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| author | Peng Tao <bergwolf@gmail.com> | 2011-09-22 21:50:15 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-10-18 09:08:14 -0700 |
| commit | 9b7eecdcfeb943f130d86bbc249fde4994b6fe30 (patch) | |
| tree | 8aacc21981ce4f482bb5bab7f4e5fc546b6b99ff /fs/nfs/pnfs.c | |
| parent | 8ce160c5ef06cc89c2b6b26bfa5ef7a5ce2c93e0 (diff) | |
| download | linux-9b7eecdcfeb943f130d86bbc249fde4994b6fe30.tar.gz linux-9b7eecdcfeb943f130d86bbc249fde4994b6fe30.tar.bz2 linux-9b7eecdcfeb943f130d86bbc249fde4994b6fe30.zip | |
pnfs: recoalesce when ld read pagelist fails
For pnfs pagelist read failure, we need to pg_recoalesce and resend IO to
mds.
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Cc: stable@kernel.org [3.0]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index a205c8e2c731..ee73d9a4f700 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1262,23 +1262,17 @@ EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages); /* * Called by non rpc-based layout drivers */ -int -pnfs_ld_read_done(struct nfs_read_data *data) +void pnfs_ld_read_done(struct nfs_read_data *data) { - int status; - - if (!data->pnfs_error) { + if (likely(!data->pnfs_error)) { __nfs4_read_done_cb(data); data->mds_ops->rpc_call_done(&data->task, data); - data->mds_ops->rpc_release(data); - return 0; + } else { + put_lseg(data->lseg); + data->lseg = NULL; + dprintk("pnfs write error = %d\n", data->pnfs_error); } - - dprintk("%s: pnfs_error=%d, retry via MDS\n", __func__, - data->pnfs_error); - status = nfs_initiate_read(data, NFS_CLIENT(data->inode), - data->mds_ops); - return status ? : -EAGAIN; + data->mds_ops->rpc_release(data); } EXPORT_SYMBOL_GPL(pnfs_ld_read_done); |