linux/fs/nfs/delegation.c, branch v4.0

NFSv4: Ensure we skip delegations that are already being returned

2015-03-02T23:09:15Z

In nfs_client_return_marked_delegations() and nfs_delegation_reap_unclaimed() we want to optimise the loop traversal by skipping delegations that are already in the process of being returned. Signed-off-by: Trond Myklebust

NFSv4: Pin the superblock while we're returning the delegation

2015-03-02T23:09:14Z

This patch ensures that the superblock doesn't go ahead and disappear underneath us while the state manager thread is returning delegations. Signed-off-by: Trond Myklebust

NFSv4: Ensure we honour NFS_DELEGATION_RETURNING in nfs_inode_set_delegation()

2015-03-02T23:09:14Z

Ensure that nfs_inode_set_delegation() doesn't inadvertently detach a delegation that is already in the process of being returned. Signed-off-by: Trond Myklebust

NFSv4: Ensure that we don't reap a delegation that is being returned

2015-03-02T23:09:13Z

Signed-off-by: Trond Myklebust

NFSv4: Don't call put_rpccred() under the rcu_read_lock()

2015-03-02T04:23:07Z

put_rpccred() can sleep. Fixes: 8f649c3762547 ("NFSv4: Fix the locking in nfs_inode_reclaim_delegation()") Cc: stable@vger.kernel.org # 2.6.35+ Signed-off-by: Trond Myklebust

Merge branch 'cleanups'

2015-02-18T15:28:37Z

Merge cleanups requested by Linus. * cleanups: (3 commits) pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit nfs: Can call nfs_clear_page_commit() instead nfs: Provide and use helper functions for marking a page as unstable

NFSv4: Kill unused nfs_inode->delegation_state field

2015-02-14T02:40:27Z

Signed-off-by: Trond Myklebust

Merge tag 'nfs-for-3.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2015-02-12T01:14:54Z

Pull NFS client updates from Trond Myklebust: "Highlights incluse: Features: - Removing the forced serialisation of open()/close() calls in NFSv4.x (x>0) makes for a significant performance improvement in metadata intensive workloads. - Full support for the pNFS "flexible files" layout type - Further RPC/RDMA client improvements from Chuck Bugfixes: - Stable fix: NFSv4.1 backchannel calls blocking operations with !TASK_RUNNING - Stable fix: pnfs_generic_pg_init_read/write can be called with lseg == NULL - Stable fix: Fix an Oopsable condition when nsm_mon_unmon is called as part of the namespace cleanup, - Stable fix: Ensure we reference the inode for return-on-close in delegreturn - Use SO_REUSEPORT to ensure that NFSv3 TCP connections can rebind to the same source address/port combination during a disconnect/ reconnect event. This is a requirement imposed by most NFSv3 server duplicate reply cache implementations. Optimisations: - Ask for no NFSv4.1 delegations on OPEN if using O_DIRECT Other: - Add Anna Schumaker as co-maintainer for the NFS client" * tag 'nfs-for-3.20-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (119 commits) SUNRPC: Cleanup to remove xs_tcp_close() pnfs: delete an unintended goto pnfs/flexfiles: Do not dprintk after the free SUNRPC: Fix stupid typo in xs_sock_set_reuseport SUNRPC: Define xs_tcp_fin_timeout only if CONFIG_SUNRPC_DEBUG SUNRPC: Handle connection reset more efficiently. SUNRPC: Remove the redundant XPRT_CONNECTION_CLOSE flag SUNRPC: Make xs_tcp_close() do a socket shutdown rather than a sock_release SUNRPC: Ensure xs_tcp_shutdown() requests a full close of the connection SUNRPC: Cleanup to remove remaining uses of XPRT_CONNECTION_ABORT SUNRPC: Remove TCP socket linger code SUNRPC: Remove TCP client connection reset hack SUNRPC: TCP/UDP always close the old socket before reconnecting SUNRPC: Add helpers to prevent socket create from racing SUNRPC: Ensure xs_reset_transport() resets the close connection flags SUNRPC: Do not clear the source port in xs_reset_transport SUNRPC: Handle EADDRINUSE on connect SUNRPC: Set SO_REUSEPORT socket option for TCP connections NFSv4.1: Fix pnfs_put_lseg races NFSv4.1: pnfs_send_layoutreturn should use GFP_NOFS ...

NFSv4: Deal with atomic upgrades of an existing delegation

2015-01-24T23:46:51Z

Ensure that we deal correctly with the case where the server sends us a newer instance of the same delegation. If the stateids match, but the sequence numbers differ, then treat the new delegation as if it were an atomic upgrade. Signed-off-by: Trond Myklebust

locks: add a dedicated spinlock to protect i_flctx lists

2015-01-16T21:08:49Z

We can now add a dedicated spinlock without expanding struct inode. Change to using that to protect the various i_flctx lists. Signed-off-by: Jeff Layton Acked-by: Christoph Hellwig