This is the second version of a patch series which adds a number of features to improve read/write performance in the 9p filesystem. Mostly it focuses on fixing caching to help utilize the recently increased MSIZE limits and also fixes some problematic behavior within the writeback code. Altogether, these show roughly 10x speed increases on simple file transfers. Future patch sets will improve cache consistency and directory caching. These patches are also available on github: https://github.com/v9fs/linux/tree/ericvh/9p-next Tested against qemu, cpu, and diod with fsx, dbench, and some simple benchmarks. Signed-off-by: Eric Van Hensbergen <evanhensbergen@xxxxxxxxxx>