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| author | Arnd Bergmann <arnd@arndb.de> | 2017-10-19 12:04:11 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2017-11-07 16:44:00 -0500 |
| commit | 256a89fa3deb6bb699b794e5bf00a72e2fe558b0 (patch) | |
| tree | 7fae8c6083d12226d1a4dd16857be83b750fabf1 /fs/nfsd/nfs3xdr.c | |
| parent | 818a34eb266449b1c89242596039a5e44c9be04c (diff) | |
| download | lwn-256a89fa3deb6bb699b794e5bf00a72e2fe558b0.tar.gz lwn-256a89fa3deb6bb699b794e5bf00a72e2fe558b0.zip | |
nfds: avoid gettimeofday for nfssvc_boot time
do_gettimeofday() is deprecated and we should generally use time64_t
based functions instead.
In case of nfsd, all three users of nfssvc_boot only use the initial
time as a unique token, and are not affected by it overflowing, so they
are not affected by the y2038 overflow.
This converts the structure to timespec64 anyway and adds comments
to all uses, to document that we have thought about it and avoid
having to look at it again.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs3xdr.c')
| -rw-r--r-- | fs/nfsd/nfs3xdr.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index bf444b664011..3579e0ae1131 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -747,8 +747,9 @@ nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p) if (resp->status == 0) { *p++ = htonl(resp->count); *p++ = htonl(resp->committed); - *p++ = htonl(nn->nfssvc_boot.tv_sec); - *p++ = htonl(nn->nfssvc_boot.tv_usec); + /* unique identifier, y2038 overflow can be ignored */ + *p++ = htonl((u32)nn->nfssvc_boot.tv_sec); + *p++ = htonl(nn->nfssvc_boot.tv_nsec); } return xdr_ressize_check(rqstp, p); } @@ -1118,8 +1119,9 @@ nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p) p = encode_wcc_data(rqstp, p, &resp->fh); /* Write verifier */ if (resp->status == 0) { - *p++ = htonl(nn->nfssvc_boot.tv_sec); - *p++ = htonl(nn->nfssvc_boot.tv_usec); + /* unique identifier, y2038 overflow can be ignored */ + *p++ = htonl((u32)nn->nfssvc_boot.tv_sec); + *p++ = htonl(nn->nfssvc_boot.tv_nsec); } return xdr_ressize_check(rqstp, p); } |