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* [DLM] Fix kref_put oopsPatrick Caulfield2006-11-06
| | | | | | | | | | This patch fixes the recounting on the lockspace kobject. Previously the lockspace was freed while userspace could have had a reference to one of its sysfs files, causing an oops in kref_put. Now the lockspace kfree is moved into the kobject release() function Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Fix OOM error handlingSteven Whitehouse2006-11-06
| | | | | | | Fix the OOM error handling in inode.c where it was possible for a NULL pointer to be dereferenced. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Fix incorrect fs sync behaviour.Steven Whitehouse2006-11-06
| | | | | | | | | | | | This adds a sync_fs superblock operation for GFS2 and removes the journal flush from write_super in favour of sync_fs where it ought to be. This is more or less identical to the way in which ext3 does this. This bug was pointed out by Russell Cattelan <cattelan@redhat.com> Cc: Russell Cattelan <cattelan@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] don't panic needlesslyAlexey Dobriyan2006-11-06
| | | | | | | | First, SLAB_PANIC is unjustified. Second, all error propagating and backing out is in place. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-11-05
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NETLABEL]: Fix build failure. [IPV6]: Give sit driver an appropriate module alias. [IPV6]: Add ndisc_netdev_notifier unregister. [NET]: __alloc_pages() failures reported due to fragmentation [PKTGEN]: TCI endianness fixes [TG3]: Fix 2nd ifup failure on 5752M. [NETFILTER] bug: skb->protocol is already net-endian [NETFILTER] bug: nfulnl_msg_config_mode ->copy_range is 32bit [NETFILTER] bug: NFULA_CFG_QTHRESH uses 32bit [IPV6]: Fix ECN bug on big-endian [IPX]: Annotate and fix IPX checksum [IPX]: Trivial parts of endianness annotations
| * [NETLABEL]: Fix build failure.Paul Moore2006-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > the build with the attached .config failed, make ends with: > ... > : undefined reference to `cipso_v4_sock_getattr' > net/built-in.o: In function `netlbl_socket_getattr': ... It looks like I was stupid and made NetLabel depend on CONFIG_NET and not CONFIG_INET, the patch below should fix this by making NetLabel depend on CONFIG_INET and CONFIG_SECURITY. Please review and apply for 2.6.19. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Give sit driver an appropriate module alias.Patrick McHardy2006-11-05
| | | | | | | | | | | | | | | | | | | | It would be nice to keep things working even with this built as a module, it took me some time to realize my IPv6 tunnel was broken because of the missing sit module. This module alias fixes things until distributions have added an appropriate alias to modprobe.conf. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Add ndisc_netdev_notifier unregister.Dmitry Mishin2006-11-05
| | | | | | | | | | | | | | | | | | If inet6_init() fails later than ndisc_init() call, or IPv6 module is unloaded, ndisc_netdev_notifier call remains in the list and will follows in oops later. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: __alloc_pages() failures reported due to fragmentationLarry Woodman2006-11-05
| | | | | | | | | | | | | | | | | | | | | | We have seen a couple of __alloc_pages() failures due to fragmentation, there is plenty of free memory but no large order pages available. I think the problem is in sock_alloc_send_pskb(), the gfp_mask includes __GFP_REPEAT but its never used/passed to the page allocator. Shouldnt the gfp_mask be passed to alloc_skb() ? Signed-off-by: Larry Woodman <lwoodman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [PKTGEN]: TCI endianness fixesAl Viro2006-11-05
| | | | | | | | | | | | | | open-coded variant there works only for little-endian Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [TG3]: Fix 2nd ifup failure on 5752M.Michael Chan2006-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug reported in: http://bugzilla.kernel.org/show_bug.cgi?id=7438 tg3_close() turns off the PHY if WoL and ASF are both disabled. On the next tg3_open(), some devices such as the 5752M will not be brought up correctly without a PHY reset early in the reset sequence. The PHY clock is needed for some internal MAC blocks to function correctly. This problem is fixed by always resetting the PHY early in tg3_reset_hw() when it is called from tg3_open() or tg3_resume(). tg3_setup_phy() can then be called later in the sequence without the reset_phy parameter set to 1, since the PHY reset is already done. Update version to 3.68. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER] bug: skb->protocol is already net-endianAl Viro2006-11-05
| | | | | | | | | | | | | | | | htons() is not needed (and no, it's not misspelled ntohs() - userland expects net-endian here). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER] bug: nfulnl_msg_config_mode ->copy_range is 32bitAl Viro2006-11-05
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETFILTER] bug: NFULA_CFG_QTHRESH uses 32bitAl Viro2006-11-05
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Fix ECN bug on big-endianAl Viro2006-11-05
| | | | | | | | | | | | | | | | __constant_htons(2<<4) is not a replacement for htonl(2<<20). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPX]: Annotate and fix IPX checksumAl Viro2006-11-05
| | | | | | | | | | | | | | | | | | | | | | | | Calculation of IPX checksum got buggered about 2.4.0. The old variant mangled the packet; that got fixed, but calculation itself got buggered. Restored the correct logics, fixed a subtle breakage we used to have even back then: if the sum is 0 mod 0xffff, we want to return 0, not 0xffff. The latter has special meaning for IPX (cheksum disabled). Observation (and obvious fix) nicked from history of FreeBSD ipx_cksum.c... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPX]: Trivial parts of endianness annotationsAl Viro2006-11-05
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [SPARC]: Fix robust futex syscalls and wire up migrate_pages.David S. Miller2006-11-05
|/ | | | | | | | | | | | | When I added the entries for the robust futex syscall entries, I forgot to bump NR_SYSCALLS. The current situation is error-prone because NR_SYSCALLS lives in entry.S where the system call limit checks are enforced. Move the definition to asm/unistd.h in order to make this mistake much more difficult to make. And wire up sys_migrate_pages since the powerpc folks implemented the compat wrapper for us. Signed-off-by: David S. Miller <davem@davemloft.net>
* Make sure "user->sigpending" count is in syncLinus Torvalds2006-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | The previous commit (45c18b0bb579b5c1b89f8c99f1b6ffa4c586ba08, aka "Fix unlikely (but possible) race condition on task->user access") fixed a potential oops due to __sigqueue_alloc() getting its "user" pointer out of sync with switch_user(), and accessing a user pointer that had been de-allocated on another CPU. It still left another (much less serious) problem, where a concurrent __sigqueue_alloc and swich_user could cause sigqueue_alloc to do signal pending reference counting for a _different_ user than the one it then actually ended up using. No oops, but we'd end up with the wrong signal accounting. Another case of Oleg's eagle-eyes picking up the problem. This is trivially fixed by just making sure we load whichever "user" structure we decide to use (it doesn't matter _which_ one we pick, we just need to pick one) just once. Acked-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Andrew Morton <akpm@osdl.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Fix unlikely (but possible) race condition on task->user accessLinus Torvalds2006-11-04
| | | | | | | | | | | | | | | | | | | | | | There's a possible race condition when doing a "switch_uid()" from one user to another, which could race with another thread doing a signal allocation and looking at the old thread ->user pointer as it is freed. This explains an oops reported by Lukasz Trabinski: http://permalink.gmane.org/gmane.linux.kernel/462241 We fix this by delaying the (reference-counted) freeing of the user structure until the thread signal handler lock has been released, so that we know that the signal allocation has either seen the new value or has properly incremented the reference count of the old one. Race identified by Oleg Nesterov. Cc: Lukasz Trabinski <lukasz@wsisiz.edu.pl> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Andrew Morton <akpm@osdl.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Revert unintentional "volatile" changes in ipc/msg.cLinus Torvalds2006-11-04
| | | | | | | | | | | | | | | | | | | Commit 5a06a363ef48444186f18095ae1b932dddbbfa89 ("[PATCH] ipc/msg.c: clean up coding style") breaks fakeroot on Alpha (variously hangs or oopses), according to a report by Falk Hueffner. The fact that the code seems to rely on compiler access ordering through the use of "volatile" is a pretty certain sign that the code has locking problems, and we should fix those properly and then remove the whole "volatile" entirely. But in the meantime, the movement of "volatile" was unintentional, and should be reverted. Cc: Falk Hueffner <falk@debian.org> Cc: Andrew Morton <akpm@osdl.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] splice: fix problem introduced with inode dietJens Axboe2006-11-04
| | | | | | | | | | | | After the inode slimming patch that unionised i_pipe/i_bdev/i_cdev, it's no longer enough to check for existance of ->i_pipe to verify that this is a pipe. Original patch from Eric Dumazet <dada1@cosmosbay.com> Final solution suggested by Linus. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2006-11-04
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: Remove redundant xattr permission checking
| * JFS: Remove redundant xattr permission checkingDave Kleikamp2006-11-02
| | | | | | | | | | | | | | | | The vfs handles most permissions for setting and retrieving xattrs. This patch removes a redundant and wrong check so that it won't override the correct behavior which is being fixed in the vfs. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2006-11-03
|\ \ | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Let PCI_MULTITHREAD_PROBE depend on BROKEN PCI: Revert "PCI: i386/x86_84: disable PCI resource decode on device disable"
| * | PCI: Let PCI_MULTITHREAD_PROBE depend on BROKENAdrian Bunk2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCI_MULTITHREAD_PROBE is an interesting feature, but in its current state it seems to be more of a trap for users who accidentally enable it. This patch lets PCI_MULTITHREAD_PROBE depend on BROKEN for 2.6.19. The intention is to get this patch reversed in -mm as soon as it's in Linus' tree, and reverse it for 2.6.20 or 2.6.21 after the fallout of in-kernel problems PCI_MULTITHREAD_PROBE causes got fixed. (akpm: I get enough bug reports already) Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: Revert "PCI: i386/x86_84: disable PCI resource decode on device disable"Greg Kroah-Hartman2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 53e4d30dd666d7f83598957ee4a415eefb47c9a6. It was found that it caused unneeded problems (see http://bugzilla.kernel.org/show_bug.cgi?id=7082 for details of one such issue. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2006-11-03
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: use MII hooks only if CONFIG_MII is enabled USB Storage: unusual_devs.h entry for Sony Ericsson P990i USB: xpad: additional USB id's added USB: fix compiler issues with newer gcc versions USB: HID: add blacklist AIRcable USB, little beautification USB: usblp: fix system suspend for some systems USB: failure in usblp's error path usbtouchscreen: use endpoint address from endpoint descriptor USB: sierra: Fix id for Sierra Wireless MC8755 in new table USB: new VID/PID-combos for cp2101 hid-core: big-endian fix fix USB: usb-storage: Unusual_dev update USB: add another sierra wireless device id
| * | | USB: use MII hooks only if CONFIG_MII is enabledDavid Brownell2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix mcs7830 patch The recent mcs7830 update to make the MII support sharable goofed various pre-existing configurations in two ways: - it made the usbnet infrastructure reference MII symbols even when they're not needed in the kernel being built - it didn't enable MII along with the mcs7830 minidriver This patch fixes these two problems. However, there does seem to be a Kconfig reverse dependency bug in that MII gets wrongly enabled in some cases (like USBNET=y and USBNET_MII=n); I think I've noticed that same problem in other situations too. So the result can mean kernels being bloated by stuff that's needlessly enabled ... better than wrongly being disabled, but contributing to bloat. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB Storage: unusual_devs.h entry for Sony Ericsson P990iJan Mate2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | USB Storage: this patch adds support for Sony Ericsson P990i Signed-off-by: Jan Mate <mate@fiit.stuba.sk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: xpad: additional USB id's addedDominic Cerquetti2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding additional USB vendor/product ID's for XBOX pads provided by the XBOX Linux team. Signed-off-by: Dominic Cerquetti <binary1230@yahoo.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: fix compiler issues with newer gcc versionsDavid Brownell2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove complaint from newer GCCs; they don't like forward function declarations except in top-level contexts. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: HID: add blacklist AIRcable USB, little beautificationNaranjo Manuel Francisco2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add AIRcable USBto USB-HID blacklist, makes some little changes things in the Kconfig to make AIRcable USB look as all the rest of drivers. And it removes the readme part that was on Documentation/usb/usb-serial.txt because it is not needed anymore. Signed-off-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: usblp: fix system suspend for some systemsOliver Neukum2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this has been confirmed to fix suspend problems with usblp. Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: failure in usblp's error pathOliver Neukum2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | if urb submission fails due to a transient error here eg. ENOMEM , the driver is dead. This fixes it. Regards Oliver Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | usbtouchscreen: use endpoint address from endpoint descriptorDaniel Ritz2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | use the endpoint address from the endpoint descriptor instead of the hardcoding it to 0x81. at least some ITM based screen use a different address and don't work without this. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Cc: Ralf Lehmann <ralf@lehmann.cc> Cc: J.P. Delport <jpdelport@csir.co.za> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: sierra: Fix id for Sierra Wireless MC8755 in new tableJan Luebbe2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new version of sierra.c has introduced tables for the 1 port and 3 port variants. The device id i added in my last patch needs to be added to the 3 port table. Signed-off-by: Jan Luebbe <jluebbe@lasnet.de> Cc: Kevin Lloyd <linux@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: new VID/PID-combos for cp2101Bjorn Schneider2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 new VID/PID combinations (registered with Silicon Laboratories Inc.) added for devices made by Lipowsky Industrie Elektronik GmbH all using the CP2102 usb-to-serial converter (Baby-JTAG, Baby-LIN, HARP-1). Signed-off-by: Bjorn Schneider <schneider@lipowsky.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | hid-core: big-endian fix fixGrant Grundler2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adam Kropelin had posted 32-bit fix in June 2005 about two weeks after I originally had posted my fixes for big endian support. Adam has a UPS device which reports LINEV using 32-bits. Added comments to describe the limitations of the code. extract() is the same version I posted earlier and tested in user space. Made similar changes to implement() routine. I've written (and will shortly post) a test for implement(). Code tested on C3600 (parisc) with USB keyboard/mouse attached. I've dropped test_implement.c and a few other user space test programs on http://iou.parisc-linux.org/~grundler/tests/ -rw-r--r-- 1 grundler grundler 1750 Oct 18 09:13 test_extract.c -rw-r--r-- 1 grundler grundler 561 Jan 25 2006 test_ffs.c -rw-r--r-- 1 grundler users 7175 Apr 8 2005 test_fls.c -rw-r--r-- 1 grundler grundler 206 Sep 1 15:52 test_gettimeofday.c -rw-r--r-- 1 grundler grundler 1886 Oct 19 09:20 test_implement.c -rw-r--r-- 1 grundler users 2707 Jun 4 2005 test_unaligned.c I would appreciate if someone else would look at the output of test_implement.c to make it does The Right Thing. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Dmitry Torokhov <dtor@mail.ru> Acked-By: Adam Kropelin <akropel1@rochester.rr.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | USB: usb-storage: Unusual_dev updatePhil Dibowitz2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The protocol in this entry is needed for some versions of the device but not others. This adds the NEED_OVERRIDE flag to prevent it complaining to users who don't need it. Signed-off-by: Phil Dibowitz <phil@ipom.com>
| * | | USB: add another sierra wireless device idGreg Kroah-Hartman2006-11-03
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Peter Kucmeroski and Jason Ganovsky. Cc: Peter Kucmeroski <PKucmeroski@novell.com> Cc: Jason Ganovsky <JGanovsky@novell.com> Cc: Kevin Lloyd <klloyd@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] Fix user.* xattr permission check for sticky dirsAndreas Gruenbacher2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The user.* extended attributes are only allowed on regular files and directories. Sticky directories further restrict write access to the owner and privileged users. (See the attr(5) man page for an explanation.) The original check in ext2/ext3 when user.* xattrs were merged was more restrictive than intended, and when the xattr permission checks were moved into the VFS, read access to user.* attributes on sticky directores ended up being denied in addition. Originally-from: Gerard Neil <xyzzy@devferret.org> Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Fix sys_move_pages when a NULL node list is passedStephen Rothwell2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sys_move_pages() uses vmalloc() to allocate an array of structures that is fills with information passed from user mode and then passes to do_stat_pages() (in the case the node list is NULL). do_stat_pages() depends on a marker in the node field of the structure to decide how large the array is and this marker is correctly inserted into the last element of the array. However, vmalloc() doesn't zero the memory it allocates and if the user passes NULL for the node list, then the node fields are not filled in (except for the end marker). If the memory the vmalloc() returned happend to have a word with the marker value in it in just the right place, do_pages_stat will fail to fill the status field of part of the array and we will return (random) kernel data to user mode. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] IDE: Add the support of nvidia PATA controllers of MCP67 to amd74xx.cPeer Chen2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for PATA controllers of MCP67 to amd74xx.c. Signed-off-by: Peer Chen <pchen@nvidia.com> Cc: Jeff Garzik <jeff@garzik.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] fix Documentation/accounting/getdelays.c buf sizeOleg Nesterov2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | getdelays reports a "fatal reply error, errno 258". We don't have enough room for multi-threaded exit (PID + TGID). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Shailabh Nagar <nagar@watson.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] drivers/isdn/hysdn/hysdn_sched.c: sleep after taking spinlock fixAmol Lad2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | spin_lock_irq{save,restore} is incorrectly called here (the function can sleep after acquring the lock). done the necessary corrections and removed unwanted cli/sti. Signed-off-by: Amol Lad <amol@verismonetworks.com> Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] powerpc: wire up sys_migrate_pagesStephen Rothwell2006-11-03
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Create compat_sys_migrate_pagesStephen Rothwell2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is needed on bigendian 64bit architectures. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] uml: include tidyingJeff Dike2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to get the __NR_* constants, we need sys/syscall.h. linux/unistd.h works as well since it includes syscall.h, however syscall.h is more parsimonious. We were inconsistent in this, and this patch adds syscall.h includes where necessary and removes linux/unistd.h includes where they are not needed. asm/unistd.h also includes the __NR_* constants, but these are not the glibc-sanctioned ones, so this also removes one such inclusion. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] uml: fix I/O hangJeff Dike2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a UML hang in which everything would just stop until some I/O happened - a ping, someone whacking the keyboard - at which point everything would start up again as though nothing had happened. The cause was gcc reordering some code which absolutely needed to be executed in the order in the source. When unblock_signals switches signals from off to on, it needs to see if any interrupts had happened in the critical section. The interrupt handlers check signals_enabled - if it is zero, then the handler adds a bit to the "pending" bitmask and returns. unblock_signals checks this mask to see if any signals need to be delivered. The crucial part is this: signals_enabled = 1; save_pending = pending; if(save_pending == 0) return; pending = 0; In order to avoid an interrupt arriving between reading pending and setting it to zero, in which case, the record of the interrupt would be erased, signals are enabled. What happened was that gcc reordered this so that 'save_pending = pending' came before 'signals_enabled = 1', creating a one-instruction window within which an interrupt could arrive, set its bit in pending, and have it be immediately erased. When the I/O workload is purely disk-based, the loss of a block device interrupt stops the entire I/O system because the next block request will wait for the current one to finish. Thus the system hangs until something else causes some I/O to arrive, such as a network packet or console input. The fix to this particular problem is a memory barrier between enabling signals and reading the pending signal mask. An xchg would also probably work. Looking over this code for similar problems led me to do a few more things: - make signals_enabled and pending volatile so that they don't get cached in registers - add an mb() to the return paths of block_signals and unblock_signals so that the modification of signals_enabled doesn't get shuffled into the caller in the event that these are inlined in the future. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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