- 04 Jan, 2012 3 commits
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Yongqiang Yang authored
This patch adds a structure which will be used by 64bit-resize interface. Two functions which allocate and destroy the structure respectively are added. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Yongqiang Yang authored
This patch adds a function named ext4_add_new_descs() which adds one or more new group descriptors to a fs and whose code is copied from ext4_group_add(). The function will be used by new resize implementation. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Yongqiang Yang authored
This patch added a function named ext4_group_extend_no_check() whose code is copied from ext4_group_extend(). ext4_group_extend_no_check() assumes the parameter is valid and has been checked by caller. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 29 Dec, 2011 4 commits
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Akinobu Mita authored
ext4_{set,clear}_bit() is defined as __test_and_{set,clear}_bit_le() for ext4. Only two ext4_{set,clear}_bit() calls check the return value. The rest of calls ignore the return value and they can be replaced with __{set,clear}_bit_le(). This changes ext4_{set,clear}_bit() from __test_and_{set,clear}_bit_le() to __{set,clear}_bit_le() and introduces ext4_test_and_{set,clear}_bit() for the two places where old bit needs to be returned. This ext4_{set,clear}_bit() change is considered safe, because if someone uses these macros without noticing the change, new ext4_{set,clear}_bit don't have return value and causes compiler errors where the return value is used. This also removes unused ext4_find_first_zero_bit(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Zheng Liu authored
The functions ext4_block_truncate_page() and ext4_block_zero_page_range() are no longer used, so remove them. Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Theodore Ts'o authored
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Zheng Liu authored
Fix ext4_debug format in ext4_ext_handle_uninitialized_extents() and ext4_end_io_dio(). Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 28 Dec, 2011 3 commits
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Yongqiang Yang authored
Currently, we clear revoked flag only when a block is reused. However, this can tigger a false journal error. Consider a situation when a block is used as a meta block and is deleted(revoked) in ordered mode, then the block is allocated as a data block to a file. At this moment, user changes the file's journal mode from ordered to journaled and truncates the file. The block will be considered re-revoked by journal because it has revoked flag still pending from the last transaction and an assertion triggers. We fix the problem by keeping the revoked status more uptodate - we clear revoked flag when switching revoke tables to reflect there is no revoked buffers in current transaction any more. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Yongqiang Yang authored
It's necessary to flush the journal when switching away from data=journal mode. This is because there are no revoke records when data blocks are journalled, but revoke records are required in the other journal modes. However, it is not necessary to flush the journal when switching into data=journal mode, and flushing the journal is expensive. So let's avoid it in that case. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Yongqiang Yang authored
delalloc blocks should be allocated before changing journal mode, otherwise they can not be allocated and even more truncate on delalloc blocks could triggre BUG by flushing delalloc buffers. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 21 Dec, 2011 1 commit
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Theodore Ts'o authored
In the code to support EXT4_IOC_MOVE_EXT, ext4_ioctl calls file_remove_suid() after the call to ext4_move_extents() if any extents has been moved. There are at least three things wrong with this. First, file_remove_suid() should be called with i_mutex down, which is not here. Second, it should be called before the donor file has been modified, to avoid a potential race condition. Third, and most importantly, it's pointless, because ext4_file_extents() already checks if the donor file has the setuid or setgid bit set, and will return an error in that case. So the first two objections don't really matter, since file_remove_suid() will never need to modify the inode in any case. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 19 Dec, 2011 1 commit
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Robin Dong authored
We found performance regression when using bigalloc with "nodelalloc" (1MB cluster size): 1. mke2fs -C 1048576 -O ^has_journal,bigalloc /dev/sda 2. mount -o nodelalloc /dev/sda /test/ 3. time dd if=/dev/zero of=/test/io bs=1048576 count=1024 The "dd" will cost about 2 seconds to finish, but if we mke2fs without "bigalloc", "dd" will only cost less than 1 second. The reason is: when using ext4 with "nodelalloc", it will call ext4_find_delalloc_cluster() nearly everytime it call ext4_ext_map_blocks(), and ext4_find_delalloc_range() will also scan all pages in cluster because no buffer is "delayed". A cluster has 256 pages (1MB cluster), so it will scan 256 * 256k pags when creating a 1G file. That severely hurts the performance. Therefore, we return immediately from ext4_find_delalloc_range() in nodelalloc mode, since by definition there can't be any delalloc pages. Signed-off-by: Robin Dong <sanbai@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 18 Dec, 2011 4 commits
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Curt Wohlgemuth authored
In get_implied_cluster_alloc(), rr_cluster_end was being defined and set, but was never used. Removed this. Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Jan Kara authored
When insert_inode_locked() fails in ext4_new_inode() it most likely means inode bitmap got corrupted and we allocated again inode which is already in use. Also doing unlock_new_inode() during error recovery is wrong since the inode does not have I_NEW set. Fix the problem by jumping to fail: (instead of fail_drop:) which declares filesystem error and does not call unlock_new_inode(). Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Zheng Liu authored
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Yongqiang Yang authored
pa_inode in group_pa is set NULL in ext4_mb_new_group_pa, so pa_inode should be not referenced. Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 17 Dec, 2011 1 commit
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Linus Torvalds authored
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- 16 Dec, 2011 22 commits
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Linus Torvalds authored
This reverts commit eb1711bb. It blows up the i915 seqno tracking, resulting in the BUG_ON(seqno == 0); in i915_wait_request() triggering, which will cause lock-ups. See for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010 https://lkml.org/lkml/2011/12/14/395Reported-requested-and-tested-by: Dirk Hohndel <dirk@hohndel.org> Reported-by: Richard Eames <Richard.Eames@flinders.edu.au> Reported-by: Rocko Requin <rockorequin@hotmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc32: Be less strict in matching %lo part of relocation. sbus: convert drivers/sbus/char/* to use module_platform_driver() bbc_i2c: Remove unneeded err variable sparc: Use kmemdup rather than duplicating its implementation
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow(). sch_gred: should not use GFP_KERNEL while holding a spinlock ipip, sit: copy parms.name after register_netdevice ipv6: Fix for adding multicast route for loopback device automatically. ssb: fix init regression with SoCs rtl8192{ce,cu,de,se}: avoid problems because of possible ERFOFF -> ERFSLEEP transition mac80211: fix another race in aggregation start fsl_pq_mdio: Clean up tbi address configuration ppp: fix pptp double release_sock in pptp_bind() net/fec: fix the use of pdev->id ath9k: fix check for antenna diversity support batman-adv: delete global entry in case of roaming batman-adv: in case of roaming mark the client with TT_CLIENT_ROAM Bluetooth: Correct version check in hci_setup btusb: fix a memory leak in btusb_send_frame() Bluetooth: bnep: Fix module reference Bluetooth: cmtp: Fix module reference Bluetooth: btmrvl: support Marvell Bluetooth device SD8797
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Linus Torvalds authored
Merge branches 'for-linus' and 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: unplug every once and a while Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code Btrfs: only set cache_generation if we setup the block group Btrfs: don't panic if orphan item already exists Btrfs: fix leaked space in truncate Btrfs: fix how we do delalloc reservations and how we free reservations on error Btrfs: deal with enospc from dirtying inodes properly Btrfs: fix num_workers_starting bug and other bugs in async thread BTRFS: Establish i_ops before calling d_instantiate Btrfs: add a cond_resched() into the worker loop Btrfs: fix ctime update of on-disk inode btrfs: keep orphans for subvolume deletion Btrfs: fix inaccurate available space on raid0 profile Btrfs: fix wrong disk space information of the files Btrfs: fix wrong i_size when truncating a file to a larger size Btrfs: fix btrfs_end_bio to deal with write errors to a single mirror * 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: lower the dirty balance poll interval
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git://people.freedesktop.org/~keithp/linuxLinus Torvalds authored
* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: drm/i915/dp: Dither down to 6bpc if it makes the mode fit drm/i915: enable semaphores on per-device defaults drm/i915: don't set unpin_work if vblank_get fails drm/i915: By default, enable RC6 on IVB and SNB when reasonable iommu: Export intel_iommu_enabled to signal when iommu is in use drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check drm/i915: prevent division by zero when asking for chipset power drm/i915: add PCH info to i915_capabilities drm/i915: set the right SDVO transcoder for CPT drm/i915: no-lvds quirk for ASUS AT5NM10T-I drm/i915: Treat pre-gen4 backlight duty cycle value consistently drm/i915: Hook up Ivybridge eDP drm/i915: add multi-threaded forcewake support
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: HDA: Use LPIB Position fix for Intel SCH Poulsbo ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device ASoC: Fix hx4700 error handling to free gpios if snd_soc_register_card fails ASoC: WM8958: correctly show firmware magic on mismatch ASoC: mxs: Add appropriate MODULE_ALIAS() ASoC: mxs: Add missing MODULE_LICENSE("GPL") ASoC: Fix WM8996 24.576MHz clock operation ASoC: Include linux/module.h for smdk2443_wm9710 ASoC: Fix a typo in jive_wm8750 ASoC: Fix build dependency for SND_SOC_JZ4740_CODEC ASoC: Include linux/io.h for jz4740 codec
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git://git.secretlab.ca/git/linux-2.6Linus Torvalds authored
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: Fix DA9052 GPIO build errors. gpio: mpc8xxx: don't allow input-only pins to be output for MPC5121 gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip gpio-ml-ioh: fix a bug in the interrupt handler gpio: pl061: drop extra check for NULL platform_data
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP: rx51: fix USB ARM: OMAP: mcbsp: Fix possible memory corruption arm/imx: fix power button on imx51 babbage board ARM: imx: fix cpufreq build errors ARM: mx5: add __initconst for fec pdata MXC PWM: should active during DOZE/WAIT/DBG mode ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210 ARM: SAMSUNG: remove duplicated header include
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git://git.kernel.dk/linux-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/linux-block: block: don't kick empty queue in blk_drain_queue() block/swim3: Locking fixes loop: Fix discard_alignment default setting cfq-iosched: fix cfq_cic_link() race confition cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails cciss: fix flush cache transfer length cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler loop: fix loop block driver discard and encryption comment block: initialize request_queue's numa node during
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Wu Fengguang authored
Tests show that the original large intervals can easily make the dirty limit exceeded on 100 concurrent dd's. So adapt to as large as the next check point selected by the dirty throttling algorithm. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Adam Jackson authored
Some active adaptors (VGA usually) only have two lanes at 2.7GHz. That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc. Fixes Asus UX31 panel being black at startup due to no valid modes since dc22ee6f. v2: Rebased to current code, resulting in the fix applying to EDP panels as well. Also changed from spatio-temporal to just spatial dithering on pre-ironlake, to be conssitent (and less visual flicker) Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Eric Anholt <eric@anholt.net> Tested-by: Dirk Hohndel <hohndel@infradead.org> Signed-off-by: Keith Packard <keithp@keithp.com>
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Eugeni Dodonov authored
This adds a default setting for semaphores parameter, and enables semaphores by default on IVB. For now, as semaphores interaction with VTd causes random issues on SNB, we do not enable them by default. But they can still be enabled via the semaphores=1 kernel parameter. v2: enables semaphores on SNB when IO remapping is disabled, with base on Keith Packard patch. CC: Daniel Vetter <daniel.vetter@ffwll.ch> CC: Ben Widawsky <ben@bwidawsk.net> CC: Keith Packard <keithp@keithp.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Jesse Barnes authored
This fixes a race where we may try to finish a page flip and decrement the refcount even if our vblank_get failed and we ended up with a spurious flip pending interrupt. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
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Keith Packard authored
RC6 should always work on IVB, and should work on SNB whenever IO remapping is disabled. RC6 never works on Ironlake. Make the default value for the parameter follow these guidelines. Setting the value to either 0 or 1 will force the specified behavior. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567 Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu>
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Eugeni Dodonov authored
In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar is enabled. The new 'intel_iommu_enabled' variable signals when the iommu code is in operation. Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu> CC: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Chris Wilson authored
We were checking whether the supplied edid matched the connector it was read from. We do this in case a DDC read returns an EDID for another device on a multifunction or otherwise interesting card. However, we failed to include LVDS as a digital device and so rejecting an otherwise valid EDID. Fixes the detection of the secondary SDVO LVDS panel on the Libretto W105. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Adam Jackson <ajax@redhat.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39216Signed-off-by: Keith Packard <keithp@keithp.com>
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Eugeni Dodonov authored
This prevents an in-kernel division by zero which happens when we are asking for i915_chipset_val too quickly, or within a race condition between the power monitoring thread and userspace accesses via debugfs. The issue can be reproduced easily via the following command: while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done This is particularly dangerous because it can be triggered by a non-privileged user by just reading the debugfs entry. This issue was also found independently by Konstantin Belousov <kostikbel@gmail.com>, who proposed a similar patch. Reported-by: Konstantin Belousov <kostikbel@gmail.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Keith Packard <keithp@keithp.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Paulo Zanoni authored
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Paulo Zanoni authored
v2: add a CPT-specific macro, make code cleaner v3: fix commit message Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41272 Cc: stable@kernel.org Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com>
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Adam Jackson authored
https://bugzilla.redhat.com/show_bug.cgi?id=750006Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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Olof Johansson authored
Merge branch 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
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- 15 Dec, 2011 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibftLinus Torvalds authored
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: ibft: Fix finding IBFT ACPI table on UEFI
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