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| author | Christoph Hellwig <hch@lst.de> | 2015-04-27 14:50:13 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2015-05-04 12:02:37 -0400 |
| commit | 40cdc7a530c7a075557651a071354bb42b99df08 (patch) | |
| tree | 0647504caf067e89f419f83573c40bf2671a0a1c /fs/nfsd/nfs4state.c | |
| parent | 5ebe6afaf0057ac3eaeb98defd5456894b446d22 (diff) | |
| download | blackbird-op-linux-40cdc7a530c7a075557651a071354bb42b99df08.tar.gz blackbird-op-linux-40cdc7a530c7a075557651a071354bb42b99df08.zip | |
nfsd/blocklayout: pretend we can send deviceid notifications
Commit df52699e4fcef ("NFSv4.1: Don't cache deviceids that have no
notifications") causes the Linux NFS client to stop caching deviceid's
unless a server pretends to support deviceid notifications. While this
behavior is stupid and the language around this area in rfc5661 is a
mess carified by an errata that I submittted, Trond insists on this
behavior. Not caching deviceids degrades block layout performance
massively as a GETDEVICEINFO is fairly expensive.
So add this hack to make the Linux client happy again.
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
0 files changed, 0 insertions, 0 deletions
