This is the third 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. All together, 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/for-next and on kernel.org: https://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs.git Tested against qemu, cpu, and diod with fsx, dbench, and some simple benchmarks. Eric Van Hensbergen (11): Adjust maximum MSIZE to account for p9 header Expand setup of writeback cache to all levels Consolidate file operations and add readahead and writeback Remove unnecessary superblock flags allow disable of xattr support on mount fix bug in client create for .L Add additional debug flags and open modes Add new mount modes fix error reporting in v9fs_dir_release writeback mode fixes Fix revalidate Documentation/filesystems/9p.rst | 26 +++-- fs/9p/fid.c | 52 ++++----- fs/9p/fid.h | 33 +++++- fs/9p/v9fs.c | 49 +++++--- fs/9p/v9fs.h | 9 +- fs/9p/v9fs_vfs.h | 4 - fs/9p/vfs_addr.c | 24 ++-- fs/9p/vfs_dentry.c | 3 +- fs/9p/vfs_dir.c | 16 ++- fs/9p/vfs_file.c | 194 +++++++------------------------ fs/9p/vfs_inode.c | 71 ++++------- fs/9p/vfs_inode_dotl.c | 62 +++++----- fs/9p/vfs_super.c | 28 +++-- include/net/9p/9p.h | 5 + net/9p/client.c | 8 +- 15 files changed, 256 insertions(+), 328 deletions(-) -- 2.37.2
