2015-02-08 0:03 GMT+09:00 Akinobu Mita <akinobu.mita@xxxxxxxxx>: > This introduces a module parameter to detect zero writes and not to > allocate memory. Read requests for unallocated (unwritten) region > end up by reading zero. So this can save zeroed memory consumption > with extra overhead for the detection. > > This feature is useful for testing filesystems and user programs to > huge files without huge real storage. So this change also extends > the upper limit on the size of the RAM disk. I have just noticed about zram and I'll check I can use it instead. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
