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2010-12-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: watchdog: it8712f_wdt: add note to Kconfig watchdog: gef_wdt: include fs.h watchdog: bcm63xx_wdt: improve platform part. watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg PCH
2010-12-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB: Fix information leak in marshalling code IB/pack: Remove some unused code added by the IBoE patches IB/mlx4: Fix IBoE link state IB/mlx4: Fix IBoE reported link rate mlx4_core: Workaround firmware bug in query dev cap IB/mlx4: Fix memory ordering of VLAN insertion control bits MAINTAINERS: Update NetEffect entry
2010-12-02Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: only run xfs_error_test if error injection is active xfs: avoid moving stale inodes in the AIL xfs: delayed alloc blocks beyond EOF are valid after writeback xfs: push stale, pinned buffers on trylock failures xfs: fix failed write truncation handling.
2010-12-02Merge branch 'fix/asoc' into for-linusTakashi Iwai
2010-12-02Merge branch 'for-2.6.37' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6 into fix/asoc
2010-12-02Merge branch 'fix/hda' into for-linusTakashi Iwai
2010-12-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator: fix kernel-doc for set_consumer_device_supply regulator: enable supply regulator only when use count is zero regulator: twl-regulator - fix twlreg_set_mode regulator: lock supply in regulator enable regulator: Return proper error for regulator_register() regulator: Ensure enough delay time for enabling regulator regulator: Remove a redundant device_remove_file call in create_regulator regulator: Staticise mc13783_powermisc_rmw() regulator: regulator disable supply fix
2010-12-02Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: [media] v4l: Remove module_name argument to the v4l2_i2c_new_subdev* functions [media] v4l: Remove hardcoded module names passed to v4l2_i2c_new_subdev* (2)
2010-12-02Merge branch 'rbd-sysfs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'rbd-sysfs' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: replace the rbd sysfs interface
2010-12-02Merge 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: fix parsing of hostname in dfs referrals cifs: display fsc in /proc/mounts cifs: enable fscache iff fsc mount option is used explicitly cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set cifs: Handle extended attribute name cifs_acl to generate cifs acl blob (try #4) cifs: Misc. cleanup in cifsacl handling [try #4] cifs: trivial comment fix for cifs_invalidate_mapping [CIFS] fs/cifs/Kconfig: CIFS depends on CRYPTO_HMAC cifs: don't take extra tlink reference in initiate_cifs_search cifs: Percolate error up to the caller during get/set acls [try #4] cifs: fix another memleak, in cifs_root_iget cifs: fix potential use-after-free in cifs_oplock_break_put
2010-12-02xen: unplug the emulated devices at resume timeStefano Stabellini
Early after being resumed we need to unplug again the emulated devices. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02xen: fix save/restore for PV on HVM guests with pirq remappingStefano Stabellini
Re-map and re-bind all the pirqs at resume time. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02xen: resume the pv console for hvm guests tooStefano Stabellini
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02xen: fix MSI setup and teardown for PV on HVM guestsStefano Stabellini
When remapping MSIs into pirqs for PV on HVM guests, qemu is responsible for doing the actual mapping and unmapping. We only give qemu the desired pirq number when we ask to do the mapping the first time, after that we should be reading back the pirq number from qemu every time we want to re-enable the MSI. This fixes a bug in xen_hvm_setup_msi_irqs that manifests itself when trying to enable the same MSI for the second time: the old MSI to pirq mapping is still valid at this point but xen_hvm_setup_msi_irqs would try to assign a new pirq anyway. A simple way to reproduce this bug is to assign an MSI capable network card to a PV on HVM guest, if the user brings down the corresponding ethernet interface and up again, Linux would fail to enable MSIs on the device. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02xen: use PHYSDEVOP_get_free_pirq to implement find_unbound_pirqStefano Stabellini
Use the new hypercall PHYSDEVOP_get_free_pirq to ask Xen to allocate a pirq. Remove the unsupported PHYSDEVOP_get_nr_pirqs hypercall to get the amount of pirq available. This fixes find_unbound_pirq that otherwise would return a number starting from nr_irqs that might very well be out of range in Xen. The symptom of this bug is that when you passthrough an MSI capable pci device to a PV on HVM guest, Linux would fail to enable MSIs on the device. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02watchdog: it8712f_wdt: add note to KconfigWim Van Sebroeck
On some motherboards the it8712f watchdog does not work unless the game port was enabled. see Bug 13140. We therefor add a note to Kconfig. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02watchdog: gef_wdt: include fs.hWolfram Sang & Martyn Welch
Add missing include "linux/fs.h". This fixes compile failure. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02watchdog: bcm63xx_wdt: improve platform part.Wim Van Sebroeck
* fix devinit and devexit sections * fix platform removal code so that the iounmap happens after the removal of the timer. * changes the reboot_notifier by a platform shutdown method. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02watchdog: iTCO_wdt: TCO Watchdog patch for Intel Patsburg PCHSeth Heasley
This patch adds an additional LPC Controller DeviceID for the Intel Patsburg PCH for TCO Watchdog. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-12-02ASoC: omap: N810: Don't select CONFIG_OMAP_MUX but make it as dependencyJarkko Nikula
Not all omap boards use kernel based pin multiplexing so CONFIG_SND_OMAP_SOC_N810 should not select it by default as it can make harm to other boards in multi-board kernels. Therefore put CONFIG_OMAP_MUX as a dependency to N810 ASoC machine driver. Thanks to Tony Lindgren <tony@atomide.com> for noticing. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-12-02HID: length resolution should be reported units/mmDmitry Torokhov
Input ABI requires reporting resolution on main axes in units per millimeter, not units per inch, so we need to convert accordingly. Tested-by: Nikolai Kondrashov <spbnick@gmail.com> Acked-by: Nikolai Kondrashov <spbnick@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-12-02ALSA: hda: Use "alienware" model quirk for another SSIDDaniel T Chen
BugLink: https://launchpad.net/bugs/683695 The original reporter states that headphone jacks do not appear to work. Upon inspecting his codec dump, and upon further testing, it is confirmed that the "alienware" model quirk is correct. Reported-and-tested-by: Cody Thierauf Cc: <stable@kernel.org> [2.6.32+] Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-12-01Merge branches 'misc', 'mlx4' and 'nes' into for-nextRoland Dreier
2010-12-01IB: Fix information leak in marshalling codeVasiliy Kulikov
ib_ucm_init_qp_attr() and ucma_init_qp_attr() pass struct ib_uverbs_qp_attr with reserved, qp_state, {ah_attr,alt_ah_attr}{reserved,->grh.reserved} fields uninitialized to copy_to_user(). This leads to leaking of contents of kernel stack memory to userspace. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01IB/pack: Remove some unused code added by the IBoE patchesOr Gerlitz
Remove unused functions added by commit ff7f5aab354d ("IB/pack: IBoE UD packet packing support"). Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
2010-12-01IB/mlx4: Fix IBoE link stateEli Cohen
Use netif_running() and netif_carrier_ok() to report link state, exactly as is done to report Ethernet link state in sysfs. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01IB/mlx4: Fix IBoE reported link rateEli Cohen
The link rate is the product of the link speed in the link width. For Etherent ports the rate is 10G, so we use 1 for the width and 4 for speed to get the correct rate. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01mlx4_core: Workaround firmware bug in query dev capEli Cohen
ConnectX firmware is supposed to report the number blue flame registers per page as log2 of the value. However, due to a firmware bug, it reports actual number. This patch works around this by checking if the number of registers calculated fits within a page. If it does not, we use 8 registers per page. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01rbd: replace the rbd sysfs interfaceYehuda Sadeh
The new interface creates directories per mapped image and under each it creates a subdir per available snapshot. This allows keeping a cleaner interface within the sysfs guidelines. The ABI documentation was updated too. Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2010-12-01IB/mlx4: Fix memory ordering of VLAN insertion control bitsEli Cohen
We must fully update the control segment before marking it as valid, so that hardware doesn't start executing it before we're ready. Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Move VLAN control bit setting to before wmb(). - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01MAINTAINERS: Update NetEffect entryChien Tung
Correct web link as www.neteffect.com is no longer valid. Remove Chien Tung as maintainer. I am moving on to other responsibilities at Intel. Thanks for all the fish. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-12-01xfs: only run xfs_error_test if error injection is activeDave Chinner
Recent tests writing lots of small files showed the flusher thread being CPU bound and taking a long time to do allocations on a debug kernel. perf showed this as the prime reason: samples pcnt function DSO _______ _____ ___________________________ _________________ 224648.00 36.8% xfs_error_test [kernel.kallsyms] 86045.00 14.1% xfs_btree_check_sblock [kernel.kallsyms] 39778.00 6.5% prandom32 [kernel.kallsyms] 37436.00 6.1% xfs_btree_increment [kernel.kallsyms] 29278.00 4.8% xfs_btree_get_rec [kernel.kallsyms] 27717.00 4.5% random32 [kernel.kallsyms] Walking btree blocks during allocation checking them requires each block (a cache hit, so no I/O) call xfs_error_test(), which then does a random32() call as the first operation. IOWs, ~50% of the CPU is being consumed just testing whether we need to inject an error, even though error injection is not active. Kill this overhead when error injection is not active by adding a global counter of active error traps and only calling into xfs_error_test when fault injection is active. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-01xfs: avoid moving stale inodes in the AILDave Chinner
When an inode has been marked stale because the cluster is being freed, we don't want to (re-)insert this inode into the AIL. There is a race condition where the cluster buffer may be unpinned before the inode is inserted into the AIL during transaction committed processing. If the buffer is unpinned before the inode item has been committed and inserted, then it is possible for the buffer to be released and hence processthe stale inode callbacks before the inode is inserted into the AIL. In this case, we then insert a clean, stale inode into the AIL which will never get removed by an IO completion. It will, however, get reclaimed and that triggers an assert in xfs_inode_free() complaining about freeing an inode still in the AIL. This race can be avoided by not moving stale inodes forward in the AIL during transaction commit completion processing. This closes the race condition by ensuring we never insert clean stale inodes into the AIL. It is safe to do this because a dirty stale inode, by definition, must already be in the AIL. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-01xfs: delayed alloc blocks beyond EOF are valid after writebackDave Chinner
There is an assumption in the parts of XFS that flushing a dirty file will make all the delayed allocation blocks disappear from an inode. That is, that after calling xfs_flush_pages() then ip->i_delayed_blks will be zero. This is an invalid assumption as we may have specualtive preallocation beyond EOF and they are recorded in ip->i_delayed_blks. A flush of the dirty pages of an inode will not change the state of these blocks beyond EOF, so a non-zero deeelalloc block count after a flush is valid. The bmap code has an invalid ASSERT() that needs to be removed, and the swapext code has a bug in that while it swaps the data forks around, it fails to swap the i_delayed_blks counter associated with the fork and hence can get the block accounting wrong. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-01xfs: push stale, pinned buffers on trylock failuresDave Chinner
As reported by Nick Piggin, XFS is suffering from long pauses under highly concurrent workloads when hosted on ramdisks. The problem is that an inode buffer is stuck in the pinned state in memory and as a result either the inode buffer or one of the inodes within the buffer is stopping the tail of the log from being moved forward. The system remains in this state until a periodic log force issued by xfssyncd causes the buffer to be unpinned. The main problem is that these are stale buffers, and are hence held locked until the transaction/checkpoint that marked them state has been committed to disk. When the filesystem gets into this state, only the xfssyncd can cause the async transactions to be committed to disk and hence unpin the inode buffer. This problem was encountered when scaling the busy extent list, but only the blocking lock interface was fixed to solve the problem. Extend the same fix to the buffer trylock operations - if we fail to lock a pinned, stale buffer, then force the log immediately so that when the next attempt to lock it comes around, it will have been unpinned. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-01xfs: fix failed write truncation handling.Dave Chinner
Since the move to the new truncate sequence we call xfs_setattr to truncate down excessively instanciated blocks. As shown by the testcase in kernel.org BZ #22452 that doesn't work too well. Due to the confusion of the internal inode size, and the VFS inode i_size it zeroes data that it shouldn't. But full blown truncate seems like overkill here. We only instanciate delayed allocations in the write path, and given that we never released the iolock we can't have converted them to real allocations yet either. The only nasty case is pre-existing preallocation which we need to skip. We already do this for page discard during writeback, so make the delayed allocation block punching a generic function and call it from the failed write path as well as xfs_aops_discard_page. The callers are responsible for ensuring that partial blocks are not truncated away, and that they hold the ilock. Based on a fix originally from Christoph Hellwig. This version used filesystem blocks as the range unit. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-12-01Merge branch 'kconfig_fixes' of ↵Michal Marek
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-next into kbuild/rc-fixes
2010-12-01initramfs: Really fix build break on symbol-prefixed archsHendrik Brueckner
Define the __initramfs_size variable using VMLINUX_SYMBOL() to take care of symbol-prefixed architectures, for example, blackfin. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>, Cc: Michal Marek <mmarek@suse.cz> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [mmarek: leave out Makefile change, since d63f6d1 already takes care of the SYMBOL_PREFIX define] Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-12-01ASoC: WM8731: Fix incorrect mask for bypass path disableDimitris Papastamos
According to the datasheet the bypass path enable/disable is bit 3 therefore we need 0x8 and not 0x4. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-12-01lxfb: Maintain video processor palette through suspend/resumeDaniel Drake
The Geode X driver uses both of the LX's palettes, one for gamma correction and one for colormaps. The kernel driver currently only backs up the one used for colormaps during suspend/resume. If you mess with gamma settings and do a suspend/resume, colors go funny. Fix this by backing up the video proc palette during suspend/resume, alongside the display controller one which is already handled. Signed-off-by: Daniel Drake <dsd@laptop.org> Acked-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-01video: da8xx: Register IRQ as last thing in driver probing.Caglar Akyuz
Following commit exposed a bug in driver: "fbdev: da8xx/omap-l1xx: implement double buffering" Bug is, if interrupt handler is called before initialization is finished, raster controller is enabled and following register modifications causes hardware to stay in a broken state. By looking at this one may say that proper locking is missing in this driver, and a more proper fix should be prepared. However, aformentioned commit causes a regression in the driver and some fix to current one should be applied first. Signed-off-by: Caglar Akyuz <caglar@bilkon-kontrol.com.tr> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-01Merge branch 'sh/cachetlb' into sh-fixes-for-linusPaul Mundt
2010-12-01sh: Assume new page cache pages have dirty dcache lines.Paul Mundt
This follows the ARM change c01778001a4f5ad9c62d882776235f3f31922fdd ("ARM: 6379/1: Assume new page cache pages have dirty D-cache") for the same rationale: There are places in Linux where writes to newly allocated page cache pages happen without a subsequent call to flush_dcache_page() (several PIO drivers including USB HCD). This patch changes the meaning of PG_arch_1 to be PG_dcache_clean and always flush the D-cache for a newly mapped page in update_mmu_cache(). This addresses issues seen with executing binaries from MMC, in addition to some of the other HCDs that don't explicitly do cache management for their pipe-in buffers. Requested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-30Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: add workaround for dce3 ddc line vbios bug drm/radeon/kms: fix interlaced and doublescan handling drm/radeon/kms: fix typos in disabled vbios code Revert "drm/i915/dp: use VBT provided eDP params if available" drm/i915: Clear pfit registers when not used by any outputs drm: record monitor status in output_poll_execute drm: Set connector DPMS status to ON in drm_crtc_helper_set_config drm/i915: fix regression due to ba3d8d749b01548b9 Revert "drm/radeon/kms: fix typo in r600 cs checker" drm/i915/sdvo: Always add a 30ms delay to make SDVO TV detection reliable MAINTAINERS: INTEL DRM DRIVERS list (intel-gfx) is subscribers-only drm/i915/sdvo: Always fallback to querying the shared DDC line drm/i915: Handle pagefaults in execbuffer user relocations drm/i915/sdvo: Only enable HDMI encodings only if the commandset is supported drm/radeon/kms: fix resume regression for some r5xx laptops drm/radeon/kms: fix regression in rs4xx i2c setup drm/i915: Only save/restore cursor regs if !KMS drm/i915: Prevent integer overflow when validating the execbuffer
2010-12-01drm/radeon/kms: add workaround for dce3 ddc line vbios bugAlex Deucher
fixes: https://bugzilla.kernel.org/show_bug.cgi?id=23752 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc:stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-12-01drm/radeon/kms: fix interlaced and doublescan handlingAlex Deucher
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-12-01drm/radeon/kms: fix typos in disabled vbios codeAlex Deucher
6xx/7xx was hitting the wrong BUS_CNTL reg and bits. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-12-01Merge remote branch 'intel/drm-intel-fixes' of /ssd/git/drm-next into drm-fixesDave Airlie
* 'intel/drm-intel-fixes' of /ssd/git/drm-next: Revert "drm/i915/dp: use VBT provided eDP params if available" drm/i915: Clear pfit registers when not used by any outputs drm/i915: fix regression due to ba3d8d749b01548b9
2010-11-30Merge branch 'for_linus' of git://github.com/at91linux/linux-2.6-at91Linus Torvalds
* 'for_linus' of git://github.com/at91linux/linux-2.6-at91: at91/board-yl-9200: fix typo in video support atmel_spi: fix warning In function 'atmel_spi_dma_map_xfer' at91/picotux200: remove commenting usb device and dataflash support at91: rename rm9200ek and rm9200dk board file name at91rm9200ek: fix warning: 'ek_mmc_data' defined but not used at91rm9200dk: fix warning: 'dk_mmc_data' defined but not used at91: Convert remaining boards to new-style UART initialization at91: merge all at91rm9200 defconfig in one single file
2010-11-30exec: copy-and-paste the fixes into compat_do_execve() pathsOleg Nesterov
Note: this patch targets 2.6.37 and tries to be as simple as possible. That is why it adds more copy-and-paste horror into fs/compat.c and uglifies fs/exec.c, this will be cleanuped later. compat_copy_strings() plays with bprm->vma/mm directly and thus has two problems: it lacks the RLIMIT_STACK check and argv/envp memory is not visible to oom killer. Export acct_arg_size() and get_arg_page(), change compat_copy_strings() to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0) as do_execve() does. Add the fatal_signal_pending/cond_resched checks into compat_count() and compat_copy_strings(), this matches the code in fs/exec.c and certainly makes sense. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>