NFS: move credential expiry tracking out of SUNRPC into NFS.

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NFS needs to know when a credential is about to expire so that
it can modify write-back behaviour to finish the write inside the
expiry time.
It currently uses functions in SUNRPC code which make use of a
fairly complex callback scheme and flags in the generic credientials.

As I am working to discard the generic credentials, this has to change.

This patch moves the logic into NFS, in part by finding and caching
the low-level credential in the open_context.  We then make direct
cred-api calls on that.

This makes the code much simpler and removes a dependency on generic
rpc credentials.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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This commit is contained in:

NeilBrown 2018-12-03 11:30:30 +11:00 • committed by Anna Schumaker

parent 1de7eea929

commit ddf529eeed

7 changed files with 28 additions and 124 deletions

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2

fs/nfs/inode.c

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24

fs/nfs/write.c

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1

include/linux/nfs_fs.h

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12

include/linux/sunrpc/auth.h

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23

net/sunrpc/auth.c

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69

net/sunrpc/auth_generic.c

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21

net/sunrpc/auth_gss/auth_gss.c

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