- 12 7月, 2012 40 次提交
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由 Linus Torvalds 提交于
Merge random patches from Andrew Morton. * Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (32 commits) memblock: free allocated memblock_reserved_regions later mm: sparse: fix usemap allocation above node descriptor section mm: sparse: fix section usemap placement calculation xtensa: fix incorrect memset shmem: cleanup shmem_add_to_page_cache shmem: fix negative rss in memcg memory.stat tmpfs: revert SEEK_DATA and SEEK_HOLE drivers/rtc/rtc-twl.c: fix threaded IRQ to use IRQF_ONESHOT fat: fix non-atomic NFS i_pos read MAINTAINERS: add OMAP CPUfreq driver to OMAP Power Management section sgi-xp: nested calls to spin_lock_irqsave() fs: ramfs: file-nommu: add SetPageUptodate() drivers/rtc/rtc-mxc.c: fix irq enabled interrupts warning mm/memory_hotplug.c: release memory resources if hotadd_new_pgdat() fails h8300/uaccess: add mising __clear_user() h8300/uaccess: remove assignment to __gu_val in unhandled case of get_user() h8300/time: add missing #include <asm/irq_regs.h> h8300/signal: fix typo "statis" h8300/pgtable: add missing #include <asm-generic/pgtable.h> drivers/rtc/rtc-ab8500.c: ensure correct probing of the AB8500 RTC when Device Tree is enabled ...
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由 Yinghai Lu 提交于
memblock_free_reserved_regions() calls memblock_free(), but memblock_free() would double reserved.regions too, so we could free the old range for reserved.regions. Also tj said there is another bug which could be related to this. | I don't think we're saving any noticeable | amount by doing this "free - give it to page allocator - reserve | again" dancing. We should just allocate regions aligned to page | boundaries and free them later when memblock is no longer in use. in that case, when DEBUG_PAGEALLOC, will get panic: memblock_free: [0x0000102febc080-0x0000102febf080] memblock_free_reserved_regions+0x37/0x39 BUG: unable to handle kernel paging request at ffff88102febd948 IP: [<ffffffff836a5774>] __next_free_mem_range+0x9b/0x155 PGD 4826063 PUD cf67a067 PMD cf7fa067 PTE 800000102febd160 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU 0 Pid: 0, comm: swapper Not tainted 3.5.0-rc2-next-20120614-sasha #447 RIP: 0010:[<ffffffff836a5774>] [<ffffffff836a5774>] __next_free_mem_range+0x9b/0x155 See the discussion at https://lkml.org/lkml/2012/6/13/469 So try to allocate with PAGE_SIZE alignment and free it later. Reported-by: NSasha Levin <levinsasha928@gmail.com> Acked-by: NTejun Heo <tj@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yinghai Lu 提交于
After commit f5bf18fa ("bootmem/sparsemem: remove limit constraint in alloc_bootmem_section"), usemap allocations may easily be placed outside the optimal section that holds the node descriptor, even if there is space available in that section. This results in unnecessary hotplug dependencies that need to have the node unplugged before the section holding the usemap. The reason is that the bootmem allocator doesn't guarantee a linear search starting from the passed allocation goal but may start out at a much higher address absent an upper limit. Fix this by trying the allocation with the limit at the section end, then retry without if that fails. This keeps the fix from f5bf18fa of not panicking if the allocation does not fit in the section, but still makes sure to try to stay within the section at first. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NJohannes Weiner <hannes@cmpxchg.org> Cc: <stable@vger.kernel.org> [3.3.x, 3.4.x] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yinghai Lu 提交于
Commit 238305bb ("mm: remove sparsemem allocation details from the bootmem allocator") introduced a bug in the allocation goal calculation that put section usemaps not in the same section as the node descriptors, creating unnecessary hotplug dependencies between them: node 0 must be removed before remove section 16399 node 1 must be removed before remove section 16399 node 2 must be removed before remove section 16399 node 3 must be removed before remove section 16399 node 4 must be removed before remove section 16399 node 5 must be removed before remove section 16399 node 6 must be removed before remove section 16399 The reason is that it applies PAGE_SECTION_MASK to the physical address of the node descriptor when finding a suitable place to put the usemap, when this mask is actually intended to be used with PFNs. Because the PFN mask is wider, the target address will point beyond the wanted section holding the node descriptor and the node must be offlined before the section holding the usemap can go. Fix this by extending the mask to address width before use. Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NJohannes Weiner <hannes@cmpxchg.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alan Cox 提交于
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=43871 Reported-by: <dcb314@hotmail.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NChris Zankel <chris@zankel.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
shmem_add_to_page_cache() has three callsites, but only one of them wants the radix_tree_preload() (an exceptional entry guarantees that the radix tree node is present in the other cases), and only that site can achieve mem_cgroup_uncharge_cache_page() (PageSwapCache makes it a no-op in the other cases). We did it this way originally to reflect add_to_page_cache_locked(); but it's confusing now, so move the radix_tree preloading and mem_cgroup uncharging to that one caller. Signed-off-by: NHugh Dickins <hughd@google.com> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
When adding the page_private checks before calling shmem_replace_page(), I did realize that there is a further race, but thought it too unlikely to need a hurried fix. But independently I've been chasing why a mem cgroup's memory.stat sometimes shows negative rss after all tasks have gone: I expected it to be a stats gathering bug, but actually it's shmem swapping's fault. It's an old surprise, that when you lock_page(lookup_swap_cache(swap)), the page may have been removed from swapcache before getting the lock; or it may have been freed and reused and be back in swapcache; and it can even be using the same swap location as before (page_private same). The swapoff case is already secure against this (swap cannot be reused until the whole area has been swapped off, and a new swapped on); and shmem_getpage_gfp() is protected by shmem_add_to_page_cache()'s check for the expected radix_tree entry - but a little too late. By that time, we might have already decided to shmem_replace_page(): I don't know of a problem from that, but I'd feel more at ease not to do so spuriously. And we have already done mem_cgroup_cache_charge(), on perhaps the wrong mem cgroup: and this charge is not then undone on the error path, because PageSwapCache ends up preventing that. It's this last case which causes the occasional negative rss in memory.stat: the page is charged here as cache, but (sometimes) found to be anon when eventually it's uncharged - and in between, it's an undeserved charge on the wrong memcg. Fix this by adding an earlier check on the radix_tree entry: it's inelegant to descend the tree twice, but swapping is not the fast path, and a better solution would need a pair (try+commit) of memcg calls, and a rework of shmem_replace_page() to keep out of the swapcache. We can use the added shmem_confirm_swap() function to replace the find_get_page+page_cache_release we were already doing on the error path. And add a comment on that -EEXIST: it seems a peculiar errno to be using, but originates from its use in radix_tree_insert(). [It can be surprising to see positive rss left in a memcg's memory.stat after all tasks have gone, since it is supposed to count anonymous but not shmem. Aside from sharing anon pages via fork with a task in some other memcg, it often happens after swapping: because a swap page can't be freed while under writeback, nor while locked. So it's not an error, and these residual pages are easily freed once pressure demands.] Signed-off-by: NHugh Dickins <hughd@google.com> Acked-by: NJohannes Weiner <hannes@cmpxchg.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Hugh Dickins 提交于
Revert 4fb5ef08 ("tmpfs: support SEEK_DATA and SEEK_HOLE"). I believe it's correct, and it's been nice to have from rc1 to rc6; but as the original commit said: I don't know who actually uses SEEK_DATA or SEEK_HOLE, and whether it would be of any use to them on tmpfs. This code adds 92 lines and 752 bytes on x86_64 - is that bloat or worthwhile? Nobody asked for it, so I conclude that it's bloat: let's revert tmpfs to the dumb generic support for v3.5. We can always reinstate it later if useful, and anyone needing it in a hurry can just get it out of git. Signed-off-by: NHugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Josef Bacik <josef@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Andreas Dilger <adilger@dilger.ca> Cc: Dave Chinner <david@fromorbit.com> Cc: Marco Stornelli <marco.stornelli@gmail.com> Cc: Jeff liu <jeff.liu@oracle.com> Cc: Chris Mason <chris.mason@fusionio.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kevin Hilman 提交于
Requesting a threaded interrupt without a primary handler and without IRQF_ONESHOT is dangerous, and after commit 1c6c6952 ("genirq: Reject bogus threaded irq requests"), these requests are rejected. This causes ->probe() to fail, and the RTC driver not to be availble. To fix, add IRQF_ONESHOT to the IRQ flags. Tested on OMAP3730/OveroSTORM and OMAP4430/Panda board using rtcwake to wake from system suspend multiple times. Signed-off-by: NKevin Hilman <khilman@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Steven J. Magnani 提交于
fat_encode_fh() can fetch an invalid i_pos value on systems where 64-bit accesses are not atomic. Make it use the same accessor as the rest of the FAT code. Signed-off-by: NSteven J. Magnani <steve@digidescorp.com> Acked-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kevin Hilman 提交于
Add the OMAP CPUFreq driver to the list of files in the OMAP Power Management section. I've already been maintaining this driver, this just makes it official. Signed-off-by: NKevin Hilman <khilman@ti.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dan Carpenter 提交于
The code here has a nested spin_lock_irqsave(). It's not needed since IRQs are already disabled and it causes a problem because it means that IRQs won't be enabled again at the end. The second call to spin_lock_irqsave() will overwrite the value of irq_flags and we can't restore the proper settings. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NRobin Holt <holt@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Bob Liu 提交于
There is a bug in the below scenario for !CONFIG_MMU: 1. create a new file 2. mmap the file and write to it 3. read the file can't get the correct value Because sys_read() -> generic_file_aio_read() -> simple_readpage() -> clear_page() which causes the page to be zeroed. Add SetPageUptodate() to ramfs_nommu_expand_for_mapping() so that generic_file_aio_read() do not call simple_readpage(). Signed-off-by: NBob Liu <lliubbo@gmail.com> Cc: Hugh Dickins <hughd@google.com> Cc: David Howells <dhowells@redhat.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@uclinux.org> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Benoît Thébaudeau 提交于
Fixes WARNING: at irq/handle.c:146 handle_irq_event_percpu+0x19c/0x1b8() irq 25 handler mxc_rtc_interrupt+0x0/0xac enabled interrupts Modules linked in: (unwind_backtrace+0x0/0xf0) from (warn_slowpath_common+0x4c/0x64) (warn_slowpath_common+0x4c/0x64) from (warn_slowpath_fmt+0x30/0x40) (warn_slowpath_fmt+0x30/0x40) from (handle_irq_event_percpu+0x19c/0x1b8) (handle_irq_event_percpu+0x19c/0x1b8) from (handle_irq_event+0x28/0x38) (handle_irq_event+0x28/0x38) from (handle_level_irq+0x80/0xc4) (handle_level_irq+0x80/0xc4) from (generic_handle_irq+0x24/0x38) (generic_handle_irq+0x24/0x38) from (handle_IRQ+0x30/0x84) (handle_IRQ+0x30/0x84) from (avic_handle_irq+0x2c/0x4c) (avic_handle_irq+0x2c/0x4c) from (__irq_svc+0x40/0x60) Exception stack(0xc050bf60 to 0xc050bfa8) bf60: 00000001 00000000 003c4208 c0018e20 c050a000 c050a000 c054a4c8 c050a000 bf80: c05157a8 4117b363 80503bb4 00000000 01000000 c050bfa8 c0018e2c c000e808 bfa0: 60000013 ffffffff (__irq_svc+0x40/0x60) from (default_idle+0x1c/0x30) (default_idle+0x1c/0x30) from (cpu_idle+0x68/0xa8) (cpu_idle+0x68/0xa8) from (start_kernel+0x22c/0x26c) Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Wen Congyang 提交于
We should goto error to release memory resource if hotadd_new_pgdat() failed. Signed-off-by: NWen Congyang <wency@cn.fujitsu.com> Cc: Yasuaki ISIMATU <isimatu.yasuaki@jp.fujitsu.com> Acked-by: NDavid Rientjes <rientjes@google.com> Cc: Len Brown <lenb@kernel.org> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the build error: include/linux/regset.h: In function 'user_regset_copyout_zero': include/linux/regset.h:289:3: error: implicit declaration of function '__clear_user' [-Werror=implicit-function-declaration] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
__gu_val is const if the passed ptr is const, giving: include/linux/pagemap.h: In function 'fault_in_pages_readable': include/linux/pagemap.h:442:2: error: assignment of read-only variable '__gu_val' include/linux/pagemap.h:448:4: error: assignment of read-only variable '__gu_val' include/linux/pagemap.h: In function 'fault_in_multipages_readable': include/linux/pagemap.h:499:3: error: assignment of read-only variable '__gu_val' include/linux/pagemap.h:508:3: error: assignment of read-only variable '__gu_val' make[4]: *** [init/main.o] Error 1 As we don't care about the actual value of __gu_val in the unhandled case (it will cause a link error anyway), just remove the assignment. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the build error: arch/h8300/kernel/time.c: In function 'h8300_timer_tick': arch/h8300/kernel/time.c:39:2: error: implicit declaration of function 'get_irq_regs' [-Werror=implicit-function-declaration] arch/h8300/kernel/time.c:39:42: error: invalid type argument of '->' (have 'int') Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
The keyword is "static", not "statis": arch/h8300/kernel/signal.c:455:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void' arch/h8300/kernel/signal.c: In function 'do_notify_resume': arch/h8300/kernel/signal.c:511:3: error: implicit declaration of function 'do_signal' [-Werror=implicit-function-declaration] arch/h8300/kernel/signal.c: At top level: arch/h8300/kernel/signal.c:414:1: warning: 'handle_signal' defined but not used [-Wunused-function] Introduced in commit 7ae4e32a ("h8300: switch to saved_sigmask-based sigsuspend/rt_sigsuspend") Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the h8300 build error: kernel/sched/core.c: In function 'context_switch': kernel/sched/core.c:2061:2: error: implicit declaration of function 'arch_start_context_switch' [-Werror=implicit-function-declaration] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lee Jones 提交于
Without this patch, if Device Tree is enabled the AB8500 RTC wouldn't get probed at all, as there is no reference to it from platform code. This patch ensures the driver is probed during normal DT start-up. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: NLee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lee Jones 提交于
This driver's IRQ registration is failing because the kernel now forces IRQs to be ONESHOT if no IRQ handler is passed. Signed-off-by: NLee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Rientjes 提交于
If page migration cannot charge the temporary page to the memcg, migrate_pages() will return -ENOMEM. This isn't considered in memory compaction however, and the loop continues to iterate over all pageblocks trying to isolate and migrate pages. If a small number of very large memcgs happen to be oom, however, these attempts will mostly be futile leading to an enormous amout of cpu consumption due to the page migration failures. This patch will short circuit and fail memory compaction if migrate_pages() returns -ENOMEM. COMPACT_PARTIAL is returned in case some migrations were successful so that the page allocator will retry. Signed-off-by: NDavid Rientjes <rientjes@google.com> Acked-by: NMel Gorman <mgorman@suse.de> Cc: Minchan Kim <minchan@kernel.org> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Rik van Riel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Konstantin Khlebnikov 提交于
"no other files mapped" requirement from my previous patch (c/r: prctl: update prctl_set_mm_exe_file() after mm->num_exe_file_vmas removal) is too paranoid, it forbids operation even if there mapped one shared-anon vma. Let's check that current mm->exe_file already unmapped, in this case exe_file symlink already outdated and its changing is reasonable. Plus, this patch fixes exit code in case operation success. Signed-off-by: NKonstantin Khlebnikov <khlebnikov@openvz.org> Reported-by: NCyrill Gorcunov <gorcunov@openvz.org> Tested-by: NCyrill Gorcunov <gorcunov@openvz.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Matt Helsley <matthltc@us.ibm.com> Cc: Kees Cook <keescook@chromium.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Luis Henriques 提交于
As ocfs2_fallocate() will invoke __ocfs2_change_file_space() with a NULL as the first parameter (file), it may trigger a NULL pointer dereferrence due to a missing check. Addresses http://bugs.launchpad.net/bugs/1006012Signed-off-by: NLuis Henriques <luis.henriques@canonical.com> Reported-by: NBret Towe <magnade@gmail.com> Tested-by: NBret Towe <magnade@gmail.com> Cc: Sunil Mushran <sunil.mushran@oracle.com> Acked-by: NJoel Becker <jlbec@evilplan.org> Acked-by: NMark Fasheh <mfasheh@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the warnings: arch/mn10300/kernel/irq.c:173:7: warning: "CONFIG_MN10300_TTYSM1_TIMER9" is not defined [-Wundef] arch/mn10300/kernel/irq.c:175:7: warning: "CONFIG_MN10300_TTYSM1_TIMER3" is not defined [-Wundef] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the warnings: arch/mn10300/mm/dma-alloc.c: At top level: arch/mn10300/mm/dma-alloc.c:63:1: warning: data definition has no type or storage class [enabled by default] arch/mn10300/mm/dma-alloc.c:63:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int] arch/mn10300/mm/dma-alloc.c:63:1: warning: parameter names (without types) in function declaration [enabled by default] arch/mn10300/mm/dma-alloc.c:75:1: warning: data definition has no type or storage class [enabled by default] arch/mn10300/mm/dma-alloc.c:75:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int] arch/mn10300/mm/dma-alloc.c:75:1: warning: parameter names (without types) in function declaration [enabled by default] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the warning: arch/mn10300/kernel/traps.c:304:1: warning: data definition has no type or storage class [enabled by default] arch/mn10300/kernel/traps.c:304:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int] arch/mn10300/kernel/traps.c:304:1: warning: parameter names (without types) in function declaration [enabled by default] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the nm10300 build failure: In file included from arch/mn10300/kernel/csrc-mn10300.c:14:0: arch/mn10300/kernel/internal.h:42:1: error: unknown type name 'irqreturn_t' Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Fix the warning: include/linux/ptrace.h:66:0: warning: "PTRACE_O_TRACESYSGOOD" redefined [enabled by default] arch/mn10300/include/asm/ptrace.h:85:0: note: this is the location of the previous definition We already have it in <linux/ptrace.h>, so remove it from <asm/ptrace.h> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Move the static inline function setup_jiffies_interrupt() from <asm/timex.h> to arch/mn10300/kernel/cevt-mn10300.c, which is its only callsite. This allows to remove the inclusion of <asm/hardirq.h> and <linux/irq.h> from <asm/timex.h> and <unit/timex.h>, fixing include hell like: include/linux/jiffies.h:260:31: warning: "CLOCK_TICK_RATE" is not defined [-Wundef] include/linux/jiffies.h:260:31: warning: "CLOCK_TICK_RATE" is not defined [-Wundef] include/linux/jiffies.h:46:42: error: division by zero in #if ... make[4]: *** [arch/mn10300/kernel/asm-offsets.s] Error 1 and (after a quick hack for the above by defining CLOCK_TICK_RATE in <linux/jiffies.h>): In file included from include/linux/notifier.h:15:0, from include/linux/memory_hotplug.h:6, from include/linux/mmzone.h:718, from include/linux/gfp.h:4, from include/linux/irq.h:20, from arch/mn10300/unit-asb2303/include/unit/timex.h:15, from arch/mn10300/include/asm/timex.h:15, from include/linux/timex.h:174, from include/linux/jiffies.h:8, from include/linux/ktime.h:25, from include/linux/timer.h:5, from include/linux/workqueue.h:8, include/linux/srcu.h:55:22: error: field 'work' has incomplete type As a consequence, we do need a few more inclusions of <asm/irq.h>, namely in arch/mn10300/unit-asb2303/smc91111.c and arch/mn10300/unit-asb2305/unit-init.c. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Devendra Naga 提交于
`config' is freed and is then used in the rtc_device_unregister() call, causing a kernel panic. Signed-off-by: NDevendra Naga <devendra.aaru@gmail.com> Reviewed-by: NViresh Kumar <viresh.linux@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiang Liu 提交于
kswapd_stop() is called to destroy the kswapd work thread when all memory of a NUMA node has been offlined. But kswapd_stop() only terminates the work thread without resetting NODE_DATA(nid)->kswapd to NULL. The stale pointer will prevent kswapd_run() from creating a new work thread when adding memory to the memory-less NUMA node again. Eventually the stale pointer may cause invalid memory access. An example stack dump as below. It's reproduced with 2.6.32, but latest kernel has the same issue. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81051a94>] exit_creds+0x12/0x78 PGD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/system/memory/memory391/state CPU 11 Modules linked in: cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq microcode fuse loop dm_mod tpm_tis rtc_cmos i2c_i801 rtc_core tpm serio_raw pcspkr sg tpm_bios igb i2c_core iTCO_wdt rtc_lib mptctl iTCO_vendor_support button dca bnx2 usbhid hid uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic ide_core ata_generic ata_piix libata thermal processor thermal_sys hwmon mptsas mptscsih mptbase scsi_transport_sas scsi_mod Pid: 7949, comm: sh Not tainted 2.6.32.12-qiuxishi-5-default #92 Tecal RH2285 RIP: 0010:exit_creds+0x12/0x78 RSP: 0018:ffff8806044f1d78 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff880604f22140 RCX: 0000000000019502 RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000000 RBP: ffff880604f22150 R08: 0000000000000000 R09: ffffffff81a4dc10 R10: 00000000000032a0 R11: ffff880006202500 R12: 0000000000000000 R13: 0000000000c40000 R14: 0000000000008000 R15: 0000000000000001 FS: 00007fbc03d066f0(0000) GS:ffff8800282e0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000060f029000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process sh (pid: 7949, threadinfo ffff8806044f0000, task ffff880603d7c600) Stack: ffff880604f22140 ffffffff8103aac5 ffff880604f22140 ffffffff8104d21e ffff880006202500 0000000000008000 0000000000c38000 ffffffff810bd5b1 0000000000000000 ffff880603d7c600 00000000ffffdd29 0000000000000003 Call Trace: __put_task_struct+0x5d/0x97 kthread_stop+0x50/0x58 offline_pages+0x324/0x3da memory_block_change_state+0x179/0x1db store_mem_state+0x9e/0xbb sysfs_write_file+0xd0/0x107 vfs_write+0xad/0x169 sys_write+0x45/0x6e system_call_fastpath+0x16/0x1b Code: ff 4d 00 0f 94 c0 84 c0 74 08 48 89 ef e8 1f fd ff ff 5b 5d 31 c0 41 5c c3 53 48 8b 87 20 06 00 00 48 89 fb 48 8b bf 18 06 00 00 <8b> 00 48 c7 83 18 06 00 00 00 00 00 00 f0 ff 0f 0f 94 c0 84 c0 RIP exit_creds+0x12/0x78 RSP <ffff8806044f1d78> CR2: 0000000000000000 [akpm@linux-foundation.org: add pglist_data.kswapd locking comments] Signed-off-by: NXishi Qiu <qiuxishi@huawei.com> Signed-off-by: NJiang Liu <jiang.liu@huawei.com> Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: NMel Gorman <mgorman@suse.de> Acked-by: NDavid Rientjes <rientjes@google.com> Reviewed-by: NMinchan Kim <minchan@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile由 Linus Torvalds 提交于
Pull arch/tile fix from Chris Metcalf: "This is a single change to fix backtracing in big-endian mode." * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: big-endian: properly bswap instruction bundles when backtracing
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi由 Linus Torvalds 提交于
Pull SCSI fixes from James Bottomley: "This is a set of three fixes for data corruption (libsas task file), oops causing (NULL in scsi_cmd_to_driver) and driver failure (bnx2i). The oops caused by the NULL in scsi_cmd_to_driver() manifests in scsi_eh_send_cmd() and has been seen by several people now. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] bnx2i: Removed the reference to the netdev->base_addr [SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf [SCSI] Fix NULL dereferences in scsi_cmd_to_driver
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由 Javier Martin 提交于
Do not use MX2_CAMERA_SWAP16 and MX2_CAMERA_PACK_DIR_MSB flags. The driver must negotiate with the attached sensor whether the mbus format is UYUV or YUYV and set CSICR1 configuration accordingly. This is needed for the video function on mach-imx27_visstrim_m10.c to perform properly, since an earlier version of this patch has been proven wrong and has been reverted and a commit, depending on it: "[media] i.MX27: visstrim_m10: Remove use of MX2_CAMERA_SWAP16" is in the mainline. Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com> Reviewed-by: NMauro Carvalho Chehab <mchehab@redhat.com> Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> [ g.liakhovetski@gmx.de: move a macro definition to a more logical place ] Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> [ Applying directly because Mauro is on vacation - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc由 Linus Torvalds 提交于
Pull ARM SoC fixes from Arnd Bergmann: - multiple omap2+ bug fixes - a regression on ux500 dt support - a build failure on shmobile * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n ARM: ux500: Over-ride the DT device naming scheme for pinctrl ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set of: address: Don't fail a lookup just because a node has no reg property ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull power management fix from Rafael Wysocki: "This removes ACPICA code that had already been removed once from the kernel already by commit 2780cc4660e1 ("[ACPI] Fix suspend/resume lockup issue by leaving Bus Master Arbitration enabled"), because it was known to cause systems to lock up during resume from suspend, but was re-introduced by mistake during the v3.4 merge window." * tag 'pm-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PM: Leave Bus Master Arbitration enabled for suspend/resume
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core由 Linus Torvalds 提交于
Pull printk fixes from Greg Kroah-Hartman: "Here are some more printk fixes for 3.5-rc6. They resolve all known outstanding issues with the printk changes that have been happening. They have been tested by the people reporting the problems. This hopefully should be it for the printk stuff for 3.5-final. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'driver-core-3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: kmsg: merge continuation records while printing kmsg: /proc/kmsg - support reading of partial log records kmsg: make sure all messages reach a newly registered boot console kmsg: properly handle concurrent non-blocking read() from /proc/kmsg kmsg: add the facility number to the syslog prefix kmsg: escape the backslash character while exporting data printk: replacing the raw_spin_lock/unlock with raw_spin_lock/unlock_irq
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB fixes from Greg Kroah-Hartman: "Here are a few fixes and new device ids for the 3.5-rc6 tree. The PCI changes resolve a long-standing issue with resuming some EHCI controllers. It has been acked by the PCI maintainer, and he asked for it to go through my USB tree instead of his. The xhci patches also resolve a number of reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'usb-3.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: PCI: EHCI: fix crash during suspend on ASUS computers USB: cdc-wdm: fix lockup on error in wdm_read USB: metro-usb: fix tty_flip_buffer_push use USB: option: Add MEDIATEK product ids USB: option: add ZTE MF60 xhci: Fix hang on back-to-back Set TR Deq Ptr commands. usb: Add support for root hub port status CAS
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