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-rw-r--r--include/linux/nfs4.h2
-rw-r--r--include/linux/nfsd/nfsd.h14
2 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 29ed600e193b..ec3cd49b04f5 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -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)
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 69ca788f8fc5..0ec4d142c503 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -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 */