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* cpumask: make Xen use the new operators.Rusty Russell2009-03-131-2/+2
| | | | | | | | | | Impact: cleanup In particular, *map are deprecated, and you have to use the accessors as *mask are const. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: Jeremy Fitzhardinge <jeremy@xensource.com>
* cpumask: clean up summit's send_IPI functionsRusty Russell2009-03-131-7/+3
| | | | | | | | | | Impact: cleanup, remove cpumask from stack summit_send_IPI_allbutself might as well call default_send_IPI_mask_allbutself_logical(). Also change cpumask_t to struct cpumask and &cpu_online_map to cpu_online_mask while here. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: use new cpumask functions throughout x86Rusty Russell2009-03-139-27/+26
| | | | | | | | | | Impact: cleanup 1) &cpu_online_map -> cpu_online_mask 2) first_cpu/next_cpu_nr -> cpumask_first/cpumask_next 3) cpu_*_map manipulation -> init_cpu_* / set_cpu_* Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* x86: unify ↵Rusty Russell2009-03-132-30/+0
| | | | | | | | cpu_callin_mask/cpu_callout_mask/cpu_initialized_mask/cpu_sibling_setup_mask Impact: cleanup Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: convert struct cpuinfo_x86's llc_shared_map to cpumask_var_tRusty Russell2009-03-132-8/+27
| | | | | | Impact: reduce kernel memory usage when CONFIG_CPUMASK_OFFSTACK=y Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: convert node_to_cpumask_map[] to cpumask_var_tRusty Russell2009-03-134-28/+24
| | | | | | | | | | | | Impact: reduce kernel memory usage when CONFIG_CPUMASK_OFFSTACK=y Straightforward conversion: done for 32 and 64 bit kernels. node_to_cpumask_map is now a cpumask_var_t array. 64-bit used to be a dynamic cpumask_t array, and 32-bit used to be a static cpumask_t array. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* x86: unify 32 and 64-bit node_to_cpumask_mapRusty Russell2009-03-135-94/+83
| | | | | | | | | | | | Impact: cleanup We take the 64-bit code and use it on 32-bit as well. The new file is called mm/numa.c. In a minor cleanup, we use cpu_none_mask instead of declaring a local cpu_mask_none. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: remove x86's node_to_cpumask now everyone uses cpumask_of_nodeRusty Russell2009-03-132-67/+0
| | | | | | Impact: cleanup Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* x86: arch_send_call_function_ipi_maskRusty Russell2009-03-131-2/+3
| | | | | | | | | Impact: implement new API We define arch_send_call_function_ipi_mask and generic kernel/smp.c code creates arch_send_call_function_ipi() as a wrapper. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: convert arch/x86/kernel/cpu/mcheck/mce_64.cRusty Russell2009-03-131-4/+6
| | | | | | | | | | Impact: reduce kernel memory usage when CONFIG_CPUMASK_OFFSTACK=y Simple conversion of mce_device_initialized to cpumask_var_t. We don't check the alloc_cpumask_var() return since it's boot-time only, and the misc_register() in that same function isn't checked. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: x86: convert cpu_sibling_map/cpu_core_map to cpumask_var_tRusty Russell2009-03-139-21/+32
| | | | | | | | | | | Impact: reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y In most places it's cleaner to use the accessors cpu_sibling_mask() and cpu_core_mask() wrappers which already exist. I couldn't avoid cleaning up the access in oprofile, either. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: convert arch/x86/kernel/nmi.c's backtrace_mask to a cpumask_var_tRusty Russell2009-03-131-5/+6
| | | | | | | | | | | | Impact: cleanup, reduce memory usage for CONFIG_CPUMASK_OFFSTACK=y I *think* every path calls check_nmi_watchdog before using the watchdog, so that's the right place for the initialization. If that's wrong, we'll get a nice NULL-deref with CONFIG_CPUMASK_OFFSTACK=y, and have uncovered another bug. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: convert c1e_mask in arch/x86/kernel/process.c to cpumask_var_t.Rusty Russell2009-03-131-4/+6
| | | | | | | | Impact: reduce kernel size when CONFIG_CPUMASK_OFFSTACK=y Simple conversion. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: remove obsolete topology_core_siblings and ↵Rusty Russell2009-03-131-2/+0
| | | | | | | | | | topology_thread_siblings: x86 Impact: cleanup There were replaced by topology_core_cpumask and topology_thread_cpumask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: remove cpu_coregroup_map: x86Rusty Russell2009-03-132-6/+0
| | | | | | | | Impact: cleanup cpu_coregroup_mask is the New Hotness. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: remove the now-obsoleted pcibus_to_cpumask(): x86Rusty Russell2009-03-132-6/+0
| | | | | | | | Impact: reduce stack usage for large NR_CPUS cpumask_of_pcibus() is the new version. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: x86Rusty Russell2009-03-132-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup (Thanks to Al Viro for reminding me of this, via Ingo) CPU_MASK_ALL is the (deprecated) "all bits set" cpumask, defined as so: #define CPU_MASK_ALL (cpumask_t) { { ... } } Taking the address of such a temporary is questionable at best, unfortunately 321a8e9d (cpumask: add CPU_MASK_ALL_PTR macro) added CPU_MASK_ALL_PTR: #define CPU_MASK_ALL_PTR (&CPU_MASK_ALL) Which formalizes this practice. One day gcc could bite us over this usage (though we seem to have gotten away with it so far). So replace everywhere which used &CPU_MASK_ALL or CPU_MASK_ALL_PTR with the modern "cpu_all_mask" (a real const struct cpumask *), and remove CPU_MASK_ALL_PTR altogether. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu> Reported-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mike Travis <travis@sgi.com>
* cpumask: replace node_to_cpumask with cpumask_of_node.Rusty Russell2009-03-138-17/+13
| | | | | | | | | | Impact: cleanup node_to_cpumask (and the blecherous node_to_cpumask_ptr which contained a declaration) are replaced now everyone implements cpumask_of_node. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* cpumask: use topology_core_cpumask/topology_thread_cpumask instead of ↵Rusty Russell2009-03-132-5/+5
| | | | | | | | | | | | cpu_core_map/cpu_sibling_map Impact: cleanup This is presumably what those definitions are for, and while all archs define cpu_core_map/cpu_sibling map, that's changing (eg. x86 wants to change it to a pointer). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* Merge branch 'x86/core' into cpus4096Ingo Molnar2009-03-113225-54516/+93891
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| *---. Merge branches 'x86/cleanups', 'x86/kexec', 'x86/mce2' and 'linus' into x86/coreIngo Molnar2009-03-11320-3656/+6530
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| | | | * i810: fix kernel crash fix when struct fb_var_screeninfo is suppliedSamuel CUELLA2009-03-101-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prevent the kernel from being crashed by a divide-by-zero operation when supplied an incorrectly filled 'struct fb_var_screeninfo' from userland. Previously i810_main.c:1005 (i810_check_params) was using the global 'yres' symbol previously defined at i810_main.c:145 as a module parameter value holder (i810_main.c:2174). If i810fb is compiled-in or if this param doesn't get a default value, this direct usage leads to a divide-by-zero at i810_main.c:1005 (i810_check_params). The patch simply replace the 'yres' global, perhaps undefined symbol usage by a given parameter structure lookup. This problem occurs with directfb, mplayer -vo fbdev, SDL library. It was also reported ( but non solved ) at: http://mail.directfb.org/pipermail/directfb-dev/2008-March/004050.html Signed-off-by: Samuel CUELLA <samuel.cuella@supinfo.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * m68knommu: m528x build fixSteven King2009-03-101-228/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There isn't any mcfqspi.h in the tree, and without it everything inside the #ifdef CONFIG_SPI is uncompilable. Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * m68knommu: m5206e build fixSteven King2009-03-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * rcu: documentation 1Q09 updatePaul E. McKenney2009-03-101-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the RCU documentation to call out the need for callers of primitives like call_rcu() and synchronize_rcu() to prevent subsequent RCU readers from hazard. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * kernel/user.c: fix a memory leak when freeing up non-init usernamespaces usersDhaval Giani2009-03-101-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were returning early in the sysfs directory cleanup function if the user belonged to a non init usernamespace. Due to this a lot of the cleanup was not done and we were left with a leak. Fix the leak. Reported-by: Serge Hallyn <serue@linux.vnet.ibm.com> Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * mtd: physmap: fix NULL pointer dereference in error pathAtsushi Nemoto2009-03-101-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit e480814f138cd5d78a8efe397756ba6b6518fdb6 ("[MTD] [MAPS] physmap: fix wrong free and del_mtd_{partition,device}") introduces a NULL pointer dereference in physmap_flash_remove when called from the error path in physmap_flash_probe (if map_probe failed). Call del_mtd_{partition,device} only if info->cmtd was not NULL. Reported-by: pHilipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: David Woodhouse <dwmw2@infradead.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * intel-agp: fix a panic with 1M of shared memory, no GTT entriesLubomir Rintel2009-03-101-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When GTT size is equal to amount of video memory, the amount of GTT entries is computed lower than zero, which is invalid and leads to off-by-one error in intel_i915_configure() Originally posted here: http://bugzilla.kernel.org/show_bug.cgi?id=12539 http://bugzilla.redhat.com/show_bug.cgi?id=445592 Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Cc: Lubomir Rintel <lkundrak@v3.sk> Cc: Dave Airlie <airlied@linux.ie> Reviewed-by: Eric Anholt <eric@anholt.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * mtd_dataflash: fix probing of AT45DB321C chips.Will Newton2009-03-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 771999b65f79264acde4b855e5d35696eca5e80c ("[MTD] DataFlash: bugfix, binary page sizes now handled") broke support for probing AT45DB321C flash chips. These chips do not support the "page size" status bit, so if we match the JEDEC id return early. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Will Newton <will.newton@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * idr: make idr_remove_all() do removal -before- free_layer()Paul E. McKenney2009-03-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a problem in the IDR system, where an idr_remove_all() hands a data element to call_rcu() (via free_layer()) before making that data element inaccessible to new readers. This is very bad, and results in readers still having a reference to this data element at the end of the grace period. Tests on large machines that concurrently map and unmap user-space memory within the same multithreaded process result in crashes within about five minutes. Applying this patch increases the kernel's longevity to the three-to-eight-hour range. There appear to be other similar problems in idr_get_empty_slot() and sub_remove(), but I fixed the easy one in idr_remove_all() first. It is therefore no surprise that failures still occur. Located-by: Milton Miller II <miltonm@austin.ibm.com> Tested-by: Milton Miller II <miltonm@austin.ibm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * devpts: remove graffitiAlexey Dobriyan2009-03-101-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Very annoying when working with containters. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * x86/agp: tighten check to update amd nb apertureYinghai Lu2009-03-101-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix bug to make agp work with dri Jeffrey reported that dri does work with 64bit, but doesn't work with 32bit it turns out NB aperture is 32M, aperture on agp is 128M 64bit is using 64M for vaidation for 64 iommu/gart 32bit is only using 32M..., and will not update the nb aperture. So try to compare nb apterture and agp apterture before leaving not touch nb aperture. Reported-by: Jeffrey Trull <jetrull@sbcglobal.net> Tested-by: Jeffrey Trull <jetrull@sbcglobal.net> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Dave Airlie <airlied@linux.ie> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * xtensa: fix compilation somewhatAlexey Dobriyan2009-03-105-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ->put_char changes * HIGHMEM is bogus it seems, there is no kmap_atomic() et al * some includes Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Chris Zankel <zankel@tensilica.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * lm85: add VRM10 support for adt7468 chipDarrick J. Wong2009-03-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The adt7468 chip supports VRM10 sensors just like the adt7463; add a missing check for it. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * lm85: fix the version check that broke adt7468 probingDarrick J. Wong2009-03-101-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The verstep check in the lm85 driver fails because the upper nibble of the version register is 0x7, not 0x6, on the adt7468 chip. Probing of all adt7468s was broken by 69fc1feba2d5856ff74dedb6ae9d8c490210825c ("hwmon: (lm85) Rework the device detection"), and this patch fixes that. Also add in a missing i2c_device_id that accidentally got dropped from the original patch. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * menu: fix embedded menu snafuRandy Dunlap2009-03-101-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The COMPAT_BRK kconfig symbol does not depend on EMBEDDED, but it is in the midst of the EMBEDDED menu symbols, so it mucks up the EMBEDDED menu. Fix by moving it to just after all of the EMBEDDED menu symbols. Also, ANON_INODES has a similar problem, so move it to just above the EMBEDDED menu items since it is used in the EMBEDDED menu. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * mm: get_nid_for_pfn() returns intRoel Kluin2009-03-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_nid_for_pfn() returns int Presumably the (nid < 0) case has never happened. We do know that it is happening on one system while creating a symlink for a memory section so it should also happen on the same system if unregister_mem_sect_under_nodes() were called to remove the same symlink. The test was actually added in response to a problem with an earlier version reported by Yasunori Goto where one or more of the leading pages of a memory section on the 2nd node of one of his systems was uninitialized because I believe they coincided with a memory hole. That earlier version did not ignore uninitialized pages and determined the nid by considering only the 1st page of each memory section. This caused the symlink to the 1st memory section on the 2nd node to be incorrectly created in /sys/devices/system/node/node0 instead of /sys/devices/system/node/node1. The problem was fixed by adding the test to skip over uninitialized pages. I suspect we have not seen any reports of the non-removal of a symlink due to the incorrect declaration of the nid variable in unregister_mem_sect_under_nodes() because - systems where a memory section could have an uninitialized range of leading pages are probably rare. - memory remove is probably not done very frequently on the systems that are capable of demonstrating the problem. - lingering symlink(s) that should have been removed may have simply gone unnoticed. [garyhade@us.ibm.com: wrote changelog] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-03-101-7/+8
| | | | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/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 mmiotrace: fix remove_kmmio_fault_pages()
| | | | * \ Merge branch 'sh/for-2.6.29' of ↵Linus Torvalds2009-03-102-4/+3
| | | | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: video: deferred io cleanup fix for sh_mobile_lcdcfb sh: Add media/soc_camera.h to board setup of Renesas AP325RXA
| | | | | * | video: deferred io cleanup fix for sh_mobile_lcdcfbMagnus Damm2009-03-101-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix deferred io cleanup patch in the sh_mobile_lcdcfb driver. If probe() fails early the sh_mobile_lcdc_stop() function will be called to clean up deferred io. This patch modifies the code to only call fb_deferred_io_cleanup() after deferred io has been initialized. With this patch applied we no longer hit BUG_ON() inside fb_deferred_io_cleanup(). Triggers on a Migo-R with the SYS QVGA panel board unmounted. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | | * | sh: Add media/soc_camera.h to board setup of Renesas AP325RXANobuhiro Iwamatsu2009-03-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Other compilation errors were revised by commit of "sh: ap325rxa: Revert ov772x support" (08c2f5b4d76f83213e379b12df504269d21c9e7c) but other compilation errors are given. We revert this commit and need to add new header(media/soc_camera.h). This change revises new compilation error. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | * | | Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds2009-03-091-12/+18
| | | | |\ \ \ | | | | | |/ / | | | | |/| | | | | | | | | | | | | | | | * 'for-linus' of git://neil.brown.name/md: md: fix deadlock when stopping arrays
| | | | | * | md: fix deadlock when stopping arraysDan Williams2009-03-041-12/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Resolve a deadlock when stopping redundant arrays, i.e. ones that require a call to sysfs_remove_group when shutdown. The deadlock is summarized below: Thread1 Thread2 ------- ------- read sysfs attribute stop array take mddev lock sysfs_remove_group sysfs_get_active wait for mddev lock wait for active Sysrq-w: -------- mdmon S 00000017 2212 4163 1 f1982ea8 00000046 2dcf6b85 00000017 c0b23100 f2f83ed0 c0b23100 f2f8413c c0b23100 c0b23100 c0b1fb98 f2f8413c 00000000 f2f8413c c0b23100 f2291ecc 00000002 c0b23100 00000000 00000017 f2f83ed0 f1982eac 00000046 c044d9dd Call Trace: [<c044d9dd>] ? debug_mutex_add_waiter+0x1d/0x58 [<c06ef451>] __mutex_lock_common+0x1d9/0x338 [<c06ef451>] ? __mutex_lock_common+0x1d9/0x338 [<c06ef5e3>] mutex_lock_interruptible_nested+0x33/0x3a [<c0634553>] ? mddev_lock+0x14/0x16 [<c0634553>] mddev_lock+0x14/0x16 [<c0634eda>] md_attr_show+0x2a/0x49 [<c04e9997>] sysfs_read_file+0x93/0xf9 mdadm D 00000017 2812 4177 1 f0401d78 00000046 430456f8 00000017 f0401d58 f0401d20 c0b23100 f2da2c4c c0b23100 c0b23100 c0b1fb98 f2da2c4c 0a10fc36 00000000 c0b23100 f0401d70 00000003 c0b23100 00000000 00000017 f2da29e0 00000001 00000002 00000000 Call Trace: [<c06eed1b>] schedule_timeout+0x1b/0x95 [<c06eed1b>] ? schedule_timeout+0x1b/0x95 [<c06eeb97>] ? wait_for_common+0x34/0xdc [<c044fa8a>] ? trace_hardirqs_on_caller+0x18/0x145 [<c044fbc2>] ? trace_hardirqs_on+0xb/0xd [<c06eec03>] wait_for_common+0xa0/0xdc [<c0428c7c>] ? default_wake_function+0x0/0x12 [<c06eeccc>] wait_for_completion+0x17/0x19 [<c04ea620>] sysfs_addrm_finish+0x19f/0x1d1 [<c04e920e>] sysfs_hash_and_remove+0x42/0x55 [<c04eb4db>] sysfs_remove_group+0x57/0x86 [<c0638086>] do_md_stop+0x13a/0x499 This has been there for a while, but is easier to trigger now that mdmon is closely watching sysfs. Cc: <stable@kernel.org> Reported-by: Jacek Danecki <jacek.danecki@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| | | | * | | Merge branch 'fixes' of ↵Linus Torvalds2009-03-094-35/+27
| | | | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Add p4-clockmod sysfs-ui removal to feature-removal schedule. Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod."
| | | | | * | | [CPUFREQ] Add p4-clockmod sysfs-ui removal to feature-removal schedule.Dave Jones2009-03-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Dave Jones <davej@redhat.com>
| | | | | * | | Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod."Dave Jones2009-03-093-35/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e088e4c9cdb618675874becb91b2fd581ee707e6. Removing the sysfs interface for p4-clockmod was flagged as a regression in bug 12826. Course of action: - Find out the remaining causes of overheating, and fix them if possible. ACPI should be doing the right thing automatically. If it isn't, we need to fix that. - mark p4-clockmod ui as deprecated - try again with the removal in six months. It's not really feasible to printk about the deprecation, because it needs to happen at all the sysfs entry points, which means adding a lot of strcmp("p4-clockmod".. calls to the core, which.. bleuch. Signed-off-by: Dave Jones <davej@redhat.com>
| | | | * | | | copy_process: fix CLONE_PARENT && parent_exec_id interactionOleg Nesterov2009-03-091-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CLONE_PARENT can fool the ->self_exec_id/parent_exec_id logic. If we re-use the old parent, we must also re-use ->parent_exec_id to make sure exit_notify() sees the right ->xxx_exec_id's when the CLONE_PARENT'ed task exits. Also, move down the "p->parent_exec_id = p->self_exec_id" thing, to place two different cases together. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: David Howells <dhowells@redhat.com> Cc: Serge E. Hallyn <serge@hallyn.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| | | | * | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-03-0936-172/+286
| | | | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) p54: fix race condition in memory management cfg80211: test before subtraction on unsigned iwlwifi: fix error flow in iwl*_pci_probe rt2x00 : more devices to rt73usb.c rt2x00 : more devices to rt2500usb.c bonding: Fix device passed into ->ndo_neigh_setup(). vlan: Fix vlan-in-vlan crashes. net: Fix missing dev->neigh_setup in register_netdevice(). tmspci: fix request_irq race pkt_sched: act_police: Fix a rate estimator test. tg3: Fix 5906 link problems SCTP: change sctp_ctl_sock_init() to try IPv4 if IPv6 fails IPv6: add "disable" module parameter support to ipv6.ko sungem: another error printed one too early aoe: error printed 1 too early net pcmcia: worklimit reaches -1 net: more timeouts that reach -1 net: fix tokenring license dm9601: new vendor/product IDs netlink: invert error code in netlink_set_err() ...
| | | | | * | | | p54: fix race condition in memory managementChristian Lamparter2009-03-061-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a number of race conditions in the driver. Up until now, "entry" pointer was initialized before acquiring the right lock. Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | | | | * | | | cfg80211: test before subtraction on unsignedRoel Kluin2009-03-061-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | freq_diff is unsigned, so test before subtraction Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit (git 2.34.1) at 2025-07-30 08:53:09 +0000