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authorTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-22 09:54:29 +0100
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-08-04 22:35:40 -0400
commitc34fae003c79570b6c930b425fea3f0b7b1e7056 (patch)
tree1ff4f0eb398bfa7d4eb2553651f31ce8981f45d9 /fs/nfs
parent86dbd08b32838dc8940ccab2eebd47cf80224494 (diff)
downloadlinux-stericsson-c34fae003c79570b6c930b425fea3f0b7b1e7056.tar.gz
NFSv4: When recovering state fails with EAGAIN, retry the same recovery
If the server returns with EAGAIN when we're trying to recover from a server reboot, we currently delay for 1 second, but then mark the stateid as needing recovery after the grace period has expired. Instead, we should just retry the same recovery process immediately after the 1 second delay. Break out of the loop after 10 retries. Fixes: 35a61606a612 ("NFS: Reduce indentation of the switch statement...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4state.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index a71a61e5fe2c..d03b9cf42bd0 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1607,6 +1607,7 @@ static int __nfs4_reclaim_open_state(struct nfs4_state_owner *sp, struct nfs4_st
static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs4_state_recovery_ops *ops)
{
struct nfs4_state *state;
+ unsigned int loop = 0;
int status = 0;
/* Note: we rely on the sp->so_states list being ordered
@@ -1633,8 +1634,10 @@ restart:
switch (status) {
default:
- if (status >= 0)
+ if (status >= 0) {
+ loop = 0;
break;
+ }
printk(KERN_ERR "NFS: %s: unhandled error %d\n", __func__, status);
/* Fall through */
case -ENOENT:
@@ -1648,6 +1651,10 @@ restart:
break;
case -EAGAIN:
ssleep(1);
+ if (loop++ < 10) {
+ set_bit(ops->state_flag_bit, &state->flags);
+ break;
+ }
/* Fall through */
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_STALE_STATEID: