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| author | Bryan Schumaker <bjschuma@netapp.com> | 2013-04-19 16:09:37 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-04-19 17:21:07 -0400 |
| commit | 042ad0b398ea4e937e38324dd096bdf9d2c495f7 (patch) | |
| tree | a08f9ffb86378ebf11609f6fbb2868caabd81c54 | |
| parent | 549b19cc9f31e8fdda317625d564bac0052a3328 (diff) | |
| download | linux-3.10-042ad0b398ea4e937e38324dd096bdf9d2c495f7.tar.gz linux-3.10-042ad0b398ea4e937e38324dd096bdf9d2c495f7.tar.bz2 linux-3.10-042ad0b398ea4e937e38324dd096bdf9d2c495f7.zip | |
nfs: Send atime and mtime as a 64bit value
RFC 3530 says that the seconds value of a nfstime4 structure is a 64bit
value, but we are instead sending a 32-bit 0 and then a 32bit conversion
of the 64bit Linux value. This means that if we try to set atime to a
value before the epoch (touch -t 196001010101) the client will only send
part of the new value due to lost precision.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index fef71cbec50..c2cbf0d90a3 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1058,8 +1058,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const if (iap->ia_valid & ATTR_ATIME_SET) { bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); - *p++ = cpu_to_be32(0); - *p++ = cpu_to_be32(iap->ia_atime.tv_sec); + p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); } else if (iap->ia_valid & ATTR_ATIME) { @@ -1069,8 +1068,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const if (iap->ia_valid & ATTR_MTIME_SET) { bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); - *p++ = cpu_to_be32(0); - *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); + p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); } else if (iap->ia_valid & ATTR_MTIME) { |