diff options
author | Mi Jinlong <mijinlong@cn.fujitsu.com> | 2011-04-20 17:06:25 +0800 |
---|---|---|
committer | J. Bruce Fields <bfields@redhat.com> | 2011-04-29 20:47:52 -0400 |
commit | ac6721a13e5b1a90728e790600f827a5e5f5da2f (patch) | |
tree | f39f1faaaa4059956d8fde5fbb29fc5500d1e513 | |
parent | 68d93184352f2e723f135b0a9bad93b58f9d120b (diff) | |
download | linux-ac6721a13e5b1a90728e790600f827a5e5f5da2f.tar.bz2 |
nfsd41: make sure nfs server process OPEN with EXCLUSIVE4_1 correctly
The NFS server uses nfsd_create_v3 to handle EXCLUSIVE4_1 opens, but
that function is not prepared to handle them.
Rename nfsd_create_v3() to do_nfsd_create(), and add handling of
EXCLUSIVE4_1.
Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
-rw-r--r-- | fs/nfsd/nfs3proc.c | 2 | ||||
-rw-r--r-- | fs/nfsd/nfs4proc.c | 4 | ||||
-rw-r--r-- | fs/nfsd/vfs.c | 20 | ||||
-rw-r--r-- | fs/nfsd/vfs.h | 2 |
4 files changed, 20 insertions, 8 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index 2247fc91d5e9..9095f3c21df9 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -245,7 +245,7 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, } /* Now create the file and set attributes */ - nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len, + nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len, attr, newfhp, argp->createmode, argp->verf, NULL, NULL); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index ad32568a1aa7..3a6dbd70b34b 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -196,9 +196,9 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o /* * Note: create modes (UNCHECKED,GUARDED...) are the same - * in NFSv4 as in v3. + * in NFSv4 as in v3 except EXCLUSIVE4_1. */ - status = nfsd_create_v3(rqstp, current_fh, open->op_fname.data, + status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, open->op_fname.len, &open->op_iattr, &resfh, open->op_createmode, (u32 *)open->op_verf.data, diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index e53313972c30..389e45ad200b 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1337,11 +1337,18 @@ out_nfserr: } #ifdef CONFIG_NFSD_V3 + +static inline int nfsd_create_is_exclusive(int createmode) +{ + return createmode == NFS3_CREATE_EXCLUSIVE + || createmode == NFS4_CREATE_EXCLUSIVE4_1; +} + /* - * NFSv3 version of nfsd_create + * NFSv3 and NFSv4 version of nfsd_create */ __be32 -nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, +do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, char *fname, int flen, struct iattr *iap, struct svc_fh *resfhp, int createmode, u32 *verifier, int *truncp, int *created) @@ -1386,7 +1393,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, if (err) goto out; - if (createmode == NFS3_CREATE_EXCLUSIVE) { + if (nfsd_create_is_exclusive(createmode)) { /* solaris7 gets confused (bugid 4218508) if these have * the high bit set, so just clear the high bits. If this is * ever changed to use different attrs for storing the @@ -1427,6 +1434,11 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, && dchild->d_inode->i_atime.tv_sec == v_atime && dchild->d_inode->i_size == 0 ) break; + case NFS4_CREATE_EXCLUSIVE4_1: + if ( dchild->d_inode->i_mtime.tv_sec == v_mtime + && dchild->d_inode->i_atime.tv_sec == v_atime + && dchild->d_inode->i_size == 0 ) + goto set_attr; /* fallthru */ case NFS3_CREATE_GUARDED: err = nfserr_exist; @@ -1445,7 +1457,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, nfsd_check_ignore_resizing(iap); - if (createmode == NFS3_CREATE_EXCLUSIVE) { + if (nfsd_create_is_exclusive(createmode)) { /* Cram the verifier into atime/mtime */ iap->ia_valid = ATTR_MTIME|ATTR_ATIME | ATTR_MTIME_SET|ATTR_ATIME_SET; diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 4d2509f766d4..e0bbac04d1dd 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -58,7 +58,7 @@ __be32 nfsd_create(struct svc_rqst *, struct svc_fh *, int type, dev_t rdev, struct svc_fh *res); #ifdef CONFIG_NFSD_V3 __be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *); -__be32 nfsd_create_v3(struct svc_rqst *, struct svc_fh *, +__be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *, char *name, int len, struct iattr *attrs, struct svc_fh *res, int createmode, u32 *verifier, int *truncp, int *created); |