by config(8):
- Make the vfs ops and vnodeop_opv symbols match the name of the
file-system option used to configure the file system into the kernel.
- Now that sys_mount() has mountcompatnames[], remove the holes previously
used to preserve ordering for COMPAT_09 and COMPAT_43 mount system calls.
Also, add a comment that describes how I feel about the existence of this
file.
which maps the old file system index numbers to the new (well, since after
NetBSD 0.9) string-based method of finding a file system ops vector. Use
this table rather than assuming the ordering of the vfssw[] array when
emulating the old mount system call.
- New function change_utimes() to set access and modification times
given a vnode.
- In the function sys_chmod() and sys_fchmod(), call change_mode().
- In the function sys_utimes() and sys_futimes(), call
change_utimes().
unmounting all of the file systems. If we encounter a condition where
all of the dirty buffers could not flush, then don't unmount file systems,
since it might be likely to wedge.
msgbuf. Note that old 'dmesg' and 'syslogd' binaries will continue running,
though old 'dmesg' binaries will output a few bytes of junk at the start of
the buffer, and will miss a few bytes at the end of the buffer.
anon cred are the same. Should probably be handled better in the mountd,
but this will do for now. Fixes PR 469, submitted Sept 1994 by
a certain "Jason R. Thorpe".. ;-)
`b_dev' value of NODEV happens and is normal if the buffer is on its way
to the underlying device strategy function for the first time.
Also, MFS sillily uses a major device number (255) which cannot be used
to index bdevsw[]. Check marked with XXXs.
call biowait() but return `success' immediately. We can return `success'
because buffers with recorded errors are not returned by getblk().
(Takes care of PR#3694).
possibly unused (with __attribute__ ((unused))), to avoid generating
warnings when compiling without optimization but with most ports' default
warning flags.
socket names:
- In unp_setsockaddr() and unp_setpeeraddr(), if the socket name can't
fit into a single mbuf, allocate enough external storage space to
hold it.
- In unp_bind() and unp_connect(), perform a similar operation, but allocate
one extra byte, and ensure that the pathname is nul-terminated.
Many thanks to enami tsugutomo <enami@cv.sony.co.jp> for the sanity
checking.
- Add a comment describing my feelings about this interface, in general.
- Remove the COMPAT_OLDSOCK length hack. Instead, if the socket argument
is too long to fit in an mbuf, allocate enough external storage to
hold it.
- If the socket argument is a sockaddr, don't allow the length to be
greater than 255, as that would overflow sa_len.
Many thanks to enami tsugutomo <enami@cv.sony.co.jp> for his sanity checking.
the format modifer. Reported by and suggested fix from Daniel G. Pouzzner
in PR #2633. Final fix is slightly different now that we support the %q
modifier. This fix also includes the equivalent fix for sprintf().
- Disallow < 1 values for SO_SNDBUF, SO_RCVBUF, SO_SNDLOWAT, and
SO_RCVLOWAT; return EINVAL if the user attempts to set <= 0.
Inspired by PR #3770, from Havard Eidnes <he@vader.runit.sintef.no>.
- For SO_SNDLOWAT and SO_RCVLOWAT, don't let the low-water mark get
set above the high-water mark. Behavior is now consistent with
BSD/OS: If such an attempt is made, silently truncate to the high-water
value.
- If RB_ASKNAME, prompt for the dump device, defaulting to
partition 'b' of the root device, if the root device is a disk.
- Else, if dumpspec is set to "none", do not configure a dump device.
- Else, if dumpspec is set by config(8), attempt to use that device.
- Else, dumpspec is wildcarded or unspecified; if the root device is
a disk, select partition b. (which was the previous default dump
partition)
Note, dumps to a local disk now work even if root is on nfs.
so that if the drop to spl0() causes another panic (e.g. because there's
still some fatal hardware interrupt that's pending) we'll know that we
dropped IPL to sync the disks.
__VM_PMAP_HACK is defined (for temporary compatibility).
The __VM_PMAP_HACK code should be removed after all the
ports that define it have removed all vm_pmap references.
fill the socket's creation time into the stat structure's st_[acm]time fields:
POSIX requires this behavior for pipe(2). N.B.: updating the st_[am]time fields
when reading/writing the pipe is neither required nor implemented, though.
(1): "substart == ex->ex_end" and "subend == ex->ex_start"
are completely legal parameters for extent_alloc_subregion()
(2): "(subend - substart) + 1" can cause an overflow if the whole
numeric range is covered by the extent.
Submitted by Matthias Drochner <drochner@zelz26.zel.kfa-juelich.de>
in PR #3119.
1) Eliminate all of the null component name special cases; handle runs of
slashes and leading and trailing slashes completely differently.
2) Return ENOENT when doing a lookup through an empty symlink.
3) Enforce that we're doing a lookup through a directory in in chdir() and
lookup() rather than in foo_lookup().
Not yet finished.
have any signals delivered while exiting, so this should be okay. Change the
test for a traced process in wait4() to exclude a process that was started by
the debugger; in this case, only one SIGCHLD should be delivered.
* When a delayed write buffer falls off the LRU queue, arrange for it to go on
the AGE queue after being flushed out to disk.
* When a delayed write buffer is synced, leave it in its relative position in
the LRU queue.
(1) "" no longer refers to the current working directory;
looking this up will now result in ENOENT.
(2) by stripping off trailing slashes and setting a `forcedir'
flag, make code such as { mkdir("dir", m); rmdir("dir/"); }
actually work.
external storage. Highlights:
- additional "void *" argument to (*ext_free)(), an opaque
cookie for use by the free function.
- MCLALLOC() and MCLFREE() calls are gone. They are replaced
by MEXTADD() (add external storage to mbuf), MEXTMALLOC()
(malloc() external storage and attach to mbuf), and
MEXTREMOVE() (remove external storage from mbuf).
- completely new external storage reference counting
mechanism; mclrefcnt[] is gone.
These changes will eventually be used to pass driver DMA buffers up
the network stack, and reduce/eliminate copies in certain code paths
(e.g. NFS writes).
From Matt Thomas <matt@3am-software.com> and myself <thorpej@nas.nasa.gov>,
with some input from Chris Demetriou <cgd@cs.cmu.edu> and review by
Charles Hannum <mycroft@mit.edu>.
Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.
For the detailed change history, look at the commit log entries for
the is-newarp branch.
work. Not quite as good as with the Lite2 merges, but it'll do until then.
* dounmount() expects to be called with the mountpoint marked busy
* all callers of dounmount() thus make the call themselves
* if a filesystem was being unmounted, and we're woken up in vfs_busy(),
don't reference the mountpoint struct pointer, as it has very probably
been freed.
in the assembly file genassym.s into the usual assym.h file. The
assym.h file generated this way is identical to the output generated
if I simply compile and run the genassym.s file. "Heh, Kewl!"
Thanks to Matthias Pfaller for the "translate the .s file" idea!
* prototype it before it is used (several ports compile with
-Wstrict-prototypes -Wmissing-prototypes), so this is _necessary_.
* conform to C syntax (yes, that's right, it wouldn't parse).
* make error check less error-prone, + style fixups.
mount the root file system. If the operator specified the root
file system type in the kernel configuration file, attempt to
mount that file system type on the root device. If the root
file system type was wildcarded (or unspecified), try all of
the file systems statically built into the kernel until one
succeeds. If no file systems succeed, return an error. The
system will recover from this condition.
- Implement vfs_getopsbyname(). This function returns the file
system ops vector given a file system name.
from the version used by NetBSD/alpha, with several changes by me.
Support for asking for root device and root file system type on any
kernel, obsoleting "options GENERIC".
- Make my mountroothook implementation used by the sparc and x68k
ports machine-independent, and use it here. Mountroothooks allow
devices to execute special functions before being mounted as the
root device (such as ejecting the floppy and prompting for a new
floppy disk).
- Make swapconf() machine-independent. It was identical on all ports.
- Run mountroot hooks before we attempt to mount the root device, and
destroy mountroot hooks after the root file system has been sucessfully
mounted.
- Don't panic if we can't mount root. Instead, set RB_ASKNAME and
call setroot(), which will prompt the operator for the root device
and file system type.
