Commit Graph

27 Commits

Author SHA1 Message Date
hannken 8c21bc6224 Add ffs internal snapshots. Written by Marshall Kirk McKusick for FreeBSD.
- Not enabled by default. Needs kernel option FFS_SNAPSHOT.
- Change parameters of ffs_blkfree.
- Let the copy-on-write functions return an error so spec_strategy
    may fail if the copy-on-write fails.
- Change genfs_*lock*() to use vp->v_vnlock instead of &vp->v_lock.
- Add flag B_METAONLY to VOP_BALLOC to return indirect block buffer.
- Add a function ffs_checkfreefile needed for snapshot creation.
- Add special handling of snapshot files:
    Snapshots may not be opened for writing and the attributes are read-only.
    Use the mtime as the time this snapshot was taken.
    Deny mtime updates for snapshot files.
- Add function transferlockers to transfer any waiting processes from
  one lock to another.
- Add vfsop VFS_SNAPSHOT to take a snapshot and make it accessible through
  a vnode.
- Add snapshot support to ls, fsck_ffs and dump.

Welcome to 2.0F.

Approved by: Jason R. Thorpe <thorpej@netbsd.org>
2004-05-25 14:54:55 +00:00
atatat 53c625655c Sysctl descriptions under vfs subtree 2004-05-25 04:44:43 +00:00
atatat 10a7ba9ef6 Tweak sysctl setup functions (the macros, actually) for use in lkms,
and tweak lkminit_*.c (where applicable) to call them, and to call
sysctl_teardown() when being unloaded.

This consists of (1) making setup functions not be static when being
compiled as lkms (change to sys/sysctl.h), (2) making prototypes
visible for the various setup functions in header files (changes to
various header files), and (3) making simple "load" and "unload"
functions in the actual lkminit stuff.

linux_sysctl.c also needs its root exposed (ie, made not static) for
this (when built as an lkm).
2004-05-20 06:34:24 +00:00
atatat 1d3a6a329e Explicitly call pool_init() (and pool_destroy()) when being built as
an _LKM.

This adds pools to the list of things that lkms must do manually
because they're set up with link sets.  Not that there's anything
wrong with link sets, but that we need to try harder to remember that
lkms are second class citizens.  Of a sort.
2004-05-20 05:39:34 +00:00
jrf e3a43961ff Remove caddr_t inlines. Approved by christos@NetBSD.org. 2004-05-04 13:26:58 +00:00
jrf fc97fd571a First pass for some caddr_t removal and changes to get rid of it where we
no longer use and/or need it

	- removed casts from unionfs, deadfs and fdesc
	  (there are more to hunt down still)
	- changed vfs_quotactl args argumet from caddr_t to void *
	- changed vfs_quotactl structures/callers to reflect the api change

Compiled fine and ran for about a day. Approved/reviewed by
christos@netbsd.org and gimpy@netbsd.org.
2004-04-27 17:37:30 +00:00
simonb b5d0e6bf06 Initialise (most) pools from a link set instead of explicit calls
to pool_init.  Untouched pools are ones that either in arch-specific
code, or aren't initialiased during initial system startup.

 Convert struct session, ucred and lockf to pools.
2004-04-25 16:42:40 +00:00
christos 6bd1d6d4db Replace the statfs() family of system calls with statvfs().
Retain binary compatibility.
2004-04-21 01:05:31 +00:00
atatat 284a91c3ab Manually attach malloc types when being built as an lkm. 2004-03-27 04:43:43 +00:00
atatat 19af35fd0d Tango on sysctl_createv() and flags. The flags have all been renamed,
and sysctl_createv() now uses more arguments.
2004-03-24 15:34:46 +00:00
hannken d6170777cf Fix xxx_strategy() to use the vnode arg instead of bp->b_vp. 2004-01-26 10:39:29 +00:00
hannken 3db4e2acd8 Make VOP_STRATEGY(bp) a real VOP as discussed on tech-kern.
VOP_STRATEGY(bp) is replaced by one of two new functions:

- VOP_STRATEGY(vp, bp)  Call the strategy routine of vp for bp.
- DEV_STRATEGY(bp)      Call the d_strategy routine of bp->b_dev for bp.

DEV_STRATEGY(bp) is used only for block-to-block device situations.
2004-01-25 18:06:48 +00:00
atatat 13f8d2ce5f Dynamic sysctl.
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.
2003-12-04 19:38:21 +00:00
yamt 589e82f2ba terminate snprintb 'new' format strings correctly.
(fixes overrun in mount_*)
2003-10-03 16:34:31 +00:00
agc aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22364, verified by myself.
2003-08-07 16:26:28 +00:00
fvdl d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
2003-06-29 22:28:00 +00:00
thorpej a06b275edc Undo part of the ktrace/lwp changes. In particular:
* 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.
2003-06-29 18:43:21 +00:00
darrenr 960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
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
2003-06-28 14:20:43 +00:00
reinoud 0e1ab03bd7 Fix a botch in a boolean expression. Thanks to Martim Husemann for the fix
:)

PR kern/21816: Big DVD's with cd9660 fs (can) crash Alpha can be closed
allready :)
2003-06-07 12:00:07 +00:00
itojun 25b677f86d use strlcpy. check size if we are to use namei buffer. 2003-05-16 05:09:11 +00:00
christos 80ecd573c0 PR/1796: John Kohl: statfs misbehaves under chrooted environments.
- 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.
2003-04-16 21:44:18 +00:00
christos 510b8e4284 Avoid stupid printfs during mountroot attempt. 2003-04-03 15:37:55 +00:00
dsl bd99e3429d Use 'void *' instead of 'caddr_t' in prototypes of VOP_IOCTL, VOP_FCNTL
and VOP_ADVLOCK, delete casts from callers (and some to copyin/out).
2003-03-21 23:11:19 +00:00
thorpej b193480908 Add extensible malloc types, adapted from FreeBSD. This turns
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.
2003-02-01 06:23:35 +00:00
simonb c821903287 Remove variable that is only assigned too but not referenced. 2003-01-20 02:25:49 +00:00
wiz 5a91827c81 through, not throught. 2003-01-06 12:29:48 +00:00
jdolecek 3a8872dee7 move cd9660 filesystem code from sys/isofs/cd9660 to sys/fs/cd9660 2002-12-23 17:52:02 +00:00