On Tue, Feb 07, 2012 at 11:16:06AM -0800, Curt Wohlgemuth wrote: > This explicitly sends MS_SYNC as the flag to msync() in > fsx.c, in domapwrite(). Without this flag, the memory > written to the mmap'ed region will not be flushed to disk; > in fact, on Linux, calling msync() with a '0' or MS_ASYNC > flag is a no-op. Looks sensible to me - what exactly msync did has always been grossly different for different operating systems, including changing meaning on Linux a few times, so let's be explicit. Reviewed-by: Christoph Hellwig <hch@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html