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nfs41: call free slot from nfs4_restart_rpc

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nfs41_sequence_free_slot can be called multiple times on SEQUENCE operation
errors.
No reason to inline nfs4_restart_rpc

Reported-by: Trond Myklebust <trond.myklebust@netapp.com>

nfs_writeback_done and nfs_readpage_retry call nfs4_restart_rpc outside the
error handler, and the slot is not freed prior to restarting in the rpc_prepare
state during session reset.

Fix this by moving the call to nfs41_sequence_free_slot from the error
path of nfs41_sequence_done into nfs4_restart_rpc, and by removing the test
for NFS4CLNT_SESSION_SETUP.
Always free slot and goto the rpc prepare state on async errors.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson 2009-12-04 15:55:29 -05:00 • committed by Trond Myklebust
parent 1d9ddde94a
commit e608e79f1b
5 changed files with 32 additions and 23 deletions
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4
fs/nfs/unlink.c
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@ -81,9 +81,11 @@ static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
{
struct nfs_unlinkdata *data = calldata;
struct inode *dir = data->dir;
struct nfs_removeres *res = task->tk_msg.rpc_resp;
if (!NFS_PROTO(dir)->unlink_done(task, dir))
nfs4_restart_rpc(task, NFS_SERVER(dir)->nfs_client);
nfs4_restart_rpc(task, NFS_SERVER(dir)->nfs_client,
&res->seq_res);
}
/**