From cb7a8384dc0202d5490302b7e948ede498aad720 Mon Sep 17 00:00:00 2001 From: Anna Schumaker Date: Tue, 11 Sep 2018 16:23:46 -0400 Subject: [PATCH] NFS: Split out the body of nfs4_reclaim_open_state() Moving all of this into a new function removes the need for cramped indentation, making the code overall easier to look at. I also take this chance to switch copy recovery over to using nfs4_stateid_match_other() Signed-off-by: Anna Schumaker Signed-off-by: Trond Myklebust --- fs/nfs/nfs4state.c | 83 ++++++++++++++++++++++++++-------------------- 1 file changed, 47 insertions(+), 36 deletions(-) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 6ca3bd076073..8c7fe222f4c4 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1549,10 +1549,51 @@ static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_ return status; } +static int __nfs4_reclaim_open_state(struct nfs4_state_owner *sp, struct nfs4_state *state, + const struct nfs4_state_recovery_ops *ops) +{ + struct nfs4_lock_state *lock; + int status; + + status = ops->recover_open(sp, state); + if (status < 0) + return status; + + status = nfs4_reclaim_locks(state, ops); + if (status < 0) + return status; + + if (!test_bit(NFS_DELEGATED_STATE, &state->flags)) { + spin_lock(&state->state_lock); + list_for_each_entry(lock, &state->lock_states, ls_locks) { + if (!test_bit(NFS_LOCK_INITIALIZED, &lock->ls_flags)) + pr_warn_ratelimited("NFS: %s: Lock reclaim failed!\n", __func__); + } + spin_unlock(&state->state_lock); + } + +#ifdef CONFIG_NFS_V4_2 + if (test_bit(NFS_CLNT_DST_SSC_COPY_STATE, &state->flags)) { + struct nfs4_copy_state *copy; + spin_lock(&sp->so_server->nfs_client->cl_lock); + list_for_each_entry(copy, &sp->so_server->ss_copies, copies) { + if (nfs4_stateid_match_other(&state->stateid, ©->parent_state->stateid)) + continue; + copy->flags = 1; + complete(©->completion); + break; + } + spin_unlock(&sp->so_server->nfs_client->cl_lock); + } +#endif /* CONFIG_NFS_V4_2 */ + + clear_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags); + return status; +} + static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs4_state_recovery_ops *ops) { struct nfs4_state *state; - struct nfs4_lock_state *lock; int status = 0; /* Note: we rely on the sp->so_states list being ordered @@ -1575,43 +1616,13 @@ static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs continue; refcount_inc(&state->count); spin_unlock(&sp->so_lock); - status = ops->recover_open(sp, state); + status = __nfs4_reclaim_open_state(sp, state, ops); if (status >= 0) { - status = nfs4_reclaim_locks(state, ops); - if (status >= 0) { - if (!test_bit(NFS_DELEGATED_STATE, &state->flags)) { - spin_lock(&state->state_lock); - list_for_each_entry(lock, &state->lock_states, ls_locks) { - if (!test_bit(NFS_LOCK_INITIALIZED, &lock->ls_flags)) - pr_warn_ratelimited("NFS: " - "%s: Lock reclaim " - "failed!\n", __func__); - } - spin_unlock(&state->state_lock); - } - clear_bit(NFS_STATE_RECLAIM_NOGRACE, - &state->flags); -#ifdef CONFIG_NFS_V4_2 - if (test_bit(NFS_CLNT_DST_SSC_COPY_STATE, &state->flags)) { - struct nfs4_copy_state *copy; - - spin_lock(&sp->so_server->nfs_client->cl_lock); - list_for_each_entry(copy, &sp->so_server->ss_copies, copies) { - if (memcmp(&state->stateid.other, ©->parent_state->stateid.other, NFS4_STATEID_SIZE)) - continue; - copy->flags = 1; - complete(©->completion); - printk("AGLO: server rebooted waking up the copy\n"); - break; - } - spin_unlock(&sp->so_server->nfs_client->cl_lock); - } -#endif /* CONFIG_NFS_V4_2 */ - nfs4_put_open_state(state); - spin_lock(&sp->so_lock); - goto restart; - } + nfs4_put_open_state(state); + spin_lock(&sp->so_lock); + goto restart; } + switch (status) { default: printk(KERN_ERR "NFS: %s: unhandled error %d\n",