From: Jeff Layton <[email protected]>
RFC 3530 says:
If the server uses an attribute to store the exclusive
create verifier, it will signify which attribute by setting the
appropriate bit in the attribute mask that is returned in the
results.
Linux uses the atime and mtime to store the verifier, but sends a zeroed
out bitmask back to the client. This patch makes sure that we set the
correct bits in the bitmask in this situation.
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
---
fs/nfsd/nfs4proc.c | 10 +++++++++-
fs/nfsd/vfs.c | 5 ++++-
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 3c62712..29b7e63 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -100,7 +100,15 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o
status = nfsd_create_v3(rqstp, current_fh, open->op_fname.data,
open->op_fname.len, &open->op_iattr,
&resfh, open->op_createmode,
- (u32 *)open->op_verf.data, &open->op_truncate, &created);
+ (u32 *)open->op_verf.data,
+ &open->op_truncate, &created);
+
+ /* If we ever decide to use different attrs to store the
+ * verifier in nfsd_create_v3, then we'll need to change this
+ */
+ if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0)
+ open->op_bmval[1] |= (FATTR4_WORD1_TIME_ACCESS |
+ FATTR4_WORD1_TIME_MODIFY);
} else {
status = nfsd_lookup(rqstp, current_fh,
open->op_fname.data, open->op_fname.len, &resfh);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ee96a89..a0c2b25 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1309,7 +1309,10 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (createmode == NFS3_CREATE_EXCLUSIVE) {
/* solaris7 gets confused (bugid 4218508) if these have
- * the high bit set, so just clear the high bits.
+ * the high bit set, so just clear the high bits. If this is
+ * ever changed to use different attrs for storing the
+ * verifier, then do_open_lookup() will also need to be fixed
+ * accordingly.
*/
v_mtime = verifier[0]&0x7fffffff;
v_atime = verifier[1]&0x7fffffff;
--
1.5.3.rc2
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