Commit Graph

41 Commits

Author SHA1 Message Date
Tor Egge
5da56ddb21 Use mount interlock to protect all changes to mnt_flag and mnt_kern_flag.
This eliminates a race where MNT_UPDATE flag could be lost when nmount()
raced against sync(), sync_fsync() or quotactl().
2006-09-26 04:12:49 +00:00
John Baldwin
fe78538353 Lock the smb share before doing a 'put' on it in smbfs_unmount().
Tested by:	"Jiawei Ye" <leafy7382 at gmail>
2006-07-17 16:13:42 +00:00
Dag-Erling Smørgrav
0430a5e289 Eradicate caddr_t from the VFS API. 2005-12-14 00:49:52 +00:00
Tai-hwa Liang
8bfc230455 Recent nmount(2) adoption in mount_smbfs(8) did not flag the "long" option
since mount_smbfs(8) assumed long name mounting by default unless "-n long"
was explicitly specified.

Rather than supplying a "long" option in mount_smbfs(8), this commit brings
back the original behaviour by associating SMBFS_MOUNT_NO_LONG with the
"nolong" option.  This should fix the broken long file names on smbfs people
observed recently.

Reported by:	Vladimir Grebenschikov <vova at fbsd dot ru>
Reviewed by:	phk
Tested by:	Slawa Olhovchenkov <slw at zxy dot spb dot ru>
2005-12-05 19:05:06 +00:00
Craig Rodrigues
43fa5bf534 - Add errmsg to the list of smbfs mount options.
- Use vfs_mount_error() to propagate smbfs mount errors back to userspace.

Reviewed by:	bp (smbfs maintainer)
2005-11-16 02:26:25 +00:00
Robert Watson
5bb84bc84b Normalize a significant number of kernel malloc type names:
- Prefer '_' to ' ', as it results in more easily parsed results in
  memory monitoring tools such as vmstat.

- Remove punctuation that is incompatible with using memory type names
  as file names, such as '/' characters.

- Disambiguate some collisions by adding subsystem prefixes to some
  memory types.

- Generally prefer lower case to upper case.

- If the same type is defined in multiple architecture directories,
  attempt to use the same name in additional cases.

Not all instances were caught in this change, so more work is required to
finish this conversion.  Similar changes are required for UMA zone names.
2005-10-31 15:41:29 +00:00
Yaroslav Tykhiy
10d645b7e5 In preparation for making the modules actually use opt_*.h files
provided in the kernel build directory, fix modules that were
failing to build this way due to not quite correct kernel option
usage.  In particular:

ng_mppc.c uses two complementary options, both of which are listed
in sys/conf/files.  Ideally, there should be a separate option for
including ng_mppc.c in kernel build, but now only
NETGRAPH_MPPC_ENCRYPTION is usable anyway, the other one requires
proprietary files.

nwfs and smbfs were trying to ensure they were built with proper
network components, but the check was rather questionable.

Discussed with:	ru
2005-10-14 23:17:45 +00:00
Jeff Roberson
d9b2d9f7a2 - Update vfs_root implementations to match the new prototype. None of
these filesystems will support shared locks until they are explicitly
   modified to do so.  Careful review must be done to ensure that this
   is safe for each individual filesystem.

Sponsored by:	Isilon Systems, Inc.
2005-03-24 07:36:16 +00:00
Poul-Henning Kamp
f70f851c60 Make smbfs_debuglevel private. 2005-02-10 12:07:02 +00:00
Warner Losh
d167cf6f3a /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 18:10:42 +00:00
Poul-Henning Kamp
708394ec72 typo 2004-12-11 12:45:24 +00:00
Poul-Henning Kamp
d14c8441e9 Convert to nmount. Add omount compat.
Unpropagate the sm_args function into the runtime part.
2004-12-06 20:31:08 +00:00
Poul-Henning Kamp
743312367a VFS_STATFS(mp, ...) is mostly called with &mp->mnt_stat, but a few cases
doesn't.  Most of the implementations have grown weeds for this so they
copy some fields from mnt_stat if the passed argument isn't that.

Fix this the cleaner way:  Always call the implementation on mnt_stat
and copy that in toto to the VFS_STATFS argument if different.
2004-12-05 22:41:02 +00:00
Poul-Henning Kamp
964ebefd8d Use system wide no-op vfs_start function. 2004-11-25 09:11:27 +00:00
Poul-Henning Kamp
64042a76b6 Refuse attempts to mount root filesystem 2004-11-09 22:21:10 +00:00
Poul-Henning Kamp
5e8c582ac2 Put a version element in the VFS filesystem configuration structure
and refuse initializing filesystems with a wrong version.  This will
aid maintenance activites on the 5-stable branch.

s/vfs_mount/vfs_omount/

s/vfs_nmount/vfs_mount/

Name our filesystems mount function consistently.

Eliminate the namiedata argument to both vfs_mount and vfs_omount.
It was originally there to save stack space.  A few places abused
it to get hold of some credentials to pass around.  Effectively
it is unused.

Reorganize the root filesystem selection code.
2004-07-30 22:08:52 +00:00
Poul-Henning Kamp
d521eae21d Another LINT compilation fix 2004-07-13 09:47:27 +00:00
Alfred Perlstein
f257b7a54b Make VFS_ROOT() and vflush() take a thread argument.
This is to allow filesystems to decide based on the passed thread
which vnode to return.
Several filesystems used curthread, they now use the passed thread.
2004-07-12 08:14:09 +00:00
Dag-Erling Smørgrav
e4b3851568 Remove useless SMP check code. 2003-12-07 17:37:44 +00:00
Poul-Henning Kamp
1054ba63be Don't mess about with spare fields in public structures. 2003-11-12 09:52:10 +00:00
Max Khon
c4f02a891f - Support for multibyte charsets in LIBICONV.
- CD9660_ICONV, NTFS_ICONV and MSDOSFS_ICONV kernel options
(with corresponding modules).
- kiconv(3) for loadable charset conversion tables support.

Submitted by:	Ryuichiro Imura <imura@ryu16.org>
2003-09-26 20:26:25 +00:00
Peter Wemm
7d6207b7dd size_t != int. Make this compile on 64 bit platforms (eg: amd64).
Also, "u_short value; if (value > 0xffff)" can never be true.
2003-07-24 01:59:18 +00:00
Poul-Henning Kamp
7652131bee Initialize struct vfsops C99-sparsely.
Submitted by:   hmp
Reviewed by:	phk
2003-06-12 20:48:38 +00:00
Tim J. Robbins
788fc48e32 Give the M_WAITOK flag explicitly to the MALLOC call to silence a runtime
warning ("Bad malloc flags: 0").
2003-04-01 02:42:02 +00:00
Alexander Kabaev
c162e9c2eb Rename vfs_stdsync function to vfs_stdnosync which matches more
closely what function is really doing. Update all existing consumers
to use the new name.

Introduce a new vfs_stdsync function, which iterates over mount
point's vnodes and call FSYNC on each one of them in turn.

Make nwfs and smbfs use this new function instead of rolling their
own identical sync implementations.

Reviewed by:	jeff
2003-03-11 22:15:10 +00:00
Tim J. Robbins
fe72c63e22 Remove fragments of support for the FreeBSD 3.x and 4.x branches. 2003-03-06 10:38:18 +00:00
Tim J. Robbins
8e67c45462 Revert removal of vnode and VFS stubs; bp asserts that they are needed. 2003-02-08 05:48:04 +00:00
Tim J. Robbins
044b6f1d58 Garbage-collect stub VFS ops, use the defaults instead. 2003-02-07 14:34:29 +00:00
Tim J. Robbins
578dcf0c31 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 is
needed because smbfs vnodes reference their parent directory but may
appear after their parent in the mount's vnode list; one pass over the
list is not sufficient in this case.

This stops attempts to unmount idle smbfs mounts failing with EBUSY.
2002-12-13 23:44:00 +00:00
Jeff Roberson
4d93c0be1f - Use vrefcnt() where it is safe to do so instead of doing direct and
unlocked accesses to v_usecount.
 - Lock access to the buf lists in the various sync routines.  interlock
   locking could be avoided almost entirely in leaf filesystems if the
   fsync function had a generic helper.
2002-09-25 02:32:42 +00:00
Jeff Roberson
e6e370a7fe - Replace v_flag with v_iflag and v_vflag
- v_vflag is protected by the vnode lock and is used when synchronization
   with VOP calls is needed.
 - v_iflag is protected by interlock and is used for dealing with vnode
   management issues.  These flags include X/O LOCK, FREE, DOOMED, etc.
 - All accesses to v_iflag and v_vflag have either been locked or marked with
   mp_fixme's.
 - Many ASSERT_VOP_LOCKED calls have been added where the locking was not
   clear.
 - Many functions in vfs_subr.c were restructured to provide for stronger
   locking.

Idea stolen from:	BSD/OS
2002-08-04 10:29:36 +00:00
Tom Rhodes
d394511de3 More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
Boris Popov
3f36e6f21a Get rid from extra #ifdefs. 2002-04-23 13:55:14 +00:00
Poul-Henning Kamp
a1f1e35d8b Remove 3 instances of vm_zone.h inclusion. 2002-04-08 08:12:46 +00:00
Kirk McKusick
a0595d0249 Add a flags parameter to VFS_VGET to pass through the desired
locking flags when acquiring a vnode. The immediate purpose is
to allow polling lock requests (LK_NOWAIT) needed by soft updates
to avoid deadlock when enlisting other processes to help with
the background cleanup. For the future it will allow the use of
shared locks for read access to vnodes. This change touches a
lot of files as it affects most filesystems within the system.
It has been well tested on FFS, loopback, and CD-ROM filesystems.
only lightly on the others, so if you find a problem there, please
let me (mckusick@mckusick.com) know.
2002-03-17 01:25:47 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Sheldon Hearn
53f09e7248 Add module dependency on libmchain.
With this change, mounting an smb share (using mount_smb, which is not
yet included in the tree) without any of smbfs, libiconv or libmchain
compiled into the kernel or loaded works.
2001-12-13 13:08:34 +00:00
Boris Popov
b1c996c40b Catch up with KSE changes.
Submitted by:	Max Khon <fjoe@iclub.nsu.ru>
2001-12-02 08:56:58 +00:00
Matthew Dillon
c72ccd014d Change the vnode list under the mount point from a LIST to a TAILQ
in preparation for an implementation of limiting code for kern.maxvnodes.

MFC after:	3 days
2001-10-23 01:21:29 +00:00
Ian Dowse
0864ef1e8a Change the second argument of vflush() to an integer that specifies
the number of references on the filesystem root vnode to be both
expected and released. Many filesystems hold an extra reference on
the filesystem root vnode, which must be accounted for when
determining if the filesystem is busy and then released if it isn't
busy. The old `skipvp' approach required individual filesystem
xxx_unmount functions to re-implement much of vflush()'s logic to
deal with the root vnode.

All 9 filesystems that hold an extra reference on the root vnode
got the logic wrong in the case of forced unmounts, so `umount -f'
would always fail if there were any extra root vnode references.
Fix this issue centrally in vflush(), now that we can.

This commit also fixes a vnode reference leak in devfs, which could
result in idle devfs filesystems that refuse to unmount.

Reviewed by:	phk, bp
2001-05-16 18:04:37 +00:00
Boris Popov
681a5bbef2 Import kernel part of SMB/CIFS requester.
Add smbfs(CIFS) filesystem.

Userland part will be in the ports tree for a while.

Obtained from:	smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00