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authorPeng Tao <bergwolf@gmail.com>2011-09-22 21:50:15 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-10-18 09:08:14 -0700
commit9b7eecdcfeb943f130d86bbc249fde4994b6fe30 (patch)
tree8aacc21981ce4f482bb5bab7f4e5fc546b6b99ff /fs/nfs/read.c
parent8ce160c5ef06cc89c2b6b26bfa5ef7a5ce2c93e0 (diff)
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.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 2171c043ab0..bfc20b16024 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);
}