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
is carried out; particularily, don't touch it if the rename files
due to EXDEV - the 'from' or 'to' vnode may not be on smbfs filesystem
at all in that case
this is the final fix for PR kern/24455 by Milos Urbanek
* it should not be called for rmdir or remove vop
* for create and mkdir, it should only be called on error, or when
SAVESTART flag is not set
fixes PR kern/24455 by Milos Urbanek
Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(),
vfs_sysctl(), etc, routines, along with sysctl_int() et al. Now all
nodes are registered with the tree, and nodes can be added (or
removed) easily, and I/O to and from the tree is handled generically.
Since the nodes are registered with the tree, the mapping from name to
number (and back again) can now be discovered, instead of having to be
hard coded. Adding new nodes to the tree is likewise much simpler --
the new infrastructure handles almost all the work for simple types,
and just about anything else can be done with a small helper function.
All existing nodes are where they were before (numerically speaking),
so all existing consumers of sysctl information should notice no
difference.
PS - I'm sorry, but there's a distinct lack of documentation at the
moment. I'm working on sysctl(3/8/9) right now, and I promise to
watch out for buses.
* Remove the "lwp *" argument that was added to vget(). Turns out
that nothing actually used it!
* Remove the "lwp *" arguments that were added to VFS_ROOT(), VFS_VGET(),
and VFS_FHTOVP(); all they did was pass it to vget() (which, as noted
above, didn't use it).
* Remove all of the "lwp *" arguments to internal functions that were added
just to appease the above.
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.
Bump the kernel rev up to 1.6V
- Under chroot it displays only the visible filesystems with appropriate paths.
- The statfs f_mntonname gets adjusted to contain the real path from root.
- While was there, fixed a bug in ext2fs, locking problems with vfs_getfsstat(),
and factored out some of the vfsop statfs() code to copy_statfs_info(). This
fixes the problem where some filesystems forgot to set fsid.
- Made coda look more like a normal fs.
* vinvalbuf needs to be called without simplelocks held
* need to release the lock in opencount > 0 case
* need to release the lock before smbfs_findclose(), since that
can send a request to SMB server and attempt to pool_get() a request buffer
problem path found & testing by Martin Husemann, fix adresses PR kern/21067
is used to setup a 'PID' for the lock; if a SMB write request is sent
to server, it returns EDEADLK if it doesn't have same PID. since we
use '1' as request PID (see smb_rq_new()), we must use '1' here too,
for now
add a comment what is the ID used for, to avoid similar mistake in future
this partially back off rev 1.5, and makes advisory locking work
on SMB shares mounted from Windows again (sigh)
the condition was changed to be true when the file _should_ be removed,
but ended up wrong way
this fixes a problem where it wasn't possible to remove regular files
from mounted smbfs share
smbfs_smb_close() - that routine allocates memory and could sleep
problem found with LOCKDEBUG, change adresses PR kern/21067 by Martin Husemann
g/c unneeded VOP_GETATTR() call from smbfs_closel()
convert all code to use smb_{rq|t2}_alloc() instead of allocating
structures on stack, make smb_rq_init()/smb_t2_init() static and not
exported outside smb_rq.c
server supports it
for this, need NT CREATE AND X a directory in smbfs_open(), so that
we get the FID handle used for DIRECTORY CHANGE NOTIFY SMB
this could eventually be used to 'watch' even regular files, by
watching its parent directory and lookup/VN_KNOTE() when we get
REMOVED/RENAMED/MODIFIED action
also reorganize the kqueue code somewhat to use simplify locking
and knote detach
this is basically copy of what nfs_kq.c does - a thread periodically
polls server checking if any of the wateched files changed
eventually this should be changed to take advantage of SMB Directory
Change Notify
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
This is potentially fragile, since the vnode may have been reclaimed
in vflush(), and used by different filesystem. This wouldn't actually
happen due to n_parent link to parent directory, but better safe
than sorry.
Since sm_root is only and strictly cache to speed up VFS_ROOT(),
it can be acquired/dropped any time. Rearrange code to not
require sm_root set, and change smbfs_root() back to set
sm_root if it's not set yet. smbfs_unmount() now only vrele()s
the root vnode if sm_root is set, and doesn't try reacquire it
if vflush() fails.
problem with vref() after vflush() pointed out by Bill Studenmund
smbfs_setroot()
remove pointless if() and MNT_LOCAL flag handling in smbfs_unmount()
turn the check for non-null sm_root to KASSERT() in smbfs_statfs()
adjust some comments
* lock/unlock mntvnode_slock and vnode interlock appropriately
* use LK_NOWAIT for vget()
* adjust the check for vnode being dirty to check fs-private 'modified' flag,
and drop waitfor/VOP_ISLOCKED() check
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
* make sure islastcn and lockparent is set before used when the entry is cached
* add VWRITE check for nameiop == RENAME, add necessary unlock/relock for
ISDOTDOT case
adjust smbfs_print() to have slightly nicer output
enable vnode locking
* use LK_RETRY for the vget()
* turn the check for dead parent vnode to #ifdef DIAGNOSTIC panic
* reformat the hash walk code a little, and only assign vp if entries match
* add some comments
* g/c unused members 'mount_point', 'root_path', which only take space
* rename 'dev' to 'dev_fd' to more closely match what it is
* add 'export' member to avoid changing this again if ever smbfs would
be made exportable
bump SMBFS_VERMIN - ABI/API change; mount_smbfs needs to be recompiled
to work again
make smbfs_name_{alloc|free} inline
turn some checks for smbfs code errors to KASSERT()s
KNF some
also initialize n_size in smbfs_node_alloc()
g/c write-only variable in smbfs_nget()
make smbfs_readvdir() slightly more readable, and don't adjust uio_offset
by hand
g/c the lock code around smbfs_readvdir() - a) it's not needed here b) it
didn't do anything anyway
add some KASSERTs
simplify smbfs_vinvalbuf() a bit, use plain interruptible sleep instead
of smb_proc_intr()
for different cache_lookup() semantics
fix smbfs_pathcheck() to not assume zero-ended component name
remove the bogus code in smbfs_close(), it's not needed on NetBSD
fix couple other vnop routines to do vput()/vrele()/PNBUF_PUT() as appropriate
KNF
#if 0 smbfs_hashprint(), and mark it static
do NOT reinit vp->v_lock - getnewvnode() did it for us
smbfs_reclaim(): unconditionaly do LIST_REMOVE(), and de-obfuscate parent
directory vrele() call
so that the filesystem wouldn't appear as busy when it's not, and vref()
it back if the vflush() fails
LK_DRAIN sm_hashlock before freeing the smbmount struct
g/c one meaningless check in smbfs_root()
* g/c superfluous printfs
* use vcp on one more place
* don't need to check result of allocation with M_WAITOK
* just exlicitly return (0) on the success path, rather than return (error)
terminate the check if options SMB was included
remove the #ifndef FB_CURRENT around f_mntonname; FB_CURRENT used to be defined
in netsmb headers, and this caused f_mntonname to not be initialized
terminate the messy code setting f_mntfromname, and use snprintf() instead
malloc types into a structure, a pointer to which is passed around,
instead of an int constant. Allow the limit to be adjusted when the
malloc type is defined, or with a function call, as suggested by
Jonathan Stone.
jdolecek