| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Second Round of Renesas ARM Based SoC DT Fixes for v3.14
Correct i2c clock references for r8a7790 (R-Car H2) SoC
The error was introduced in 72197ca7a1cb1cea5 ("ARM: shmobile: r8a7790:
Reference clocks") which is queued up for v3.14.
* tag 'renesas-dt-fixes2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock reference
Signed-off-by: Olof Johansson <olof@lixom.net>
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The R8A7790's dtsi file i2c0, i2c1, i2c2, and i2c3 nodes have clock
references to the mstp3_clks clock node, however these clocks are in the
mstp9_clks node.
The error was introducted in 72197ca7a1cb1cea5 ("ARM: shmobile: r8a7790:
Reference clocks") which is in Simon's current development tree.
This patch fixes the following error:
of_clk_src_onecell_get: invalid clock index 31
i2c-rcar e6508000.i2c: cannot get clock
i2c-rcar: probe of e6508000.i2c failed with error -2
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Select CONFIG_AT803X_PHY so that we can boot hummingboard via NFS.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Drop automatic selection of TI_EDMA from Keystone Kconfig file,
as it produces build warning in case if CONFIG_DMADEVICES is not set:
warning: (ARCH_KEYSTONE) selects TI_EDMA which has unmet direct dependencies (DMADEVICES && (ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE))
Instead enable TI EDMA support from defconfig.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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instead of listing drivers one by one, use regex patterns to involve all
SiRF drivers directly.
this also adds sirf UART and watchdog drivers automatically from:
drivers/tty/serial/sirfsoc_uart.*
drivers/watchdog/sirfsoc_wdt.c
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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mvebu fixes for v3.13 (incremental #2)
- allow building and booting DT and non-DT plat-orion SoCs
- catch proper return value for kirkwood_pm_init()
- properly check return of of_iomap to solve boot hangs (mirabox, others)
- remove a compile warning on Armada 370 with non-SMP.
* tag 'mvebu-fixes-3.13-2' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: fix compilation warning on Armada 370 (i.e. non-SMP)
ARM: mvebu: Fix kernel hang in mvebu_soc_id_init() when of_iomap failed
ARM: kirkwood: kirkwood_pm_init() should return void
ARM: orion: provide C-style interrupt handler for MULTI_IRQ_HANDLER
Signed-off-by: Olof Johansson <olof@lixom.net>
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The following appears during compilation for an Armada 370 target
because 'irq_controller_lock' is used only when CONFIG_SMP is
enabled:
drivers/irqchip/irq-armada-370-xp.c:62:8: warning: 'irq_controller_lock' defined but not used [-Wunused-variable]
Fix that warning by moving declaration of 'irq_controller_lock'
inside existing #ifdef.
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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When pci_base is accessed whereas it has not been properly mapped by
of_iomap() the kernel hang. The check of this pointer made an improper
use of IS_ERR() instead of comparing to NULL. This patch fix this
issue.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: stable@vger.kernel.org # v3.12+: af8d1c63afcb: ARM: mvebu: Add support to get the ID and the revision of a SoC
Cc: stable@vger.kernel.org # v3.12+: 85e618a1be2b: ARM: mvebu: Add quirk for i2c for the OpenBlocks AX3-4 board
Cc: stable@vger.kernel.org # v3.12+: 6cf70ae928ba: i2c: mv64xxx: Fix bus hang on A0 version of the Armada XP SoCs
Cc: stable@vger.kernel.org # v3.12+: f8b94beb7e6a: i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible
Cc: stable@vger.kernel.org # v3.12+
Fixes: 930ab3d403ae (i2c: mv64xxx: Add I2C Transaction Generator support)
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This function was originally meant to return void as declared in the
common.h header. Fix it and include the header to catch these errors
in the future.
[jac] removed 'return 0;' to clear this warning:
arch/arm/mach-kirkwood/pm.c: In function 'kirkwood_pm_init':
arch/arm/mach-kirkwood/pm.c:73:2: warning: 'return' with a value, in function returning void [enabled by default]
Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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DT-enabled Marvell Kirkwood and Dove SoCs make use of an irqchip
driver. As expected for irqchip drivers, it uses a C-style
interrupt handler and therefore selects MULTI_IRQ_HANDLER.
Now, compiling a kernel with both non-DT and DT support enabled,
selecting MULTI_IRQ_HANDLER will break ASM irq handler used by
non-DT boards.
Therefore, we provide a C-style irq handler even for non-DT boards,
if MULTI_IRQ_HANDLER is set. By installing the C-style irq handler
in orion_irq_init this is transparent to all non-DT board files.
While the regression report was filed on Marvell Kirkwood, also
Marvell Dove non-DT boards are affected and fixed by this patch.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Reported-by: Ian Campbell <ijc@hellion.org.uk>
Cc: <stable@vger.kernel.org> # v3.12+
Fixes: 2326f04321a9 ("ARM: kirkwood: convert to DT irqchip and clocksource")
Fixes: f07d73e33d0e ("ARM: dove: convert to DT irqchip and clocksource")
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Add nodes for the Arasan SDHCI controller to Zynq dts files.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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SMP is a user configurable option, not a hardware feature and should not
be selected.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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DEBUG_FS used to be selected by COMMON_CLK_DEBUG, which was enabled
by tegra_defconfig. However, this config option no longer exists, so
no longer selects DEBUG_FS, and nothing else selects it either. So,
"make tegra_defconfig" no longer enables DEBUG_FS in .config.
Rebuild tegra_defconfig on top of next-20140424, while manually
re-enabling DEBUG_FS.
Reasons for removed entries are:
- I2C_MUX: selected by MEDIA_SUBDRV_AUTOSELECT
- DRM_PANEL: selected by DRM_TEGRA
- NEW_LEDS: selected by many things; at least VT
- LEDS_CLASS: selected by many things; at least VT
- LEDS_TRIGGERS: selected by many things; at least VT
- COMMON_CLK_DEBUG: no longer exists
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
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multi_v7_defconfig was missing a large number of options that were in
tegra_defconfig. This patch adds them. The changes fall into the
following categories:
* Enable more Tegra SoC options/drivers.
* Enable more drivers for Tegra boards.
* Enable more options that are useful for running distros.
The patch removes a few lines as well, simply because those options are
now selected by something else, and "make savedefconfig" removes them. I
verified that the options appear in .config after
"make multi_v7_defconfig".
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This board was missed when converting all the others to proper
abstracted GPIO handling. Fix it up the right way by requesting
and driving GPIO line 0 high through gpiolib to power off the
machine.
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Commit 78d1632183454dba46ca8295484a5e7603acdc18 deleted the
static mappings of the core modules, but this static map is
still needed on the Integrator/CP (not the Integrator/AP).
Restore the static map on the Integrator/CP.
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This allows us to probe the clock controller devices and boot to a
serial console on all DT enabled MSM platforms.
Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add the necessary DT nodes to probe the clock controllers on MSM
devices as well as hook up the uart nodes to the clock
controllers. This should allow us to boot to a serial console on
all DT enabled MSM platforms.
Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Move all OMAP4 PM errata initializations to centralized location in
omap4_pm_init_early. This allows for users to utilize the erratas
in various submodules as needed.
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859
"ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..."
need to be applied not only when system is booting, but when MPUSS hits
OSWR state through CPUIdle too. Without this WA the same issue is
reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460
when CONFIG_CPU_IDLE is enabled.
After MPUSS has enterred OSWR and waken up:
- GIC distributor became disabled forever
- scheduling is not performed any more
Cc: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reported-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
"This is a pretty big pull, and most of these changes have been
floating in btrfs-next for a long time. Filipe's properties work is a
cool building block for inheriting attributes like compression down on
a per inode basis.
Jeff Mahoney kicked in code to export filesystem info into sysfs.
Otherwise, lots of performance improvements, cleanups and bug fixes.
Looks like there are still a few other small pending incrementals, but
I wanted to get the bulk of this in first"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (149 commits)
Btrfs: fix spin_unlock in check_ref_cleanup
Btrfs: setup inode location during btrfs_init_inode_locked
Btrfs: don't use ram_bytes for uncompressed inline items
Btrfs: fix btrfs_search_slot_for_read backwards iteration
Btrfs: do not export ulist functions
Btrfs: rework ulist with list+rb_tree
Btrfs: fix memory leaks on walking backrefs failure
Btrfs: fix send file hole detection leading to data corruption
Btrfs: add a reschedule point in btrfs_find_all_roots()
Btrfs: make send's file extent item search more efficient
Btrfs: fix to catch all errors when resolving indirect ref
Btrfs: fix protection between walking backrefs and root deletion
btrfs: fix warning while merging two adjacent extents
Btrfs: fix infinite path build loops in incremental send
btrfs: undo sysfs when open_ctree() fails
Btrfs: fix snprintf usage by send's gen_unique_name
btrfs: fix defrag 32-bit integer overflow
btrfs: sysfs: list the NO_HOLES feature
btrfs: sysfs: don't show reserved incompat feature
btrfs: call permission checks earlier in ioctls and return EPERM
...
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Our goto out should have gone a little farther.
Signed-off-by: Chris Mason <clm@fb.com>
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We have a race during inode init because the BTRFS_I(inode)->location is setup
after the inode hash table lock is dropped. btrfs_find_actor uses the location
field, so our search might not find an existing inode in the hash table if we
race with the inode init code.
This commit changes things to setup the location field sooner. Also the find actor now
uses only the location objectid to match inodes. For inode hashing, we just
need a unique and stable test, it doesn't have to reflect the inode numbers we
show to userland.
Signed-off-by: Chris Mason <clm@fb.com>
CC: stable@vger.kernel.org
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If we truncate an uncompressed inline item, ram_bytes isn't updated to reflect
the new size. The fixe uses the size directly from the item header when
reading uncompressed inlines, and also fixes truncate to update the
size as it goes.
Reported-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
CC: stable@vger.kernel.org
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If the current path's leaf slot is 0, we do search for the previous
leaf (via btrfs_prev_leaf) and set the new path's leaf slot to a
value corresponding to the number of items - 1 of the former leaf.
Fix this by using the slot set by btrfs_prev_leaf, decrementing it
by 1 if it's equal to the leaf's number of items.
Use of btrfs_search_slot_for_read() for backward iteration is used in
particular by the send feature, which could miss items when the input
leaf has less items than its previous leaf.
This could be reproduced by running btrfs/007 from xfstests in a loop.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
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There are not any users that use ulist except Btrfs,don't
export them.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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We are really suffering from now ulist's implementation, some developers
gave their try, and i just gave some of my ideas for things:
1. use list+rb_tree instead of arrary+rb_tree
2. add cur_list to iterator rather than ulist structure.
3. add seqnum into every node when they are added, this is
used to do selfcheck when iterating node.
I noticed Zach Brown's comments before, long term is to kick off
ulist implementation, however, for now, we need at least avoid
arrary from ulist.
Cc: Liu Bo <bo.li.liu@oracle.com>
Cc: Josef Bacik <jbacik@fb.com>
Cc: Zach Brown <zab@redhat.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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When walking backrefs, we may iterate every inode's extent
and add/merge them into ulist, and the caller will free memory
from ulist.
However, if we fail to allocate inode's extents element
memory or ulist_add() fail to allocate memory, we won't
add allocated memory into ulist, and the caller won't
free some allocated memory thus memory leaks happen.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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There was a case where file hole detection was incorrect and it would
cause an incremental send to override a section of a file with zeroes.
This happened in the case where between the last leaf we processed which
contained a file extent item for our current inode and the leaf we're
currently are at (and has a file extent item for our current inode) there
are only leafs containing exclusively file extent items for our current
inode, and none of them was updated since the previous send operation.
The file hole detection code would incorrectly consider the file range
covered by these leafs as a hole.
A test case for xfstests follows soon.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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I can easily trigger the following warnings when enabling quota
in my virtual machine(running Opensuse), Steps are firstly creating
a subvolume full of fragment extents, and then create many snapshots
(500 in my test case).
[ 2362.808459] BUG: soft lockup - CPU#0 stuck for 22s! [btrfs-qgroup-re:1970]
[ 2362.809023] task: e4af8450 ti: e371c000 task.ti: e371c000
[ 2362.809026] EIP: 0060:[<fa38f4ae>] EFLAGS: 00000246 CPU: 0
[ 2362.809049] EIP is at __merge_refs+0x5e/0x100 [btrfs]
[ 2362.809051] EAX: 00000000 EBX: cfadbcf0 ECX: 00000000 EDX: cfadbcb0
[ 2362.809052] ESI: dd8d3370 EDI: e371dde0 EBP: e371dd6c ESP: e371dd5c
[ 2362.809054] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 2362.809055] CR0: 80050033 CR2: ac454d50 CR3: 009a9000 CR4: 001407d0
[ 2362.809099] Stack:
[ 2362.809100] 00000001 e371dde0 dfcc6890 f29f8000 e371de28 fa39016d 00000011 00000001
[ 2362.809105] 99bfc000 00000000 93928000 00000000 00000001 00000050 e371dda8 00000001
[ 2362.809109] f3a31000 f3413000 00000001 e371ddb8 000040a8 00000202 00000000 00000023
[ 2362.809113] Call Trace:
[ 2362.809136] [<fa39016d>] find_parent_nodes+0x34d/0x1280 [btrfs]
[ 2362.809156] [<fa391172>] btrfs_find_all_roots+0xb2/0x110 [btrfs]
[ 2362.809174] [<fa3934a8>] btrfs_qgroup_rescan_worker+0x358/0x7a0 [btrfs]
[ 2362.809180] [<c024d0ce>] ? lock_timer_base.isra.39+0x1e/0x40
[ 2362.809199] [<fa3648df>] worker_loop+0xff/0x470 [btrfs]
[ 2362.809204] [<c027a88a>] ? __wake_up_locked+0x1a/0x20
[ 2362.809221] [<fa3647e0>] ? btrfs_queue_worker+0x2b0/0x2b0 [btrfs]
[ 2362.809225] [<c025ebbc>] kthread+0x9c/0xb0
[ 2362.809229] [<c06b487b>] ret_from_kernel_thread+0x1b/0x30
[ 2362.809233] [<c025eb20>] ? kthread_create_on_node+0x110/0x110
By adding a reschedule point at the end of btrfs_find_all_roots(), i no longer
hit these warnings.
Cc: Josef Bacik <jbacik@fb.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Instead of looking for a file extent item, process it, release the path
and do a btree search for the next file extent item, just process all
file extent items in a leaf without intermediate btree searches. This way
we save cpu and we're not blocking other tasks or affecting concurrency on
the btree, because send's paths use the commit root and skip btree node/leaf
locking.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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We can only tolerate ENOENT here, for other errors, we should
return directly.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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There is a race condition between resolving indirect ref and root deletion,
and we should gurantee that root can not be destroyed to avoid accessing
broken tree here.
Here we fix it by holding @subvol_srcu, and we will release it as soon
as we have held root node lock.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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When we have two adjacent extents in relink_extent_backref,
we try to merge them. When we use btrfs_search_slot to locate the
slot for the current extent, we shouldn't set "ins_len = 1",
because we will merge it into the previous extent rather than
insert a new item. Otherwise, we may happen to create a new leaf
in btrfs_search_slot and path->slot[0] will be 0. Then we try to
fetch the previous item using "path->slots[0]--", and it will cause
a warning as follows:
[ 145.713385] WARNING: CPU: 3 PID: 1796 at fs/btrfs/extent_io.c:5043 map_private_extent_buffer+0xd4/0xe0
[ 145.713387] btrfs bad mapping eb start 5337088 len 4096, wanted 167772306 8
...
[ 145.713462] [<ffffffffa034b1f4>] map_private_extent_buffer+0xd4/0xe0
[ 145.713476] [<ffffffffa030097a>] ? btrfs_free_path+0x2a/0x40
[ 145.713485] [<ffffffffa0340864>] btrfs_get_token_64+0x64/0xf0
[ 145.713498] [<ffffffffa033472c>] relink_extent_backref+0x41c/0x820
[ 145.713508] [<ffffffffa0334d69>] btrfs_finish_ordered_io+0x239/0xa80
I encounter this warning when running defrag having mkfs.btrfs
with option -M. At the same time there are read/writes & snapshots
running at background.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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The send operation processes inodes by their ascending number, and assumes
that any rename/move operation can be successfully performed (sent to the
caller) once all previous inodes (those with a smaller inode number than the
one we're currently processing) were processed.
This is not true when an incremental send had to process an hierarchical change
between 2 snapshots where the parent-children relationship between directory
inodes was reversed - that is, parents became children and children became
parents. This situation made the path building code go into an infinite loop,
which kept allocating more and more memory that eventually lead to a krealloc
warning being displayed in dmesg:
WARNING: CPU: 1 PID: 5705 at mm/page_alloc.c:2477 __alloc_pages_nodemask+0x365/0xad0()
Modules linked in: btrfs raid6_pq xor pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) snd_hda_codec_hdmi snd_hda_codec_realtek joydev radeon snd_hda_intel snd_hda_codec snd_hwdep snd_seq_midi snd_pcm psmouse i915 snd_rawmidi serio_raw snd_seq_midi_event lpc_ich snd_seq snd_timer ttm snd_seq_device rfcomm drm_kms_helper parport_pc bnep bluetooth drm ppdev snd soundcore i2c_algo_bit snd_page_alloc binfmt_misc video lp parport r8169 mii hid_generic usbhid hid
CPU: 1 PID: 5705 Comm: btrfs Tainted: G O 3.13.0-rc7-fdm-btrfs-next-18+ #3
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Pro4, BIOS P1.50 09/04/2012
[ 5381.660441] 00000000000009ad ffff8806f6f2f4e8 ffffffff81777434 0000000000000007
[ 5381.660447] 0000000000000000 ffff8806f6f2f528 ffffffff8104a9ec ffff8807038f36f0
[ 5381.660452] 0000000000000000 0000000000000206 ffff8807038f2490 ffff8807038f36f0
[ 5381.660457] Call Trace:
[ 5381.660464] [<ffffffff81777434>] dump_stack+0x4e/0x68
[ 5381.660471] [<ffffffff8104a9ec>] warn_slowpath_common+0x8c/0xc0
[ 5381.660476] [<ffffffff8104aa3a>] warn_slowpath_null+0x1a/0x20
[ 5381.660480] [<ffffffff81144995>] __alloc_pages_nodemask+0x365/0xad0
[ 5381.660487] [<ffffffff8108313f>] ? local_clock+0x4f/0x60
[ 5381.660491] [<ffffffff811430e8>] ? free_one_page+0x98/0x440
[ 5381.660495] [<ffffffff8108313f>] ? local_clock+0x4f/0x60
[ 5381.660502] [<ffffffff8113fae4>] ? __get_free_pages+0x14/0x50
[ 5381.660508] [<ffffffff81095fb8>] ? trace_hardirqs_off_caller+0x28/0xd0
[ 5381.660515] [<ffffffff81183caf>] alloc_pages_current+0x10f/0x1f0
[ 5381.660520] [<ffffffff8113fae4>] ? __get_free_pages+0x14/0x50
[ 5381.660524] [<ffffffff8113fae4>] __get_free_pages+0x14/0x50
[ 5381.660530] [<ffffffff8115dace>] kmalloc_order_trace+0x3e/0x100
[ 5381.660536] [<ffffffff81191ea0>] __kmalloc_track_caller+0x220/0x230
[ 5381.660560] [<ffffffffa0729fdb>] ? fs_path_ensure_buf.part.12+0x6b/0x200 [btrfs]
[ 5381.660564] [<ffffffff8178085c>] ? retint_restore_args+0xe/0xe
[ 5381.660569] [<ffffffff811580ef>] krealloc+0x6f/0xb0
[ 5381.660586] [<ffffffffa0729fdb>] fs_path_ensure_buf.part.12+0x6b/0x200 [btrfs]
[ 5381.660601] [<ffffffffa072a208>] fs_path_prepare_for_add+0x98/0xb0 [btrfs]
[ 5381.660615] [<ffffffffa072a2bc>] fs_path_add_path+0x2c/0x60 [btrfs]
[ 5381.660628] [<ffffffffa072c55c>] get_cur_path+0x7c/0x1c0 [btrfs]
Even without this loop, the incremental send couldn't succeed, because it would attempt
to send a rename/move operation for the lower inode before the highest inode number was
renamed/move. This issue is easy to trigger with the following steps:
$ mkfs.btrfs -f /dev/sdb3
$ mount /dev/sdb3 /mnt/btrfs
$ mkdir -p /mnt/btrfs/a/b/c/d
$ mkdir /mnt/btrfs/a/b/c2
$ btrfs subvol snapshot -r /mnt/btrfs /mnt/btrfs/snap1
$ mv /mnt/btrfs/a/b/c/d /mnt/btrfs/a/b/c2/d2
$ mv /mnt/btrfs/a/b/c /mnt/btrfs/a/b/c2/d2/cc
$ btrfs subvol snapshot -r /mnt/btrfs /mnt/btrfs/snap2
$ btrfs send -p /mnt/btrfs/snap1 /mnt/btrfs/snap2 > /tmp/incremental.send
The structure of the filesystem when the first snapshot is taken is:
. (ino 256)
|-- a (ino 257)
|-- b (ino 258)
|-- c (ino 259)
| |-- d (ino 260)
|
|-- c2 (ino 261)
And its structure when the second snapshot is taken is:
. (ino 256)
|-- a (ino 257)
|-- b (ino 258)
|-- c2 (ino 261)
|-- d2 (ino 260)
|-- cc (ino 259)
Before the move/rename operation is performed for the inode 259, the
move/rename for inode 260 must be performed, since 259 is now a child
of 260.
A test case for xfstests, with a more complex scenario, will follow soon.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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reproducer:
mkfs.btrfs -f /dev/sdb &&\
mount /dev/sdb /btrfs &&\
btrfs dev add -f /dev/sdc /btrfs &&\
umount /btrfs &&\
wipefs -a /dev/sdc &&\
mount -o degraded /dev/sdb /btrfs
//above mount fails so try with RO
mount -o degraded,ro /dev/sdb /btrfs
------
sysfs: cannot create duplicate filename '/fs/btrfs/3f48c79e-5ed0-4e87-b189-86e749e503f4'
::
dump_stack+0x49/0x5e
warn_slowpath_common+0x87/0xb0
warn_slowpath_fmt+0x41/0x50
strlcat+0x69/0x80
sysfs_warn_dup+0x87/0xa0
sysfs_add_one+0x40/0x50
create_dir+0x76/0xc0
sysfs_create_dir_ns+0x7a/0xc0
kobject_add_internal+0xad/0x220
kobject_add_varg+0x38/0x60
kobject_init_and_add+0x53/0x70
mutex_lock+0x11/0x40
__free_pages+0x25/0x30
free_pages+0x41/0x50
selinux_sb_copy_data+0x14e/0x1e0
mount_fs+0x3e/0x1a0
vfs_kern_mount+0x71/0x120
do_mount+0x3f7/0x980
SyS_mount+0x8b/0xe0
system_call_fastpath+0x16/0x1b
------
further 'modprobe -r btrfs' fails as well
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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The buffer size argument passed to snprintf must account for the
trailing null byte added by snprintf, and it returns a value >= then
sizeof(buffer) when the string can't fit in the buffer.
Since our buffer has a size of 64 characters, and the maximum orphan
name we can generate is 63 characters wide, we must pass 64 as the
buffer size to snprintf, and not 63.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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When defragging a very large file, the cluster variable can wrap its 32-bit
signed int type and become negative, which eventually gets passed to
btrfs_force_ra() as a very large unsigned long value. On 32-bit platforms,
this eventually results in an Oops from the SLAB allocator.
Change the cluster and max_cluster signed int variables to unsigned long to
match the readahead functions. This also allows the min() comparison in
btrfs_defrag_file() to work as intended.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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The COMPRESS_LZOv2 incompat featue is currently not implemented, the bit
is only reserved, no point to list it in sysfs.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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The owner and capability checks in IOC_SUBVOL_SETFLAGS and
SET_RECEIVED_SUBVOL should be called before any other checks are done.
Also unify the error code to EPERM.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Currently, any user can snapshot any subvolume if the path is accessible and
thus indirectly create and keep files he does not own under his direcotries.
This is not possible with traditional directories.
In security context, a user can snapshot root filesystem and pin any
potentially buggy binaries, even if the updates are applied.
All the snapshots are visible to the administrator, so it's possible to
verify if there are suspicious snapshots.
Another more practical problem is that any user can pin the space used
by eg. root and cause ENOSPC.
Original report:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/484786
CC: stable@vger.kernel.org
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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We allocate the free space from the former block group, not the current
one, so should use the former one to output the trace information.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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used_block_group is just used for the space cluster which doesn't
belong to the current block group, the other place needn't use it.
Or the logic of code seems unclear.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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cache miss
It is better that the position of the lock is close to the data which is
protected by it, because they may be in the same cache line, we will load
less cache lines when we access them. So we rearrange the members' position
of btrfs_space_info structure to make the lock be closer to the its data.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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To search tree root without transaction protection, we should neither search commit
root nor skip locking here, fix it.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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logging csum
The performance of fsync dropped down suddenly sometimes, the main reason
of this problem was that we might only flush part dirty pages in a ordered
extent, then got that ordered extent, wait for the csum calcucation. But if
no task flushed the left part, we would wait until the flusher flushed them,
sometimes we need wait for several seconds, it made the performance drop
down suddenly. (On my box, it drop down from 56MB/s to 4-10MB/s)
This patch improves the above problem by flushing left dirty pages aggressively.
Test Environment:
CPU: 2CPU * 2Cores
Memory: 4GB
Partition: 20GB(HDD)
Test Command:
# sysbench --num-threads=8 --test=fileio --file-num=1 \
> --file-total-size=8G --file-block-size=32768 \
> --file-io-mode=sync --file-fsync-freq=100 \
> --file-fsync-end=no --max-requests=10000 \
> --file-test-mode=rndwr run
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Steps to reproduce:
# mkfs.btrfs -f /dev/sda8
# mount /dev/sda8 /mnt -o flushoncommit
# dd if=/dev/zero of=/mnt/data bs=4k count=102400 &
# mount /dev/sda8 /mnt -o remount, ro
When remounting RW to RO, the logic is to firstly set flag
to RO and then commit transaction, however with option
flushoncommit enabled,we will do RO check within committing
transaction, so we get a transaction abortion here.
Actually,here check is wrong, we should check if FS_STATE_ERROR
is set, fix it.
Reported-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Suggested-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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When we are looking for file extent items that intersect the cloning
range, for each one that falls completely outside the range, don't
release the path and do another full tree search - just move on
to the next slot and copy the file extent item into our buffer only
if the item intersects the cloning range.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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