diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-10-31 15:53:13 +0100 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2019-12-19 17:46:08 -0500 |
| commit | 9cc7680149b238223bbb8bcf3272f6bd47f1fbfb (patch) | |
| tree | ef10cbb50010ca6cf0ab07332b95fe88391c07e3 /fs/nfsd/nfs4state.c | |
| parent | e4598e38ee7e708d751081799f27d3f11a3e687d (diff) | |
nfsd: make 'boot_time' 64-bit wide
The local boot time variable gets truncated to time_t at the moment,
which can lead to slightly odd behavior on 32-bit architectures.
Use ktime_get_real_seconds() instead of get_seconds() to always
get a 64-bit result, and keep it that way wherever possible.
It still gets truncated in a few places:
- When assigning to cl_clientid.cl_boot, this is already documented
and is only used as a unique identifier.
- In clients_still_reclaiming(), the truncation is to 'unsigned long'
in order to use the 'time_before() helper.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 27e1c12618b8..a178374bacd5 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -748,7 +748,7 @@ static int nfs4_init_cp_state(struct nfsd_net *nn, copy_stateid_t *stid, { int new_id; - stid->stid.si_opaque.so_clid.cl_boot = nn->boot_time; + stid->stid.si_opaque.so_clid.cl_boot = (u32)nn->boot_time; stid->stid.si_opaque.so_clid.cl_id = nn->s2s_cp_cl_id; stid->sc_type = sc_type; @@ -1911,7 +1911,7 @@ STALE_CLIENTID(clientid_t *clid, struct nfsd_net *nn) */ if (clid->cl_boot == (u32)nn->boot_time) return 0; - dprintk("NFSD stale clientid (%08x/%08x) boot_time %08lx\n", + dprintk("NFSD stale clientid (%08x/%08x) boot_time %08llx\n", clid->cl_boot, clid->cl_id, nn->boot_time); return 1; } @@ -2271,7 +2271,7 @@ static void gen_confirm(struct nfs4_client *clp, struct nfsd_net *nn) static void gen_clid(struct nfs4_client *clp, struct nfsd_net *nn) { - clp->cl_clientid.cl_boot = nn->boot_time; + clp->cl_clientid.cl_boot = (u32)nn->boot_time; clp->cl_clientid.cl_id = nn->clientid_counter++; gen_confirm(clp, nn); } @@ -5233,9 +5233,9 @@ nfsd4_end_grace(struct nfsd_net *nn) */ static bool clients_still_reclaiming(struct nfsd_net *nn) { - unsigned long now = get_seconds(); - unsigned long double_grace_period_end = nn->boot_time + - 2 * nn->nfsd4_lease; + unsigned long now = (unsigned long) ktime_get_real_seconds(); + unsigned long double_grace_period_end = (unsigned long)nn->boot_time + + 2 * (unsigned long)nn->nfsd4_lease; if (nn->track_reclaim_completes && atomic_read(&nn->nr_reclaim_complete) == @@ -7792,7 +7792,7 @@ static int nfs4_state_create_net(struct net *net) INIT_LIST_HEAD(&nn->sessionid_hashtbl[i]); nn->conf_name_tree = RB_ROOT; nn->unconf_name_tree = RB_ROOT; - nn->boot_time = get_seconds(); + nn->boot_time = ktime_get_real_seconds(); nn->grace_ended = false; nn->nfsd4_manager.block_opens = true; INIT_LIST_HEAD(&nn->nfsd4_manager.list); |