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nfsd4: more robust ignoring of WANT bits in OPEN 

Mask out the WANT bits right at the start instead of on each use.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-10-10 17:44:19 -04:00
parent a084daf512
commit b6d2f1ca3c
2 changed files with 5 additions and 3 deletions
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3
fs/nfsd/nfs4proc.c
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@ -315,6 +315,9 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
return nfserr_inval;
/* We don't yet support WANT bits: */
open->op_share_access &= NFS4_SHARE_ACCESS_MASK;
/*
* RFC5661 18.51.3
* Before RECLAIM_COMPLETE done, server should deny new lock

5
fs/nfsd/nfs4state.c
View File

@ -2345,8 +2345,7 @@ static inline __be32 init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_
stp->st_file = fp;
stp->st_access_bmap = 0;
stp->st_deny_bmap = 0;
__set_bit(open->op_share_access & ~NFS4_SHARE_WANT_MASK,
&stp->st_access_bmap);
__set_bit(open->op_share_access, &stp->st_access_bmap);
__set_bit(open->op_share_deny, &stp->st_deny_bmap);
stp->st_openstp = NULL;
return nfs_ok;
@ -2690,7 +2689,7 @@ nfsd4_truncate(struct svc_rqst *rqstp, struct svc_fh *fh,
static __be32
nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *cur_fh, struct nfs4_ol_stateid *stp, struct nfsd4_open *open)
{
u32 op_share_access = open->op_share_access & ~NFS4_SHARE_WANT_MASK;
u32 op_share_access = open->op_share_access;
bool new_access;
__be32 status;