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author | Jeff Layton <jlayton@kernel.org> | 2019-04-22 12:34:24 -0400 |
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committer | J. Bruce Fields <bfields@redhat.com> | 2019-04-22 15:38:41 -0400 |
commit | f456458e4d25a8962d0946891617c76cc3ff5fb9 (patch) | |
tree | bac517015f1d270e1becc4e53da7a881d205684b /net/sunrpc | |
parent | 6aaafc43a4ecc5bc8a3f6a2811d5eddc996a97f3 (diff) | |
download | linux-f456458e4d25a8962d0946891617c76cc3ff5fb9.tar.bz2 |
nfsd: wake blocked file lock waiters before sending callback
When a blocked NFS lock is "awoken" we send a callback to the server and
then wake any hosts waiting on it. If a client attempts to get a lock
and then drops off the net, we could end up waiting for a long time
until we end up waking locks blocked on that request.
So, wake any other waiting lock requests before sending the callback.
Do this by calling locks_delete_block in a new "prepare" phase for
CB_NOTIFY_LOCK callbacks.
URL: https://bugzilla.kernel.org/show_bug.cgi?id=203363
Fixes: 16306a61d3b7 ("fs/locks: always delete_block after waiting.")
Reported-by: Slawomir Pryczek <slawek1211@gmail.com>
Cc: Neil Brown <neilb@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
0 files changed, 0 insertions, 0 deletions