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Removed InitOp.

geesefs-0-30-9
Aaron Jacobs 2015-06-22 12:29:52 +10:00
parent ef728f8af2
commit 11eadaed84
2 changed files with 0 additions and 66 deletions
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8
fuseops/convert.go
View File

@ -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),

58
fuseops/ops.go
View File

@ -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
////////////////////////////////////////////////////////////////////////