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nfsd41: SUPPATTR_EXCLCREAT attribute

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Return bitmask for supported EXCLUSIVE4_1 create attributes.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Benny Halevy 2009-04-03 08:29:14 +03:00 committed by J. Bruce Fields
parent 7e70570647
commit 8c18f2052e
3 changed files with 21 additions and 2 deletions
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7
fs/nfsd/nfs4xdr.c
View file

@ -2148,7 +2148,12 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
}
WRITE64(stat.ino);
}
BUG_ON(bmval2); /* FIXME: not implemented yet */
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
WRITE32(3);
WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD0);
WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD1);
WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD2);
}
*attrlenp = htonl((char *)p - (char *)attrlenp - 4);
*countp = p - buffer;

2
include/linux/nfs4.h
View file

@ -404,6 +404,8 @@ enum lock_type4 {
#define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
#define FATTR4_WORD0_LEASE_TIME (1UL << 10)
#define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
/* Mandatory in NFSv4.1 */
#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
/* Recommended Attributes */
#define FATTR4_WORD0_ACL (1UL << 12)

14
include/linux/nfsd/nfsd.h
View file

@ -375,7 +375,7 @@ extern struct timeval nfssvc_boot;
NFSD4_SUPPORTED_ATTRS_WORD1
#define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
NFSD4_SUPPORTED_ATTRS_WORD2
(NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT)
static inline u32 nfsd_suppattrs0(u32 minorversion)
{
@ -407,6 +407,18 @@ static inline u32 nfsd_suppattrs2(u32 minorversion)
| FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
#define NFSD_WRITEABLE_ATTRS_WORD2 0
#define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
NFSD_WRITEABLE_ATTRS_WORD0
/*
* we currently store the exclusive create verifier in the v_{a,m}time
* attributes so the client can't set these at create time using EXCLUSIVE4_1
*/
#define NFSD_SUPPATTR_EXCLCREAT_WORD1 \
(NFSD_WRITEABLE_ATTRS_WORD1 & \
~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET))
#define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
NFSD_WRITEABLE_ATTRS_WORD2
#endif /* CONFIG_NFSD_V4 */
#endif /* LINUX_NFSD_NFSD_H */