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* Missing critical phys_to_virt in lib/swiotlb.cDavid Moore2007-03-081-1/+1
| | | | | | | | | | | Adds missing call to phys_to_virt() in the lib/swiotlb.c:swiotlb_sync_sg() function. Without this change, a kernel panic will always occur whenever a SWIOTLB bounce buffer from a scatter-gather list gets synced. Signed-off-by: David Moore <dcm@acm.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* disable debugging version of write_lock()Andrew Morton2006-11-201-4/+6
| | | | | | | | | | | | | | We've confirmed that the debug version of write_lock() can get stuck for long enough to cause NMI watchdog timeouts and hence a crash. We don't know why, yet. Disable it for now. Also disable the similar read_lock() code. Just in case. Thanks to Dave Olson <olson@unixfolk.com> for reporting and testing. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Convert idr's internal locking to _irqsave variantRoland Dreier2006-09-181-6/+10
| | | | | | | | | | | | | | | | | | | Currently, the code in lib/idr.c uses a bare spin_lock(&idp->lock) to do internal locking. This is a nasty trap for code that might call idr functions from different contexts; for example, it seems perfectly reasonable to call idr_get_new() from process context and idr_remove() from interrupt context -- but with the current locking this would lead to a potential deadlock. The simplest fix for this is to just convert the idr locking to use spin_lock_irqsave(). In particular, this fixes a very complicated locking issue detected by lockdep, involving the ib_ipoib driver's priv->lock and dev->_xmit_lock, which get involved with the ib_sa module's query_idr.lock. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [TEXTSEARCH]: Fix Boyer Moore initialization bugMichael Rash2006-09-181-6/+5
| | | | | | | | | | | | The pattern is set after trying to compute the prefix table, which tries to use it. Initialize it before calling compute_prefix_tbl, make compute_prefix_tbl consistently use only the data from struct ts_bm and remove the now unnecessary arguments. Signed-off-by: Michael Rash <mbr@cipherdyne.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* idr: fix race in idr codeSonny Rao2006-09-061-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I ran into a bug where the kernel died in the idr code: cpu 0x1d: Vector: 300 (Data Access) at [c000000b7096f710] pc: c0000000001f8984: .idr_get_new_above_int+0x140/0x330 lr: c0000000001f89b4: .idr_get_new_above_int+0x170/0x330 sp: c000000b7096f990 msr: 800000000000b032 dar: 0 dsisr: 40010000 current = 0xc000000b70d43830 paca = 0xc000000000556900 pid = 2022, comm = hwup 1d:mon> t [c000000b7096f990] c0000000000d2ad8 .expand_files+0x2e8/0x364 (unreliable) [c000000b7096faa0] c0000000001f8bf8 .idr_get_new_above+0x18/0x68 [c000000b7096fb20] c00000000002a054 .init_new_context+0x5c/0xf0 [c000000b7096fbc0] c000000000049dc8 .copy_process+0x91c/0x1404 [c000000b7096fcd0] c00000000004a988 .do_fork+0xd8/0x224 [c000000b7096fdc0] c00000000000ebdc .sys_clone+0x5c/0x74 [c000000b7096fe30] c000000000008950 .ppc_clone+0x8/0xc -- Exception: c00 (System Call) at 000000000fde887c SP (f8b4e7a0) is in userspace Turned out to be a race-condition and NULL ptr deref, here's my fix: Users of the idr code are supposed to call idr_pre_get without locking, so the idr code must serialize itself with respect to layer allocations. However, it fails to do so in an error path in idr_get_new_above_int(). I added the missing locking to fix this. Signed-off-by: Sonny Rao <sonny@burdell.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Revert mount/umount uevent removalGreg Kroah-Hartman2006-02-221-0/+4
| | | | | | | | | | | | | | | This change reverts the 033b96fd30db52a710d97b06f87d16fc59fee0f1 commit from Kay Sievers that removed the mount/umount uevents from the kernel. Some older versions of HAL still depend on these events to detect when a new device has been mounted. These events are not correctly emitted, and are broken by design, and so, should not be relied upon by any future program. Instead, the /proc/mounts file should be polled to properly detect this kind of event. A feature-removal-schedule.txt entry has been added, noting when this interface will be removed from the kernel. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] iomap_copy fallout (m68k)Al Viro2006-02-181-1/+1
| | | | | | added __raw_writel(), sanitized include order in iomap_copy.c Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] Fix over-zealous tag clearing in radix_tree_deleteNeilBrown2006-02-161-4/+6
| | | | | | | | | | | | | | | | | | | | | If a tag is set for a node being deleted from a radix_tree, then that tag gets cleared from the parent of the node, even if it is set for some siblings of the node begin deleted. This patch changes the logic to include a test for any_tag_set similar to the logic a little futher down. Care is taken to ensure that 'nr_cleared_tags' remains equals to the number of entries in the 'tags' array which are set to '0' (which means that this tag is not set in the tree below pathp->node, and should be cleared at pathp->node and possibly above. [ Nick says: "Linus FYI, I was able to modify the radix tree test harness to catch the bug and can no longer trigger it after the fix. Resulting code passes all other harness tests as well of course." ] Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2006-02-072-1/+10
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| * [PATCH] Fix uevent buffer overflow in input layerBenjamin Herrenschmidt2006-02-061-1/+1
| | | | | | | | | | | | | | | | The buffer used for kobject uevent is too small for some of the events generated by the input layer. Bump it to 2k. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * [PATCH] kobject: don't oops on null kobject.nameChuck Ebbert2006-02-061-0/+4
| | | | | | | | | | | | | | | | kobject_get_path() will oops if one of the component names is NULL. Fix that by returning NULL instead of oopsing. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * [PATCH] kobject_add() must have a valid name in order to succeed.Greg Kroah-Hartman2006-02-061-0/+5
| | | | | | | | | | | | | | | | So we might as well check to verify this, and let the user know that something is wrong if they didn't do it correctly, instead of oopsing later on in kobject_get_name() or somewhere else. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [PATCH] Fix spinlock debugging delays to not time out too earlyIngo Molnar2006-02-071-3/+3
|/ | | | | | | | | | | | | | | | The spinlock-debug wait-loop was using loops_per_jiffy to detect too long spinlock waits - but on fast CPUs this led to a way too fast timeout and false messages. The fix is to include a __delay(1) call in the loop, to correctly approximate the intended delay timeout of 1 second. The code assumes that every architecture implements __delay(1) to last around 1/(loops_per_jiffy*HZ) seconds. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-02-031-15/+25
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| * [TEXTSEARCH]: Fix broken good shift array calculation in Boyer-MoorePablo Neira Ayuso2006-02-021-15/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current logic does not calculate correctly the good shift array: Let x be the pattern that is being searched. Let y be the block of data. The good shift array aligns the segment: x[i+1 ... m-1] = y[i+j+1 ... j+m-1] with its rightmost occurrence in x that fulfils x[i] neq y[i+j]. In previous version, the good shift array for the pattern ANPANMAN is: [1, 8, 3, 8, 8, 8, 8, 8] and should be: [1, 8, 3, 6, 6, 6, 6, 6] Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] lib: Fix bug in int_sqrt() for 64 bit longsPeter Williams2006-02-031-1/+1
|/ | | | | | | | | | | | | The implementation of int_sqrt() assumes that longs have 32 bits. On systems that have 64 bit longs this will result in gross errors when the argument to the function is greater than 2^32 - 1 on such systems. I doubt whether any such use is currently made of int_sqrt() but the attached patch fixes the problem anyway. Signed-off-by: Peter Williams <pwil3058@bigpond.com.au> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Introduce __iowrite32_copyBryan O'Sullivan2006-02-012-1/+43
| | | | | | | | | | | | | | | | | This arch-independent routine copies data to a memory-mapped I/O region, using 32-bit accesses. The naming is double-underscored to make it clear that it does not guarantee write ordering, nor does it perform a memory barrier afterwards; the kernel doc also explicitly states this. This style of access is required by some devices. This change also introduces include/linux/io.h, at Andrew's suggestion. It only has one occupant at the moment, but is a logical destination for oft-replicated contents of include/asm-*/{io,iomap}.h to migrate to. Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] When CONFIG_CC_OPTIMIZE_FOR_SIZE, allow gcc4 to control inliningIngo Molnar2006-01-141-0/+14
| | | | | | | | | | | | If optimizing for size (CONFIG_CC_OPTIMIZE_FOR_SIZE), allow gcc4 compilers to decide what to inline and what not - instead of the kernel forcing gcc to inline all the time. This requires several places that require to be inlined to be marked as such, previous patches in this series do that. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Use function pointers to call DMA mapping functionsMuli Ben-Yehuda2006-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AK: I hacked Muli's original patch a lot and there were a lot of changes - all bugs are probably to blame on me now. There were also some changes in the fall back behaviour for swiotlb - in particular it doesn't try to use GFP_DMA now anymore. Also all DMA mapping operations use the same core dma_alloc_coherent code with proper fallbacks now. And various other changes and cleanups. Known problems: iommu=force swiotlb=force together breaks needs more testing. This patch cleans up x86_64's DMA mapping dispatching code. Right now we have three possible IOMMU types: AGP GART, swiotlb and nommu, and in the future we will also have Xen's x86_64 swiotlb and other HW IOMMUs for x86_64. In order to support all of them cleanly, this patch: - introduces a struct dma_mapping_ops with function pointers for each of the DMA mapping operations of gart (AMD HW IOMMU), swiotlb (software IOMMU) and nommu (no IOMMU). - gets rid of: if (swiotlb) return swiotlb_xxx(); - PCI_DMA_BUS_IS_PHYS is now checked against the dma_ops being set This makes swiotlb faster by avoiding double copying in some cases. Signed-Off-By: Muli Ben-Yehuda <mulix@mulix.org> Signed-Off-By: Jon D. Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] let MAGIC_SYSRQ no longer depend on DEBUG_KERNELAdrian Bunk2006-01-101-7/+7
| | | | | | | | | | | | I know several people using MAGIC_SYSRQ not for kernel debugging but for trying to do a halfway normal shutdown in case of problems. Since there's no technical reason why MAGIC_SYSRQ would have to depend on DEBUG_KERNEL, I'm therefore suggesting to drop this dependency. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lib/zlib*: cleanupsAdrian Bunk2006-01-106-4/+18
| | | | | | | | | | | | | | | | | | | | | | This patch contains the following possible cleanups: - #if 0 the following unused functions: - zlib_deflate/deflate.c: zlib_deflateSetDictionary - zlib_deflate/deflate.c: zlib_deflateParams - zlib_deflate/deflate.c: zlib_deflateCopy - zlib_inflate/infblock.c: zlib_inflate_set_dictionary - zlib_inflate/infblock.c: zlib_inflate_blocks_sync_point - zlib_inflate/inflate_sync.c: zlib_inflateSync - zlib_inflate/inflate_sync.c: zlib_inflateSyncPoint - remove the following unneeded EXPORT_SYMBOL's: - zlib_deflate/deflate_syms.c: zlib_deflateCopy - zlib_deflate/deflate_syms.c: zlib_deflateParams - zlib_inflate/inflate_syms.c: zlib_inflateSync - zlib_inflate/inflate_syms.c: zlib_inflateSyncPoint Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] printk levels for spinlock debugDave Jones2006-01-101-7/+11
| | | | | | Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mutex subsystem, debugging codeIngo Molnar2006-01-091-0/+8
| | | | | | | mutex implementation - add debugging code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
* [PATCH] atomic: dec_and_lock use atomic primitivesNick Piggin2006-01-081-43/+6
| | | | | | | | | Convert atomic_dec_and_lock to use new atomic primitives. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cpuset: better bitmap remap defaultsPaul Jackson2006-01-081-45/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the default behaviour for the remap operators in bitmap, cpumask and nodemask. As previously submitted, the pair of masks <A, B> defined a map of the positions of the set bits in A to the corresponding bits in B. This is still true. The issue is how to map the other positions, corresponding to the unset (0) bits in A. As previously submitted, they were all mapped to the first set bit position in B, a constant map. When I tried to code per-vma mempolicy rebinding using these remap operators, I realized this was wrong. This patch changes the default to map all the unset bit positions in A to the same positions in B, the identity map. For example, if A has bits 4-7 set, and B has bits 9-12 set, then the map defined by the pair <A, B> maps each bit position in the first 32 bits as follows: 0 ==> 0 ... 3 ==> 3 4 ==> 9 ... 7 ==> 12 8 ==> 8 9 ==> 9 ... 31 ==> 31 This now corresponds to the typical behaviour desired when migrating pages and policies from one cpuset to another. The pages on nodes within the original cpuset, and the references in memory policies to nodes within the original cpuset, are migrated to the corresponding cpuset-relative nodes in the destination cpuset. Other pages and node references are left untouched. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] DEBUG_SLAB depends on SLABIngo Molnar2006-01-081-1/+1
| | | | | | | | | Make DEBUG_SLAB depend on SLAB. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] radix-tree: reduce tree height upon partial truncationNick Piggin2006-01-081-10/+36
| | | | | | | | | Shrink the height of a radix tree when it is partially truncated - we only do shrinkage of full truncation at present. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] radix tree: early termination of tag clearingNick Piggin2006-01-081-17/+23
| | | | | | | | | | | | | | | | Correctly determine the tags to be cleared in radix_tree_delete() so we don't keep moving up the tree clearing tags that we don't need to. For example, if a tag is simply not set in the deleted item, nor anywhere up the tree, radix_tree_delete() would attempt to clear it up the entire height of the tree. Also, tag_set() was made conditional so as not to dirty too many cachelines high up in the radix tree. Instead, put this logic into radix_tree_tag_set(). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] radix tree: code consolidationNick Piggin2006-01-081-31/+26
| | | | | | | | | Introduce helper any_tag_set() rather than repeat the same code sequence 4 times. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] frv: implement and export various things required by modulesDavid Howells2006-01-081-0/+3
| | | | | | | | | | | | | | | Export a number of features required to build all the modules. It also implements the following simple features: (*) csum_partial_copy_from_user() for MMU as well as no-MMU. (*) __ucmpdi2(). so that they can be exported too. 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] s390: cleanup KconfigMartin Schwidefsky2006-01-061-1/+1
| | | | | | | | | | Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X, ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by S390, 64BIT and COMPAT. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Cleanup bootmem allocator and fix alloc_bootmem_lowRavikiran G Thirumalai2006-01-061-2/+1
| | | | | | | | | | Patch cleans up the alloc_bootmem fix for swiotlb. Patch removes alloc_bootmem_*_limit api and fixes alloc_boot_*low api to do the right thing -- allocate from low32 memory. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: remove bad_rangeNick Piggin2006-01-061-1/+2
| | | | | | | | | | | | | bad_range is supposed to be a temporary check. It would be a pity to throw it out. Make it depend on CONFIG_DEBUG_VM instead. CONFIG_HOLES_IN_ZONE systems were relying on this to check pfn_valid in the page allocator. Add that to page_is_buddy instead. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kobject_uevent CONFIG_NET=n fixakpm@osdl.org2006-01-041-3/+1
| | | | | | | | | | | | | | | | | | | | | | | lib/lib.a(kobject_uevent.o)(.text+0x25f): In function `kobject_uevent': : undefined reference to `__alloc_skb' lib/lib.a(kobject_uevent.o)(.text+0x2a1): In function `kobject_uevent': : undefined reference to `skb_over_panic' lib/lib.a(kobject_uevent.o)(.text+0x31d): In function `kobject_uevent': : undefined reference to `skb_over_panic' lib/lib.a(kobject_uevent.o)(.text+0x356): In function `kobject_uevent': : undefined reference to `netlink_broadcast' lib/lib.a(kobject_uevent.o)(.init.text+0x9): In function `kobject_uevent_init': : undefined reference to `netlink_kernel_create' make: *** [.tmp_vmlinux1] Error 1 Netlink is unconditionally enabled if CONFIG_NET, so that's OK. kobject_uevent.o is compiled even if !CONFIG_HOTPLUG, which is lazy. Let's compound the sin. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] klist: Fix broken kref counting in find functionsFrank Pavlic2006-01-041-0/+2
| | | | | | | | | | | | | | | | | | | | The klist reference counting in the find functions that use klist_iter_init_node is broken. If the function (for example driver_find_device) is called with a NULL start object then everything is fine, the first call to next_device()/klist_next increases the ref-count of the first node on the list and does nothing for the start object which is NULL. If they are called with a valid start object then klist_next will decrement the ref-count for the start object but nobody has incremented it. Logical place to fix this would be klist_iter_init_node because the function puts a reference of the object into the klist_iter struct. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Frank Pavlic <pavlic@de.ibm.com> Cc: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] driver core: replace "hotplug" by "uevent"Kay Sievers2006-01-042-34/+34
| | | | | | | | | Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] merge kobject_uevent and kobject_hotplugKay Sievers2006-01-041-184/+95
| | | | | | | | | | | | | | | | | | | | The distinction between hotplug and uevent does not make sense these days, netlink events are the default. udev depends entirely on netlink uevents. Only during early boot and in initramfs, /sbin/hotplug is needed. So merge the two functions and provide only one interface without all the options. The netlink layer got a nice generic interface with named slots recently, which is probably a better facility to plug events for subsystem specific events. Also the new poll() interface to /proc/mounts is a nicer way to notify about changes than sending events through the core. The uevents should only be used for driver core related requests to userspace now. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] remove mount/umount uevents from superblock handlingKay Sievers2006-01-041-4/+0
| | | | | | | | | | | | The names of these events have been confusing from the beginning on, as they have been more like claim/release events. We needed these events for noticing HAL if storage devices have been mounted. Thanks to Al, we have the proper solution now and can poll() /proc/mounts instead to get notfied about mount tree changes. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] remove CONFIG_KOBJECT_UEVENT optionKay Sievers2006-01-041-19/+5
| | | | | | | | | It makes zero sense to have hotplug, but not the netlink events enabled today. Remove this option and merge the kobject_uevent.h header into the kobject.h header file. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] fix spinlock-debugging smp_processor_id() usageIngo Molnar2005-12-201-8/+10
| | | | | | | | | | | | | When a spinlock debugging check hits, we print the CPU number as an informational thing - but there is no guarantee that preemption is off at that point - hence we should use raw_smp_processor_id(). Otherwise DEBUG_PREEMPT will print a warning. With this fix the warning goes away and only the spinlock-debugging info is printed. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix swiotlb pci_map_sg error handlingAndi Kleen2005-12-201-2/+3
| | | | | | | | | | | | | The overflow checking condition in lib/swiotlb.c was wrong. It would first run a NULL pointer through virt_to_phys before testing it. Since pci_map_sg overflow is not that uncommon and causes data corruption (including broken file systems) when not properly detected I think it's better to fix it in 2.6.15. This affects x86-64 and IA64. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix broken lib/genalloc.cChris Humbert2005-11-281-8/+6
| | | | | | | | | | genalloc improperly stores the sizes of freed chunks, allocates overlapping memory regions, and oopses after its in-band data is overwritten. Signed-off-by: Chris Humbert <mahadri-kernel@drigon.com> Cc: Jes Sorensen <jes@trained-monkey.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6Linus Torvalds2005-11-074-58/+58
|\ | | | | | | Some manual fixups for clashing kfree() cleanups etc.
| * [LIB] reed_solomon: Clean up trailing white spacesThomas Gleixner2005-11-074-58/+58
| |
* | [PATCH] reiser4: add radix_tree_lookup_slot()Hans Reiser2005-11-071-13/+38
|/ | | | | | | | | | | | | | Reiser4 uses radix trees to solve a trouble reiser4_readdir has serving nfs requests. Unfortunately, radix tree api lacks an operation suitable for modifying existing entry. This patch adds radix_tree_lookup_slot which returns pointer to found item within the tree. That location can be then updated. Both Nick and Christoph Lameter have patches which need this as well. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* manual update from upstream:Tony Luck2005-10-3113-97/+291
|\ | | | | | | | | | | | | Applied Al's change 06a544971fad0992fe8b92c5647538d573089dd4 to new location of swiotlb.c Signed-off-by: Tony Luck <tony.luck@intel.com>
| * Merge ../linux-2.6 by handPaul Mackerras2005-10-3111-95/+277
| |\
| | * [PATCH] fix missing includesTim Schmielau2005-10-304-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| | * [PATCH] lib/string.c cleanup: restore useful memmove constPaul Jackson2005-10-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A couple of (char *) casts removed in a previous cleanup patch in lib/string.c:memmove() were actually useful, as they suppressed a couple of warnings: assignment discards qualifiers from pointer target type Fix by declaring the local variable const in the first place, so casts aren't needed to strip the const qualifier. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| | * [PATCH] RCU torture-testing kernel modulePaul E. McKenney2005-10-301-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is a rewrite of the one submitted on October 1st, using modules (http://marc.theaimsgroup.com/?l=linux-kernel&m=112819093522998&w=2). This rewrite adds a tristate CONFIG_RCU_TORTURE_TEST, which enables an intense torture test of the RCU infratructure. This is needed due to the continued changes to the RCU infrastructure to accommodate dynamic ticks, CPU hotplug, realtime, and so on. Most of the code is in a separate file that is compiled only if the CONFIG variable is set. Documentation on how to run the test and interpret the output is also included. This code has been tested on i386 and ppc64, and an earlier version of the code has received extensive testing on a number of architectures as part of the PREEMPT_RT patchset. Signed-off-by: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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