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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2016-02-22 17:34:59 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-02-22 17:34:59 -0500 |
| commit | 2454dfea0aef8a883d4302c38124edb373d47a25 (patch) | |
| tree | e6ffc2bd5a1bc51a60bd22c5d7d59aa0f72d9935 /fs/seq_file.c | |
| parent | Merge tag 'nfs-rdma-4.5-1' of git://git.linux-nfs.org/projects/anna/nfs-rdma (diff) | |
| download | linux-dev-2454dfea0aef8a883d4302c38124edb373d47a25.tar.xz linux-dev-2454dfea0aef8a883d4302c38124edb373d47a25.zip | |
NFSv4.x/pnfs: Fix a race between layoutget and pnfs_destroy_layout
If the server reboots while there is a layoutget outstanding, then
the call to pnfs_choose_layoutget_stateid() will fail with an EAGAIN
error, which causes an infinite loop in send_layoutget(). The reason
why we never break out of the loop is that the layout 'plh_block_lgets'
field is never cleared.
Fix is to replace plh_block_lgets with NFS_LAYOUT_INVALID_STID, which
can be reset after a new layoutget.
Fixes: ab7d763e477c5 ("pNFS: Ensure nfs4_layoutget_prepare returns...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/seq_file.c')
0 files changed, 0 insertions, 0 deletions