- Aug 01, 2012
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull powerpc updates from Benjamin Herrenschmidt: "Kumar sent me a handful of Freescale related fixes and I added another regression fix to the pile. PS. I -will- eventually learn about that signed tag business :-)" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/kvm/book3s_32: Fix MTMSR_EERI macro powerpc/85xx: p1022ds: fix DIU/LBC switching with NAND enabled powerpc/85xx: p1022ds: disable the NAND flash node if video is enabled powerpc/85xx: Fix sram_offset parameter type powerpc/85xx: P3041DS - change espi input-clock from 40MHz to 35MHz powerpc/85xx: Fix pci base address error for p2020rdb-pc in dts
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Martin Schwidefsky: "This it the second batch of s390 patches for the 3.6 merge window. Included is enablement for two common code changes, killable page faults and sorted exception tables. And the regular set of cleanup and bug fix patches." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: make use of user_mode() macro where possible s390/mm: rename user_mode variable to addressing_mode s390/mm: fix fault handling for page table walk case s390/mm: make page faults killable s390: update defconfig s390/mm: downgrade page table after fork of a 31 bit process s390/ipl: Use diagnose 8 command separation s390/linker script: use RO_DATA_SECTION s390/exceptions: sort exception table at build time s390/debug: remove module_exit function / move EXPORT_SYMBOLs
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
Pull nfsd changes from J. Bruce Fields: "This has been an unusually quiet cycle--mostly bugfixes and cleanup. The one large piece is Stanislav's work to containerize the server's grace period--but that in itself is just one more step in a not-yet-complete project to allow fully containerized nfs service. There are a number of outstanding delegation, container, v4 state, and gss patches that aren't quite ready yet; 3.7 may be wilder." * 'nfsd-next' of git://linux-nfs.org/~bfields/linux: (35 commits) NFSd: make boot_time variable per network namespace NFSd: make grace end flag per network namespace Lockd: move grace period management from lockd() to per-net functions LockD: pass actual network namespace to grace period management functions LockD: manage grace list per network namespace SUNRPC: service request network namespace helper introduced NFSd: make nfsd4_manager allocated per network namespace context. LockD: make lockd manager allocated per network namespace LockD: manage grace period per network namespace Lockd: add more debug to host shutdown functions Lockd: host complaining function introduced LockD: manage used host count per networks namespace LockD: manage garbage collection timeout per networks namespace LockD: make garbage collector network namespace aware. LockD: mark host per network namespace on garbage collect nfsd4: fix missing fault_inject.h include locks: move lease-specific code out of locks_delete_lock locks: prevent side-effects of locks_release_private before file_lock is initialized NFSd: set nfsd_serv to NULL after service destruction NFSd: introduce nfsd_destroy() helper ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds authored
Pull Ceph changes from Sage Weil: "Lots of stuff this time around: - lots of cleanup and refactoring in the libceph messenger code, and many hard to hit races and bugs closed as a result. - lots of cleanup and refactoring in the rbd code from Alex Elder, mostly in preparation for the layering functionality that will be coming in 3.7. - some misc rbd cleanups from Josh Durgin that are finally going upstream - support for CRUSH tunables (used by newer clusters to improve the data placement) - some cleanup in our use of d_parent that Al brought up a while back - a random collection of fixes across the tree There is another patch coming that fixes up our ->atomic_open() behavior, but I'm going to hammer on it a bit more before sending it." Fix up conflicts due to commits that were already committed earlier in drivers/block/rbd.c, net/ceph/{messenger.c, osd_client.c} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (132 commits) rbd: create rbd_refresh_helper() rbd: return obj version in __rbd_refresh_header() rbd: fixes in rbd_header_from_disk() rbd: always pass ops array to rbd_req_sync_op() rbd: pass null version pointer in add_snap() rbd: make rbd_create_rw_ops() return a pointer rbd: have __rbd_add_snap_dev() return a pointer libceph: recheck con state after allocating incoming message libceph: change ceph_con_in_msg_alloc convention to be less weird libceph: avoid dropping con mutex before fault libceph: verify state after retaking con lock after dispatch libceph: revoke mon_client messages on session restart libceph: fix handling of immediate socket connect failure ceph: update MAINTAINERS file libceph: be less chatty about stray replies libceph: clear all flags on con_close libceph: clean up con flags libceph: replace connection state bits with states libceph: drop unnecessary CLOSED check in socket state change callback libceph: close socket directly from ceph_con_close() ...
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- Jul 31, 2012
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Alexander Graf authored
Commit b38c77d8 moved the MTMSR_EERI macro from the KVM code to generic ppc_asm.h code. However, while adding it in the headers for the ppc32 case, it missed out to remove the former definition in the KVM code. This patch fixes compilation on server type PPC32 targets with CONFIG_KVM enabled. Signed-off-by:
Alexander Graf <agraf@suse.de> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Kumar says: "A few patches that missed the initial 3.6 window. These are bug fixes at this point."
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git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds authored
Pull writeback updates from Wu Fengguang: "Use time based periods to age the writeback proportions, which can adapt equally well to fast/slow devices." Fix up trivial conflict in comment in fs/sync.c * tag 'writeback-proportions' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: Fix some comment errors block: Convert BDI proportion calculations to flexible proportions lib: Fix possible deadlock in flexible proportion code lib: Proportions with flexible period
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git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds authored
Pull NFS client updates from Trond Myklebust: "Features include: - More preparatory patches for modularising NFSv2/v3/v4. Split out the various NFSv2/v3/v4-specific code into separate files - More preparation for the NFSv4 migration code - Ensure that OPEN(O_CREATE) observes the pNFS mds threshold parameters - pNFS fast failover when the data servers are down - Various cleanups and debugging patches" * tag 'nfs-for-3.6-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (67 commits) nfs: fix fl_type tests in NFSv4 code NFS: fix pnfs regression with directio writes NFS: fix pnfs regression with directio reads sunrpc: clnt: Add missing braces nfs: fix stub return type warnings NFS: exit_nfs_v4() shouldn't be an __exit function SUNRPC: Add a missing spin_unlock to gss_mech_list_pseudoflavors NFS: Split out NFS v4 client functions NFS: Split out the NFS v4 filesystem types NFS: Create a single nfs_clone_super() function NFS: Split out NFS v4 server creating code NFS: Initialize the NFS v4 client from init_nfs_v4() NFS: Move the v4 getroot code to nfs4getroot.c NFS: Split out NFS v4 file operations NFS: Initialize v4 sysctls from nfs_init_v4() NFS: Create an init_nfs_v4() function NFS: Split out NFS v4 inode operations NFS: Split out NFS v3 inode operations NFS: Split out NFS v2 inode operations NFS: Clean up nfs4_proc_setclientid() and friends ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6Linus Torvalds authored
Pull MFD fix from Samuel Ortiz: "This one fixes an s5m8767 regulator build breakage due to a merge conflict caused by the MFD s5m API changes." * tag 'mfd-for-linus-3.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: regulator: Fix an s5m8767 build failure
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: "This is the first part of the media patches for v3.6. This patch series contain: - new DVB frontend: rtl2832 - new video drivers: adv7393 - some unused files got removed - a selection API cleanup between V4L2 and V4L2 subdev API's - a major redesign at v4l-ioctl2, in order to clean it up - several driver fixes and improvements." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (174 commits) v4l: Export v4l2-common.h in include/linux/Kbuild media: Revert "[media] Terratec Cinergy S2 USB HD Rev.2" [media] media: Use pr_info not homegrown pr_reg macro [media] Terratec Cinergy S2 USB HD Rev.2 [media] v4l: Correct conflicting V4L2 subdev selection API documentation [media] Feature removal: V4L2 selections API target and flag definitions [media] v4l: Unify selection flags documentation [media] v4l: Unify selection flags [media] v4l: Common documentation for selection targets [media] v4l: Unify selection targets across V4L2 and V4L2 subdev interfaces [media] v4l: Remove "_ACTUAL" from subdev selection API target definition names [media] V4L: Remove "_ACTIVE" from the selection target name definitions [media] media: dvb-usb: print mac address via native %pM [media] s5p-tv: Use module_i2c_driver in sii9234_drv.c file [media] media: gpio-ir-recv: add allowed_protos for platform data [media] s5p-jpeg: Use module_platform_driver in jpeg-core.c file [media] saa7134: fix spelling of detach in label [media] cx88-blackbird: replace ioctl by unlocked_ioctl [media] cx88: don't use current_norm [media] cx88: fix a number of v4l2-compliance violations ...
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Alex Elder authored
Create a simple helper that handles the common case of calling __rbd_refresh_header() while holding the ctl_mutex. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
Add a new parameter to __rbd_refresh_header() through which the version of the header object is passed back to the caller. In most cases this isn't needed. The main motivation is to normalize (almost) all calls to __rbd_refresh_header() so they are all wrapped immediately by mutex_lock()/mutex_unlock(). Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
This fixes a few issues in rbd_header_from_disk(): - There is a check intended to catch overflow, but it's wrong in two ways. - First, the type we don't want to overflow is size_t, not unsigned int, and there is now a SIZE_MAX we can use for use with that type. - Second, we're allocating the snapshot ids and snapshot image sizes separately (each has type u64; on disk they grouped together as a rbd_image_header_ondisk structure). So we can use the size of u64 in this overflow check. - If there are no snapshots, then there should be no snapshot names. Enforce this, and issue a warning if we encounter a header with no snapshots but a non-zero snap_names_len. - When saving the snapshot names into the header, be more direct in defining the offset in the on-disk structure from which they're being copied by using "snap_count" rather than "i" in the array index. - If an error occurs, the "snapc" and "snap_names" fields are freed at the end of the function. Make those fields be null pointers after they're freed, to be explicit that they are no longer valid. - Finally, move the definition of the local variable "i" to the innermost scope in which it's needed. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
All of the callers of rbd_req_sync_op() except one pass a non-null "ops" pointer. The only one that does not is rbd_req_sync_read(), which passes CEPH_OSD_OP_READ as its "opcode" and, CEPH_OSD_FLAG_READ for "flags". By allocating the ops array in rbd_req_sync_read() and moving the special case code for the null ops pointer into it, it becomes clear that much of that code is not even necessary. In addition, the "opcode" argument to rbd_req_sync_op() is never actually used, so get rid of that. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
rbd_header_add_snap() passes the address of a version variable to rbd_req_sync_exec(), but it ignores the result. Just pass a null pointer instead. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
Either rbd_create_rw_ops() will succeed, or it will fail because a memory allocation failed. Have it just return a valid pointer or null rather than stuffing a pointer into a provided address and returning an errno. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
It's not obvious whether the snapshot pointer whose address is provided to __rbd_add_snap_dev() will be assigned by that function. Change it to return the snapshot, or a pointer-coded errno in the event of a failure. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Sage Weil authored
We drop the lock when calling the ->alloc_msg() con op, which means we need to (a) not clobber con->in_msg without the mutex held, and (b) we need to verify that we are still in the OPEN state when we retake it to avoid causing any mayhem. If the state does change, -EAGAIN will get us back to con_work() and loop. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
This function's calling convention is very limiting. In particular, we can't return any error other than ENOMEM (and only implicitly), which is a problem (see next patch). Instead, return an normal 0 or error code, and make the skip a pointer output parameter. Drop the useless in_hdr argument (we have the con pointer). Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
The ceph_fault() function takes the con mutex, so we should avoid dropping it before calling it. This fixes a potential race with another thread calling ceph_con_close(), or _open(), or similar (we don't reverify con->state after retaking the lock). Add annotation so that lockdep realizes we will drop the mutex before returning. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
We drop the con mutex when delivering a message. When we retake the lock, we need to verify we are still in the OPEN state before preparing to read the next tag, or else we risk stepping on a connection that has been closed. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
Revoke all mon_client messages when we shut down the old connection. This is mostly moot since we are re-using the same ceph_connection, but it is cleaner. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
If the connect() call immediately fails such that sock == NULL, we still need con_close_socket() to reset our socket state to CLOSED. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
* shiny new inktank.com email addresses * add include/linux/crush directory (previous oversight) Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
There are many (normal) conditions that can lead to us getting unexpected replies, include cluster topology changes, osd failures, and timeouts. There's no need to spam the console about it. Signed-off-by:
Sage Weil <sage@inktank.com> Reviewed-by:
Alex Elder <elder@inktank.com>
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Sage Weil authored
Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
Rename flags with CON_FLAG prefix, move the definitions into the c file, and (better) document their meaning. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
Use a simple set of 6 enumerated values for the socket states (CON_STATE_*) and use those instead of the state bits. All of the con->state checks are now under the protection of the con mutex, so this is safe. It also simplifies many of the state checks because we can check for anything other than the expected state instead of various bits for races we can think of. This appears to hold up well to stress testing both with and without socket failure injection on the server side. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
If we are CLOSED, the socket is closed and we won't get these. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
It is simpler to do this immediately, since we already hold the con mutex. It also avoids the need to deal with a not-quite-CLOSED socket in con_work. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
If the state is CLOSED or OPENING, we shouldn't have a socket. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
Take the con mutex before checking whether the connection is closed to avoid racing with someone else closing it. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
Avoid dropping and retaking con->mutex in the ceph_con_send() case by leaving locking up to the caller. Signed-off-by:
Sage Weil <sage@inktank.com>
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Sage Weil authored
If we fault on a lossy connection, we should still close the socket immediately, and do so under the con mutex. We should also take the con mutex before printing out the state bits in the debug output. Signed-off-by:
Sage Weil <sage@inktank.com>
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Alex Elder authored
rbd_req_sync_unwatch() only ever uses rbd_dev->header_name as the value of its "object_name" parameter, and that value is available within the function already. So get rid of the parameter. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
rbd_req_sync_notify_ack() only ever uses rbd_dev->header_name as the value of its "object_name" parameter, and that value is available within the function already. So get rid of the parameter. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
rbd_req_sync_notify() only ever uses rbd_dev->header_name as the value of its "object_name" parameter, and that value is available within the function already. So get rid of the parameter. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
rbd_req_sync_watch() is only called in one place, and in that place it passes rbd_dev->header_name as the value of the "object_name" parameter. This value is available within the function already. Having the extra parameter leaves the impression the object name could take on different values, but it does not. So get rid of the parameter. We can always add it back again if we find we want to watch some other object in the future. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
Both rbd_register_snap_dev() and __rbd_remove_snap_dev() have rbd_dev parameters that are unused. Remove them. Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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Alex Elder authored
The function rbd_header_from_disk() is only called in one spot, and it passes GFP_KERNEL as its value for the gfp_flags parameter. Just drop that parameter and substitute GFP_KERNEL everywhere within that function it had been used. (If we find we need the parameter again in the future it's easy enough to add back again.) Signed-off-by:
Alex Elder <elder@inktank.com> Reviewed-by:
Josh Durgin <josh.durgin@inktank.com>
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