- 13 Jul, 2012 13 commits
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Will Drewry authored
If a seccomp filter program is installed, older static binaries and distributions with older libc implementations (glibc 2.13 and earlier) that rely on vsyscall use will be terminated regardless of the filter program policy when executing time, gettimeofday, or getcpu. This is only the case when vsyscall emulation is in use (vsyscall=emulate is the default). This patch emulates system call entry inside a vsyscall=emulate by populating regs->ax and regs->orig_ax with the system call number prior to calling into seccomp such that all seccomp-dependencies function normally. Additionally, system call return behavior is emulated in line with other vsyscall entrypoints for the trace/trap cases. [ v2: fixed ip and sp on SECCOMP_RET_TRAP/TRACE (thanks to luto@mit.edu) ] Reported-and-tested-by:
Owen Kibel <qmewlo@gmail.com> Signed-off-by:
Will Drewry <wad@chromium.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/stagingLinus Torvalds authored
Please pull one hwmon subsystem fix from Jean Delvare. * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (it87) Preserve configuration register bits on init
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client bugfixes from Trond Myklebust: - Fix an NFSv4 mount regression - Fix O_DIRECT list manipulation snafus * tag 'nfs-for-3.5-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4: Fix an NFSv4 mount regression NFS: Fix list manipulation snafus in fs/nfs/direct.c
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Dave Jones authored
This can be trivially triggered from userspace by passing in something unexpected. kernel BUG at fs/locks.c:1468! invalid opcode: 0000 [#1] SMP RIP: 0010:generic_setlease+0xc2/0x100 Call Trace: __vfs_setlease+0x35/0x40 fcntl_setlease+0x76/0x150 sys_fcntl+0x1c6/0x810 system_call_fastpath+0x1a/0x1f Signed-off-by:Dave Jones <davej@redhat.com> Cc: stable@kernel.org # 3.2+ Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input layer fixes from Dmitry Torokhov: "The changes are limited to adding new VID/PID combinations to drivers to enable support for new versions of hardware, most notably hardware found in new MacBook Pro Retina boxes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xpad - add Andamiro Pump It Up pad Input: xpad - add signature for Razer Onza Tournament Edition Input: xpad - handle all variations of Mad Catz Beat Pad Input: bcm5974 - Add support for 2012 MacBook Pro Retina HID: add support for 2012 MacBook Pro Retina
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: - Some regression fixes at the audio part for devices with cx23885/cx25840 - A DMA corruption fix at cx231xx - two fixes at the winbond IR driver - Several fixes for the EXYNOS media driver (s5p) - two fixes at the OMAP3 preview driver - one fix at the dvb core failure path - an include missing (slab.h) at smiapp-core causing compilation breakage - em28xx was not loading the IR driver driver anymore. * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (31 commits) [media] Revert "[media] V4L: JPEG class documentation corrections" [media] s5p-fimc: Add missing FIMC-LITE file operations locking [media] omap3isp: preview: Fix contrast and brightness handling [media] omap3isp: preview: Fix output size computation depending on input format [media] winbond-cir: Initialise timeout, driver_type and allowed_protos [media] winbond-cir: Fix txandrx module info [media] cx23885: Silence unknown command warnings [media] cx23885: add support for HVR-1255 analog (cx23888 variant) [media] cx23885: make analog support work for HVR_1250 (cx23885 variant) [media] cx25840: fix vsrc/hsrc usage on cx23888 designs [media] cx25840: fix regression in HVR-1800 analog audio [media] cx25840: fix regression in analog support hue/saturation controls [media] cx25840: fix regression in HVR-1800 analog support [media] s5p-mfc: Fixed setup of custom controls in decoder and encoder [media] cx231xx: don't DMA to random addresses [media] em28xx: fix em28xx-rc load [media] dvb-core: Release semaphore on error path dvb_register_device() [media] s5p-fimc: Stop media entity pipeline if fimc_pipeline_validate fails [media] s5p-fimc: Fix compiler warning in fimc-lite.c [media] s5p-fimc: media_entity_pipeline_start() may fail ...
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmcLinus Torvalds authored
Pull MMC fixes from Chris Ball: - Revert a patch that made failing to select power class fatal; it turns out that it fails non-fatally on Tegra boards. Regression against 3.5-rc1. - Add the IRQF_ONESHOT flag to the cd-gpio driver, which turned into a regression in 3.5-rc1 when IRQF_ONESHOT became required for threaded IRQs with no handler. * tag 'mmc-fixes-for-3.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: cd-gpio: pass IRQF_ONESHOT to request_threaded_irq() mmc: core: Revert "skip card initialization if power class selection fails"
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git://git.infradead.org/linux-mtdLinus Torvalds authored
Pull late MTD fixes from David Woodhouse: - fix 'sparse warning fix' regression which totally breaks MXC NAND - fix GPMI NAND regression when used with UBI - update/correct sysfs documentation for new 'bitflip_threshold' field - fix nandsim build failure * tag 'for-linus-20120712' of git://git.infradead.org/linux-mtd: mtd: nandsim: don't open code a do_div helper mtd: ABI documentation: clarification of bitflip_threshold mtd: gpmi-nand: fix read page when reading to vmalloced area mtd: mxc_nand: use 32bit copy functions
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6Linus Torvalds authored
Pull MFD Fixes from Samuel Ortiz: - Three Palmas fixes, One of them being a build error fix. - Two mc13xx fixes. One for fixing an SPI regmap configuration and another one for working around an i.Mx hardware bug. - One omap-usb regression fix. - One twl6040 build breakage fix. - One file deletion (ab5500-core.h) that was overlooked during the last merge window. * tag 'mfd-for-linus-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: Add missing hunk to change palmas irq to clear on read mfd: Fix palmas regulator pdata missing mfd: USB: Fix the omap-usb EHCI ULPI PHY reset fix issues. mfd: Update twl6040 Kconfig to avoid build breakage mfd: Delete ab5500-core.h mfd: mc13xxx workaround SPI hardware bug on i.Mx mfd: Fix mc13xxx SPI regmap mfd: Add terminating entry for i2c_device_id palmas table
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git://github.com/pmundt/linux-shLinus Torvalds authored
Pull SuperH fixes from Paul Mundt. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: SH: Convert out[bwl] macros to inline functions sh: Fix up se7721 GPIOLIB=y build warnings.
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull a couple of KVM fixes from Avi Kivity: "One is an adjustment for an irq layer change that affected device assignment, the other a one-liner ppc fix." * git://git.kernel.org/pub/scm/virt/kvm/kvm: powerpc/kvm: Fix "PR" KVM implementation of H_CEDE KVM: Fix device assignment threaded irq handler
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Jeff Moyer authored
Commit 080399aa ("block: don't mark buffers beyond end of disk as mapped") exposed a bug in __getblk_slow that causes mount to hang as it loops infinitely waiting for a buffer that lies beyond the end of the disk to become uptodate. The problem was initially reported by Torsten Hilbrich here: https://lkml.org/lkml/2012/6/18/54 and also reported independently here: http://www.sysresccd.org/forums/viewtopic.php?f=13&t=4511 and then Richard W.M. Jones and Marcos Mello noted a few separate bugzillas also associated with the same issue. This patch has been confirmed to fix: https://bugzilla.redhat.com/show_bug.cgi?id=835019 The main problem is here, in __getblk_slow: for (;;) { struct buffer_head * bh; int ret; bh = __find_get_block(bdev, block, size); if (bh) return bh; ret = grow_buffers(bdev, block, size); if (ret < 0) return NULL; if (ret == 0) free_more_memory(); } __find_get_block does not find the block, since it will not be marked as mapped, and so grow_buffers is called to fill in the buffers for the associated page. I believe the for (;;) loop is there primarily to retry in the case of memory pressure keeping grow_buffers from succeeding. However, we also continue to loop for other cases, like the block lying beond the end of the disk. So, the fix I came up with is to only loop when grow_buffers fails due to memory allocation issues (return value of 0). The attached patch was tested by myself, Torsten, and Rich, and was found to resolve the problem in call cases. Signed-off-by:
Jeff Moyer <jmoyer@redhat.com> Reported-and-Tested-by:
Torsten Hilbrich <torsten.hilbrich@secunet.com> Tested-by:
Richard W.M. Jones <rjones@redhat.com> Reviewed-by:
Josh Boyer <jwboyer@redhat.com> Cc: Stable <stable@vger.kernel.org> # 3.0+ [ Jens is on vacation, taking this directly - Linus ] -- Stable Notes: this patch requires backport to 3.0, 3.2 and 3.3. Signed-off-by:
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Yuri Khan authored
I couldn't find the vendor ID in any of the online databases, but this mat has a Pump It Up logo on the top side of the controller compartment, and a disclaimer stating that Andamiro will not be liable on the bottom. Signed-off-by:
Yuri Khan <yurivkhan@gmail.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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- 12 Jul, 2012 2 commits
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Jean Delvare authored
We were accidentally losing one bit in the configuration register on device initialization. It was reported to freeze one specific system right away. Properly preserve all bits we don't explicitly want to change in order to prevent that. Reported-by:
Stevie Trujillo <stevie.trujillo@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
Jean Delvare <khali@linux-fr.org> Reviewed-by:
Guenter Roeck <linux@roeck-us.net>
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Corey Minyard authored
The macros just called BUG(), but that results in unused variable warnings all over the place, like in the IPMI driver. The build regression emails were annoying me, so here's the fix. I have not even compile tested this, but it's rather obvious. [ port type mangled to unsigned long ] Signed-off-by:
Corey Minyard <cminyard@mvista.com> Signed-off-by:
Paul Mundt <lethal@linux-sh.org>
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- 11 Jul, 2012 25 commits
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git://github.com/schandinat/linux-2.6Linus Torvalds authored
Pull fbdev fixes from Florian Tobias Schandinat: "Two fixes for OMAPDSS by Tomi Valkeinen: - one to avoid warnings when runtime PM is not enabled - one workaround to dependancy issues during suspend/resume" * tag 'fbdev-fixes-for-3.5-2' of git://github.com/schandinat/linux-2.6: OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n OMAPDSS: Use PM notifiers for system suspend
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Linus Torvalds authored
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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Yinghai Lu authored
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:Sasha Levin <levinsasha928@gmail.com> Acked-by:
Tejun Heo <tj@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Yinghai Lu <yinghai@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Yinghai Lu authored
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:
Johannes Weiner <hannes@cmpxchg.org> Cc: <stable@vger.kernel.org> [3.3.x, 3.4.x] Signed-off-by:
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Yinghai Lu authored
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:
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Alan Cox authored
Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=43871 Reported-by: <dcb314@hotmail.com> Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
Chris Zankel <chris@zankel.net> Signed-off-by:
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Hugh Dickins authored
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:
Hugh Dickins <hughd@google.com> Acked-by:
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Hugh Dickins authored
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:
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Hugh Dickins authored
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:
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Kevin Hilman authored
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:
Kevin Hilman <khilman@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Steven J. Magnani authored
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:
Steven J. Magnani <steve@digidescorp.com> Acked-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Kevin Hilman authored
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:
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Dan Carpenter authored
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:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Robin Holt <holt@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by:
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Bob Liu authored
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:
Bob 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:
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Benoît Thébaudeau authored
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:
Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by:
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Wen Congyang authored
We should goto error to release memory resource if hotadd_new_pgdat() failed. Signed-off-by:
Wen Congyang <wency@cn.fujitsu.com> Cc: Yasuaki ISIMATU <isimatu.yasuaki@jp.fujitsu.com> Acked-by:
David Rientjes <rientjes@google.com> Cc: Len Brown <lenb@kernel.org> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by:
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Geert Uytterhoeven authored
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:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by:
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Geert Uytterhoeven authored
__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:
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Geert Uytterhoeven authored
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:
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Geert Uytterhoeven authored
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:
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Geert Uytterhoeven authored
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:
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Lee Jones authored
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:
Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Lee Jones authored
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:
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David Rientjes authored
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:
Mel 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:
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Konstantin Khlebnikov authored
"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:
Konstantin Khlebnikov <khlebnikov@openvz.org> Reported-by:
Cyrill Gorcunov <gorcunov@openvz.org> Tested-by:
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