- Use (parent_vnode, name, name_len) as key.
- Change smbfs_nget() to return a referenced but unlocked vnode and
adapt smbfs_setroot(), smbfs_create(), smbfs_mkdir() and smbfs_lookup().
- Implement NGONE to fix caching issue described in PR kern/25070.
Mostly taken from FreeBSD r125637.
- Revert revision 1.70 of smbfs_vnops.c to fix setattr to opened
direcotry. In case of SMB_CAP_NT_SMBS, NOPEN is set after
smbfs_smb_ntcreatex() call. If NOPEN is set in front, it will
immediately return by condition at do_open label.
- In smbfs_close(), call smbfs_smb_close() and drop NOPEN bit in
the case of direcotry. Otherwise smbfs_rmdir() fails when the
directory was opened.
reference to the parent directory's vnode instead of its smbnode to
avoid a use-after-free bug causing a panic when a smbfs mount is
forcefully unmounted.
Keep trying to flush the vnode list for the mount while some are still
busy and we are making progress towards making them not busy. This
stops attempts to unmount idle smbfs mounts failing with EBUSY.
The easiest way to reproduce the above problem, from what I have seen is:
1) Assume /s is a smbfs mount point.
2) mount /s
3) stat /s/foo/1
4) umount /s
Returns error because the file system is busy.
5) Shutdown the machine: panic in smbfs_reclaim because vrele
accesses already-released memory.
- make sure that kernel only files don't compile in userland using #error
- XXX: some kernel only files still get installed.
- XXX: some files used in userland, don't get installed.
so that mmap()ped regions remain accessible even when the file descriptor
is closed
g/c smbnode's n_opencount, and have single NOPEN flag instead
fixes PR kern/24516 by Lloyd Parkes
change obtained from FreeBSD, with only minor adjustments
number
bump the timeout to 5s; eventually we'd want to do some heuristics similar
to NFS, i.e. make the attribute cache timeout longer for files nor recently
changed
former smbfs_hash() may have accessed memory past buffer (ouch!), and accessed
memory in alignment-unsafe way
as an added bonus, hash32_strn() appears to have better distribution
martin