Revert "nfsd4: distinguish expired from stale stateids"
This reverts commit 78155ed75f470710f2aecb3e75e3d97107ba8374.
We're depending here on the boot time that we use to generate the
stateid being monotonic, but get_seconds() is not necessarily.
We still depend at least on boot_time being different every time, but
that is a safer bet.
We have a few reports of errors that might be explained by this problem,
though we haven't been able to confirm any of them.
But the minor gain of distinguishing expired from stale errors seems not
worth the risk.
Conflicts:
fs/nfsd/nfs4state.c
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 296eded..12f7109 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -190,7 +190,7 @@
dp->dl_vfs_file = stp->st_vfs_file;
dp->dl_type = type;
dp->dl_ident = cb->cb_ident;
- dp->dl_stateid.si_boot = get_seconds();
+ dp->dl_stateid.si_boot = boot_time;
dp->dl_stateid.si_stateownerid = current_delegid++;
dp->dl_stateid.si_fileid = 0;
dp->dl_stateid.si_generation = 0;
@@ -1884,7 +1884,7 @@
stp->st_stateowner = sop;
get_nfs4_file(fp);
stp->st_file = fp;
- stp->st_stateid.si_boot = get_seconds();
+ stp->st_stateid.si_boot = boot_time;
stp->st_stateid.si_stateownerid = sop->so_id;
stp->st_stateid.si_fileid = fp->fi_id;
stp->st_stateid.si_generation = 0;
@@ -2733,39 +2733,11 @@
static int
STALE_STATEID(stateid_t *stateid)
{
- if (time_after((unsigned long)boot_time,
- (unsigned long)stateid->si_boot)) {
- dprintk("NFSD: stale stateid " STATEID_FMT "!\n",
- STATEID_VAL(stateid));
- return 1;
- }
- return 0;
-}
-
-static int
-EXPIRED_STATEID(stateid_t *stateid)
-{
- if (time_before((unsigned long)boot_time,
- ((unsigned long)stateid->si_boot)) &&
- time_before((unsigned long)(stateid->si_boot + nfsd4_lease), get_seconds())) {
- dprintk("NFSD: expired stateid " STATEID_FMT "!\n",
- STATEID_VAL(stateid));
- return 1;
- }
- return 0;
-}
-
-static __be32
-stateid_error_map(stateid_t *stateid)
-{
- if (STALE_STATEID(stateid))
- return nfserr_stale_stateid;
- if (EXPIRED_STATEID(stateid))
- return nfserr_expired;
-
- dprintk("NFSD: bad stateid " STATEID_FMT "!\n",
+ if (stateid->si_boot == boot_time)
+ return 0;
+ dprintk("NFSD: stale stateid " STATEID_FMT "!\n",
STATEID_VAL(stateid));
- return nfserr_bad_stateid;
+ return 1;
}
static inline int
@@ -2889,10 +2861,8 @@
status = nfserr_bad_stateid;
if (is_delegation_stateid(stateid)) {
dp = find_delegation_stateid(ino, stateid);
- if (!dp) {
- status = stateid_error_map(stateid);
+ if (!dp)
goto out;
- }
status = check_stateid_generation(stateid, &dp->dl_stateid,
flags);
if (status)
@@ -2905,10 +2875,8 @@
*filpp = dp->dl_vfs_file;
} else { /* open or lock stateid */
stp = find_stateid(stateid, flags);
- if (!stp) {
- status = stateid_error_map(stateid);
+ if (!stp)
goto out;
- }
if (nfs4_check_fh(current_fh, stp))
goto out;
if (!stp->st_stateowner->so_confirmed)
@@ -2980,7 +2948,7 @@
*/
sop = search_close_lru(stateid->si_stateownerid, flags);
if (sop == NULL)
- return stateid_error_map(stateid);
+ return nfserr_bad_stateid;
*sopp = sop;
goto check_replay;
}
@@ -3247,10 +3215,8 @@
if (!is_delegation_stateid(stateid))
goto out;
dp = find_delegation_stateid(inode, stateid);
- if (!dp) {
- status = stateid_error_map(stateid);
+ if (!dp)
goto out;
- }
status = check_stateid_generation(stateid, &dp->dl_stateid, flags);
if (status)
goto out;
@@ -3476,7 +3442,7 @@
stp->st_stateowner = sop;
get_nfs4_file(fp);
stp->st_file = fp;
- stp->st_stateid.si_boot = get_seconds();
+ stp->st_stateid.si_boot = boot_time;
stp->st_stateid.si_stateownerid = sop->so_id;
stp->st_stateid.si_fileid = fp->fi_id;
stp->st_stateid.si_generation = 0;