[PATCH nfsd-next] nfsd: fix uninitialised slot info when a request is retried

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



A recent patch moved the assignment of seq->maxslots from before the
test for a resent request (which ends with a goto) to after, resulting
in it not being run in that case.  This results in the server returning
bogus "high slot id" and "target high slot id" values.

The assignments to ->maxslots and ->target_maxslots need to be *after*
the out: label so that the correct values are returned in replies to
requests that are served from cache.

Fixes: 60aa6564317d ("nfsd: allocate new session-based DRC slots on demand.")
Signed-off-by: NeilBrown <neilb@xxxxxxx>
---

Feel free to squash this into the offending patch, though subsequent
patches will need to be refreshed carefully.  Or just add it as-is.
Thanks.

 fs/nfsd/nfs4state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index cc819b8e8acd..b42e2ab7a042 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4460,10 +4460,11 @@ nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 			}
 		} while (slot && --cnt > 0);
 	}
+
+out:
 	seq->maxslots = max(session->se_target_maxslots, seq->maxslots);
 	seq->target_maxslots = session->se_target_maxslots;
 
-out:
 	switch (clp->cl_cb_state) {
 	case NFSD4_CB_DOWN:
 		seq->status_flags = SEQ4_STATUS_CB_PATH_DOWN;

base-commit: c1d6e5f7635895b5e9b2e4a9e4b7cdb9cc07eaf7
-- 
2.47.1






[Index of Archives]     [Linux Filesystem Development]     [Linux USB Development]     [Linux Media Development]     [Video for Linux]     [Linux NILFS]     [Linux Audio Users]     [Yosemite Info]     [Linux SCSI]

  Powered by Linux