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authorJ. Bruce Fields <bfields@redhat.com>2020-11-30 17:46:18 -0500
committerChuck Lever <chuck.lever@oracle.com>2020-12-09 09:39:38 -0500
commit1631087ba8727db03c0ab2815dc06dc25d962b80 (patch)
tree102d7f2595c3ef9f484a81fe057f0d0e83882f0a /fs/nfsd
parentnfsd4: don't query change attribute in v2/v3 case (diff)
downloadlinux-dev-1631087ba8727db03c0ab2815dc06dc25d962b80.tar.xz
linux-dev-1631087ba8727db03c0ab2815dc06dc25d962b80.zip
Revert "nfsd4: support change_attr_type attribute"
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@redhat.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4xdr.c10
-rw-r--r--fs/nfsd/nfsd.h1
2 files changed, 0 insertions, 11 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 7f650fa47006..45ee6b12ce5b 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3311,16 +3311,6 @@ out_acl:
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 7907de3f2ee6..d63cf8196fed 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -395,7 +395,6 @@ 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)