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* [PATCH] ipmi: doc updatesCorey Minyard2005-06-24
| | | | | | | | | This cleans up the IPMI documentation to fix some problems and make it more accurate for the current drivers. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make reiserfs BUG on too big transactionJan Kara2005-06-24
| | | | | | | | | | Make reiserfs BUG() when somebody tries to start a larger transaction than it's allowed (currently the code just silently deadlocks). Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Chris Mason <mason@suse.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 8 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 7Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 7 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 6 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 5Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 5 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 4Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 4 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 3Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 3 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 2 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 1Chris Zankel2005-06-24
| | | | | | | | | The attached patches provides part 1 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xtensa: Tensilica Xtensa CPU arch maintainer recordChris Zankel2005-06-24
| | | | | | | | | | | | | | | | | | | Start of a patch series which adds support for the xtensa architecture to Linux. The Xtensa architecture is highly configurable and usually buried inside an SOC device. So, if you buy a new printer, digital camera, or cell phone, there is a chance that there is an Xtensa inside even though you don't know it (sometimes as a small audio-engine or as a control CPU). Linux hasn't been adopted widely with Xtensa yet, but with Linux growing in the embedded space, I am sure it will become much more important. The attached patch supplies the maintainer record for an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] quota: reiserfs: improve quota credit estimatesJan Kara2005-06-24
| | | | | | | | | | Use improved credits estimates for quota operations. Also reserve space for a quota operation in a transaction only if filesystem was mounted with some quota option. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] quota: ext3: Improve quota credit estimatesJan Kara2005-06-24
| | | | | | | | | | Use improved credits estimates for quota operations. Also reserve a space for a quota operation in a transaction only if filesystem was mounted with some quota options. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] quota: improve credits estimatesJan Kara2005-06-24
| | | | | | | | | | | Improve estimates on the number of needed credits for quota transaction. Now we distinguish blocks that might need to be allocated and blocks that only need to be rewritten. Also we distinguish deleting of a quota structure and creating of a new one. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reiserfs: add checking of journal_begin() return valueJan Kara2005-06-24
| | | | | | | | | Check return values of journal_begin() and journal_end() in the quota code for reiserfs. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pass iocb to dio_iodone_tChristoph Hellwig2005-06-24
| | | | | | | | | XFS will have to look at iocb->private to fix aio+dio. No other filesystem is using the blockdev_direct_IO* end_io callback. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] eCryptfs: export user key typeMichael Halcrow2005-06-24
| | | | | | | | | | Export this symbol to GPL modules for eCryptfs: an out-of-tree GPL'ed filesystem. Signed off by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Keys: Make request-key create an authorisation keyDavid Howells2005-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch makes the following changes: (1) There's a new special key type called ".request_key_auth". This is an authorisation key for when one process requests a key and another process is started to construct it. This type of key cannot be created by the user; nor can it be requested by kernel services. Authorisation keys hold two references: (a) Each refers to a key being constructed. When the key being constructed is instantiated the authorisation key is revoked, rendering it of no further use. (b) The "authorising process". This is either: (i) the process that called request_key(), or: (ii) if the process that called request_key() itself had an authorisation key in its session keyring, then the authorising process referred to by that authorisation key will also be referred to by the new authorisation key. This means that the process that initiated a chain of key requests will authorise the lot of them, and will, by default, wind up with the keys obtained from them in its keyrings. (2) request_key() creates an authorisation key which is then passed to /sbin/request-key in as part of a new session keyring. (3) When request_key() is searching for a key to hand back to the caller, if it comes across an authorisation key in the session keyring of the calling process, it will also search the keyrings of the process specified therein and it will use the specified process's credentials (fsuid, fsgid, groups) to do that rather than the calling process's credentials. This allows a process started by /sbin/request-key to find keys belonging to the authorising process. (4) A key can be read, even if the process executing KEYCTL_READ doesn't have direct read or search permission if that key is contained within the keyrings of a process specified by an authorisation key found within the calling process's session keyring, and is searchable using the credentials of the authorising process. This allows a process started by /sbin/request-key to read keys belonging to the authorising process. (5) The magic KEY_SPEC_*_KEYRING key IDs when passed to KEYCTL_INSTANTIATE or KEYCTL_NEGATE will specify a keyring of the authorising process, rather than the process doing the instantiation. (6) One of the process keyrings can be nominated as the default to which request_key() should attach new keys if not otherwise specified. This is done with KEYCTL_SET_REQKEY_KEYRING and one of the KEY_REQKEY_DEFL_* constants. The current setting can also be read using this call. (7) request_key() is partially interruptible. If it is waiting for another process to finish constructing a key, it can be interrupted. This permits a request-key cycle to be broken without recourse to rebooting. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Keys: Use RCU to manage session keyring pointerDavid Howells2005-06-24
| | | | | | | | | | | | The attached patch uses RCU to manage the session keyring pointer in struct signal_struct. This means that searching need not disable interrupts and get a the sighand spinlock to access this pointer. Furthermore, by judicious use of rcu_read_(un)lock(), this patch also avoids the need to take and put refcounts on the session keyring itself, thus saving on even more atomic ops. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Keys: Pass session keyring to call_usermodehelper()David Howells2005-06-24
| | | | | | | | | | | The attached patch makes it possible to pass a session keyring through to the process spawned by call_usermodehelper(). This allows patch 3/3 to pass an authorisation key through to /sbin/request-key, thus permitting better access controls when doing just-in-time key creation. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] keys: Discard key spinlock and use RCU for key payloadDavid Howells2005-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch changes the key implementation in a number of ways: (1) It removes the spinlock from the key structure. (2) The key flags are now accessed using atomic bitops instead of write-locking the key spinlock and using C bitwise operators. The three instantiation flags are dealt with with the construction semaphore held during the request_key/instantiate/negate sequence, thus rendering the spinlock superfluous. The key flags are also now bit numbers not bit masks. (3) The key payload is now accessed using RCU. This permits the recursive keyring search algorithm to be simplified greatly since no locks need be taken other than the usual RCU preemption disablement. Searching now does not require any locks or semaphores to be held; merely that the starting keyring be pinned. (4) The keyring payload now includes an RCU head so that it can be disposed of by call_rcu(). This requires that the payload be copied on unlink to prevent introducing races in copy-down vs search-up. (5) The user key payload is now a structure with the data following it. It includes an RCU head like the keyring payload and for the same reason. It also contains a data length because the data length in the key may be changed on another CPU whilst an RCU protected read is in progress on the payload. This would then see the supposed RCU payload and the on-key data length getting out of sync. I'm tempted to drop the key's datalen entirely, except that it's used in conjunction with quota management and so is a little tricky to get rid of. (6) Update the keys documentation. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: fix seccomp with 32-bit userlandAndrea Arcangeli2005-06-24
| | | | | | | | | | | | The seccomp check has to happen when entering the syscall and not when exiting it or regs->gpr[0] contains garabge during signal handling in ppc64_rt_sigreturn (this actually might be a bug too, but an orthogonal one, since we really have to run the check before invoking the syscall and not after it). Signed-off-by: Andrea Arcangeli <andrea@cpushare.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds2005-06-23
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| * [IA64] Fix pfn_to_nid() so the kernel compiles again for !CONFIG_DISCONTIGMEM.David Mosberger-Tang2005-06-23
| | | | | | | | | | Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2005-06-23
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| * | [TCP]: Add Scalable TCP congestion control module.John Heffner2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements Tom Kelly's Scalable TCP congestion control algorithm for the modular framework. The algorithm has some nice scaling properties, and has been used a fair bit in research, though is known to have significant fairness issues, so it's not really suitable for general purpose use. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add H-TCP congestion control module.Baruch Even2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | H-TCP is a congestion control algorithm developed at the Hamilton Institute, by Douglas Leith and Robert Shorten. It is extending the standard Reno algorithm with mode switching is thus a relatively simple modification. H-TCP is defined in a layered manner as it is still a research platform. The basic form includes the modification of beta according to the ratio of maxRTT to min RTT and the alpha=2*factor*(1-beta) relation, where factor is dependant on the time since last congestion. The other layers improve convergence by adding appropriate factors to alpha. The following patch implements the H-TCP algorithm in it's basic form. Signed-Off-By: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add TCP Vegas congestion control module.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | TCP Vegas code modified for the new TCP infrastructure. Vegas now uses microsecond resolution timestamps for better estimation of performance over higher speed links. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add TCP Hybla congestion control module.Daniele Lacamera2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TCP Hybla congestion avoidance. - "In heterogeneous networks, TCP connections that incorporate a terrestrial or satellite radio link are greatly disadvantaged with respect to entirely wired connections, because of their longer round trip times (RTTs). To cope with this problem, a new TCP proposal, the TCP Hybla, is presented and discussed in the paper[1]. It stems from an analytical evaluation of the congestion window dynamics in the TCP standard versions (Tahoe, Reno, NewReno), which suggests the necessary modifications to remove the performance dependence on RTT.[...]"[1] [1]: Carlo Caini, Rosario Firrincieli, "TCP Hybla: a TCP enhancement for heterogeneous networks", International Journal of Satellite Communications and Networking Volume 22, Issue 5 , Pages 547 - 566. September 2004. Signed-off-by: Daniele Lacamera (root at danielinux.net)net Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add High Speed TCP congestion control module.John Heffner2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Sally Floyd's high speed TCP congestion control. This is useful for comparison and research. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add TCP Westwood congestion control module.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is the existing 2.6.12 Westwood code moved from tcp_input to the new congestion framework. A lot of the inline functions have been eliminated to try and make it clearer. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add TCP BIC congestion control module.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TCP BIC congestion control reworked to use the new congestion control infrastructure. This version is more up to date than the BIC code in 2.6.12; it incorporates enhancements from BICTCP 1.1, to handle low latency links. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Update sysctl and congestion control documentation.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Update the documentation to remove the old sysctl values and include the new congestion control infrastructure. Includes changes to tcp.txt by Ian McDonald. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Report congestion control algorithm in tcp_diag.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | Enhancement to the tcp_diag interface used by the iproute2 ss command to report the tcp congestion control being used by a socket. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Change tcp_diag to use the existing __RTA_PUT() macro.Stephen Hemminger2005-06-23
| | | | | | | | | | | | | | | Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: Add pluggable congestion control algorithm infrastructure.Stephen Hemminger2005-06-23
| |/ | | | | | | | | | | | | | | | | | | Allow TCP to have multiple pluggable congestion control algorithms. Algorithms are defined by a set of operations and can be built in or modules. The legacy "new RENO" algorithm is used as a starting point and fallback. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-06-23
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| * | [PATCH] ARM: 2730/1: S3C2410 default configuration updateBen Dooks2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Add support for the DM9000 and bring default configuration up-to-date with the latest 2.6.12 kernel release Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM: 2729/1: DM9000 platform support for S3C2410 machines (BAST, VR1000)Ben Dooks2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Add platform_device information for DM9000 chip(s) on the Simtec BAST and the VR1000 board. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM: 2728/1: S3C2410 - fix constant warning on serial device nameBen Dooks2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Remove warning of casting `const char *` to a `char *` type. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM: 2722/1: remove reliance on udivdi3 for nwfpeNicolas Pitre2005-06-23
| | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM: 2721/1: remove reliance on udivdi3 for pxafb driverNicolas Pitre2005-06-23
| | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds2005-06-23
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| * | [PATCH] Serial: Bugs are not capabilitiesRussell King2005-06-23
| | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] Serial: Mobility's 16550A ports need a helping handRussell King2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | The Mobility 16550A serial ports don't behave the same as standard 16550A ports, and need a helping hand to get them going once the transmitter has drained and been disabled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] Serial: Convert 8250 revision-based bug fixes to bug bitmaskRussell King2005-06-23
| |/ | | | | | | | | | | | | | | | | For some 8250 port types, we used to check the type of the port, and then determine whether the chip revision means the device is buggy. Instead, introduce a bit array, and set the appropriate bit(s) when we discover a buggy device. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] Add removal schedule of register_serial/unregister_serial to ↵Russell King2005-06-23
| | | | | | | | appropriate file
* | [PATCH] better USB_MON dependenciesAdrian Bunk2005-06-23
| | | | | | | | | | | | | | This makes the USB_MON less confusing. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/paulus/ppc64-2.6Linus Torvalds2005-06-23
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| * | [PATCH] Maple powerdown patchDavid Gibson2005-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently reset and powerdown are not implemented on the Maple board, and attempting to do so will (incorrectly return). This implements the proper communication with the service processor, allowing correct reset and powerdown on the Maple board, by communicating with the service processor. If somehow it's unable to communicate with the service processor it will loop forever instead. Note that powerdown on the Maple will power down the CPUs, but not the fans or other board components due to hardware and firmware limitations. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Frank Rowand <frowand@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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