Eric Van Hensbergen wrote on Sat, Feb 18, 2023 at 12:33:20AM +0000: > Add some additional mount modes for cache management including > specifying directio as a mount option and an option for ignore > qid.version for determining whether or not a file is cacheable. direct io is standard enough but ignore QV probably warrants a comment in the code and not just a word in the commit message. I see you've added these in Documentation/filesystems/9p.rst in the "writeback mode fixes" -- I guess we can live with commits introducing options not being 100% coherent within the series (the implementation also comes in that fixes commit), but perhaps a '/* ignore qid.version */' comment in the enum? > diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h > index d90141d25d0d..48c7614c9333 100644 > --- a/fs/9p/v9fs.h > +++ b/fs/9p/v9fs.h > @@ -37,7 +37,10 @@ enum p9_session_flags { > V9FS_ACCESS_USER = 0x08, > V9FS_ACCESS_CLIENT = 0x10, > V9FS_POSIX_ACL = 0x20, > - V9FS_NO_XATTR = 0x40 > + V9FS_NO_XATTR = 0x40, > + V9FS_IGNORE_QV = 0x80, > + V9FS_DIRECT_IO = 0x100, > + V9FS_SYNC = 0x200 ... And while we're here, indentation seems off on sync -- Dominique