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2011-03-09xen/gntdev,gntalloc: Remove unneeded VM flagsDaniel De Graaf
The only time when granted pages need to be treated specially is when using Xen's PTE modification for grant mappings owned by another domain (that is, only gntdev on PV guests). Otherwise, the area does not require VM_DONTCOPY and VM_PFNMAP, since it can be accessed just like any other page of RAM. Since the vm_operations_struct close operations decrement reference counts, a corresponding open function that increments them is required now that it is possible to have multiple references to a single area. We are careful in the gntdev to check if we can remove those flags. The reason that we need to be careful in gntdev on PV guests is because we are not changing the PFN/MFN mapping on PV; instead, we change the application's page tables to point to the other domain's memory. This means that the vma cannot be copied without using another grant mapping hypercall; it also requires special handling on unmap, which is the reason for gntdev's dependency on the MMU notifier. For gntalloc, this is not a concern - the pages are owned by the domain using the gntalloc device, and can be mapped and unmapped in the same manner as any other page of memory. Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v2: Added in git commit "We are.." from email correspondence]
2011-03-09xen: gntdev: fix build warningIan Campbell
addr is actually a virtual address so use an unsigned long. Fixes: CC drivers/xen/gntdev.o drivers/xen/gntdev.c: In function 'map_grant_pages': drivers/xen/gntdev.c:268: warning: cast from pointer to integer of different size Reduce the scope of the variable at the same time. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-03-09xen/p2m/m2p/gnttab: do not add failed grant maps to m2p overrideIan Campbell
The caller will not undo a mapping which failed and therefore the override will not be removed. This is especially bad in the case of GNTMAP_contains_pte mapping type mappings where m2p_add_override will destroy the kernel mapping of the page. This was observed via a failure of map_grant_pages in gntdev_mmap (due to userspace using a bad grant reference), which left the page in question unmapped (because it was a GNTMAP_contains_pte mapping) which led to a crash later on. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Daniel De Graaf <dgdegra@tycho.nsa.gov> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-23xen-gntdev: Add cast to pointerDaniel De Graaf
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-23xen-gntdev: Fix incorrect use of zero handleDaniel De Graaf
The handle with numeric value 0 is a valid map handle, so it cannot be used to indicate that a page has not been mapped. Use -1 instead. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-16xen: change xen/[gntdev/gntalloc] to default mStefano Stabellini
When CONFIG_XEN is enabled the gntdev and gntalloc driver will be compiled as a module by default. [v2: Added the fix for the gntalloc driver as well] Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: prevent using UNMAP_NOTIFY_CLEAR_BYTE on read-only mappingsDaniel De Graaf
Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Avoid double-mapping memoryDaniel De Graaf
If an already-mapped area of the device was mapped into userspace a second time, a hypercall was incorrectly made to remap the memory again. Avoid the hypercall on later mmap calls, and fail the mmap call if a writable mapping is attempted on a read-only range. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Avoid unmapping ranges twiceDaniel De Graaf
In paravirtualized domains, mn_invl_page or mn_invl_range_start can unmap a segment of a mapped region without unmapping all pages. When the region is later released, the pages will be unmapped twice, leading to an incorrect -EINVAL return. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Use map->vma for checking map validityDaniel De Graaf
The is_mapped flag used to be set at the completion of the map operation, but was not checked in all error paths. Use map->vma instead, which will now be cleared if the initial grant mapping fails. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Fix unmap notify on PV domainsDaniel De Graaf
In paravirtualized guests, the struct page* for mappings is only a placeholder, and cannot be used to access the granted memory. Use the userspace mapping that we have set up in order to implement UNMAP_NOTIFY_CLEAR_BYTE. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Fix memory leak when mmap failsDaniel De Graaf
The error path did not decrement the reference count of the grant structure. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen/gntalloc,gntdev: Add unmap notify ioctlDaniel De Graaf
This ioctl allows the users of a shared page to be notified when the other end exits abnormally. [v2: updated description in structs] Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntalloc: Userspace grant allocation driverDaniel De Graaf
This allows a userspace application to allocate a shared page for implementing inter-domain communication or device drivers. These shared pages can be mapped using the gntdev device or by the kernel in another domain. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Support mapping in HVM domainsDaniel De Graaf
HVM does not allow direct PTE modification, so instead we request that Xen change its internal p2m mappings on the allocated pages and map the memory into userspace normally. Note: The HVM path for map and unmap is slightly different: HVM keeps the pages mapped until the area is deleted, while the PV case (use_ptemod being true) must unmap them when userspace unmaps the range. In the normal use case, this makes no difference to users since unmap time is deletion time. [v2: Expanded commit descr.] Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Add reference counting to mapsDaniel De Graaf
This allows userspace to perform mmap() on the gntdev device and then immediately close the filehandle or remove the mapping using the remove ioctl, with the mapped area remaining valid until unmapped. This also fixes an infinite loop when a gntdev device is closed without first unmapping all areas. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Use find_vma rather than iterating our vma list manuallyDaniel De Graaf
This should be faster if many mappings exist, and also removes the only user of map->vma not related to PTE modification. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-14xen-gntdev: Change page limit to be global instead of per-openDaniel De Graaf
Because there is no limitation on how many times a user can open a given device file, an per-file-description limit on the number of pages granted offers little to no benefit. Change to a global limit and remove the ioctl() as the parameter can now be changed via sysfs. Xen tools changeset 22768:f8d801e5573e is needed to eliminate the error this change produces in xc_gnttab_set_max_grants. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-02-07Linux 2.6.38-rc4v2.6.38-rc4Linus Torvalds
2011-02-07Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ALSA: AACI: allow writes to MAINCR to take effect ARM: Update mach-types ARM: 6652/1: ep93xx: correct the end address of the AC97 memory resource ARM: mxs/imx28: remove now unused clock lookup "fec.0" ARM: mxs: fix clock base address missing ARM: mxs: acknowledge gpio irq ARM: mach-imx/mach-mx25_3ds: Fix section type ARM: imx: Add VPR200 and MX51_3DS entries to uncompress.h ARM i.MX23: use correct register for setting the rate ARM i.MX23/28: remove secondary field from struct clk. It's unused ARM i.MX28: use correct register for setting the rate ARM i.MX28: fix bit operation
2011-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (33 commits) Btrfs: Fix page count calculation btrfs: Drop __exit attribute on btrfs_exit_compress btrfs: cleanup error handling in btrfs_unlink_inode() Btrfs: exclude super blocks when we read in block groups Btrfs: make sure search_bitmap finds something in remove_from_bitmap btrfs: fix return value check of btrfs_start_transaction() btrfs: checking NULL or not in some functions Btrfs: avoid uninit variable warnings in ordered-data.c Btrfs: catch errors from btrfs_sync_log Btrfs: make shrink_delalloc a little friendlier Btrfs: handle no memory properly in prepare_pages Btrfs: do error checking in btrfs_del_csums Btrfs: use the global block reserve if we cannot reserve space Btrfs: do not release more reserved bytes to the global_block_rsv than we need Btrfs: fix check_path_shared so it returns the right value btrfs: check return value of btrfs_start_ioctl_transaction() properly btrfs: fix return value check of btrfs_join_transaction() fs/btrfs/inode.c: Add missing IS_ERR test btrfs: fix missing break in switch phrase btrfs: fix several uncheck memory allocations ...
2011-02-07Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix hcall tracepoint recursion powerpc/numa: Fix bug in unmap_cpu_from_node powerpc/numa: Disable VPHN on dedicated processor partitions powerpc/numa: Add length when creating OF properties via VPHN powerpc/numa: Check for all VPHN changes powerpc/numa: Only use active VPHN count fields powerpc/pseries: Remove unnecessary variable initializations in numa.c powerpc/pseries: Fix brace placement in numa.c powerpc/pseries: Fix typo in VPHN comments powerpc: Fix some 6xx/7xxx CPU setup functions powerpc: Pass the right cpu_spec to ->setup_cpu() on 64-bit powerpc/book3e: Protect complex macro args in mmu-book3e.h powerpc: Fix pfn_valid() when memory starts at a non-zero address
2011-02-07Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: arm: omap4: panda: remove usb_nop_xceiv_register(v1) OMAP1: Fix non-working LCD on OMAP310 OMAP3: Devkit8000: Change lcd power pin omap1: remove duplicated #include arm: mach-omap2: mux: free allocated memory on error exit arm: mach-omap2: board-rm680: fix rm680_vemmc regulator constraints OMAP: PM: SmartReflex: Fix possible null pointer read access OMAP: PM: SmartReflex: Fix possible memory leak arm: mach-omap2: voltage: debugfs: fix memory leak OMAP3: PM: fix save secure RAM to restore MPU power state OMAP: PM: SmartReflex: Add missing IS_ERR test
2011-02-07Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
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, nx: Mark the ACPI resume trampoline code as +x
2011-02-07CRED: Fix memory and refcount leaks upon security_prepare_creds() failureTetsuo Handa
In prepare_kernel_cred() since 2.6.29, put_cred(new) is called without assigning new->usage when security_prepare_creds() returned an error. As a result, memory for new and refcount for new->{user,group_info,tgcred} are leaked because put_cred(new) won't call __put_cred() unless old->usage == 1. Fix these leaks by assigning new->usage (and new->subscribers which was added in 2.6.32) before calling security_prepare_creds(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-07CRED: Fix BUG() upon security_cred_alloc_blank() failureTetsuo Handa
In cred_alloc_blank() since 2.6.32, abort_creds(new) is called with new->security == NULL and new->magic == 0 when security_cred_alloc_blank() returns an error. As a result, BUG() will be triggered if SELinux is enabled or CONFIG_DEBUG_CREDENTIALS=y. If CONFIG_DEBUG_CREDENTIALS=y, BUG() is called from __invalid_creds() because cred->magic == 0. Failing that, BUG() is called from selinux_cred_free() because selinux_cred_free() is not expecting cred->security == NULL. This does not affect smack_cred_free(), tomoyo_cred_free() or apparmor_cred_free(). Fix these bugs by (1) Set new->magic before calling security_cred_alloc_blank(). (2) Handle null cred->security in creds_are_invalid() and selinux_cred_free(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: remove checks for ses->status == CifsExiting cifs: add check for kmalloc in parse_dacl cifs: don't send an echo request unless NegProt has been done cifs: enable signing flag in SMB header when server has it on cifs: Possible slab memory corruption while updating extended stats (repost) CIFS: Fix variable types in cifs_iovec_read/write (try #2) cifs: fix length vs. total_read confusion in cifs_demultiplex_thread
2011-02-07Btrfs: Fix page count calculationYan, Zheng
take offset of start position into account when calculating page count. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-02-07Merge branch 'fixes'Russell King
2011-02-07cifs: remove checks for ses->status == CifsExitingJeff Layton
ses->status is never set to CifsExiting, so these checks are always false. Tested-by: JG <jg@cms.ac> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-02-07Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into fixesRussell King
2011-02-07ALSA: AACI: allow writes to MAINCR to take effectRussell King
The AACI TRM requires the MAINCR enable bit to be held zero for two bitclk cycles plus three apb_pclk cycles. Use a delay of 1us to ensure this. Ensure that writes to MAINCR to change the addressed codec only happen when required, and that they take effect in a similar manner to the above, otherwise we seem to occasionally have stuck slot busy bits. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-07ARM: Update mach-typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-07x86, nx: Mark the ACPI resume trampoline code as +xH. Peter Anvin
We reserve lowmem for the things that need it, like the ACPI wakeup code, way early to guarantee availability. This happens before we set up the proper pagetables, so set_memory_x() has no effect. Until we have a better solution, use an initcall to mark the wakeup code executable. Originally-by: Matthieu Castet <castet.matthieu@free.fr> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Matthias Hopf <mhopf@suse.de> Cc: rjw@sisk.pl Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <4D4F8019.2090104@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-07powerpc: Fix hcall tracepoint recursionAnton Blanchard
Spinlocks on shared processor partitions use H_YIELD to notify the hypervisor we are waiting on another virtual CPU. Unfortunately this means the hcall tracepoints can recurse. The patch below adds a percpu depth and checks it on both the entry and exit hcall tracepoints. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org
2011-02-07powerpc/numa: Fix bug in unmap_cpu_from_nodeAnton Blanchard
When converting to the new cpumask code I screwed up: - if (cpu_isset(cpu, numa_cpumask_lookup_table[node])) { - cpu_clear(cpu, numa_cpumask_lookup_table[node]); + if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) { + cpumask_set_cpu(cpu, node_to_cpumask_map[node]); This was introduced in commit 25863de07af9 (powerpc/cpumask: Convert NUMA code to new cpumask API) Fix it. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: <stable@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/numa: Disable VPHN on dedicated processor partitionsAnton Blanchard
There is no need to start up the timer and monitor topology changes on a dedicated processor partition, so disable it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/numa: Add length when creating OF properties via VPHNAnton Blanchard
The rest of the NUMA code expects an OF associativity property with the first cell containing the length. Without this fix all topology changes cause us to misparse the property and put the cpu into node 0. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/numa: Check for all VPHN changesAnton Blanchard
The hypervisor uses unsigned 1 byte counters to signal topology changes to the OS. Since they can wrap we need to check for any difference, not just if the hypervisor count is greater than the previous count. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/numa: Only use active VPHN count fieldsAnton Blanchard
VPHN supports up to 8 distance fields but the number of entries in ibm,associativity-reference-points signifies how many are in use. Don't look at all the VPHN counts, only distance_ref_points_depth worth. Since we already cap our distance metrics at MAX_DISTANCE_REF_POINTS, use that to size the VPHN arrays and add a BUILD_BUG_ON to avoid it growing larger than the VPHN maximum of 8. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/pseries: Remove unnecessary variable initializations in numa.cJesse Larrew
Remove unnecessary variable initializations in VPHN functions. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/pseries: Fix brace placement in numa.cJesse Larrew
Fix brace placement in VPHN code. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/pseries: Fix typo in VPHN commentsJesse Larrew
Correct a spelling error in VPHN comments in numa.c. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc: Fix some 6xx/7xxx CPU setup functionsBenjamin Herrenschmidt
Some of those functions try to adjust the CPU features, for example to remove NAP support on some revisions. However, they seem to use r5 as an index into the CPU table entry, which might have been right a long time ago but no longer is. r4 is the right register to use. This probably caused some off behaviours on some PowerMac variants using 750cx or 7455 processor revisions. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org
2011-02-07powerpc: Pass the right cpu_spec to ->setup_cpu() on 64-bitBenjamin Herrenschmidt
When calling setup_cpu() on 64-bit, we pass a pointer to the cputable entry we have found. This used to be fine when cur_cpu_spec was a pointer to that entry, but nowadays, we copy the entry into a separate variable, and we do so before we call the setup_cpu() callback. That means that any attempt by that callback at patching the CPU table entry (to adjust CPU features for example) will patch the wrong table. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc/book3e: Protect complex macro args in mmu-book3e.hScott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-07powerpc: Fix pfn_valid() when memory starts at a non-zero addressScott Wood
max_mapnr is a pfn, not an index innto mem_map[]. So don't add ARCH_PFN_OFFSET a second time. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-02-06Merge branch 'ixp4xx' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 * 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: arm/ixp4xx: Rename FREQ macro to avoid collisions IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries.
2011-02-06Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: lockdep, timer: Fix del_timer_sync() annotation RTC: Prevents a division by zero in kernel code.
2011-02-06Merge branch 'irq-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: m32r: Fixup last __do_IRQ leftover genirq: Add missing status flags to modification mask
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