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2016-01-14nfsd: add new io class tracepointJeff Layton1-0/+41
Add some new tracepoints in the nfsd read/write codepaths. The idea is that this will give us the ability to measure how long each phase of a read or write operation takes. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-10-23nfsd: move include of state.h from trace.c to trace.hJeff Layton1-0/+2
Any file which includes trace.h will need to include state.h, even if they aren't using any state tracepoints. Ensure that we include any headers that might be needed in trace.h instead of relying on the *.c files to have the right ones. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-02-02nfsd: add trace eventsChristoph Hellwig1-0/+54
For now just a few simple events to trace the layout stateid lifetime, but these already were enough to find several bugs in the Linux client layout stateid handling. Signed-off-by: Christoph Hellwig <hch@lst.de>