merged the first two (cleanup) patches into cifs-2.6.git for-next pending additional testing. Waiting on the larger, third patch until more review comments and a chance to look more carefully and try it out. On Sun, Oct 4, 2020 at 6:37 PM Ronnie Sahlberg <lsahlber@xxxxxxxxxx> wrote: > > Steve, Aurelien, List > > V2: addressing Aureliens comments > * Fix comment style > * Describe what ctx->pos == 2 means > * use is_smb1_server() > > > See initial implementation of a mechanism to cache the directory entries for > a shared cache handle (shroot). > We cache all the entries during the initial readdir() scan, using the context > from the vfs layer as the key to handle if there are multiple concurrent readir() scans > of the same directory. > Then if/when we have successfully cached the entire direcotry we will server any > subsequent readdir() from out of cache, avoinding making any query direcotry calls to the server. > > As with all of shroot, the cache is kept until the direcotry lease is broken. > > > The first two patches are small and just a preparation for the third patch. They go as separate > patches to make review easier. > The third patch adds the actual meat of the dirent caching . > > > For now this might not be too exciting because the only cache the root handle. > I hope in the future we will expand the directory caching to handle any/many direcotries. > -- Thanks, Steve
