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authorWeston Andros Adamson <dros@netapp.com>2013-08-13 16:37:34 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-09-05 10:44:17 -0400
commitfa940720ceff2d7b24b4898c51a440ab59f39a4d (patch)
tree61fbe57804f1101997fa70e0d45885f3fbbe81ec /fs/nfs
parentab4c2361358ebdf4933f6bfd1dc98d7a14b55769 (diff)
downloadop-kernel-dev-fa940720ceff2d7b24b4898c51a440ab59f39a4d.zip
op-kernel-dev-fa940720ceff2d7b24b4898c51a440ab59f39a4d.tar.gz
nfs4.1: Add SP4_MACH_CRED cleanup support
CLOSE and LOCKU can use the machine credential. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ab6ee1d..cba486a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2615,6 +2615,9 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
};
int status = -ENOMEM;
+ nfs4_state_protect(server->nfs_client, NFS_SP4_MACH_CRED_CLEANUP,
+ &task_setup_data.rpc_client, &msg);
+
calldata = kzalloc(sizeof(*calldata), gfp_mask);
if (calldata == NULL)
goto out;
@@ -5230,6 +5233,9 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl,
.flags = RPC_TASK_ASYNC,
};
+ nfs4_state_protect(NFS_SERVER(lsp->ls_state->inode)->nfs_client,
+ NFS_SP4_MACH_CRED_CLEANUP, &task_setup_data.rpc_client, &msg);
+
/* Ensure this is an unlock - when canceling a lock, the
* canceled lock is passed in, and it won't be an unlock.
*/
@@ -6117,7 +6123,8 @@ out:
}
/*
- * Minimum set of SP4_MACH_CRED operations from RFC 5661
+ * Minimum set of SP4_MACH_CRED operations from RFC 5661 in the enforce map
+ * and operations we'd like to see to enable certain features in the allow map
*/
static const struct nfs41_state_protection nfs4_sp4_mach_cred_request = {
.how = SP4_MACH_CRED,
@@ -6127,6 +6134,10 @@ static const struct nfs41_state_protection nfs4_sp4_mach_cred_request = {
1 << (OP_CREATE_SESSION - 32) |
1 << (OP_DESTROY_SESSION - 32) |
1 << (OP_DESTROY_CLIENTID - 32)
+ },
+ .allow.u.words = {
+ [0] = 1 << (OP_CLOSE) |
+ 1 << (OP_LOCKU)
}
};
@@ -6186,6 +6197,12 @@ static int nfs4_sp4_select_mode(struct nfs_client *clp,
dfprintk(MOUNT, "sp4_mach_cred: disabled\n");
return -EINVAL;
}
+
+ if (test_bit(OP_CLOSE, sp->allow.u.longs) &&
+ test_bit(OP_LOCKU, sp->allow.u.longs)) {
+ dfprintk(MOUNT, " cleanup mode enabled\n");
+ set_bit(NFS_SP4_MACH_CRED_CLEANUP, &clp->cl_sp4_flags);
+ }
}
return 0;
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