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2013-10-21ARM: imx: add a common function to initialize revision from anatopShawn Guo3-31/+23
The patch creates a common function imx_init_revision_from_anatop() by merging imx6q_init_revision() and imx_anatop_get_digprog(), so that any SoC that encodes revision info in anatop can use it to initialize revision. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx6q: use common soc revision helpersShawn Guo3-12/+7
It calls imx_set_soc_revision() to set up soc revision in imx6q_init_revision(), and replaces all the occurrences of imx6q_revision() with common helper imx_get_soc_revision(). Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx: add soc revision helper functionsShawn Guo2-0/+14
Similar to what we do for cpu type, the patch adds helper functions imx_set_soc_revision() and imx_get_soc_revision() to maintain imx_soc_revision in cpu.c. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx: add low-level debug for vybridShawn Guo2-0/+34
Add low-level debug support for vybrid, so that earlyprintk can be enabled for debugging early boot issue. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx: remove IRQF_DISABLEDMichael Opdenacker7-10/+7
This flag is a NOOP since 2.6.35 and can be removed. This is an update for 3.11 of a patch already sent for 3.10 Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx6sl: config iomux-gpr1 to select clock for fecFugang Duan1-0/+21
Config iomux-gpr1 to select clock source for fec system clock. Clear gpr1[14], gpr1[18-17] bit to select the fec clock source from internal anatop PLL. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx6sl: add imx6sl iomux-gpr field defineFugang Duan1-0/+5
Add imx6sl iomux-gpr register field define in "imx6q-iomuxc-gpr.h" header file, which is not fully define all iomux-gpr registers and fields, only add fec related macro define. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21ARM: imx6q: Add pll4_audio_div to clock treeNicolin Chen2-4/+6
There's a pll4_audio_div clock, an extra divider for pll4, missing in current clock tree, thus add it. Signed-off-by: Nicolin Chen <b42378@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-29ARM: vt8500: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Tony Prisk <linux@prisktech.co.nz>
2013-09-29ARM: vexpress: remove custom .init_time hookSebastian Hesselbarth1-13/+1
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. The call to versatile_sched_clock_init is moved to .init_early instead, were it is also for non-DT boards. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Jon Medhurst (Tixy) <tixy@linaro.org> Acked-by: Pawel Moll <pawel.moll@arm.com>
2013-09-29ARM: tegra: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com>
2013-09-29ARM: sunxi: remove custom .init_time hookSebastian Hesselbarth1-8/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2013-09-29ARM: sti: remove custom .init_time hookSebastian Hesselbarth1-6/+4
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. To get rid of it, move l2cc init to .init_machine hook instead. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
2013-09-29ARM: socfpga: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
2013-09-29ARM: rockchip: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Heiko Stuebner <heiko@sntech.de>
2013-09-29ARM: prima2: remove custom .init_time hookSebastian Hesselbarth1-11/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Barry Song <baohua.song@csr.com>
2013-09-29ARM: nspire: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2013-09-29ARM: nomadik: remove custom .init_time hookSebastian Hesselbarth1-9/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-29ARM: mxs: remove custom .init_time hookSebastian Hesselbarth4-30/+16
This patch converts clk-imx2[38] clocksource_of_init compatible init associated with fsl,imx2[38]-clkctrl. With arch/arm calling of_clk_init(NULL) from time_init(), we can now also remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Mike Turquette <mturquette@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-29ARM: kirkwood: remove custom .init_time hookSebastian Hesselbarth1-8/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net>
2013-09-29ARM: imx: remove custom .init_time hookSebastian Hesselbarth7-62/+13
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-29ARM: highbank: remove custom .init_time hookSebastian Hesselbarth2-19/+14
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Highbank clock provider need a reference to system registers, as a workaround current clk driver maps those independent of arch code now. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29ARM: exynos: remove custom .init_time hookSebastian Hesselbarth4-13/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. While at it, also remove some now redundant includes. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com>
2013-09-29ARM: dove: remove custom .init_time hookSebastian Hesselbarth1-11/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. While at it, also remove some obsolete includes. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net>
2013-09-29ARM: bcm2835: remove custom .init_time hookSebastian Hesselbarth2-10/+0
With arch/arm calling of_clk_init(NULL) from time_init(), we can now remove custom .init_time hooks. Also remove call to of_clk_init from clk-bcm2835 with core fixed_clock match, as this has already been registered now. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29ARM: bcm: provide common arch init for DT clocksMatt Porter1-1/+0
With arch/arm calling of_clk_init(NULL) and clocksource_of_init() this is no longer needed. The former is useful because we can make use of dummy fixed clocks for drivers until the bcm281xx common clock driver is ready. Signed-off-by: Matt Porter <matt.porter@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Acked-by: Christian Daudt <csd@broadcom.com>
2013-09-29ARM: call of_clk_init from default time_init handlerSebastian Hesselbarth1-12/+17
Most DT ARM machs require common clock providers initialized before timers. Currently, arch/arm machs use .init_time to call of_clk_init right before clocksource_of_init. This prevents to remove that callback and use the default one instead. This patch adds a call to of_clk_init() to the default .init_time callback for COMMON_CLK enabled machs to allow to remove custom callbacks where applicable. While at it, also reorder includes alphabetically. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2013-09-29ARM: vt8500: prepare for arch-wide .init_time callbackSebastian Hesselbarth3-39/+8
Current vt8500 board init calls of_clk_init() from vtwm_clk_init. To allow consolidation of DT driven .time_init, move of_clock_init() to a temporary .time_init callback that will be removed when arch-wide callback is available. With previous pmc_base parsing helper for vt8500 clock providers, we can also safely remove the call to vtwm_clk_init() and get rid of some includes. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29clk: vt8500: parse pmc_base from clock driverSebastian Hesselbarth1-0/+24
Currently, clock providers for vt8500 depend on machine_init providing pmc_base address before calling of_clk_init. With upcoming arch-wide .time_init calling of_clk_init, we should make clock providers independent of mach code. This adds a pmc_base parsing helper to current clock provider that gets called if there is no pmc_base set, yet. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29clk: sunxi: declare OF clock providerSebastian Hesselbarth3-30/+7
Common clock framework allows to register clock providers to get called on of_clk_init() by using CLK_OF_DECLARE. This converts sunxi clock providers to make use of it and get rid of the mach specific clk init call. As sunxi has a bunch of independent clk provider nodes, we hook current clock init to board compatible to make it called once. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29ARM: socfgpa: prepare for arch-wide .init_time callbackSebastian Hesselbarth1-1/+8
Current socfpga board init calls of_clk_init() from .machine_init. To allow consolidation of DT driven .time_init, move of_clock_init() to a temporary .time_init that will be removed when arch-wide callback is available. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
2013-09-29clk: prima2: declare OF clock providerSebastian Hesselbarth3-26/+8
Common clock framework allows to register clock providers to get called on of_clk_init() by using CLK_OF_DECLARE. This converts prima2 clock provider to make use of it and get rid of the mach specific clk init call. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Barry Song <baohua.song@csr.com> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29clk: nomadik: declare OF clock providerSebastian Hesselbarth3-35/+17
Common clock framework allows to register clock providers to get called on of_clk_init() by using CLK_OF_DECLARE. This converts nomadik clock provider to make use of it and get rid of the mach specific clk init call. As clocks require system reset controller base address to be initialized each clock driver checks src_base and calls new nomadik_src_init if required. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29clk: nomadik: move src init out of nomadik_clk_initSebastian Hesselbarth1-70/+74
nomadik_clk_init currently also maps system reset controller base address used by clocks and registers a reboot notifier. To allow further cleanup of nomadik clk setup, this moves system reset controller setup from nomadik_clk_init to its own function. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29ARM: nomadik: remove mtu initalization from .init_timeSebastian Hesselbarth1-26/+0
Nomadik clock initialization is properly done in clk-nomadik since patch "clk: nomadik: set all timers to use 2.4 MHz TIMCLK". Therefore, this patch removes now redundant mtu initialization from .init_time callback. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-24Linux 3.12-rc2v3.12-rc2Linus Torvalds1-1/+1
2013-09-22cfq: explicitly use 64bit divide operation for 64bit argumentsAnatol Pomozov1-1/+1
'samples' is 64bit operant, but do_div() second parameter is 32. do_div silently truncates high 32 bits and calculated result is invalid. In case if low 32bit of 'samples' are zeros then do_div() produces kernel crash. Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-09-22clk: nomadik: set all timers to use 2.4 MHz TIMCLKLinus Walleij1-0/+21
This fixes a regression for the Nomadik on the main system timers. The Nomadik seemed a bit slow and its heartbeat wasn't looking healthy. And it was not strange, because it has been connected to the 32768 Hz clock at boot, while being told by the clock driver that it was 2.4MHz. Actually connect the TIMCLK to 2.4MHz by default as this is what we want for nice scheduling, clocksource and clock event. Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21block: Add nr_bios to block_rq_remap tracepointJun'ichi Nomura2-2/+15
Adding the number of bios in a remapped request to 'block_rq_remap' tracepoint. Request remapper clones bios in a request to track the completion status of each bio. So the number of bios can be useful information for investigation. Related discussions: http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-09-21Btrfs: create the uuid tree on remount rwJosef Bacik1-0/+10
Users have been complaining of the uuid tree stuff warning that there is no uuid root when trying to do snapshot operations. This is because if you mount -o ro we will not create the uuid tree. But then if you mount -o rw,remount we will still not create it and then any subsequent snapshot/subvol operations you try to do will fail gloriously. Fix this by creating the uuid_root on remount rw if it was not already there. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21btrfs: change extent-same to copy entire argument structMark Fasheh1-31/+45
btrfs_ioctl_file_extent_same() uses __put_user_unaligned() to copy some data back to it's argument struct. Unfortunately, not all architectures provide __put_user_unaligned(), so compiles break on them if btrfs is selected. Instead, just copy the whole struct in / out at the start and end of operations, respectively. Signed-off-by: Mark Fasheh <mfasheh@suse.de> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: dir_inode_operations should use btrfs_update_time alsoGuangyu Sun1-0/+2
Commit 2bc5565286121d2a77ccd728eb3484dff2035b58 (Btrfs: don't update atime on RO subvolumes) ensures that the access time of an inode is not updated when the inode lives in a read-only subvolume. However, if a directory on a read-only subvolume is accessed, the atime is updated. This results in a write operation to a read-only subvolume. I believe that access times should never be updated on read-only subvolumes. To reproduce: # mkfs.btrfs -f /dev/dm-3 (...) # mount /dev/dm-3 /mnt # btrfs subvol create /mnt/sub Create subvolume '/mnt/sub' # mkdir /mnt/sub/dir # echo "abc" > /mnt/sub/dir/file # btrfs subvol snapshot -r /mnt/sub /mnt/rosnap Create a readonly snapshot of '/mnt/sub' in '/mnt/rosnap' # stat /mnt/rosnap/dir File: `/mnt/rosnap/dir' Size: 8 Blocks: 0 IO Block: 4096 directory Device: 16h/22d Inode: 257 Links: 1 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2013-09-11 07:21:49.389157126 -0400 Modify: 2013-09-11 07:22:02.330156079 -0400 Change: 2013-09-11 07:22:02.330156079 -0400 # ls /mnt/rosnap/dir file # stat /mnt/rosnap/dir File: `/mnt/rosnap/dir' Size: 8 Blocks: 0 IO Block: 4096 directory Device: 16h/22d Inode: 257 Links: 1 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2013-09-11 07:22:56.797151670 -0400 Modify: 2013-09-11 07:22:02.330156079 -0400 Change: 2013-09-11 07:22:02.330156079 -0400 Reported-by: Koen De Wit <koen.de.wit@oracle.com> Signed-off-by: Guangyu Sun <guangyu.sun@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21btrfs: Add btrfs: prefix to kernel log outputFrank Holton1-2/+2
The kernel log entries for device label %s and device fsid %pU are missing the btrfs: prefix. Add those here. Signed-off-by: Frank Holton <fholton@gmail.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21btrfs: refuse to remount read-write after abortDavid Sterba1-0/+6
It's still possible to flip the filesystem into RW mode after it's remounted RO due to an abort. There are lots of places that check for the superblock error bit and will not write data, but we should not let the filesystem appear read-write. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when ↵chandan1-1/+1
arg is 0 This patch makes it possible to set BTRFS_FS_TREE_OBJECTID as the default subvolume by passing a subvolume id of 0. Signed-off-by: chandan <chandan@linux.vnet.ibm.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: don't leak transaction in btrfs_sync_file()Filipe David Borba Manana1-2/+2
In btrfs_sync_file(), if the call to btrfs_log_dentry_safe() returns a negative error (for e.g. -ENOMEM via btrfs_log_inode()), we would return without ending/freeing the transaction. Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: add the missing mutex unlock in write_all_supers()Stefan Behrens1-0/+1
The BUG() was replaced by btrfs_error() and return -EIO with the patch "get rid of one BUG() in write_all_supers()", but the missing mutex_unlock() was overlooked. The 0-DAY kernel build service from Intel reported the missing unlock which was found by the coccinelle tool: fs/btrfs/disk-io.c:3422:2-8: preceding lock on line 3374 Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: iput inode on allocation failureJosef Bacik1-0/+4
We don't do the iput when we fail to allocate our delayed delalloc work in __start_delalloc_inodes, fix this. Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: remove space_info->reservation_progressJosef Bacik2-12/+0
This isn't used for anything anymore, just remove it. Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2013-09-21Btrfs: kill delay_iput arg to the wait_ordered functionsJosef Bacik8-33/+14
This is a left over of how we used to wait for ordered extents, which was to grab the inode and then run filemap flush on it. However if we have an ordered extent then we already are holding a ref on the inode, and we just use btrfs_start_ordered_extent anyway, so there is no reason to have an extra ref on the inode to start work on the ordered extent. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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