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2014-12-17ceph: fix setting empty extended attributeYan, Zheng1-2/+5
make sure 'value' is not null. otherwise __ceph_setxattr will remove the extended attribute. Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Sage Weil <[email protected]>
2014-12-17ceph: fix mksnap crashYan, Zheng1-1/+3
mksnap reply only contain 'target', does not contain 'dentry'. So it's wrong to use req->r_reply_info.head->is_dentry to detect traceless reply. Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Sage Weil <[email protected]>
2014-12-17ceph: do_sync is never initializedDan Carpenter1-1/+1
Probably this code was syncing a lot more often then intended because the do_sync variable wasn't set to zero. Cc: [email protected] # v3.11+ Fixes: c62988ec0910 ('ceph: avoid meaningless calling ceph_caps_revoking if sync_mode == WB_SYNC_ALL.') Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2014-12-17libceph: fixup includes in pagelist.hIlya Dryomov1-1/+3
pagelist.h needs to include linux/types.h and asm/byteorder.h and not rely on other headers pulling yet another set of headers. Signed-off-by: Ilya Dryomov <[email protected]>
2014-12-17ceph: support inline data featureYan, Zheng1-1/+2
Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: flush inline versionYan, Zheng3-4/+23
After converting inline data to normal data, client need to flush the new i_inline_version (CEPH_INLINE_NONE) to MDS. This commit makes cap messages (sent to MDS) contain inline_version and inline_data. Client always converts inline data to normal data before data write, so the inline data length part is always zero. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: convert inline data to normal data before data writeYan, Zheng3-3/+161
Before any data write, convert inline data to normal data and set i_inline_version to CEPH_INLINE_NONE. The OSD request that saves inline data to object contains 3 operations (CMPXATTR, WRITE and SETXATTR). It compares a xattr named 'inline_version' to prevent old data overwrites newer data. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: sync read inline dataYan, Zheng2-13/+116
we can't use getattr to fetch inline data while holding Fr cap, because it can cause deadlock. If we need to sync read inline data, drop cap refs first, then use getattr to fetch inline data. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: fetch inline data when getting Fcr cap refsYan, Zheng3-18/+63
we can't use getattr to fetch inline data after getting Fcr caps, because it can cause deadlock. The solution is try bringing inline data to page cache when not holding any cap, and hope the inline data page is still there after getting the Fcr caps. If the page is still there, pin it in page cache for later IO. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: use getattr request to fetch inline dataYan, Zheng4-10/+34
Add a new parameter 'locked_page' to ceph_do_getattr(). If inline data in getattr reply will be copied to the page. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: add inline data to pagecacheYan, Zheng6-1/+85
Request reply and cap message can contain inline data. add inline data to the page cache if there is Fc cap. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph: parse inline data in MClientReply and MClientCapsYan, Zheng3-11/+36
Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17libceph: specify position of extent operationYan, Zheng4-20/+19
allow specifying position of extent operation in multi-operations osd request. This is required for cephfs to convert inline data to normal data (compare xattr, then write object). Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]>
2014-12-17libceph: add CREATE osd operation supportYan, Zheng1-20/+22
Add CEPH_OSD_OP_CREATE support. Also change libceph to not treat CEPH_OSD_OP_DELETE as an extent op and add an assert to that end. Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]>
2014-12-17libceph: add SETXATTR/CMPXATTR osd operations supportYan, Zheng2-0/+57
Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]>
2014-12-17rbd: don't treat CEPH_OSD_OP_DELETE as extent opIlya Dryomov1-2/+6
CEPH_OSD_OP_DELETE is not an extent op, stop treating it as such. This sneaked in with discard patches - it's one of the three osd ops (the other two are CEPH_OSD_OP_TRUNCATE and CEPH_OSD_OP_ZERO) that discard is implemented with. Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Alex Elder <[email protected]>
2014-12-17ceph: remove unused stringification macrosIlya Dryomov1-3/+0
These were used to report git versions a long time ago. Signed-off-by: Ilya Dryomov <[email protected]>
2014-12-17libceph: require cephx message signature by defaultYan, Zheng2-0/+14
Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]>
2014-12-17ceph: introduce global empty snap contextYan, Zheng3-3/+35
Current snaphost code does not properly handle moving inode from one empty snap realm to another empty snap realm. After changing inode's snap realm, some dirty pages' snap context can be not equal to inode's i_head_snap. This can trigger BUG() in ceph_put_wrbuffer_cap_refs() The fix is introduce a global empty snap context for all empty snap realm. This avoids triggering the BUG() for filesystem with no snapshot. Fixes: http://tracker.ceph.com/issues/9928 Signed-off-by: Yan, Zheng <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]>
2014-12-17ceph: message versioning fixesJohn Spray1-2/+5
There were two places we were assigning version in host byte order instead of network byte order. Also in MSG_CLIENT_SESSION we weren't setting compat_version in the header to reflect continued compatability with older MDSs. Fixes: http://tracker.ceph.com/issues/9945 Signed-off-by: John Spray <[email protected]> Reviewed-by: Sage Weil <[email protected]>
2014-12-17libceph: update ceph_msg_header structureJohn Spray1-1/+2
2 bytes of what was reserved space is now used by userspace for the compat_version field. Signed-off-by: John Spray <[email protected]> Reviewed-by: Sage Weil <[email protected]>
2014-12-17libceph: message signature supportYan, Zheng8-4/+162
Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17libceph: store session key in cephx authorizerYan, Zheng2-7/+12
Session key is required when calculating message signature. Save the session key in authorizer, this avoid lookup ticket handler for each message Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17ceph, rbd: delete unnecessary checks before two function callsSF Markus Elfring4-14/+7
The functions ceph_put_snap_context() and iput() test whether their argument is NULL and then return immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> [[email protected]: squashed rbd.c hunk, changelog] Signed-off-by: Ilya Dryomov <[email protected]>
2014-12-17ceph: introduce a new inode flag indicating if cached dentries are orderedYan, Zheng3-19/+55
After creating/deleting/renaming file, offsets of sibling dentries may change. So we can not use cached dentries to satisfy readdir. But we can still use the cached dentries to conclude -ENOENT for lookup. This patch introduces a new inode flag indicating if child dentries are ordered. The flag is set at the same time marking a directory complete. After creating/deleting/renaming file, we clear the flag on directory inode. This prevents ceph_readdir() from using cached dentries to satisfy readdir syscall. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-17libceph: nuke ceph_kvfree()Ilya Dryomov5-14/+4
Use kvfree() from linux/mm.h instead, which is identical. Also fix the ceph_buffer comment: we will allocate with kmalloc() up to 32k - the value of PAGE_ALLOC_COSTLY_ORDER, but that really is just an implementation detail so don't mention it at all. Signed-off-by: Ilya Dryomov <[email protected]>
2014-12-17ceph: fix file lock interruptionYan, Zheng4-12/+67
When a lock operation is interrupted, current code sends a unlock request to MDS to undo the lock operation. This method does not work as expected because the unlock request can drop locks that have already been acquired. The fix is use the newly introduced CEPH_LOCK_FCNTL_INTR/CEPH_LOCK_FLOCK_INTR requests to interrupt blocked file lock request. These requests do not drop locks that have alread been acquired, they only interrupt blocked file lock request. Signed-off-by: Yan, Zheng <[email protected]>
2014-12-07Linux 3.18Linus Torvalds1-1/+1
2014-12-07Merge branch 'for-3.18-fixes' of ↵Linus Torvalds2-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Three libata fixes for v3.18. Nothing too interesting. PCI ID ID and quirk additions to ahci and an error handling path fix in sata_fsl" * 'for-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci: disable MSI on SAMSUNG 0xa800 SSD sata_fsl: fix error handling of irq_of_parse_and_map AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
2014-12-06Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-1/+1
Pull watchdog fix from Wim Van Sebroeck: "Fix the watchdog mask bit offset for Exynos7" * git://www.linux-watchdog.org/linux-watchdog: watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
2014-12-06Merge branch 'i2c/for-current' of ↵Linus Torvalds2-5/+14
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Here are two more driver bugfixes for I2C which would be good to have" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: cadence: Set the hardware time-out register to maximum value i2c: davinci: generate STP always when NACK is received
2014-12-05watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7Abhilash Kesavan1-1/+1
The watchdog mask bit offset listed for Exynos7 is incorrect. Fix this. Signed-off-by: Abhilash Kesavan <[email protected]> Acked-by: Naveen Krishna Chatradhi <[email protected] Reviewd-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2014-12-05Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Two final fixlets for 3.18: - Prevent microcode reload wreckage on 32bit - Unbreak cross compilation" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode: Limit the microcode reloading to 64-bit for now x86: Use $(OBJDUMP) instead of plain objdump
2014-12-05Merge tag 'sound-3.18' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixlet from Takashi Iwai: "Just one commit for adding a copule of HD-audio quirk entries" * tag 'sound-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Add headset Mic support for new Dell machine
2014-12-04Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2-13/+11
Pull drm intel fixes from Dave Airlie: "Two intel stable fixes, that should be it from me for this round" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: Unlock panel even when LVDS is disabled drm/i915: More cautious with pch fifo underruns
2014-12-04Merge tag 'pm+acpi-3.18-rc8' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI backlight fix from Rafael Wysocki: "This is a simple fix for an ACPI backlight regression introduced by a recent commit that overlooked a corner case which should have been taken into account" * tag 'pm+acpi-3.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / video: update condition to check if device is in _DOD list
2014-12-05Merge tag 'drm-intel-fixes-2014-12-04' of ↵Dave Airlie2-13/+11
git://anongit.freedesktop.org/drm-intel into drm-fixes Silence some pch fifo underrun reports and panel locking backtraces, both cc: stable. * tag 'drm-intel-fixes-2014-12-04' of git://anongit.freedesktop.org/drm-intel: drm/i915: Unlock panel even when LVDS is disabled drm/i915: More cautious with pch fifo underruns
2014-12-04Merge tag 'media/v3.18-rc8' of ↵Linus Torvalds6-32/+28
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "A core fix and some driver fixes: - regression fix in Remote Controller core affecting RC6 protocol handling - fix video buffer handling in cx23885 - race fix in solo6x10 - fix image selection in smiapp - fix reported payload size on s2255drv - two updates for MAINTAINERS file" * tag 'media/v3.18-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] rc-core: fix toggle handling in the rc6 decoder MAINTAINERS: Update mchehab's addresses [media] cx23885: use sg = sg_next(sg) instead of sg++ [media] s2255drv: fix payload size for JPG, MJPEG [media] Update MAINTAINERS for solo6x10 [media] solo6x10: fix a race in IRQ handler [media] smiapp: Only some selection targets are settable
2014-12-04uapi: fix to export linux/vm_sockets.hMasahiro Yamada1-1/+1
A typo "header=y" was introduced by commit 7071cf7fc435 ("uapi: add missing network related headers to kbuild"). Signed-off-by: Masahiro Yamada <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: David Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-12-04i2c: cadence: Set the hardware time-out register to maximum valueVishnu Motghare1-0/+11
Cadence I2C controller has bug wherein it generates invalid read transactions after timeout in master receiver mode. This driver does not use the HW timeout and this interrupt is disabled but the feature itself cannot be disabled. Hence, this patch writes the maximum value (0xFF) to this register. This is one of the workarounds to this bug and it will not avoid the issue completely but reduces the chances of error. Signed-off-by: Vishnu Motghare <[email protected]> Signed-off-by: Harini Katakam <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Cc: [email protected]
2014-12-04i2c: davinci: generate STP always when NACK is receivedGrygorii Strashko1-5/+3
According to I2C specification the NACK should be handled as follows: "When SDA remains HIGH during this ninth clock pulse, this is defined as the Not Acknowledge signal. The master can then generate either a STOP condition to abort the transfer, or a repeated START condition to start a new transfer." [I2C spec Rev. 6, 3.1.6: http://www.nxp.com/documents/user_manual/UM10204.pdf] Currently the Davinci i2c driver interrupts the transfer on receipt of a NACK but fails to send a STOP in some situations and so makes the bus stuck until next I2C IP reset (idle/enable). For example, the issue will happen during SMBus read transfer which consists from two i2c messages write command/address and read data: S Slave Address Wr A Command Code A Sr Slave Address Rd A D1..Dn A P <--- write -----------------------> <--- read ---------------------> The I2C client device will send NACK if it can't recognize "Command Code" and it's expected from I2C master to generate STP in this case. But now, Davinci i2C driver will just exit with -EREMOTEIO and STP will not be generated. Hence, fix it by generating Stop condition (STP) always when NACK is received. This patch fixes Davinci I2C in the same way it was done for OMAP I2C commit cda2109a26eb ("i2c: omap: query STP always when NACK is received"). Reviewed-by: Uwe Kleine-König <[email protected]> Reported-by: Hein Tibosch <[email protected]> Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Cc: [email protected]
2014-12-04ahci: disable MSI on SAMSUNG 0xa800 SSDTejun Heo1-0/+1
Just like 0x1600 which got blacklisted by 66a7cbc303f4 ("ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks"), 0xa800 chokes on NCQ commands if MSI is enabled. Disable MSI. Signed-off-by: Tejun Heo <[email protected]> Reported-by: Dominik Mierzejewski <[email protected]> Link: https://bugzilla.kernel.org/show_bug.cgi?id=89171 Cc: [email protected]
2014-12-03context_tracking: Restore previous state in schedule_userAndy Lutomirski1-2/+6
It appears that some SCHEDULE_USER (asm for schedule_user) callers in arch/x86/kernel/entry_64.S are called from RCU kernel context, and schedule_user will return in RCU user context. This causes RCU warnings and possible failures. This is intended to be a minimal fix suitable for 3.18. Reported-and-tested-by: Dave Jones <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Frédéric Weisbecker <[email protected]> Acked-by: Paul E. McKenney <[email protected]> Signed-off-by: Andy Lutomirski <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-12-03Merge branch 'i2c/for-current' of ↵Linus Torvalds2-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c bugfixes from Wolfram Sang: "A few driver bugfixes for 3.18" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: omap: fix i207 errata handling i2c: designware: prevent early stop on TX FIFO empty i2c: omap: fix NACK and Arbitration Lost irq handling
2014-12-03Merge tag 'pci-v3.18-fixes-4' of ↵Linus Torvalds1-8/+20
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fix from Bjorn Helgaas: "This fixes a Tegra20 regression that we introduced during the v3.18 merge window" * tag 'pci-v3.18-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: tegra: Use physical range for I/O mapping
2014-12-03Merge tag 'devicetree-for-linus' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux Pull devicetree bugfix from Grant Likely: "One more bug fix for v3.18. I debated whether or not to send you this merge request because we're at such a late rc. The bug isn't critical in that there is only one system known to be affected and the patch is easy to backport. The codepath is used by pretty much every DT based system, so there is risk a of regression (it /should/ be safe, but I've been bitten by stuff that should be safe before). I've had it in linux-next for a week and haven't received any complaints. I think it probably should just be merged right away rather than waiting for the merge window and backporting. It does fix a real bug and the code is theoretically safer after the change. I can't think of any situation where it would be dangerous to reserve the DT memory an extra time. Summary from tag: Single bugfix for boot failure seen in the wild. The memory reserve code tries to be clever about reserving the FDT, but it should just go ahead and reserve it unconditionally to avoid the problem of partial overlap described in the patch" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of/fdt: memblock_reserve /memreserve/ regions in the case of partial overlap
2014-12-03Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds1-6/+7
Pull block core regression fix from Jens Axboe: "Single fix for a regression introduced in this development cycle, where dm on top of dif/dix is broken. From Darrick Wong" * 'for-linus' of git://git.kernel.dk/linux-block: block: fix regression where bio_integrity_process uses wrong bio_vec iterator
2014-12-03Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds10-45/+88
Pull drm fixes from Dave Airlie: "Radeon and Nouveau fixes: So nouveau had a few regression introduced, Ben and Maarten finally tracked down the one that was causing problems on my MacBookPro, also nvidia gave some info on the an engine we were using incorrectly, so disable our use of it, and one regresion with pci hotplug affecting optimus users. Radeon has an oops fixs, sync fix, and one workaround to avoid broken functionality on 32-bit x86, this needs better root causing and a better fix, but the bandaid is a lot safer at this point" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6 drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86 drm/radeon: sync all BOs involved in a CS v2 nouveau: move the hotplug ignore to correct place. drm/nouveau/gf116: remove copy1 engine drm/nouveau: prevent stale fence->channel pointers, and protect with rcu drm/nouveau/fifo/g84-: ack non-stall interrupt before handling it
2014-12-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds7-67/+73
Pull networking fixes from David Miller: 1) Fill in ethtool link parameters for all link types in cxgb4, from Hariprasad Shenai. 2) Fix probe regressions in stmmac driver, from Huacai Chen. 3) Network namespace leaks on errirs in rtnetlink, from Nicolas Dichtel. 4) Remove erroneous BUG check which can actually trigger legitimately, in xen-netfront. From Seth Forshee. 5) Validate length of IFLA_BOND_ARP_IP_TARGET netlink attributes, from Thomas Grag. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: cxgb4: Fill in supported link mode for SFP modules xen-netfront: Remove BUGs on paged skb data which crosses a page boundary sh_eth: Fix sleeping function called from invalid context stmmac: platform: Move plat_dat checking earlier sh_eth: Fix skb alloc size and alignment adjust rule. rtnetlink: release net refcnt on error in do_setlink() bond: Check length of IFLA_BOND_ARP_IP_TARGET attributes
2014-12-03Merge branch 'for-linus' of ↵Linus Torvalds5-34/+36
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull keyring/nfs fixes from James Morris: "From David Howells: The first one fixes the handling of maximum buffer size for key descriptions, fixing the size at 4095 + NUL char rather than whatever PAGE_SIZE happens to be and permits you to read back the full description without it getting clipped because some extra information got prepended. The second and third fix a bug in NFS idmapper handling whereby a key representing a mapping between an id and a name expires and causing EKEYEXPIRED to be seen internally in NFS (which prevents the mapping from happening) rather than re-looking up the mapping" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: KEYS: request_key() should reget expired keys rather than give EKEYEXPIRED KEYS: Simplify KEYRING_SEARCH_{NO,DO}_STATE_CHECK flags KEYS: Fix the size of the key description passed to/from userspace