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| author | Benjamin Coddington <bcodding@redhat.com> | 2017-04-14 18:29:54 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-04-20 19:49:22 +0200 |
| commit | 43b7d964ed30dbca5c83c90cb010985b429ec4f9 (patch) | |
| tree | d8bc5a59d8115984e0dee48a0551230fc2be7ec0 /fs/nfs | |
| parent | sunrpc: don't check for failure from mempool_alloc() (diff) | |
| download | linux-43b7d964ed30dbca5c83c90cb010985b429ec4f9.tar.xz linux-43b7d964ed30dbca5c83c90cb010985b429ec4f9.zip | |
NFS: Fix missing pg_cleanup after nfs_pageio_cond_complete()
Commit a7d42ddb3099727f58366fa006f850a219cce6c8 ("nfs: add mirroring
support to pgio layer") moved pg_cleanup out of the path when there was
non-sequental I/O that needed to be flushed. The result is that for
layouts that have more than one layout segment per file, the pg_lseg is not
cleared, so we can end up hitting the WARN_ON_ONCE(req_start >= seg_end) in
pnfs_generic_pg_test since the pg_lseg will be pointing to that
previously-flushed layout segment.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Fixes: a7d42ddb3099 ("nfs: add mirroring support to pgio layer")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/pagelist.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 6e629b856a00..3917268961d9 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -1256,8 +1256,10 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index) mirror = &desc->pg_mirrors[midx]; if (!list_empty(&mirror->pg_list)) { prev = nfs_list_entry(mirror->pg_list.prev); - if (index != prev->wb_index + 1) - nfs_pageio_complete_mirror(desc, midx); + if (index != prev->wb_index + 1) { + nfs_pageio_complete(desc); + break; + } } } } |