diff --git a/fuseops/convert.go b/fuseops/convert.go index 4dd0ceb..960ca2a 100644 --- a/fuseops/convert.go +++ b/fuseops/convert.go @@ -42,14 +42,6 @@ func Convert( var io internalOp switch typed := r.(type) { - case *bazilfuse.InitRequest: - to := &InitOp{ - maxReadahead: typed.MaxReadahead, - } - - io = to - co = &to.commonOp - case *bazilfuse.LookupRequest: to := &LookUpInodeOp{ Parent: InodeID(typed.Header.Node), diff --git a/fuseops/ops.go b/fuseops/ops.go index cd21c0e..f65646e 100644 --- a/fuseops/ops.go +++ b/fuseops/ops.go @@ -53,64 +53,6 @@ type Op interface { Logf(format string, v ...interface{}) } -//////////////////////////////////////////////////////////////////////// -// Setup -//////////////////////////////////////////////////////////////////////// - -// Sent once when mounting the file system. It must succeed in order for the -// mount to succeed. -type InitOp struct { - commonOp - - maxReadahead uint32 -} - -func (o *InitOp) toBazilfuseResponse() (bfResp interface{}) { - resp := bazilfuse.InitResponse{} - bfResp = &resp - - // Ask the Linux kernel for larger write requests. - // - // As of 2015-03-26, the behavior in the kernel is: - // - // * (http://goo.gl/jMKHMZ, http://goo.gl/XTF4ZH) Cap the max write size at - // the maximum of 4096 and init_response->max_write. - // - // * (http://goo.gl/gEIvHZ) If FUSE_BIG_WRITES isn't set, don't return more - // than one page. - // - // * (http://goo.gl/4RLhxZ, http://goo.gl/hi0Cm2) Never write more than - // FUSE_MAX_PAGES_PER_REQ pages (128 KiB on x86). - // - // 4 KiB is crazy small. Ask for significantly more, and take what the kernel - // will give us. - const maxWrite = 1 << 21 - resp.Flags |= bazilfuse.InitBigWrites - resp.MaxWrite = maxWrite - - // Ask the Linux kernel for larger read requests. - // - // As of 2015-03-26, the behavior in the kernel is: - // - // * (http://goo.gl/bQ1f1i, http://goo.gl/HwBrR6) Set the local variable - // ra_pages to be init_response->max_readahead divided by the page size. - // - // * (http://goo.gl/gcIsSh, http://goo.gl/LKV2vA) Set - // backing_dev_info::ra_pages to the min of that value and what was sent - // in the request's max_readahead field. - // - // * (http://goo.gl/u2SqzH) Use backing_dev_info::ra_pages when deciding - // how much to read ahead. - // - // * (http://goo.gl/JnhbdL) Don't read ahead at all if that field is zero. - // - // Reading a page at a time is a drag. Ask for as much as the kernel is - // willing to give us. - resp.MaxReadahead = o.maxReadahead - - return -} - //////////////////////////////////////////////////////////////////////// // Inodes ////////////////////////////////////////////////////////////////////////