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nfs4: Release vnodes when no longer used

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This commit is contained in:
Pawel Dziepak
2012-12-04 01:35:00 +01:00
parent 83444c2321
commit aec9dfc921
1 changed files with 43 additions and 33 deletions
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src/add-ons/kernel/file_systems/nfs4/kernel_interface.cpp
+43 -33
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@@ -533,8 +533,12 @@ nfs4_create_symlink(fs_volume* volume, fs_vnode* dir, const char* name,
return result;
result = get_vnode(volume, id, reinterpret_cast<void**>(&vti));
if (result == B_OK)
if (result == B_OK) {
unremove_vnode(volume, id);
vti->Clear();
put_vnode(volume, id);
}
return B_OK;
}
@@ -580,14 +584,17 @@ nfs4_unlink(fs_volume* volume, fs_vnode* dir, const char* name)
return result;
locker.Unlock();
void* ptr;
result = get_vnode(volume, id, &ptr);
if (result == B_OK) {
vti = reinterpret_cast<VnodeToInode*>(ptr);
result = acquire_vnode(volume, id);
if (result == B_OK) {
ASSERT(get_vnode(volume, id, reinterpret_cast<void**>(&vti)) == B_OK);
vti->Remove();
put_vnode(volume, id);
remove_vnode(volume, id);
put_vnode(volume, id);
}
return remove_vnode(volume, id);
return B_OK;
}
@@ -626,6 +633,7 @@ nfs4_rename(fs_volume* volume, fs_vnode* fromDir, const char* fromName,
child->fInfo.fParent = toInode->fInfo.fHandle;
child->fInfo.CreateName(toInode->fInfo.fPath, toName);
put_vnode(volume, id);
}
return B_OK;
@@ -686,43 +694,29 @@ get_new_vnode(fs_volume* volume, ino_t id, VnodeToInode** _vti)
Inode* inode;
VnodeToInode* vti;
status_t result = get_vnode(volume, id, reinterpret_cast<void**>(_vti));
status_t result = acquire_vnode(volume, id);
if (result == B_OK) {
ASSERT(get_vnode(volume, id, reinterpret_cast<void**>(_vti)) == B_OK);
unremove_vnode(volume, id);
// Release after acquire
put_vnode(volume, id);
vti = *_vti;
// FIXME: race condition vti->Get() == NULL and vti->Replace(inode)
if (vti->Get() == NULL) {
result = fs->GetInode(id, &inode);
if (result != B_OK)
if (result != B_OK) {
put_vnode(volume, id);
return result;
}
vti->Replace(inode);
unremove_vnode(volume, id);
}
return B_OK;
}
vti = new VnodeToInode(id, fs);
if (vti == NULL)
return B_NO_MEMORY;
*_vti = vti;
result = fs->GetInode(id, &inode);
if (result != B_OK) {
delete vti;
return result;
}
vti->Replace(inode);
result = new_vnode(volume, id, vti, &gNFSv4VnodeOps);
if (result != B_OK) {
delete vti;
delete inode;
}
return B_OK;
return get_vnode(volume, id, reinterpret_cast<void**>(_vti)); //_OK;
}
@@ -762,6 +756,7 @@ nfs4_create(fs_volume* volume, fs_vnode* dir, const char* name, int openMode,
Inode* child = vti->Get();
if (child == NULL) {
delete cookie;
put_vnode(volume, *_newVnodeID);
return B_ENTRY_NOT_FOUND;
}
@@ -930,8 +925,12 @@ nfs4_create_dir(fs_volume* volume, fs_vnode* parent, const char* name,
return result;
result = get_vnode(volume, id, reinterpret_cast<void**>(&vti));
if (result == B_OK)
if (result == B_OK) {
unremove_vnode(volume, id);
vti->Clear();
put_vnode(volume, id);
}
return B_OK;
}
@@ -951,7 +950,18 @@ nfs4_remove_dir(fs_volume* volume, fs_vnode* parent, const char* name)
status_t result = inode->Remove(name, NF4DIR, &id);
if (result != B_OK)
return result;
return remove_vnode(volume, id);
result = acquire_vnode(volume, id);
if (result == B_OK) {
ASSERT(get_vnode(volume, id, reinterpret_cast<void**>(&vti)) == B_OK);
vti->Remove();
put_vnode(volume, id);
remove_vnode(volume, id);
put_vnode(volume, id);
}
return B_OK;
}