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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-03 09:55:13 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-06 20:58:43 +0100 |
| commit | e761692381f294ea079d2e869fcd7c0afc79e394 (patch) | |
| tree | 34ebc00c001cddc94866936c460547d311e5dabb /fs/nfs/nfs4_fs.h | |
| parent | NFSv4: Make open_confirm() asynchronous too (diff) | |
| download | linux-e761692381f294ea079d2e869fcd7c0afc79e394.tar.xz linux-e761692381f294ea079d2e869fcd7c0afc79e394.zip | |
NFSv4: Make nfs4_state track O_RDWR, O_RDONLY and O_WRONLY separately
A closer reading of RFC3530 reveals that OPEN_DOWNGRADE must always
specify a access modes that have been the argument of a previous OPEN
operation.
IOW: doing OPEN(O_RDWR) and then OPEN_DOWNGRADE(O_WRONLY) is forbidden
unless the user called OPEN(O_WRONLY)
In order to fix that, we really need to track the three possible open
states separately.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4_fs.h')
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index b7f262dcb6e3..4ad5981f9375 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -182,8 +182,9 @@ struct nfs4_state { nfs4_stateid stateid; - unsigned int nreaders; - unsigned int nwriters; + unsigned int n_rdonly; + unsigned int n_wronly; + unsigned int n_rdwr; int state; /* State on the server (R,W, or RW) */ atomic_t count; }; |