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authorLinus Torvalds <torvalds@linux-foundation.org>2019-01-03 01:35:23 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2019-01-03 01:35:23 +0100
commite6b92572808467f35fd159d47c45b650de29e722 (patch)
tree5fbd2e6279539c4f3eeeca0d6a69779bdbd0d6a4 /fs/nfs/write.c
parentMerge tag 'nfsd-4.21' of git://linux-nfs.org/~bfields/linux (diff)
parentsunrpc: convert to DEFINE_SHOW_ATTRIBUTE (diff)
downloadlinux-e6b92572808467f35fd159d47c45b650de29e722.tar.xz
linux-e6b92572808467f35fd159d47c45b650de29e722.zip
Merge tag 'nfs-for-4.21-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker: "Stable bugfixes: - xprtrdma: Yet another double DMA-unmap # v4.20 Features: - Allow some /proc/sys/sunrpc entries without CONFIG_SUNRPC_DEBUG - Per-xprt rdma receive workqueues - Drop support for FMR memory registration - Make port= mount option optional for RDMA mounts Other bugfixes and cleanups: - Remove unused nfs4_xdev_fs_type declaration - Fix comments for behavior that has changed - Remove generic RPC credentials by switching to 'struct cred' - Fix crossing mountpoints with different auth flavors - Various xprtrdma fixes from testing and auditing the close code - Fixes for disconnect issues when using xprtrdma with krb5 - Clean up and improve xprtrdma trace points - Fix NFS v4.2 async copy reboot recovery" * tag 'nfs-for-4.21-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (63 commits) sunrpc: convert to DEFINE_SHOW_ATTRIBUTE sunrpc: Add xprt after nfs4_test_session_trunk() sunrpc: convert unnecessary GFP_ATOMIC to GFP_NOFS sunrpc: handle ENOMEM in rpcb_getport_async NFS: remove unnecessary test for IS_ERR(cred) xprtrdma: Prevent leak of rpcrdma_rep objects NFSv4.2 fix async copy reboot recovery xprtrdma: Don't leak freed MRs xprtrdma: Add documenting comment for rpcrdma_buffer_destroy xprtrdma: Replace outdated comment for rpcrdma_ep_post xprtrdma: Update comments in frwr_op_send SUNRPC: Fix some kernel doc complaints SUNRPC: Simplify defining common RPC trace events NFS: Fix NFSv4 symbolic trace point output xprtrdma: Trace mapping, alloc, and dereg failures xprtrdma: Add trace points for calls to transport switch methods xprtrdma: Relocate the xprtrdma_mr_map trace points xprtrdma: Clean up of xprtrdma chunk trace points xprtrdma: Remove unused fields from rpcrdma_ia xprtrdma: Cull dprintk() call sites ...
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r--fs/nfs/write.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 4f15665f0ad1..5a0bbf917a32 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1233,9 +1233,12 @@ int
nfs_key_timeout_notify(struct file *filp, struct inode *inode)
{
struct nfs_open_context *ctx = nfs_file_open_context(filp);
- struct rpc_auth *auth = NFS_SERVER(inode)->client->cl_auth;
- return rpcauth_key_timeout_notify(auth, ctx->cred);
+ if (nfs_ctx_key_to_expire(ctx, inode) &&
+ !ctx->ll_cred)
+ /* Already expired! */
+ return -EACCES;
+ return 0;
}
/*
@@ -1244,8 +1247,23 @@ nfs_key_timeout_notify(struct file *filp, struct inode *inode)
bool nfs_ctx_key_to_expire(struct nfs_open_context *ctx, struct inode *inode)
{
struct rpc_auth *auth = NFS_SERVER(inode)->client->cl_auth;
+ struct rpc_cred *cred = ctx->ll_cred;
+ struct auth_cred acred = {
+ .cred = ctx->cred,
+ };
- return rpcauth_cred_key_to_expire(auth, ctx->cred);
+ if (cred && !cred->cr_ops->crmatch(&acred, cred, 0)) {
+ put_rpccred(cred);
+ ctx->ll_cred = NULL;
+ cred = NULL;
+ }
+ if (!cred)
+ cred = auth->au_ops->lookup_cred(auth, &acred, 0);
+ if (!cred || IS_ERR(cred))
+ return true;
+ ctx->ll_cred = cred;
+ return !!(cred->cr_ops->crkey_timeout &&
+ cred->cr_ops->crkey_timeout(cred));
}
/*