linux-toradex.git/include/linux/nfs_fs_sb.h, branch v4.9.87

nfs: allow blocking locks to be awoken by lock callbacks

2016-09-22T19:54:27+00:00

Add a waitqueue head to the client structure. Have clients set a wait
on that queue prior to requesting a lock from the server. If the lock
is blocked, then we can use that to wait for wakeups.

Note that we do need to do this "manually" since we need to set the
wait on the waitqueue prior to requesting the lock, but requesting a
lock can involve activities that can block.

However, only do that for NFSv4.1 locks, either by compiling out
all of the waitqueue handling when CONFIG_NFS_V4_1 is disabled, or
skipping all of it at runtime if we're dealing with v4.0, or v4.1
servers that don't send lock callbacks.

Note too that even when we expect to get a lock callback, RFC5661
section 20.11.4 is pretty clear that we still need to poll for them,
so we do still sleep on a timeout. We do however always poll at the
longest interval in that case.

Signed-off-by: Jeff Layton 
[Anna: nfs4_retry_setlk() "status" should default to -ERESTARTSYS]
Signed-off-by: Anna Schumaker

NFS: Add COPY nfs operation

2016-05-17T19:47:55+00:00

This adds the copy_range file_ops function pointer used by the
sys_copy_range() function call.  This patch only implements sync copies,
so if an async copy happens we decode the stateid and ignore it.

Signed-off-by: Anna Schumaker

nfs: machine credential support for additional operations

2015-12-28T14:57:15+00:00

Allow LAYOUTRETURN and DELEGRETURN to use machine credentials if the
server supports it. Add request for OPEN_DOWNGRADE as the close path
also uses that.

Signed-off-by: Andrew Elble 
Signed-off-by: Trond Myklebust

nfs: get clone_blksize when probing fsinfo

2015-10-15T20:08:18+00:00

NFSv42 CLONE operation is supposed to respect it.

Signed-off-by: Peng Tao 
Signed-off-by: Trond Myklebust

nfs42: add CLONE proc functions

2015-10-15T20:07:36+00:00

Signed-off-by: Peng Tao 
Signed-off-by: Trond Myklebust

NFS: Get suppattr_exclcreat when getting server capabilities

2015-08-27T23:45:27+00:00

Create file with attributs as NFS4_CREATE_EXCLUSIVE4_1 mode
depends on suppattr_exclcreat attribut.

v3, same as v2.

Signed-off-by: Kinglong Mee 
Signed-off-by: Trond Myklebust

NFS: Remove the "NFS_CAP_CHANGE_ATTR" capability

2015-07-22T21:15:54+00:00

Setting the change attribute has been mandatory for all NFS versions, since
commit 3a1556e8662c ("NFSv2/v3: Simulate the change attribute"). We should
therefore not have anything be conditional on it being set/unset.

Signed-off-by: Trond Myklebust

NFSv4.2: LAYOUTSTATS is optional to implement

2015-06-27T15:48:58+00:00

Make it so, by checking the return value for NFS4ERR_MOTSUPP and
caching the information as a server capability.

Signed-off-by: Trond Myklebust

nfsv3: introduce nfs3_set_ds_client

2015-02-03T19:06:34+00:00

The flexfiles layout wants to create DS connection over NFSv3.
Add nfs3_set_ds_client to allow that to happen.

Signed-off-by: Peng Tao 
Signed-off-by: Tom Haynes

NFSv4: Cache the NFSv4/v4.1 client owner_id in the struct nfs_client

2015-01-06T03:40:53+00:00

Ensure that we cache the NFSv4/v4.1 client owner_id so that we can
verify it when we're doing trunking detection.

Signed-off-by: Trond Myklebust