diff options
| 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/read.c | |
| parent | 8ce160c5ef06cc89c2b6b26bfa5ef7a5ce2c93e0 (diff) | |
| download | blackbird-op-linux-9b7eecdcfeb943f130d86bbc249fde4994b6fe30.tar.gz blackbird-op-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/read.c')
| -rw-r--r-- | fs/nfs/read.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 2171c043ab08..bfc20b160243 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -541,13 +541,23 @@ static void nfs_readpage_result_full(struct rpc_task *task, void *calldata) static void nfs_readpage_release_full(void *calldata) { struct nfs_read_data *data = calldata; + struct nfs_pageio_descriptor pgio; + if (data->pnfs_error) { + nfs_pageio_init_read_mds(&pgio, data->inode); + pgio.pg_recoalesce = 1; + } while (!list_empty(&data->pages)) { struct nfs_page *req = nfs_list_entry(data->pages.next); nfs_list_remove_request(req); - nfs_readpage_release(req); + if (!data->pnfs_error) + nfs_readpage_release(req); + else + nfs_pageio_add_request(&pgio, req); } + if (data->pnfs_error) + nfs_pageio_complete(&pgio); nfs_readdata_release(calldata); } |
