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Commit cf61eb26 authored May 29, 2018 by Trond Myklebust

NFSv4: Always clear the pNFS layout when handling ESTALE

If we get an ESTALE error in response to an RPC call operating on the
file on the MDS, we should immediately cancel the layout for that file.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

parent d6889480

fs/nfs/nfs42proc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -370,6 +370,10 @@ nfs42_layoutstat_done(struct rpc_task task, void calldata)
		switch (task->tk_status) {
		case 0:
		break;
		case -NFS4ERR_BADHANDLE:
		case -ESTALE:
		pnfs_destroy_layout(NFS_I(inode));
		break;
		case -NFS4ERR_EXPIRED:
		case -NFS4ERR_ADMIN_REVOKED:
		case -NFS4ERR_DELEG_REVOKED:

fs/nfs/nfs4proc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -407,6 +407,11 @@ static int nfs4_do_handle_exception(struct nfs_server *server,
		switch(errorcode) {
		case 0:
		return 0;
		case -NFS4ERR_BADHANDLE:
		case -ESTALE:
		if (inode != NULL && S_ISREG(inode->i_mode))
		pnfs_destroy_layout(NFS_I(inode));
		break;
		case -NFS4ERR_DELEG_REVOKED:
		case -NFS4ERR_ADMIN_REVOKED:
		case -NFS4ERR_EXPIRED: