wireguard-linux/fs/nfs/filelayout/filelayoutdev.c, branch jd/unified-crypt-queue

pNFS/flexfiles: never nfs4_mark_deviceid_unavailable

2017-03-17T20:07:17Z

The flexfiles layout should never mark a device unavailable. Move nfs4_mark_deviceid_unavailable out of nfs4_pnfs_ds_connect and call directly from files layout where it's still needed. The flexfiles driver still handles marked devices in error paths, but will now print a rate limited warning. Signed-off-by: Weston Andros Adamson Signed-off-by: Anna Schumaker

pNFS: return status from nfs4_pnfs_ds_connect

2017-03-17T20:07:10Z

The nfs4_pnfs_ds_connect path can call rpc_create which can fail or it can wait on another context to reach the same failure. This checks that the rpc_create succeeded and returns the error to the caller. When an error is returned, both the files and flexfiles layouts will return NULL from _prepare_ds(). The flexfiles layout will also return the layout with the error NFS4ERR_NXIO. Signed-off-by: Weston Andros Adamson Signed-off-by: Anna Schumaker

NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success.

2016-12-19T22:29:48Z

Various places assume that if nfs4_fl_prepare_ds() turns a non-NULL 'ds', then ds->ds_clp will also be non-NULL. This is not necessasrily true in the case when the process received a fatal signal while nfs4_pnfs_ds_connect is waiting in nfs4_wait_ds_connect(). In that case ->ds_clp may not be set, and the devid may not recently have been marked unavailable. So add a test for ds_clp == NULL and return NULL in that case. Fixes: c23266d532b4 ("NFS4.1 Fix data server connection race") Signed-off-by: NeilBrown Acked-by: Olga Kornievskaia Acked-by: Adamson, Andy Signed-off-by: Trond Myklebust

NFS: Remove unused authflavour parameter from nfs_get_client()

2016-12-01T22:46:32Z

This parameter hasn't been used since f8407299 (Linux 3.11-rc2), so let's remove it from this function and callers. Signed-off-by: Anna Schumaker Signed-off-by: Trond Myklebust

NFSv4.1: Convert pNFS deviceid to use kfree_rcu()

2015-03-27T16:32:24Z

Use of synchronize_rcu() when unmounting and potentially freeing a lot of deviceids is problematic. There really is no reason why we can't just use kfree_rcu() here. Signed-off-by: Trond Myklebust

nfs41: allow LD to choose DS connection version/minor_version

2015-02-03T19:06:34Z

flexfile layout may need to set such when making DS connections. Signed-off-by: Peng Tao Signed-off-by: Tom Haynes

nfs41: allow LD to choose DS connection auth flavor

2015-02-03T19:06:33Z

flexfile layout may use different auth flavor as specified by MDS. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Tom Haynes

nfs41: pull nfs4_ds_connect from file layout to generic pnfs

2015-02-03T19:06:32Z

It can be reused by flexfiles layout client. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Tom Haynes

nfs41: pull decode_ds_addr from file layout to generic pnfs

2015-02-03T19:06:32Z

It can be reused by flexfile layout. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Tom Haynes

nfs41: pull data server cache from file layout to generic pnfs

2015-02-03T19:06:32Z

Also pull nfs4_pnfs_ds_addr and nfs4_pnfs_ds to generic pnfs. They can all be reused by flexfile layout as well. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Tom Haynes