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| author | Peng Tao <tao.peng@primarydata.com> | 2015-12-04 02:57:48 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-12-28 14:32:36 -0500 |
| commit | d600ad1f2bdbf97c4818dcc85b174f72c90c21bd (patch) | |
| tree | daec357d0f24c241834d7c37e3adc723925e369f /fs/nfs/pnfs.c | |
| parent | d0379a5d066a998b0210a81dc52e266ce4daaa36 (diff) | |
| download | linux-d600ad1f2bdbf97c4818dcc85b174f72c90c21bd.tar.gz linux-d600ad1f2bdbf97c4818dcc85b174f72c90c21bd.tar.bz2 linux-d600ad1f2bdbf97c4818dcc85b174f72c90c21bd.zip | |
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/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 6095a8d42766..b1acc4135c3c 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -906,14 +906,15 @@ send_layoutget(struct pnfs_layout_hdr *lo, if (IS_ERR(lseg)) { switch (PTR_ERR(lseg)) { - case -ENOMEM: case -ERESTARTSYS: + case -EIO: + case -ENOSPC: + case -EROFS: + case -E2BIG: break; default: - /* remember that LAYOUTGET failed and suspend trying */ - pnfs_layout_io_set_failed(lo, range->iomode); + return NULL; } - return NULL; } else pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(range->iomode)); @@ -1649,7 +1650,7 @@ out: "(%s, offset: %llu, length: %llu)\n", __func__, ino->i_sb->s_id, (unsigned long long)NFS_FILEID(ino), - lseg == NULL ? "not found" : "found", + IS_ERR_OR_NULL(lseg) ? "not found" : "found", iomode==IOMODE_RW ? "read/write" : "read-only", (unsigned long long)pos, (unsigned long long)count); @@ -1828,6 +1829,11 @@ pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *r rd_size, 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) @@ -1840,13 +1846,19 @@ void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req, u64 wb_size) { - if (pgio->pg_lseg == NULL) + if (pgio->pg_lseg == NULL) { pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, req->wb_context, req_offset(req), wb_size, 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) nfs_pageio_reset_write_mds(pgio); |