[PATCH] nfsd4: add open state code for CLAIM_DELEGATE_CUR
State logic for OPEN with claim type CLAIM_DELEGATE_CUR, which the NFSv4
client uses to report local OPENs on a delegated file back to the NFSv4
server.
nfs4_check_deleg() performs input delegation stateid lookup and sanity check.
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3791c9d..8ac0c9a 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1547,22 +1547,28 @@
return NULL;
}
-static void
+static int
nfs4_check_deleg(struct nfs4_file *fp, struct nfsd4_open *open,
struct nfs4_delegation **dp)
{
int flags;
- int status;
+ int status = nfserr_bad_stateid;
*dp = find_delegation_file(fp, &open->op_delegate_stateid);
if (*dp == NULL)
- return;
+ goto out;
flags = open->op_share_access == NFS4_SHARE_ACCESS_READ ?
RD_STATE : WR_STATE;
status = nfs4_check_delegmode(*dp, flags);
if (status)
*dp = NULL;
- return;
+out:
+ if (open->op_claim_type != NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ return nfs_ok;
+ if (status)
+ return status;
+ open->op_stateowner->so_confirmed = 1;
+ return nfs_ok;
}
static int
@@ -1760,8 +1766,13 @@
if (fp) {
if ((status = nfs4_check_open(fp, open, &stp)))
goto out;
- nfs4_check_deleg(fp, open, &dp);
+ status = nfs4_check_deleg(fp, open, &dp);
+ if (status)
+ goto out;
} else {
+ status = nfserr_bad_stateid;
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ goto out;
status = nfserr_resource;
fp = alloc_init_file(ino);
if (fp == NULL)