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2015-05-10namei: get rid of lookup_hash()Al Viro1-15/+5
it's a convenient helper, but we'll want to shift nameidata down the call chain, so it won't be available there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10do_last: regularize the logics around following symlinksAl Viro1-8/+7
With LOOKUP_FOLLOW we unlazy and return 1; without it we either fail with ELOOP or, for O_PATH opens, succeed. No need to mix those cases... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10do_last: kill symlink_okAl Viro1-4/+2
When O_PATH is present, O_CREAT isn't, so symlink_ok is always equal to (open_flags & O_PATH) && !(nd->flags & LOOKUP_FOLLOW). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10namei: take O_NOFOLLOW treatment into do_last()Al Viro1-6/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10uninline walk_component()Al Viro1-2/+1
seriously improves the stack *and* I-cache footprint... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10SECURITY: remove nameidata arg from inode_follow_link.NeilBrown5-12/+8
No ->inode_follow_link() methods use the nameidata arg, and it is about to become private to namei.c. So remove from all inode_follow_link() functions. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10logfs: fix a pagecache leak for symlinksAl Viro1-0/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ceph: switch to simple_follow_link()Al Viro1-9/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10exofs: switch to {simple,page}_symlink_inode_operationsAl Viro5-66/+9
ACK-by: Boaz Harrosh <ooo@electrozaur.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10freevxfs: switch to simple_follow_link()Al Viro3-39/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10jfs: switch to simple_follow_link()Al Viro3-13/+5
Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10sysv: switch to simple_follow_link()Al Viro4-24/+4
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ubifs: switch to simple_follow_link()Al Viro3-10/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ufs: switch to simple_follow_link()Al Viro3-15/+6
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10debugfs: switch to simple_follow_link()Al Viro3-16/+3
Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10shmem: switch to simple_follow_link()Al Viro1-7/+2
Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10jffs2: switch to simple_follow_link()Al Viro3-44/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ext4: switch to simple_follow_link()Al Viro3-9/+5
for fast symlinks only, of course... Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ext3: switch to simple_follow_link()Al Viro3-10/+4
Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10befs: switch to simple_follow_link()Al Viro1-19/+5
Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ext2: use simple_follow_link()Al Viro3-10/+4
Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10libfs: simple_follow_link()Al Viro3-0/+17
let "fast" symlinks store the pointer to the body into ->i_link and use simple_follow_link for ->follow_link() Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ext4: split inode_operations for encrypted symlinks off the restAl Viro4-26/+20
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10ovl: rearrange ovl_follow_link to it doesn't need to call ->put_linkNeilBrown1-13/+12
ovl_follow_link current calls ->put_link on an error path. However ->put_link is about to change in a way that it will be impossible to call it from ovl_follow_link. So rearrange the code to avoid the need for that error path. Specifically: move the kmalloc() call before the ->follow_link() call to the subordinate filesystem. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-109p: don't bother with __getname() in ->follow_link()Al Viro3-100/+26
We copy there a kmalloc'ed string and proceed to kfree that string immediately after that. Easier to just feed that string to nd_set_link() and _not_ kfree it until ->put_link() (which becomes kfree_put_link() in that case). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-109p: don't bother with 4K allocation for 24-byte local array...Al Viro1-21/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-10Linux 4.1-rc3Linus Torvalds1-1/+1
2015-05-11drm: Zero out invalid vblank timestamp in drm_update_vblank_count.Mario Kleiner1-5/+4
Since commit 844b03f27739135fe1fed2fef06da0ffc4c7a081 we make sure that after vblank irq off, we return the last valid (vblank count, vblank timestamp) pair to clients, e.g., during modesets, which is good. An overlooked side effect of that commit for kms drivers without support for precise vblank timestamping is that at vblank irq enable, when we update the vblank counter from the hw counter, we can't update the corresponding vblank timestamp, so now we have a totally mismatched timestamp for the new count to confuse clients. Restore old client visible behaviour from before Linux 3.17, but zero out the timestamp at vblank counter update (instead of disable as in original implementation) if we can't generate a meaningful timestamp immediately for the new vblank counter. This will fix this regression, so callers know they need to retry again later if they need a valid timestamp, but at the same time preserves the improvements made in the commit mentioned above. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: <stable@vger.kernel.org> #v3.17+ Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-09m32r: make flush_cpumask non-volatile.Rusty Russell1-3/+3
We cast away the volatile, but really, why make it volatile at all? We already do a mb() inside the cpumask_empty() loop. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-09mnt: Fix fs_fully_visible to verify the root directory is visibleEric W. Biederman1-0/+6
This fixes a dumb bug in fs_fully_visible that allows proc or sys to be mounted if there is a bind mount of part of /proc/ or /sys/ visible. Cc: stable@vger.kernel.org Reported-by: Eric Windisch <ewindisch@docker.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2015-05-09path_openat(): fix double fput()Al Viro1-1/+2
path_openat() jumps to the wrong place after do_tmpfile() - it has already done path_cleanup() (as part of path_lookupat() called by do_tmpfile()), so doing that again can lead to double fput(). Cc: stable@vger.kernel.org # v3.11+ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-09namei: d_is_negative() should be checked before ->d_seq validationAl Viro1-6/+13
Fetching ->d_inode, verifying ->d_seq and finding d_is_negative() to be true does *not* mean that inode we'd fetched had been NULL - that holds only while ->d_seq is still unchanged. Shift d_is_negative() checks into lookup_fast() prior to ->d_seq verification. Reported-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-05-09ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for exynos5250-snowJavier Martinez Canillas1-0/+1
The Marvell mwifiex driver prevents the system to enter into a suspend state if the card power is not preserved during a suspend/resume cycle. So Suspend-to-RAM and Suspend-to-idle are failing on Exynos5250 Snow. Add the keep-power-in-suspend Power Management property to the SDIO/MMC node so the mwifiex suspend handler doesn't fail and the system is able to enter into a suspend state. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-09ARM: dts: Fix typo in trip point temperature for exynos5420/5440Abhilash Kesavan2-2/+2
Remove the extra zero in the "cpu-crit-0" trip point for exynos5420 and exynos5440. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-09ARM: dts: add 'rtc_src' clock to rtc node for exynos4412-odroid boardsMarkus Reichl1-0/+3
The Exynos4412 SoC has a s3c6410 RTC where the source clock is now a mandatory property. This patch fixes probe failure of s3c-rtc on Odroid-X2/U2/U3 boards. Signed-off-by: Markus Reichl <m.reichl@fivetechno.de> Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-09ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420Javier Martinez Canillas1-0/+1
Commit ea08de16eb1b ("ARM: dts: Add DISP1 power domain for exynos5420") added a device node for the Exynos5420 DISP1 power domain but dit not make the DP controller a consumer of that power domain. This causes an "Unhandled fault: imprecise external abort" error if the exynos-dp driver tries to access the DP controller registers and the PD was turned off. This lead to a kernel panic and a complete system hang. Make the DP controller device node a consumer of the DISP1 power domain to ensure that the PD is turned on when the exynos-dp driver is probed. Fixes: ea08de16eb1b ("ARM: dts: Add DISP1 power domain for exynos5420") Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-08MAINTAINERS: add Conexant Digicolor machines entryBaruch Siach1-0/+6
This adds Baruch as the maintainer for the Digicolor platform. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-08MAINTAINERS: socfpga: update the git repo for SoCFPGADinh Nguyen1-2/+3
The git tree at rocketboards.org is going away. Update the entry to reflect the address of the new location. Also add an entry for all the socfpga_* dts files. Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-08drm/tegra: Don't use vblank_disable_immediate on incapable driver.Mario Kleiner1-1/+0
Tegra would not only need a hardware vblank counter that increments at leading edge of vblank, but also support for instantaneous high precision vblank timestamp queries, ie. a proper implementation of dev->driver->get_vblank_timestamp(). Without these, there can be off-by-one errors during vblank disable/enable if the scanout is inside vblank at en/disable time, and additionally clients will never see any useable vblank timestamps when querying via drmWaitVblank ioctl. This would negatively affect swap scheduling under X11 and Wayland. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-08mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLEZhangfei Gao1-1/+2
When non-removable is used for emmc, MMC_CAP_NONREMOVABLE should also be checked, otherwise detection fail since present=0 Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-08mmc: dw_mmc: init desc in dw_mci_idmac_initZhangfei Gao1-1/+3
Set 0 to des1 in 32bit case. Otherwise the random value of des1 will be used in dw_mci_translate_sglist: IDMAC_SET_BUFFER1_SIZE(desc, length) Signed-off-by: Fei Wang <w.f@huawei.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-07ARM: multi_v7_defconfig: Select more FSL SoCsFabio Estevam1-0/+3
Select IMX50, IMX6SX and LS1021A SoC support. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07MAINTAINERS: replace an AT91 maintainerNicolas Ferre2-2/+8
As some help is needed from an active maintainer, replace Andrew Victor by Alexandre Belloni in the ARM/Atmel MAINTAINERS' entry (aka AT91). Add an entry to the CREDITS file. Thanks Andrew for the great role you played during the early days of this product family. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07drivers: CCI: fix used_mask init in validate_group()Mark Salter1-1/+1
Currently in validate_group(), there is a static initializer for fake_pmu.used_mask which is based on CPU_BITS_NONE but the used_mask array size is based on CCI_PMU_MAX_HW_EVENTS. CCI_PMU_MAX_HW_EVENTS is not based on NR_CPUS, so CPU_BITS_NONE is not correct and will cause a build failure if NR_CPUS is set high enough to make CPU_BITS_NONE larger than used_mask. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-05-07drm/radeon: stop trying to suspend UVD sessionsChristian König2-21/+19
Saving the current UVD state on suspend and restoring it on resume just doesn't work reliable. Just close cleanup all sessions on suspend. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07drm/radeon: more strictly validate the UVD codecChristian König1-2/+31
MPEG 2/4 are only supported since UVD3. Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07drm/radeon: make UVD handle checking more strictChristian König1-29/+43
Invalid messages can crash the hw otherwise. Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07drm/radeon: make VCE handle check more strictChristian König1-17/+48
Invalid handles can crash the hw. Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07drm/radeon: fix userptr lockupChristian König1-0/+3
We shouldn't try to reserve and wait for a BO that isn't bound. Otherwise we can run into a deadlock if we have a fault during binding the BO. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-07drm/radeon: fix userptr BO unpin bug v3monk.liu1-5/+3
Fixing a memory leak with userptrs. v2: clean up the loop, use an iterator instead v3: remove unused variable Signed-off-by: monk.liu <monk.liu@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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