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2010-02-10nfs41: implement cb_recall_slotAndy Adamson
Drain the fore channel and reset the max_slots to the new value. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: back channel drc minimal implementationAndy Adamson
For now the back channel ca_maxresponsesize_cached is 0 and there is no backchannel DRC. Return NFS4ERR_REP_TOO_BIG_TO_CACHE when a cb_sequence cachethis is true. When it is false, return NFS4ERR_RETRY_UNCACHED_REP as the next operation error. Remember the replay error accross compound operation processing. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: prepare for back channel drcAndy Adamson
Make all cb_sequence arguments available to verify_seqid which will make replay decisions. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: remove uneeded checks in callback processingAndy Adamson
All callback operations have arguments to decode and require processing. The preprocess_nfs4X_op functions catch unsupported or illegal ops so decode_args and process_op pointers are always non NULL. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: directly encode back channel errorAndy Adamson
Skip all other processing when error is encountered. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: fix wrong error on callback header xdr overflowAndy Adamson
Set NFS4ERR_RESOURCE as CB_COMPOUND status and do not return an op on decode_op_hdr or encode_op_hdr buffer overflow. NFS4ERR_RESOURCE is correct for v4.0. Will fix the return for v4.1 along with all the other NFS4ERR_RESOURCE errors in a later patch. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: Process callback's referring call listMike Sager
If a CB_SEQUENCE referring call triple matches a slot table entry, the client is still waiting for a response to the original request. In this case, return NFS4ERR_DELAY as the response to the callback. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: Check slot table for referring callsMike Sager
Traverse a list of referring calls and look for a session/slot/seq number match. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs41: Adjust max cache response size valueMike Sager
For the CREATE_SESSION attribute ca_maxresponsesize_cached, calculate the value based on the rpc reply header size plus the maximum nfs compound reply size. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs: handle NFSv2 -EKEYEXPIRED returns from RPC layer appropriatelyJeff Layton
Add a wrapper around rpc_call_sync that handles -EKEYEXPIRED errors from the RPC layer as it would an -EJUKEBOX error if NFSv2 had such a thing. Also, add a handler for that error for async calls that makes it resubmit the RPC on -EKEYEXPIRED. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs: handle NFSv3 -EKEYEXPIRED errors as we would -EJUKEBOXJeff Layton
We're using -EKEYEXPIRED to indicate that a krb5 credcache contains an expired ticket and that we should have the NFS layer retry the RPC call instead of returning an error back to the caller. Handle this as we would an -EJUKEBOX error return. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-10nfs4: handle -EKEYEXPIRED errors from RPC layerJeff Layton
If a KRB5 TGT ticket expires, we don't want to return an error immediatel. If someone has a long running job and just forgets to run "kinit" in time then this will make it fail. Instead, we want to treat this situation as we would NFS4ERR_DELAY and retry the upcall after delaying a bit with an exponential backoff. This patch just makes any place that would handle NFS4ERR_DELAY also handle -EKEYEXPIRED the same way. In the future, we may want to be more sophisticated however and handle hard vs. soft mounts differently, or specify some upper limit on how long we'll wait for a new TGT to be acquired. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-03NFS: Don't clobber the attribute type in nfs_update_inode()Trond Myklebust
If the NFS_ATTR_FATTR_TYPE field isn't set in fattr->valid, then we should not set the S_IFMT part of inode->i_mode. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-02-03NFS: Fix a umount raceTrond Myklebust
Ensure that we unregister the bdi before kill_anon_super() calls ida_remove() on our device name. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
2010-02-03NFS: Fix an Oops when truncating a fileTrond Myklebust
The VM/VFS does not allow mapping->a_ops->invalidatepage() to fail. Unfortunately, nfs_wb_page_cancel() may fail if a fatal signal occurs. Since the NFS code assumes that the page stays mapped for as long as the writeback is active, we can end up Oopsing (among other things). The only safe fix here is to convert nfs_wait_on_request(), so as to make it uninterruptible (as is already the case with wait_on_page_writeback()). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
2010-01-26NFS: Ensure that we handle NFS4ERR_STALE_STATEID correctlyTrond Myklebust
Even if the server is crazy, we should be able to mark the stateid as being bad, to ensure it gets recovered. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFSv4.1: Don't call nfs4_schedule_state_recovery() unnecessarilyTrond Myklebust
Currently, nfs4_handle_exception() will call it twice if called with an error of -NFS4ERR_STALE_CLIENTID, -NFS4ERR_STALE_STATEID or -NFS4ERR_EXPIRED. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFSv4: Don't allow posix locking against servers that don't support itTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFSv4: Ensure that the NFSv4 locking can recover from stateid errorsTrond Myklebust
In most cases, we just want to mark the lock_stateid sequence id as being uninitialised. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFS: Avoid warnings when CONFIG_NFS_V4=nDavid Howells
Avoid the following warnings when CONFIG_NFS_V4=n: fs/nfs/sysctl.c:19: warning: unused variable `nfs_set_port_max' fs/nfs/sysctl.c:18: warning: unused variable `nfs_set_port_min' by making those variables contingent on NFSv4 being configured. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFS: Make nfs_commitdata_release staticH Hartley Sweeten
The symbol nfs_commitdata_release is only used locally in this file. Make it static to prevent the following sparse warning: warning: symbol 'nfs_commitdata_release' was not declared. Should it be static? Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFS: Try to commit unstable writes in nfs_release_page()Trond Myklebust
If someone calls nfs_release_page(), we presumably already know that the page is clean, however it may be holding an unstable write. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-26NFS: Fix a reference leak in nfs_wb_cancel_page()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
2010-01-06nfs: fix oops in nfs_rename()OGAWA Hirofumi
Recent change is missing to update "rehash". With that change, it will become the cause of adding dentry to hash twice. This explains the reason of Oops (dereference the freed dentry in __d_lookup()) on my machine. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Reported-by: Marvin <marvin24@gmx.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-17Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"Linus Torvalds
This reverts commit e9496ff46a20a8592fdc7bdaaf41b45eb808d310. Quoth Al: "it's dependent on a lot of other stuff not currently in mainline and badly broken with current fs/namespace.c. Sorry, badly out-of-order cherry-pick from old queue. PS: there's a large pending series reworking the refcounting and lifetime rules for vfsmounts that will, among other things, allow to rip a subtree away _without_ dissolving connections in it, to be garbage-collected when all active references are gone. It's considerably saner wrt "is the subtree busy" logics, but it's nowhere near being ready for merge at the moment; this changeset is one of the things becoming possible with that sucker, but it certainly shouldn't have been picked during this cycle. My apologies..." Noticed-by: Eric Paris <eparis@redhat.com> Requested-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (38 commits) direct I/O fallback sync simplification ocfs: stop using do_sync_mapping_range cleanup blockdev_direct_IO locking make generic_acl slightly more generic sanitize xattr handler prototypes libfs: move EXPORT_SYMBOL for d_alloc_name vfs: force reval of target when following LAST_BIND symlinks (try #7) ima: limit imbalance msg Untangling ima mess, part 3: kill dead code in ima Untangling ima mess, part 2: deal with counters Untangling ima mess, part 1: alloc_file() O_TRUNC open shouldn't fail after file truncation ima: call ima_inode_free ima_inode_free IMA: clean up the IMA counts updating code ima: only insert at inode creation time ima: valid return code from ima_inode_alloc fs: move get_empty_filp() deffinition to internal.h Sanitize exec_permission_lite() Kill cached_lookup() and real_lookup() Kill path_lookup_open() ... Trivial conflicts in fs/direct-io.c
2009-12-16Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFSv4: Fix a regression in the NFSv4 state manager NFSv4: Release the sequence id before restarting a CLOSE rpc call nfs41: fix session fore channel negotiation nfs41: do not zero seqid portion of stateid on close nfs: run state manager in privileged mode nfs: make recovery state manager operations privileged nfs: enforce FIFO ordering of operations trying to acquire slot rpc: add a new priority in RPC task nfs: remove rpc_task argument from nfs4_find_slot rpc: add rpc_queue_empty function nfs: change nfs4_do_setlk params to identify recovery type nfs: do not do a LOOKUP after open nfs: minor cleanup of session draining
2009-12-16Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.33' of git://linux-nfs.org/~bfields/linux: (42 commits) nfsd: remove pointless paths in file headers nfsd: move most of nfsfh.h to fs/nfsd nfsd: remove unused field rq_reffh nfsd: enable V4ROOT exports nfsd: make V4ROOT exports read-only nfsd: restrict filehandles accepted in V4ROOT case nfsd: allow exports of symlinks nfsd: filter readdir results in V4ROOT case nfsd: filter lookup results in V4ROOT case nfsd4: don't continue "under" mounts in V4ROOT case nfsd: introduce export flag for v4 pseudoroot nfsd: let "insecure" flag vary by pseudoflavor nfsd: new interface to advertise export features nfsd: Move private headers to source directory vfs: nfsctl.c un-used nfsd #includes lockd: Remove un-used nfsd headers #includes s390: remove un-used nfsd #includes sparc: remove un-used nfsd #includes parsic: remove un-used nfsd #includes compat.c: Remove dependence on nfsd private headers ...
2009-12-16fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-15NFSv4: Fix a regression in the NFSv4 state managerTrond Myklebust
Commit 5601a00d671fe89f9b087513244abcd08ad67e7d (nfs: run state manager in privileged mode) introduces a regression in the NFSv4 code when compiled with CONFIG_NFS_V4_1. The calls to nfs4_end_drain_session() from the main loop in nfs4_state_manager() Oops due to the lack of an NFSv4.1 session when running NFSv4.0. The fix is to move those two calls back into nfs41_init_clientid() and nfs4_reset_session(). The calls to nfs4_end_drain_session() that remain inside nfs4_state_manager() are safe, since the NFSv4.0 code will never set the NFS4CLNT_SESSION_DRAINING bit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15NFSv4: Release the sequence id before restarting a CLOSE rpc callTrond Myklebust
If the CLOSE or OPEN_DOWNGRADE call triggers a state recovery, and has to be resent, then we must release the seqid. Otherwise the open recovery will wait for the close to finish, which causes a deadlock. This is mainly a NFSv4.1 problem, although it can theoretically happen with NFSv4.0 too, in a OPEN_DOWNGRADE situation. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs41: fix session fore channel negotiationAndy Adamson
If the rsize or wsize is not set on the mount command, negotiate the highest supported rsize and wsize in session creation. Fixes a bug where the client negotiated nfs41_maxwrite_overhead as ca_maxrequestsize and nfs41_maxread_overhead as ca_maxresponsesize resulting in NFS4ERR_REQ_TOO_BIG errors on writes. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs41: do not zero seqid portion of stateid on closeAndy Adamson
Remove code left over from a previous minorversion draft. which specified zeroing seqid portions of stateid's. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: run state manager in privileged modeAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: make recovery state manager operations privilegedAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: enforce FIFO ordering of operations trying to acquire slotAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: remove rpc_task argument from nfs4_find_slotAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: change nfs4_do_setlk params to identify recovery typeAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: do not do a LOOKUP after openAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-15nfs: minor cleanup of session drainingAlexandros Batsakis
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-14Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (75 commits) NFS: Fix nfs_migrate_page() rpc: remove unneeded function parameter in gss_add_msg() nfs41: Invoke RECLAIM_COMPLETE on all new client ids SUNRPC: IS_ERR/PTR_ERR confusion NFSv41: Fix a potential state leakage when restarting nfs4_close_prepare nfs41: Handle NFSv4.1 session errors in the delegation recall code nfs41: Retry delegation return if it failed with session error nfs41: Handle session errors during delegation return nfs41: Mark stateids in need of reclaim if state manager gets stale clientid NFS: Fix up the declaration of nfs4_restart_rpc when NFSv4 not configured nfs41: Don't clear DRAINING flag on NFS4ERR_STALE_CLIENTID nfs41: nfs41_setup_state_renewal NFSv41: More cleanups NFSv41: Fix up some bugs in the NFS4CLNT_SESSION_DRAINING code NFSv41: Clean up slot table management NFSv41: Fix nfs4_proc_create_session nfs41: Invoke RECLAIM_COMPLETE nfs41: RECLAIM_COMPLETE functionality nfs41: RECLAIM_COMPLETE XDR functionality Cleanup some NFSv4 XDR decode comments ...
2009-12-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits) m68k: rename global variable vmalloc_end to m68k_vmalloc_end percpu: add missing per_cpu_ptr_to_phys() definition for UP percpu: Fix kdump failure if booted with percpu_alloc=page percpu: make misc percpu symbols unique percpu: make percpu symbols in ia64 unique percpu: make percpu symbols in powerpc unique percpu: make percpu symbols in x86 unique percpu: make percpu symbols in xen unique percpu: make percpu symbols in cpufreq unique percpu: make percpu symbols in oprofile unique percpu: make percpu symbols in tracer unique percpu: make percpu symbols under kernel/ and mm/ unique percpu: remove some sparse warnings percpu: make alloc_percpu() handle array types vmalloc: fix use of non-existent percpu variable in put_cpu_var() this_cpu: Use this_cpu_xx in trace_functions_graph.c this_cpu: Use this_cpu_xx for ftrace this_cpu: Use this_cpu_xx in nmi handling this_cpu: Use this_cpu operations in RCU this_cpu: Use this_cpu ops for VM statistics ... Fix up trivial (famous last words) global per-cpu naming conflicts in arch/x86/kvm/svm.c mm/slab.c
2009-12-13Merge branch 'nfs-for-2.6.33'Trond Myklebust
2009-12-10NFS: Fix nfs_migrate_page()Trond Myklebust
The call to migrate_page() will cause the page->private field to be cleared. Also fix up the locking around the page->private transfer, so that we ensure that calls to nfs_page_find_request() don't end up racing. Finally, fix up a double free bug: nfs_unlock_request() already calls nfs_release_request() for us... Reported-by: Wu Fengguang <fengguang.wu@intel.com> Tested-by: Andi Kleen <andi@firstfloor.org> Cc: stable@kernel.org Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-10vfs: Implement proper O_SYNC semanticsChristoph Hellwig
While Linux provided an O_SYNC flag basically since day 1, it took until Linux 2.4.0-test12pre2 to actually get it implemented for filesystems, since that day we had generic_osync_around with only minor changes and the great "For now, when the user asks for O_SYNC, we'll actually give O_DSYNC" comment. This patch intends to actually give us real O_SYNC semantics in addition to the O_DSYNC semantics. After Jan's O_SYNC patches which are required before this patch it's actually surprisingly simple, we just need to figure out when to set the datasync flag to vfs_fsync_range and when not. This patch renames the existing O_SYNC flag to O_DSYNC while keeping it's numerical value to keep binary compatibility, and adds a new real O_SYNC flag. To guarantee backwards compatiblity it is defined as expanding to both the O_DSYNC and the new additional binary flag (__O_SYNC) to make sure we are backwards-compatible when compiled against the new headers. This also means that all places that don't care about the differences can just check O_DSYNC and get the right behaviour for O_SYNC, too - only places that actuall care need to check __O_SYNC in addition. Drivers and network filesystems have been updated in a fail safe way to always do the full sync magic if O_DSYNC is set. The few places setting O_SYNC for lower layers are kept that way for now to stay failsafe. We enforce that O_DSYNC is set when __O_SYNC is set early in the open path to make sure we always get these sane options. Note that parisc really screwed up their headers as they already define a O_DSYNC that has always been a no-op. We try to repair it by using it for the new O_DSYNC and redefinining O_SYNC to send both the traditional O_SYNC numerical value _and_ the O_DSYNC one. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-08nfs41: Invoke RECLAIM_COMPLETE on all new client idsRicardo Labiaga
The NFSv4.1 spec indicates RECLAIM_COMPLETE is to be issued whenever a client establishes a new client id, not only after detecting the server has rebooted. Set the NFS4CLNT_RECLAIM_REBOOT bit after every new client id has been established. This enables us to issue RECLAIM_COMPLETE during the wrap up of the NFS4CLNT_RECLAIM_REBOOT state. Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-08Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits) cfq-iosched: Do not access cfqq after freeing it block: include linux/err.h to use ERR_PTR cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit blkio: Allow CFQ group IO scheduling even when CFQ is a module blkio: Implement dynamic io controlling policy registration blkio: Export some symbols from blkio as its user CFQ can be a module block: Fix io_context leak after failure of clone with CLONE_IO block: Fix io_context leak after clone with CLONE_IO cfq-iosched: make nonrot check logic consistent io controller: quick fix for blk-cgroup and modular CFQ cfq-iosched: move IO controller declerations to a header file cfq-iosched: fix compile problem with !CONFIG_CGROUP blkio: Documentation blkio: Wait on sync-noidle queue even if rq_noidle = 1 blkio: Implement group_isolation tunable blkio: Determine async workload length based on total number of queues blkio: Wait for cfq queue to get backlogged if group is empty blkio: Propagate cgroup weight updation to cfq groups blkio: Drop the reference to queue once the task changes cgroup blkio: Provide some isolation between groups ...
2009-12-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits) security/tomoyo: Remove now unnecessary handling of security_sysctl. security/tomoyo: Add a special case to handle accesses through the internal proc mount. sysctl: Drop & in front of every proc_handler. sysctl: Remove CTL_NONE and CTL_UNNUMBERED sysctl: kill dead ctl_handler definitions. sysctl: Remove the last of the generic binary sysctl support sysctl net: Remove unused binary sysctl code sysctl security/tomoyo: Don't look at ctl_name sysctl arm: Remove binary sysctl support sysctl x86: Remove dead binary sysctl support sysctl sh: Remove dead binary sysctl support sysctl powerpc: Remove dead binary sysctl support sysctl ia64: Remove dead binary sysctl support sysctl s390: Remove dead sysctl binary support sysctl frv: Remove dead binary sysctl support sysctl mips/lasat: Remove dead binary sysctl support sysctl drivers: Remove dead binary sysctl support sysctl crypto: Remove dead binary sysctl support sysctl security/keys: Remove dead binary sysctl support sysctl kernel: Remove binary sysctl logic ...
2009-12-08NFSv41: Fix a potential state leakage when restarting nfs4_close_prepareTrond Myklebust
Currently, if the call to nfs4_setup_sequence() in nfs4_close_prepare fails, any later retries will fail to launch an RPC call, due to the fact that the &state->flags will have been cleared. Ditto if nfs4_close_done() triggers a call to the NFSv4.1 version of nfs_restart_rpc(). We therefore move the actual clearing of the state->flags to nfs4_close_done(), when we know that the RPC call was successful. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-12-07nfs41: Handle NFSv4.1 session errors in the delegation recall codeRicardo Labiaga
Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 12:31:14 +0000