diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-07-14 18:46:24 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-07-19 16:23:22 -0400 |
| commit | e85d7ee42003314652ab3ae2c60e3b8cd793b65f (patch) | |
| tree | cecc7d64e483cfce4e45fbb6356806cba67327c7 /fs/nfs | |
| parent | 56b38a1f7c781519eef09c1668a3c97ea911f86b (diff) | |
pNFS: Separate handling of NFS4ERR_LAYOUTTRYLATER and RECALLCONFLICT
They are not the same error, and need to be handled differently.
Fixes: 183d9e7b112aa ("pnfs: rework LAYOUTGET retry handling")
Cc: stable@vger.kernel.org # 4.7
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 23 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 1 |
2 files changed, 15 insertions, 9 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 519368b98762..ee8efe0a5202 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -437,6 +437,7 @@ static int nfs4_do_handle_exception(struct nfs_server *server, case -NFS4ERR_DELAY: nfs_inc_server_stats(server, NFSIOS_DELAY); case -NFS4ERR_GRACE: + case -NFS4ERR_LAYOUTTRYLATER: case -NFS4ERR_RECALLCONFLICT: exception->delay = 1; return 0; @@ -7883,11 +7884,12 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, struct inode *inode = lgp->args.inode; struct nfs_server *server = NFS_SERVER(inode); struct pnfs_layout_hdr *lo; - int status = task->tk_status; + int nfs4err = task->tk_status; + int err, status = 0; dprintk("--> %s tk_status => %d\n", __func__, -task->tk_status); - switch (status) { + switch (nfs4err) { case 0: goto out; @@ -7919,12 +7921,11 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, status = -EOVERFLOW; goto out; } - /* Fallthrough */ + status = -EBUSY; + break; case -NFS4ERR_RECALLCONFLICT: - nfs4_handle_exception(server, -NFS4ERR_RECALLCONFLICT, - exception); status = -ERECALLCONFLICT; - goto out; + break; case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: exception->timeout = 0; @@ -7955,9 +7956,13 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, spin_unlock(&inode->i_lock); } - status = nfs4_handle_exception(server, status, exception); - if (exception->retry) - status = -EAGAIN; + err = nfs4_handle_exception(server, nfs4err, exception); + if (!status) { + if (exception->retry) + status = -EAGAIN; + else + status = err; + } out: dprintk("<-- %s\n", __func__); return status; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 563f131c9abe..c50d4ebab5c5 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1648,6 +1648,7 @@ lookup_again: atomic_dec(&lo->plh_outstanding); if (IS_ERR(lseg)) { switch(PTR_ERR(lseg)) { + case -EBUSY: case -ERECALLCONFLICT: if (time_after(jiffies, giveup)) lseg = NULL; |