Commit graph

14 commits

Author SHA1 Message Date
Tor Egge
61b9d89ff0 Make insmntque() externally visibile and allow it to fail (e.g. during
late stages of unmount).  On failure, the vnode is recycled.

Add insmntque1(), to allow for file system specific cleanup when
recycling vnode on failure.

Change getnewvnode() to no longer call insmntque().  Previously,
embryonic vnodes were put onto the list of vnode belonging to a file
system, which is unsafe for a file system marked MPSAFE.

Change vfs_hash_insert() to no longer lock the vnode.  The caller now
has that responsibility.

Change most file systems to lock the vnode and call insmntque() or
insmntque1() after a new vnode has been sufficiently setup.  Handle
failed insmntque*() calls by propagating errors to callers, possibly
after some file system specific cleanup.

Approved by:	re (kensmith)
Reviewed by:	kib
In collaboration with:	kib
2007-03-13 01:50:27 +00:00
Pawel Jakub Dawidek
10bcafe9ab Move vnode-to-file-handle translation from vfs_vptofh to vop_vptofh method.
This way we may support multiple structures in v_data vnode field within
one file system without using black magic.

Vnode-to-file-handle should be VOP in the first place, but was made VFS
operation to keep interface as compatible as possible with SUN's VFS.
BTW. Now Solaris also implements vnode-to-file-handle as VOP operation.

VFS_VPTOFH() was left for API backward compatibility, but is marked for
removal before 8.0-RELEASE.

Approved by:	mckusick
Discussed with:	many (on IRC)
Tested with:	ufs, msdosfs, cd9660, nullfs and zfs
2007-02-15 22:08:35 +00:00
Robert Watson
acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
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
Craig Rodrigues
4ca073e86c Remove calls to vfs_export() for exporting a filesystem for NFS mounting
from individual filesystems.  Call it instead in vfs_mount.c,
after we call VFS_MOUNT() for a specific filesystem.

Approved by:	dumbbell
2006-05-26 11:58:30 +00:00
Jean-Sébastien Pédron
566abf420d Don't hold a reference to the disk vnode for each inode. 2006-01-05 19:27:07 +00:00
Ruslan Ermilov
b2be20597c Oops, the bug is still here, but reimplement the cpp(1) conditional properly. 2005-12-04 09:57:09 +00:00
Ruslan Ermilov
44dbe53f04 There no longer seems to be this bug in gcc(1). Remove the
badly implemented workaround that caused a workaround to be
applied to all architectures, not only amd64.
2005-12-04 09:47:20 +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
Jean-Sébastien Pédron
9d575322b0 Apply the same fix to a potential race in the ISDOTDOT code
in reiserfs_lookup() that was used to fix an actual race in
ufs_lookup.c:1.78. This is not currently a hazard, but the
bug would be activated by marking reiserfs as MPSAFE.

Reviewed by:	mux (mentor)
MFC after:	2 weeks
2005-10-21 09:15:26 +00:00
Suleiman Souhlal
68da388325 Unbreak hpfs/ntfs/udf/ext2fs/reiserfs mounting.
Another pointyhat to:	ssouhlal
2005-09-03 20:23:41 +00:00
Suleiman Souhlal
75d7ba93af *_mountfs() (if the filesystem mounts from a device) needs devvp to be
locked, so lock it.

Glanced at by:	phk
MFC after:	3 days
2005-09-02 15:27:23 +00:00
Jean-Sébastien Pédron
7445b5118d Replace the use if ext2fs' bitops by bitstring.h macros. This fixes
portability issues. Also note that for amd64, a hack is used to work
around gcc optimization (thanks to cognet@).

Reviewed by:	mux (mentor)
Approved by:	re (dougb)
2005-06-21 10:11:13 +00:00
Jean-Sébastien Pédron
d6d3f5ac42 Moving reiserfs from sys/gnu to sys/gnu/fs. This was discussed on arch@.
Reviewed by:	mux (mentor)
Approved by:	re (scottl)
2005-06-18 17:10:50 +00:00