diff options
| author | Liang Zhen <liang.zhen@intel.com> | 2016-06-20 16:55:31 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-20 14:28:39 -0700 |
| commit | 9faa2ade3fdaf00c6c45654071b325d3c88f9230 (patch) | |
| tree | 0ff8d317949ddadfe19752201ef0b45bae9963d9 /kernel/sys.c | |
| parent | 32c8728d87dcd59949800d838e4e7dce0c625062 (diff) | |
staging/lustre/ptlrpc: missing wakeup for ptlrpc_check_set
This patch changes a few things:
- There is no guarantee that request_out_callback will happen
before reply_in_callback, if a request got reply and unlinked
reply buffer before request_out_callback is called, then the
thread waiting on ptlrpc_request_set will miss wakeup event.
This may seriously impact performance of some IO workloads or
result in RPC timeout
- To make code more easier to understand, this patch changes
action-bits "rq_req_unlink" and "rq_reply_unlink" to
status-bits "rq_req_unlinked" and "rq_reply_unlinked"
Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-on: http://review.whamcloud.com/12158
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5696
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Reviewed-by: Li Wei <wei.g.li@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions