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authorPeng Tao <tao.peng@primarydata.com>2015-12-04 02:57:48 +0800
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-12-28 14:32:36 -0500
commitd600ad1f2bdbf97c4818dcc85b174f72c90c21bd (patch)
treedaec357d0f24c241834d7c37e3adc723925e369f /fs/nfs/filelayout
parentd0379a5d066a998b0210a81dc52e266ce4daaa36 (diff)
downloadop-kernel-dev-d600ad1f2bdbf97c4818dcc85b174f72c90c21bd.zip
op-kernel-dev-d600ad1f2bdbf97c4818dcc85b174f72c90c21bd.tar.gz
NFS41: pop some layoutget errors to application
For ERESTARTSYS/EIO/EROFS/ENOSPC/E2BIG in layoutget, we should just bail out instead of hiding the error and retrying inband IO. Change all the call sites to pop the error all the way up. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/filelayout')
-rw-r--r--fs/nfs/filelayout/filelayout.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 02ec079..ae07b0f 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -883,13 +883,19 @@ static void
filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
- if (!pgio->pg_lseg)
+ if (!pgio->pg_lseg) {
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
0,
NFS4_MAX_UINT64,
IOMODE_READ,
GFP_KERNEL);
+ if (IS_ERR(pgio->pg_lseg)) {
+ pgio->pg_error = PTR_ERR(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ return;
+ }
+ }
/* If no lseg, fall back to read through mds */
if (pgio->pg_lseg == NULL)
nfs_pageio_reset_read_mds(pgio);
@@ -902,13 +908,20 @@ filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio,
struct nfs_commit_info cinfo;
int status;
- if (!pgio->pg_lseg)
+ if (!pgio->pg_lseg) {
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
0,
NFS4_MAX_UINT64,
IOMODE_RW,
GFP_NOFS);
+ if (IS_ERR(pgio->pg_lseg)) {
+ pgio->pg_error = PTR_ERR(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ return;
+ }
+ }
+
/* If no lseg, fall back to write through mds */
if (pgio->pg_lseg == NULL)
goto out_mds;
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