use the trampoline.
Reference: http://bugzilla.kernel.org/show_bug.cgi?id=10923
Reported-by: Dionisus Torimens <djtm@gmx.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
H. Peter Anvin [Tue, 24 Jun 2008 21:03:48 +0000 (23:03 +0200)]
x86 ACPI: normalize segment descriptor register on resume
Some Dell laptops enter resume with apparent garbage in the segment
descriptor registers (almost certainly the result of a botched
transition from protected to real mode.) The only way to clean that
up is to enter protected mode ourselves and clean out the descriptor
registers.
This fixes resume on Dell XPS M1210 and Dell D620.
Reference: http://bugzilla.kernel.org/show_bug.cgi?id=10927
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
David Rientjes [Fri, 4 Jul 2008 19:24:13 +0000 (12:24 -0700)]
mempolicy: mask off internal flags for userspace API
Flags considered internal to the mempolicy kernel code are stored as part
of the "flags" member of struct mempolicy.
Before exposing a policy type to userspace via get_mempolicy(), these
internal flags must be masked. Flags exposed to userspace, however,
should still be returned to the user.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 4 Jul 2008 17:46:46 +0000 (10:46 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
xen: fix address truncation in pte mfn<->pfn conversion
arch/x86/mm/init_64.c: early_memtest(): fix types
x86: fix Intel Mac booting with EFI
Pierre Ossman [Fri, 4 Jul 2008 10:51:20 +0000 (12:51 +0200)]
mmc: don't use DMA on newer ENE controllers
Even the newer ENE controllers have bugs in their DMA engine that make
it too dangerous to use. Disable it until someone has figured out under
which conditions it corrupts data.
This has caused problems at least once, and can be found as bug report
10925 in the kernel bugzilla.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Jackson [Fri, 4 Jul 2008 17:00:09 +0000 (10:00 -0700)]
doc: document the relax_domain_level kernel boot argument
Document the kernel boot parameter: relax_domain_level=.
Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Fri, 4 Jul 2008 17:00:07 +0000 (10:00 -0700)]
devcgroup: fix odd behaviour when writing 'a' to devices.allow
# cat /devcg/devices.list
a *:* rwm
# echo a > devices.allow
# cat /devcg/devices.list
a *:* rwm
a 0:0 rwm
This is odd and maybe confusing. With this patch, writing 'a' to
devices.allow will add 'a *:* rwm' to the whitelist.
Also a few fixes and updates to the document.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rajiv Andrade [Fri, 4 Jul 2008 17:00:06 +0000 (10:00 -0700)]
Update MAINTAINERS file for the TPM device driver
Acked-By: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: <zohar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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