From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
This reverts commit a85857633b04d57f4524cca0a2bfaf87b2543f9f.
We're still factoring ctime into our change attribute even in the
IS_I_VERSION case. If someone sets the system time backwards, a client
could see the change attribute go backwards. Maybe we can just say
"well, don't do that", but there's some question whether that's good
enough, or whether we need a better guarantee.
Also, the client still isn't actually using the attribute.
While we're still figuring this out, let's just stop returning this
attribute.
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
---
fs/nfsd/nfs4xdr.c | 10 ----------
fs/nfsd/nfsd.h | 1 -
include/linux/nfs4.h | 8 --------
3 files changed, 19 deletions(-)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 18c912930947..c33838caf8c6 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3183,16 +3183,6 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out;
}
- if (bmval2 & FATTR4_WORD2_CHANGE_ATTR_TYPE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- if (IS_I_VERSION(d_inode(dentry)))
- *p++ = cpu_to_be32(NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR);
- else
- *p++ = cpu_to_be32(NFS4_CHANGE_TYPE_IS_TIME_METADATA);
- }
-
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
status = nfsd4_encode_security_label(xdr, rqstp, context,
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index cb742e17e04a..40cb40ac0a65 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -387,7 +387,6 @@ void nfsd_lockd_shutdown(void);
#define NFSD4_2_SUPPORTED_ATTRS_WORD2 \
(NFSD4_1_SUPPORTED_ATTRS_WORD2 | \
- FATTR4_WORD2_CHANGE_ATTR_TYPE | \
FATTR4_WORD2_MODE_UMASK | \
NFSD4_2_SECURITY_ATTRS | \
FATTR4_WORD2_XATTR_SUPPORT)
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 9dc7eeac924f..5b4c67c91f56 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -385,13 +385,6 @@ enum lock_type4 {
NFS4_WRITEW_LT = 4
};
-enum change_attr_type4 {
- NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR = 0,
- NFS4_CHANGE_TYPE_IS_VERSION_COUNTER = 1,
- NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS = 2,
- NFS4_CHANGE_TYPE_IS_TIME_METADATA = 3,
- NFS4_CHANGE_TYPE_IS_UNDEFINED = 4
-};
/* Mandatory Attributes */
#define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
@@ -459,7 +452,6 @@ enum change_attr_type4 {
#define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
#define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
#define FATTR4_WORD2_CLONE_BLKSIZE (1UL << 13)
-#define FATTR4_WORD2_CHANGE_ATTR_TYPE (1UL << 15)
#define FATTR4_WORD2_SECURITY_LABEL (1UL << 16)
#define FATTR4_WORD2_MODE_UMASK (1UL << 17)
#define FATTR4_WORD2_XATTR_SUPPORT (1UL << 18)
--
2.28.0
