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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-07-22 09:54:29 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-08-04 22:35:40 -0400 |
| commit | c34fae003c79570b6c930b425fea3f0b7b1e7056 (patch) | |
| tree | 1ff4f0eb398bfa7d4eb2553651f31ce8981f45d9 /fs | |
| parent | 86dbd08b32838dc8940ccab2eebd47cf80224494 (diff) | |
| download | linux-c34fae003c79570b6c930b425fea3f0b7b1e7056.tar.gz linux-c34fae003c79570b6c930b425fea3f0b7b1e7056.tar.bz2 linux-c34fae003c79570b6c930b425fea3f0b7b1e7056.zip | |
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')
| -rw-r--r-- | fs/nfs/nfs4state.c | 9 |
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: |