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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-12-03 20:53:21 (GMT)
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-12-03 20:53:21 (GMT)
commita9ed2e2583747fb3139a764c317fac58893b968f (patch)
tree55d6504df716da57884cee0593b86f3a04558401
parentc8b7ae3d3221536228260757444ee10c6d71793f (diff)
downloadlinux-a9ed2e2583747fb3139a764c317fac58893b968f.tar.xz
NFSv4: Handle NFS4ERR_GRACE when recovering an expired lease.
If our lease expires, and the server reboots while we're recovering, we need to be able to wait until the grace period is over. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/nfs4proc.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 741a562..c7b8d39 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1488,7 +1488,7 @@ static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s
return ret;
}
-static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
+static int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_exception exception = { };
@@ -1496,10 +1496,16 @@ static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4
do {
err = _nfs4_open_expired(ctx, state);
- if (err != -NFS4ERR_DELAY)
- break;
- nfs4_handle_exception(server, err, &exception);
+ switch (err) {
+ default:
+ goto out;
+ case -NFS4ERR_GRACE:
+ case -NFS4ERR_DELAY:
+ nfs4_handle_exception(server, err, &exception);
+ err = 0;
+ }
} while (exception.retry);
+out:
return err;
}
@@ -4049,10 +4055,16 @@ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request
if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
return 0;
err = _nfs4_do_setlk(state, F_SETLK, request, 0);
- if (err != -NFS4ERR_DELAY)
- break;
- nfs4_handle_exception(server, err, &exception);
+ switch (err) {
+ default:
+ goto out;
+ case -NFS4ERR_GRACE:
+ case -NFS4ERR_DELAY:
+ nfs4_handle_exception(server, err, &exception);
+ err = 0;
+ }
} while (exception.retry);
+out:
return err;
}