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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-12-23 20:21:47 (GMT) |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-12-23 20:21:47 (GMT) |
commit | 707fb4b324371f1b4bea5eb29e39d265c66086ae (patch) | |
tree | fdd11b731073e0eda3966390c263e31af9ef5a5d /fs | |
parent | 515d86117724abe39d7d57d7ccc7cc5c44480529 (diff) | |
download | linux-fsl-qoriq-707fb4b324371f1b4bea5eb29e39d265c66086ae.tar.xz |
NFSv4: Clean up NFS4ERR_CB_PATH_DOWN error management...
Add a delegation cleanup phase to the state management loop, and do the
NFS4ERR_CB_PATH_DOWN recovery there.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/nfs/delegation.c | 14 | ||||
-rw-r--r-- | fs/nfs/delegation.h | 1 | ||||
-rw-r--r-- | fs/nfs/nfs4_fs.h | 2 | ||||
-rw-r--r-- | fs/nfs/nfs4state.c | 9 |
4 files changed, 16 insertions, 10 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index bc9d4f9..ff2c158 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -258,7 +258,7 @@ static int __nfs_inode_return_delegation(struct inode *inode, struct nfs_delegat /* * Return all delegations that have been marked for return */ -static void nfs_client_return_marked_delegations(struct nfs_client *clp) +void nfs_client_return_marked_delegations(struct nfs_client *clp) { struct nfs_delegation *delegation; struct inode *inode; @@ -342,15 +342,16 @@ void nfs_super_return_all_delegations(struct super_block *sb) nfs_client_return_marked_delegations(clp); } -static void nfs_client_return_all_delegations(struct nfs_client *clp) +static void nfs_client_mark_return_all_delegations(struct nfs_client *clp) { struct nfs_delegation *delegation; rcu_read_lock(); - list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) + list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) { set_bit(NFS_DELEGATION_RETURN, &delegation->flags); + set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state); + } rcu_read_unlock(); - nfs_client_return_marked_delegations(clp); } static int nfs_do_expire_all_delegations(void *ptr) @@ -363,7 +364,8 @@ static int nfs_do_expire_all_delegations(void *ptr) goto out; if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) goto out; - nfs_client_return_all_delegations(clp); + nfs_client_mark_return_all_delegations(clp); + nfs_client_return_marked_delegations(clp); out: nfs_put_client(clp); module_put_and_exit(0); @@ -392,7 +394,7 @@ void nfs_handle_cb_pathdown(struct nfs_client *clp) { if (clp == NULL) return; - nfs_client_return_all_delegations(clp); + nfs_client_mark_return_all_delegations(clp); } struct recall_threadargs { diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index c772bab..56f3eb5 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -40,6 +40,7 @@ struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs void nfs_super_return_all_delegations(struct super_block *sb); void nfs_expire_all_delegations(struct nfs_client *clp); void nfs_handle_cb_pathdown(struct nfs_client *clp); +void nfs_client_return_marked_delegations(struct nfs_client *clp); void nfs_delegation_mark_reclaim(struct nfs_client *clp); void nfs_delegation_reap_unclaimed(struct nfs_client *clp); diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 46cbc0c..84a4f52 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -43,7 +43,7 @@ enum nfs4_client_state { NFS4CLNT_LEASE_EXPIRED, NFS4CLNT_RECLAIM_REBOOT, NFS4CLNT_RECLAIM_NOGRACE, - NFS4CLNT_CB_PATH_DOWN, + NFS4CLNT_DELEGRETURN, }; /* diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 3d78706..2894502 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1027,7 +1027,7 @@ static void nfs4_recovery_handle_error(struct nfs_client *clp, int error) { switch (error) { case -NFS4ERR_CB_PATH_DOWN: - set_bit(NFS4CLNT_CB_PATH_DOWN, &clp->cl_state); + nfs_handle_cb_pathdown(clp); break; case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_LEASE_MOVED: @@ -1156,11 +1156,14 @@ static int reclaimer(void *ptr) nfs4_state_end_reclaim_nograce(clp); continue; } + + if (test_and_clear_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state)) { + nfs_client_return_marked_delegations(clp); + continue; + } break; } out: - if (test_and_clear_bit(NFS4CLNT_CB_PATH_DOWN, &clp->cl_state)) - nfs_handle_cb_pathdown(clp); nfs4_clear_recover_bit(clp); nfs_put_client(clp); module_put_and_exit(0); |