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Added a note about nlookup for the root inode. 

For #7.
geesefs-0-30-9
Aaron Jacobs 2015-03-30 16:35:17 +11:00
parent bd16024eec
commit 36d7193638
1 changed files with 15 additions and 4 deletions
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19
fuseops/ops.go
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@ -220,10 +220,11 @@ func (o *SetInodeAttributesOp) Respond(err error) {
// Decrement the reference count for an inode ID previously issued by the file
// system.
//
// The comments for the ops that implicitly increment the reference
// count contain a note of this. For example, LookUpInodeOp and MkDirOp. The
// authoritative source is the libfuse documentation, which states that any op
// that returns fuse_reply_entry fuse_reply_create implicitly increments (cf.
// The comments for the ops that implicitly increment the reference count
// contain a note of this (but see also the note about the root inode below).
// For example, LookUpInodeOp and MkDirOp. The authoritative source is the
// libfuse documentation, which states that any op that returns
// fuse_reply_entry fuse_reply_create implicitly increments (cf.
// http://goo.gl/o5C7Dx).
//
// If the reference count hits zero, the file system can forget about that ID
@ -239,6 +240,16 @@ func (o *SetInodeAttributesOp) Respond(err error) {
// * (http://goo.gl/VQMQul) fuse_dentry_revalidate increments after
// revalidating.
//
// In contrast to all other inodes, RootInodeID begins with an implicit
// reference count of one, without a corresponding op to increase it:
//
// * (http://goo.gl/gWAheU) fuse_fill_super calls fuse_get_root_inode.
//
// * (http://goo.gl/AoLsbb) fuse_get_root_inode calls fuse_iget without
// sending any particular request.
//
// * (http://goo.gl/vPD9Oh) fuse_iget increments nlookup.
//
type ForgetInodeOp struct {
commonOp