On Tue, Jan 13, 2015 at 02:09:20PM -0500, Phillip Susi wrote: > linux_read was still allocating an aligned memory buffer and > copying from there to the caller buffer, in order to support > O_DIRECT. This is simply a waste of time now that we don't use > O_DIRECT. This change resulted in nearly 10% less cpu time spent > attempting to rescue a lost filesystem on a scsi_debug disk.
Nice! > > In addition, there was some autoconf machinery to make sure that > the test suite was run in a directory that supports O_DIRECT. > --- Ack -- Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)
