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2013-02-26nfsd: handle vfs_getattr errors in acl protocolJ. Bruce Fields4-9/+24
We're currently ignoring errors from vfs_getattr. The correct thing to do is to do the stat in the main service procedure not in the response encoding. Reported-by: Al Viro <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> Signed-off-by: Al Viro <[email protected]>
2013-02-26switch vfs_getattr() to struct pathAl Viro14-35/+40
Signed-off-by: Al Viro <[email protected]>
2013-02-26default SET_PERSONALITY() in linux/elf.hAl Viro17-54/+5
Signed-off-by: Al Viro <[email protected]>
2013-02-26ceph: prepopulate inodes only when request is abortedSage Weil1-2/+38
If r_aborted is true, we do not hold the dir i_mutex, and cannot touch the dcache. However, we still need to update the inodes with the state returned by the MDS. Reported-by: Al Viro <[email protected]> Signed-off-by: Sage Weil <[email protected]> Signed-off-by: Al Viro <[email protected]>
2013-02-26d_hash_and_lookup(): export, switch open-coded instancesAl Viro4-24/+18
* calling conventions change - ERR_PTR() is returned on ->d_hash() errors; NULL is just for dcache miss now. * exported, open-coded instances in ncpfs and cifs converted. Signed-off-by: Al Viro <[email protected]>
2013-02-269p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()Al Viro3-35/+33
Signed-off-by: Al Viro <[email protected]>
2013-02-269p: split dropping the acls from v9fs_set_create_acl()Al Viro3-21/+28
Signed-off-by: Al Viro <[email protected]>
2013-02-269p: switch v9fs_acl_chmod() from dentry to inode+fidAl Viro3-16/+13
caller has both, might as well pass them explicitly. Signed-off-by: Al Viro <[email protected]>
2013-02-269p: switch v9fs_set_acl() from dentry to fidAl Viro1-5/+12
Signed-off-by: Al Viro <[email protected]>
2013-02-269p: lift the call of set_cached_acl() into the callers of v9fs_set_acl()Al Viro1-4/+3
Signed-off-by: Al Viro <[email protected]>
2013-02-269p: add fid-based variant of v9fs_xattr_set()Al Viro2-15/+20
... making v9fs_xattr_set() a wrapper for it. Signed-off-by: Al Viro <[email protected]>
2013-02-26tegra: don't wank with d_find_alias()Al Viro1-9/+3
Signed-off-by: Al Viro <[email protected]>
2013-02-26lirc: get rid of bogus checksAl Viro1-10/+1
file argument is a struct file being passed to ->open() or already opened; none of the checks in lirc_get_pdata() can fail. Signed-off-by: Al Viro <[email protected]>
2013-02-26hugetlb_file_setup(): use d_alloc_pseudo()Al Viro1-4/+15
Signed-off-by: Al Viro <[email protected]>
2013-02-26shmem_setup_file(): use d_alloc_pseudo() instead of d_alloc()Al Viro1-4/+15
Note that provided ->d_dname() reproduces what we used to get for those guys in e.g. /proc/self/maps; it might be a good idea to change that to something less ugly, but for now let's keep the existing user-visible behaviour Signed-off-by: Al Viro <[email protected]>
2013-02-25xtensa: add accept4 syscallChris Zankel1-1/+4
Signed-off-by: Chris Zankel <[email protected]>
2013-02-26openrisc: add missing header inclusionStefan Kristiansson1-0/+1
Prevents build issue with updated toolchain Reported-by: Jack Thomasson <[email protected]> Tested-by: Christian Svensson <[email protected]> Signed-off-by: Stefan Kristiansson <[email protected]> Signed-off-by: Jonas Bonn <[email protected]>
2013-02-25Merge tag 'pm+acpi-fixes-3.9-rc1' of ↵Linus Torvalds8-50/+107
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: - Fixes for blackfin and microblaze build problems introduced by the removal of global pm_idle. From Lars-Peter Clausen. - OPP core build fix from Shawn Guo. - Error condition check fix for the new imx6q-cpufreq driver from Wei Yongjun. - Fix for an AER driver crash related to the lack of APEI initialization for acpi=off. From Rafael J Wysocki. - Fix for a USB breakage on Thinkpad T430 related to ACPI power resources and PCI wakeup from Rafael J. Wysocki. * tag 'pm+acpi-fixes-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PM: Take unusual configurations of power resources into account imx6q-cpufreq: fix return value check in imx6q_cpufreq_probe() PM / OPP: fix condition for empty of_init_opp_table() ACPI / APEI: Fix crash in apei_hest_parse() for acpi=off microblaze idle: Fix compile error blackfin idle: Fix compile error
2013-02-25Merge tag 'pci-v3.9-changes' of ↵Linus Torvalds46-791/+679
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug - Major overhaul of ACPI host bridge add/start (Rafael Wysocki, Yinghai Lu) - Major overhaul of PCI/ACPI binding (Rafael Wysocki, Yinghai Lu) - Split out ACPI host bridge and ACPI PCI device hotplug (Yinghai Lu) - Stop caching _PRT and make independent of bus numbers (Yinghai Lu) PCI device hotplug - Clean up cpqphp dead code (Sasha Levin) - Disable ARI unless device and upstream bridge support it (Yijing Wang) - Initialize all hot-added devices (not functions 0-7) (Yijing Wang) Power management - Don't touch ASPM if disabled (Joe Lawrence) - Fix ASPM link state management (Myron Stowe) Miscellaneous - Fix PCI_EXP_FLAGS accessor (Alex Williamson) - Disable Bus Master in pci_device_shutdown (Konstantin Khlebnikov) - Document hotplug resource and MPS parameters (Yijing Wang) - Add accessor for PCIe capabilities (Myron Stowe) - Drop pciehp suspend/resume messages (Paul Bolle) - Make pci_slot built-in only (not a module) (Jiang Liu) - Remove unused PCI/ACPI bind ops (Jiang Liu) - Removed used pci_root_bus (Bjorn Helgaas)" * tag 'pci-v3.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (51 commits) PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers PCI: Fix PCI Express Capability accessors for PCI_EXP_FLAGS ACPI / PCI: Make pci_slot built-in only, not a module PCI/PM: Clear state_saved during suspend PCI: Use atomic_inc_return() rather than atomic_add_return() PCI: Catch attempts to disable already-disabled devices PCI: Disable Bus Master unconditionally in pci_device_shutdown() PCI: acpiphp: Remove dead code for PCI host bridge hotplug PCI: acpiphp: Create companion ACPI devices before creating PCI devices PCI: Remove unused "rc" in virtfn_add_bus() PCI: pciehp: Drop suspend/resume ENTRY messages PCI/ASPM: Don't touch ASPM if forcibly disabled PCI/ASPM: Deallocate upstream link state even if device is not PCIe PCI: Document MPS parameters pci=pcie_bus_safe, pci=pcie_bus_perf, etc PCI: Document hpiosize= and hpmemsize= resource reservation parameters PCI: Use PCI Express Capability accessor PCI: Introduce accessor to retrieve PCIe Capabilities Register PCI: Put pci_dev in device tree as early as possible PCI: Skip attaching driver in device_add() PCI: acpiphp: Keep driver loaded even if no slots found ...
2013-02-25Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds398-11509/+23479
Pull drm merge from Dave Airlie: "Highlights: - TI LCD controller KMS driver - TI OMAP KMS driver merged from staging - drop gma500 stub driver - the fbcon locking fixes - the vgacon dirty like zebra fix. - open firmware videomode and hdmi common code helpers - major locking rework for kms object handling - pageflip/cursor won't block on polling anymore! - fbcon helper and prime helper cleanups - i915: all over the map, haswell power well enhancements, valleyview macro horrors cleaned up, killing lots of legacy GTT code, - radeon: CS ioctl unification, deprecated UMS support, gpu reset rework, VM fixes - nouveau: reworked thermal code, external dp/tmds encoder support (anx9805), fences sleep instead of polling, - exynos: all over the driver fixes." Lovely conflict in radeon/evergreen_cs.c between commit de0babd60d8d ("drm/radeon: enforce use of radeon_get_ib_value when reading user cmd") and the new changes that modified that evergreen_dma_cs_parse() function. * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (508 commits) drm/tilcdc: only build on arm drm/i915: Revert hdmi HDP pin checks drm/tegra: Add list of framebuffers to debugfs drm/tegra: Fix color expansion drm/tegra: Split DC_CMD_STATE_CONTROL register write drm/tegra: Implement page-flipping support drm/tegra: Implement VBLANK support drm/tegra: Implement .mode_set_base() drm/tegra: Add plane support drm/tegra: Remove bogus tegra_framebuffer structure drm: Add consistency check for page-flipping drm/radeon: Use generic HDMI infoframe helpers drm/tegra: Use generic HDMI infoframe helpers drm: Add EDID helper documentation drm: Add HDMI infoframe helpers video: Add generic HDMI infoframe helpers drm: Add some missing forward declarations drm: Move mode tables to drm_edid.c drm: Remove duplicate drm_mode_cea_vic() gma500: Fix n, m1 and m2 clock limits for sdvo and lvds ...
2013-02-25Merge branch 'for-linus' of ↵Linus Torvalds1-12/+17
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fix from Al Viro: "Fix for 3.8 breakage introduced by "vfs: Allow unprivileged manipulation of the mount namespace" - accessing mnt->mnt_ns is done there without needed locking *and* without any real need. Definite -stable fodder, fortunately not going too far back. This is *not* all - there will be much bigger vfs pull request tomorrow." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: get rid of unprotected dereferencing of mnt->mnt_ns
2013-02-25x86, efi: Mark disable_runtime as __initdataMatt Fleming1-1/+1
disable_runtime is only referenced from __init functions, so mark it as __initdata. Reported-by: Yinghai Lu <[email protected]> Reviewed-by: Satoru Takeuchi <[email protected]> Signed-off-by: Matt Fleming <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2013-02-25Merge branch 'for-linus' of ↵Linus Torvalds101-656/+1058
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull user namespace and namespace infrastructure changes from Eric W Biederman: "This set of changes starts with a few small enhnacements to the user namespace. reboot support, allowing more arbitrary mappings, and support for mounting devpts, ramfs, tmpfs, and mqueuefs as just the user namespace root. I do my best to document that if you care about limiting your unprivileged users that when you have the user namespace support enabled you will need to enable memory control groups. There is a minor bug fix to prevent overflowing the stack if someone creates way too many user namespaces. The bulk of the changes are a continuation of the kuid/kgid push down work through the filesystems. These changes make using uids and gids typesafe which ensures that these filesystems are safe to use when multiple user namespaces are in use. The filesystems converted for 3.9 are ceph, 9p, afs, ocfs2, gfs2, ncpfs, nfs, nfsd, and cifs. The changes for these filesystems were a little more involved so I split the changes into smaller hopefully obviously correct changes. XFS is the only filesystem that remains. I was hoping I could get that in this release so that user namespace support would be enabled with an allyesconfig or an allmodconfig but it looks like the xfs changes need another couple of days before it they are ready." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (93 commits) cifs: Enable building with user namespaces enabled. cifs: Convert struct cifs_ses to use a kuid_t and a kgid_t cifs: Convert struct cifs_sb_info to use kuids and kgids cifs: Modify struct smb_vol to use kuids and kgids cifs: Convert struct cifsFileInfo to use a kuid cifs: Convert struct cifs_fattr to use kuid and kgids cifs: Convert struct tcon_link to use a kuid. cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t cifs: Convert from a kuid before printing current_fsuid cifs: Use kuids and kgids SID to uid/gid mapping cifs: Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID to keyring_alloc cifs: Use BUILD_BUG_ON to validate uids and gids are the same size cifs: Override unmappable incoming uids and gids nfsd: Enable building with user namespaces enabled. nfsd: Properly compare and initialize kuids and kgids nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids nfsd: Modify nfsd4_cb_sec to use kuids and kgids nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion nfsd: Convert nfsxdr to use kuids and kgids nfsd: Convert nfs3xdr to use kuids and kgids ...
2013-02-25Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds3-8/+3
Pull KVM ARM compile fixes from Gleb Natapov: "Fix ARM KVM compilation breakage due to changes from kvm.git" * git://git.kernel.org/pub/scm/virt/kvm/kvm: ARM: KVM: fix compilation after removal of user_alloc from struct kvm_memory_slot ARM: KVM: Rename KVM_MEMORY_SLOTS -> KVM_USER_MEM_SLOTS ARM: KVM: fix kvm_arch_{prepare,commit}_memory_region
2013-02-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds51-765/+2146
Pull crypto update from Herbert Xu: "Here is the crypto update for 3.9: - Added accelerated implementation of crc32 using pclmulqdq. - Added test vector for fcrypt. - Added support for OMAP4/AM33XX cipher and hash. - Fixed loose crypto_user input checks. - Misc fixes" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (43 commits) crypto: user - ensure user supplied strings are nul-terminated crypto: user - fix empty string test in report API crypto: user - fix info leaks in report API crypto: caam - Added property fsl,sec-era in SEC4.0 device tree binding. crypto: use ERR_CAST crypto: atmel-aes - adjust duplicate test crypto: crc32-pclmul - Kill warning on x86-32 crypto: x86/twofish - assembler clean-ups: use ENTRY/ENDPROC, localize jump labels crypto: x86/sha1 - assembler clean-ups: use ENTRY/ENDPROC crypto: x86/serpent - use ENTRY/ENDPROC for assember functions and localize jump targets crypto: x86/salsa20 - assembler cleanup, use ENTRY/ENDPROC for assember functions and rename ECRYPT_* to salsa20_* crypto: x86/ghash - assembler clean-up: use ENDPROC at end of assember functions crypto: x86/crc32c - assembler clean-up: use ENTRY/ENDPROC crypto: cast6-avx: use ENTRY()/ENDPROC() for assembler functions crypto: cast5-avx: use ENTRY()/ENDPROC() for assembler functions and localize jump targets crypto: camellia-x86_64/aes-ni: use ENTRY()/ENDPROC() for assembler functions and localize jump targets crypto: blowfish-x86_64: use ENTRY()/ENDPROC() for assembler functions and localize jump targets crypto: aesni-intel - add ENDPROC statements for assembler functions crypto: x86/aes - assembler clean-ups: use ENTRY/ENDPROC, localize jump targets crypto: testmgr - add test vector for fcrypt ...
2013-02-26drm/tilcdc: only build on armStephen Rothwell1-1/+1
[airlied: hack for now until we fix cma helpers on other OF platforms] Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2013-02-25Merge tag 'please-pull-vm_unwrapped' of ↵Linus Torvalds2-36/+21
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull ia64 update from Tony Luck: "ia64 vm patch series that was cooking in -mm tree" * tag 'please-pull-vm_unwrapped' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: mm: use vm_unmapped_area() in hugetlbfs on ia64 architecture mm: use vm_unmapped_area() on ia64 architecture
2013-02-25Merge branch 'for-linus' of ↵Linus Torvalds3-6/+18
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem fixes from James Morris: "From Mimi: Both of these patches are bug fixes for patches, which were upstreamed in this open window. The first patch addresses a merge issue. The second patch addresses a CONFIG_BLOCK dependency." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: block: fix part_pack_uuid() build error ima: "remove enforce checking duplication" merge fix
2013-02-25Merge tag 'ktest-v3.9' of ↵Linus Torvalds3-18/+253
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest update from Steven Rostedt: "Added ability to have all builds test warnings. Fixed failing reboot when the reboot produces a non fatal error. Config reading fixes and other cleanups" * tag 'ktest-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Remove indexes from warnings check ktest: Ignore warnings during reboot ktest: Search for linux banner for successful reboot ktest: Add make_warnings_file and process full warnings ktest: Allow a test option to use its default option ktest: Strip off '\n' when reading which files were modified ktest: Do not require CONSOLE for build or install bisects
2013-02-25Merge tag 'modules-next-for-linus' of ↵Linus Torvalds43-201/+235
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "The sweeping change is to make add_taint() explicitly indicate whether to disable lockdep, but it's a mechanical change." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Add option to not sign modules during modules_install MODSIGN: Add -s <signature> option to sign-file MODSIGN: Specify the hash algorithm on sign-file command line MODSIGN: Simplify Makefile with a Kconfig helper module: clean up load_module a little more. modpost: Ignore ARC specific non-alloc sections module: constify within_module_* taint: add explicit flag to show whether lock dep is still OK. module: printk message when module signature fail taints kernel.
2013-02-25x86, doc: Fix incorrect comment about 64-bit code segment descriptorsKonrad Rzeszutek Wilk1-2/+2
The AMD64 Architecture Programmer's Manual Volume 2, on page 89 mentions: "If the processor is running in 64-bit mode (L=1), the only valid setting of the D bit is 0." This matches with what the code does. Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: H. Peter Anvin <[email protected]>
2013-02-25doc, kernel-parameters: Document 'console=hvc<n>'Konrad Rzeszutek Wilk1-0/+2
Both the PowerPC hypervisor and Xen hypervisor can utilize the hvc driver. Cc: Greg KH <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Cc: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2013-02-25doc, xen: Mention 'earlyprintk=xen' in the documentation.Konrad Rzeszutek Wilk1-0/+3
The earlyprintk for Xen PV guests utilizes a simple hypercall (console_io) to provide output to Xen emergency console. Note that the Xen hypervisor should be booted with 'loglevel=all' to output said information. Reported-by: H. Peter Anvin <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Cc: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2013-02-25libceph: use a do..while loop in con_work()Alex Elder1-41/+42
This just converts a manually-implemented loop into a do..while loop in con_work(). It also moves handling of EAGAIN inside the blocks where it's already been determined an error code was returned. Also update a few dout() calls near the affected code for consistency. Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25libceph: use a flag to indicate a fault has occurredAlex Elder1-12/+12
This just rearranges the logic in con_work() a little bit so that a flag is used to indicate a fault has occurred. This allows both the fault and non-fault case to be handled the same way and avoids a couple of nearly consecutive gotos. Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25libceph: separate non-locked fault handlingAlex Elder1-19/+23
An error occurring on a ceph connection is treated as a fault, causing the connection to be reset. The initial part of this fault handling has to be done while holding the connection mutex, but it must then be dropped for the last part. Separate the part of this fault handling that executes without the lock into its own function, con_fault_finish(). Move the call to this new function, as well as call that drops the connection mutex, into ceph_fault(). Rename that function con_fault() to reflect that it's only handling the connection part of the fault handling. The motivation for this was a warning from sparse about the locking being done here. Rearranging things this way keeps all the mutex manipulation within ceph_fault(), and this stops sparse from complaining. This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25libceph: encapsulate connection backoffAlex Elder1-13/+24
Collect the code that tests for and implements a backoff delay for a ceph connection into a new function, ceph_backoff(). Make the debug output messages in that part of the code report things consistently by reporting a message in the socket closed case, and by making the one for PREOPEN state report the connection pointer like the rest. Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25libceph: eliminate sparse warningsAlex Elder3-5/+6
Eliminate most of the problems in the libceph code that cause sparse to issue warnings. - Convert functions that are never referenced externally to have static scope. - Pass NULL rather than 0 for a pointer argument in one spot in ceph_monc_delete_snapid() This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25ceph: eliminate sparse warnings in fs codeAlex Elder1-2/+2
Fix the causes for sparse warnings reported in the ceph file system code. Here there are only two (and they're sort of silly but they're easy to fix). This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25rbd: eliminate sparse warningsAlex Elder1-5/+7
Fengguang Wu reminded me that there were outstanding sparse reports in the ceph and rbd code. This patch fixes these problems in rbd that lead to those reports: - Convert functions that are never referenced externally to have static scope. - Add a lockdep annotation to rbd_request_fn(), because it releases a lock before acquiring it again. This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <[email protected]> Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25libceph: define connection flag helpersAlex Elder1-29/+78
Define and use functions that encapsulate operations performed on a connection's flags. This resolves: http://tracker.ceph.com/issues/4234 Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25rbd: normalize dout() callsAlex Elder1-5/+61
Add dout() calls to facilitate tracing of image and object requests. Change a few existing calls so they use __func__ rather than the hard-coded function name. Have calls always add ":" after the name of the function, and prefix pointer values with a consistent tag indicating what it represents. (Note that there remain some older dout() calls that are left untouched by this patch.) Issue a warning if rbd_osd_write_callback() ever gets a short write. This resolves: http://tracker.ceph.com/issues/4235 Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25rbd: barriers are hardAlex Elder1-3/+12
Let's go shopping! I'm afraid this may not have gotten it right: 07741308 rbd: add barriers near done flag operations The smp_wmb() should have been done *before* setting the done flag, to ensure all other data was valid before marking the object request done. Switch to use atomic_inc_return() here to set the done flag, which allows us to verify we don't mark something done more than once. Doing this also implies general barriers before and after the call. And although a read memory barrier might have been sufficient before reading the done flag, convert this to a full memory barrier just to put this issue to bed. This resolves: http://tracker.ceph.com/issues/4238 Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25rbd: ignore zero-length requestsAlex Elder1-3/+16
The old request code simply ignored zero-length requests. We should still operate that same way to avoid any changes in behavior. We can implement handling for special zero-length requests separately (see http://tracker.ceph.com/issues/4236). Add some assertions based on this new constraint. This resolves: http://tracker.ceph.com/issues/4237 Signed-off-by: Alex Elder <[email protected]> Reviewed-by: Josh Durgin <[email protected]>
2013-02-25Merge branch 'kbuild/rc-fixes' into kbuild/kconfigMichal Marek10888-302223/+522743
There is one kconfig fix in the rc-fixes branch that I forgot to submit for 3.8, so let's add it to the kconfig branch for 3.9-rc1.
2013-02-25usbnet: smsc95xx: rename FEATURE_AUTOSUSPENDMing Lei1-7/+7
The name of FEATURE_AUTOSUSPEND is very misleading and the actual meaning is remote wakeup, but a device incapable of remote wakeup still can support USB autosuspend under some situations, so rename it to avoid misunderstanding. Cc: Steve Glendinning <[email protected]> Signed-off-by: Ming Lei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-25usbnet: smsc95xx: fix broken runtime suspendMing Lei1-10/+2
Commit b2d4b150(smsc95xx: enable dynamic autosuspend) implements autosuspend, but breaks current runtime suspend, such as: when the interface becomes down, the usb device can't be put into runtime suspend any more. This patch fixes the broken runtime suspend. Cc: Steve Glendinning <[email protected]> Signed-off-by: Ming Lei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-25usbnet: smsc95xx: fix suspend failureMing Lei1-3/+9
The three below functions: smsc95xx_enter_suspend0() smsc95xx_enter_suspend1() smsc95xx_enter_suspend2() return > 0 in case of success, so they will cause smsc95xx_suspend() to return > 0 and cause suspend failure. The bug is introduced in commit 3b9f7d(smsc95xx: fix error handling in suspend failure case). Cc: <[email protected]> [3.8] Cc: Steve Glendinning <[email protected]> Signed-off-by: Ming Lei <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-25bgmac: fix indexing of 2nd level loopsRafał Miłecki1-7/+11
We were using the same variable for iterating two nested loops. Reported-by: Tijs Van Buggenhout <[email protected]> Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-25b43: Fix lockdep splat on module unloadLarry Finger1-1/+2
On unload, b43 produces a lockdep warning that can be summarized in the following way: ====================================================== [ INFO: possible circular locking dependency detected ] 3.8.0-wl+ #117 Not tainted ------------------------------------------------------- modprobe/5557 is trying to acquire lock: ((&wl->firmware_load)){+.+.+.}, at: [<ffffffff81062160>] flush_work+0x0/0x2a0 but task is already holding lock: (rtnl_mutex){+.+.+.}, at: [<ffffffff813bd7d2>] rtnl_lock+0x12/0x20 which lock already depends on the new lock. [ INFO: possible circular locking dependency detected ] ====================================================== The full output is available at http://lkml.indiana.edu/hypermail/linux/kernel/1302.3/00060.html. To summarize, commit 6b6fa58 added a 'cancel_work_sync(&wl->firmware_load)' call in the wrong place. The fix is to move the cancel_work_sync() call to b43_bcma_remove() and b43_ssb_remove(). Thanks to Johannes Berg and Michael Buesch for help in diagnosing the log output. Signed-off-by: Larry Finger <[email protected]> Cc: Stable <[email protected]> [V3.5+] Signed-off-by: David S. Miller <[email protected]>
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