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2007-03-16[POWERPC] Fix atomicity of TIF update in flush_thread()Mathieu Desnoyers1-2/+7
Fix atomicity of TIF update in flush_thread() for powerpc Fixes it correctly with *_ti_thread_flag. Race : parent process executing : sys_ptrace() (lock_kernel()) (ptrace_get_task_struct(pid)) arch_ptrace() ptrace_detach() ptrace_disable(child); clear_singlestep(child); clear_tsk_thread_flag(child, TIF_SINGLESTEP); (which clears the TIF_SINGLESTEP flag atomically from a different process) (put_task_struct(child)) (unlock_kernel()) And at the same time, in the child process : sys_execve() do_execve() search_binary_handler() load_elf_binary() flush_old_exec() flush_thread() doing a non-atomic thread flag update Applies on 2.6.20. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-03-15Linux 2.6.21-rc4v2.6.21-rc4Linus Torvalds1-2/+2
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Merge branch 'upstream-linus' of ↵Linus Torvalds6-41/+63
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: natsemi: Avoid IntrStatus lossage if RX state machine resets. natsemi: Fix NAPI for interrupt sharing natsemi: Consistently use interrupt enable/disable functions NetXen: Fix softlockup seen during hardware access NetXen: Bug fix for Jumbo frames on XG card skge: set mac address bonding fix
2007-03-15[PATCH] sysfs: reinstate exclusion between method calls and attribute ↵Alan Stern2-8/+12
unregistration This patch (as869) reinstates the mutual exclusion between sysfs attribute method calls and attribute unregistration. The previously-reported deadlocks have been fixed, and this exclusion is by far the simplest way to avoid races during driver unbinding. The check for orphaned read-buffers has been moved down slightly, so that the remainder of a partially-read buffer will still be available to userspace even after the attribute has been unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390Alan Stern6-4/+122
This patch (as868) adds a helper routine for device drivers that need to set up a callback to perform some action in a different process's context. This is intended for use by attribute methods that want to unregister themselves or their parent device. Attribute method calls are mutually exclusive with unregistration, so such actions cannot be taken directly. Two attribute methods are converted to use the new helper routine: one for SCSI device deletion and one for System/390 ccwgroup devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15Merge branch 'for-linus' of ↵Linus Torvalds1-11/+9
master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid: HID: zeroing of bytes in output fields is bogus HID: allocate hid_parser in a proper way
2007-03-15natsemi: Avoid IntrStatus lossage if RX state machine resets.broonie@sirena.org.uk1-6/+8
This patch fixes the poll routine for the natsemi driver so that if the driver detects an RX state machine lockup then no interrupts will be lost while the driver recovers from that. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15natsemi: Fix NAPI for interrupt sharingbroonie@sirena.org.uk1-18/+20
The interrupt status register for the natsemi chips is clear on read and was read unconditionally from both the interrupt and from the NAPI poll routine, meaning that if the interrupt service routine was called (for example, due to a shared interrupt) while a NAPI poll was scheduled interrupts could be missed. This patch fixes that by ensuring that the interrupt status register is only read by the interrupt handler when interrupts are enabled from the chip. It also reverts a workaround for this problem from the netpoll hook and improves the trace for interrupt events. Thanks to Sergei Shtylyov <sshtylyov@ru.mvista.com> for spotting the issue, Mark Huth <mhuth@mvista.com> for a simpler method and Simon Blake <simon@citylink.co.nz> for testing resources. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15natsemi: Consistently use interrupt enable/disable functionsbroonie@sirena.org.uk1-3/+3
The natsemi drivers include functions for enabling and disabling interrupts from the chip but these are not used in all code paths. This patch changes the code paths that touch the interrupt enable register to use the functions. In all cases this adds an extra PCI read to post the operation but since none of these are in fast paths this shouldn't be too much of a problem. Signed-Off-By: Mark Brown <broonie@sirena.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15NetXen: Fix softlockup seen during hardware accessLinsys Contractor Mithlesh Thukral3-2/+11
NetXen: This will fix a softlock seen on some machines. The reason was too much time was spent waiting for hardware access to go through. Signed-off by: Mithlesh Thukral <mithlesh@netxen.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15NetXen: Bug fix for Jumbo frames on XG cardLinsys Contractor Mithlesh Thukral1-1/+4
NetXen: Set the MTU for the right port depending upon the port number for XG cards. Signed-off by: Mithlesh Thukral <mithlesh@netxen.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-15skge: set mac address bonding fixStephen Hemminger1-11/+17
When bonding does fail over it calls set_mac_address. When this happens as the result of another port going down, the phy_mutex that is common to both ports is held, so it deadlocks. Setting the address doesn't need to do anything that needs the phy_mutex, it already has the RTNL to protect against other admin actions. This change just disables the receiver to avoid any hardware confusion while address is changing. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-14Disable NMI watchdog by default properlyLinus Torvalds4-14/+3
This reverts commit 6ebf622b2577c50b1f496bd6a5e8739e55ae7b1c and replaces it with one that actually works. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14Merge branch 'upstream-linus' of ↵Linus Torvalds8-54/+84
master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2_dlm: Add missing locks in dlm_empty_lockres ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockres configfs: add missing mutex_unlock() ocfs2: add some missing address space callbacks ocfs2: Concurrent access of o2hb_region->hr_task was not locked ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()
2007-03-14Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds2-0/+9
* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] i8xx TCO driver - mark for removal
2007-03-14[PATCH] m68k dma-mapping: gfp_t annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] paride endianness annotationsAl Viro1-4/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] kill bogus casts in amd64 uaccess.hAl Viro1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] atl1 trivial endianness misannotationsAl Viro1-2/+2
NB: driver is choke-full of code that will break on big-endian; as long as the hardware is onboard-only we can live with that, but sooner or later that'll need fixing. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] ANSIfy powerpc floppy.hAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] hid-core endianness annotationsAl Viro1-5/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] cifs endianness annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] C99 initializers, proper use of const in drivers/ps3Al Viro1-11/+13
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] qeth gfp_t annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] cciss endian annotationsAl Viro1-5/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] trivial ATA iomem annotationsAl Viro2-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] sparc: nr_free_pages() is unsigned longAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: William Irwin <wli@holomorphy.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] pasemi trivial iomem annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] constant should be longAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] dmfe trivial endianness annotationsAl Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] fastcall still doesn't make sense in paravirtAl Viro1-1/+1
Andi had removed a bunch of those, but one more had creeped in... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] misc NULL noiseAl Viro8-14/+14
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] rtc-cmos needs RTC_ALWAYS_BCD knownAl Viro1-0/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] sparc: have dma-mapping.h include generic/dma-mapping-broken in ↵Al Viro1-14/+1
non-PCI case Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] BLK_DEV_IDE_CELLEB dependency fixAl Viro1-1/+1
It's bool and it depends on IDE => should depend on IDE=y Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] include of asm/pgtable.h in nfsfh is bogusAl Viro1-1/+0
not needed and actually breaks build on frv, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] m32r dma-mapping.h should simply include generic/dma-mapping-broken.hAl Viro1-18/+1
... instead of trying to duplicate its bits Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] fix ipath_dma_free_coherent() prototypeAl Viro1-1/+1
method gets u64, not dma_addr_t Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] stacktrace doesn't work on umlAl Viro1-1/+1
and no, it's not the case of "let's pull bits from underlying architecture" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] zatm __init abuseAl Viro1-2/+2
zatm_init() and zatm_start() should be __devinit (the former is not module init, despite the name - it's a helper for PCI ->probe()) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] (uml) sparse flags for userland glue are missing $(CF)Al Viro1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] appldata build fixAl Viro1-1/+4
PGALLOC_DMA is defined only if we have CONFIG_ZONE_DMA Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] const file_operations falloutAl Viro1-4/+16
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] ibmtr probe is __devinit, not __initAl Viro2-4/+4
used by ->attach() in pcmcia analog Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] sanitize security_getprocattr() APIAl Viro4-22/+17
have it return the buffer it had allocated Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14[PATCH] fix deadlock in audit_log_task_context()Al Viro1-13/+11
GFP_KERNEL allocations in non-blocking context; fixed by killing an idiotic use of security_getprocattr(). Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14ocfs2_dlm: Add missing locks in dlm_empty_lockresSunil Mushran1-0/+3
__dlm_lockres_unused() expects the caller to take the lockres spinlock. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockresSunil Mushran1-0/+2
In some circumstances, this was causing us to reference freed memory. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14configfs: add missing mutex_unlock()Joel Becker1-15/+12
d_alloc() failure in configfs_register_subsystem() would fail to unlock the mutex taken above. Reorganize the exit path to ensure the unlock happens. Reported-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-03-14ocfs2: add some missing address space callbacksJoel Becker1-1/+25
Under load, OCFS2 would crash in invalidate_inode_pages2_range() because invalidate_complete_page2() was unable to invalidate a page. It would appear that JBD is holding on to the page. ext3 has a specific ->releasepage() handler to cover this case. Steal ext3's ->releasepage(), ->invalidatepage(), and ->migratepage(), as they appear completely appropriate for OCFS2. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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