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| author | Andy Adamson <andros@netapp.com> | 2014-01-29 16:34:38 (GMT) |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-04-03 08:32:19 (GMT) |
| commit | 96ab13e36b6c1496193063b28fc6af3c722ef618 (patch) | |
| tree | 444ed579d7f586705b189b332e6f06967006bf0b /fs/nfs | |
| parent | fca36cf65b30ce5abb69284ba5404eb4d03f9545 (diff) | |
| download | linux-fsl-qoriq-96ab13e36b6c1496193063b28fc6af3c722ef618.tar.xz | |
NFSv4.1 free slot before resending I/O to MDS
commit f9c96fcc501a43dbc292b17fc0ded4b54e63b79d upstream.
Fix a dynamic session slot leak where a slot is preallocated and I/O is
resent through the MDS.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4filelayout.c | 10 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 3 |
3 files changed, 11 insertions, 3 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 28842ab..fdfd591 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -249,6 +249,7 @@ static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *ser extern int nfs41_setup_sequence(struct nfs4_session *session, struct nfs4_sequence_args *args, struct nfs4_sequence_res *res, struct rpc_task *task); +extern int nfs41_sequence_done(struct rpc_task *, struct nfs4_sequence_res *); extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *); extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *); extern int nfs4_proc_get_lease_time(struct nfs_client *clp, diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 6e245d1..394b0a0 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -335,8 +335,11 @@ static void filelayout_read_call_done(struct rpc_task *task, void *data) dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status); if (test_bit(NFS_IOHDR_REDO, &rdata->header->flags) && - task->tk_status == 0) + task->tk_status == 0) { + if (rdata->res.seq_res.sr_slot != NULL) + nfs41_sequence_done(task, &rdata->res.seq_res); return; + } /* Note this may cause RPC to be resent */ rdata->header->mds_ops->rpc_call_done(task, data); @@ -442,8 +445,11 @@ static void filelayout_write_call_done(struct rpc_task *task, void *data) struct nfs_write_data *wdata = data; if (test_bit(NFS_IOHDR_REDO, &wdata->header->flags) && - task->tk_status == 0) + task->tk_status == 0) { + if (wdata->res.seq_res.sr_slot != NULL) + nfs41_sequence_done(task, &wdata->res.seq_res); return; + } /* Note this may cause RPC to be resent */ wdata->header->mds_ops->rpc_call_done(task, data); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 9edb753..bcd42fb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -585,7 +585,7 @@ out_unlock: nfs41_server_notify_highest_slotid_update(session->clp); } -static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) +int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) { struct nfs4_session *session; struct nfs4_slot *slot; @@ -685,6 +685,7 @@ out_retry: rpc_delay(task, NFS4_POLL_RETRY_MAX); return 0; } +EXPORT_SYMBOL_GPL(nfs41_sequence_done); static int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) |