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r380 | des | 2006-03-14 15:42:09 +0100 (Tue, 14 Mar 2006) | 1 line
Fix signedness mismatch, and use an explicit cast when calling ctype functions.
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New release notes:
- PIM option now included in MROUTING
- MSI support + MFC
- TCP_DROP_SYNFIN compiled in by default
- FICL updated to 3.03
- icee driver added
- net.link.tap.up_on_open sysctl added
- ZFS support added
Added the IPLware 3.33 support.
- Added magic numbers to pretend the NEC original program version
2.70.
- Added string display routine with Shift-JIS code support.
- Added three nop instructions at start1 in start.s since the
installaer of the IPLware put 'call $0x09ab' instruction.
- Put the near return instruction at 0x9ab in selector.s.
Since the Shit-JIS display routine must be located at 0x1243, the
linker script file (ldscript) is applied.
Colin Percival [Sat, 7 Apr 2007 03:37:59 +0000 (03:37 +0000)]
When copying data from one archive to another, only set the error
message in the reader to the error message from the writer if the
error which occurred was in the writer. This avoids error messages
of "Empty error message" when extracting truncated archives.
Robert Watson [Fri, 6 Apr 2007 23:31:30 +0000 (23:31 +0000)]
Remove XXX comment that changes to file fields should be protected with
the file lock rather than the filedesc lock: I fixed this in the last
revision.
pc98 boot2 is compiled with _KERNEL defined, and that makes non-static
bootinfo variable declaration visible. It conflicts with static
declaration in this file. Declare variable as globally visible in
order to resolve the conflict.
If we've encountered unrecognized chipset don't access hardware
anymore. Previously it tried to access interrupt register to disable
interrupts which could result in hang if the hardware was not
properly initialized by system BIOS/ACPI.
Tested by: Benjamin Hansmann (benjamin.hansmann AT rub dot de)
MFC after: 3 days
It may be used for external modules to attach some data to jail's in-kernel
structure.
- Change allprison_mtx mutex to allprison_sx sx(9) lock.
We will need to call external functions while holding this lock, which may
want to allocate memory.
Make use of the fact that this is shared-exclusive lock and use shared
version when possible.
- Implement the following functions:
prison_service_register() - registers a service that wants to be noticed
when a jail is created and destroyed
prison_service_deregister() - deregisters service
prison_service_data_add() - adds service-specific data to the jail structure
prison_service_data_get() - takes service-specific data from the jail
structure
prison_service_data_del() - removes service-specific data from the jail
structure
Add trivial MI memset function implementation. GCC mandates the
existence of this function as a linkable symbol in standalone
configurations and existing inline memcpy from libkern.h fails
this requirement.
Add security.jail.mount_allowed sysctl, which allows to mount and
unmount jail-friendly file systems from within a jail.
Precisely it grants PRIV_VFS_MOUNT, PRIV_VFS_UNMOUNT and
PRIV_VFS_MOUNT_NONUSER privileges for a jailed super-user.
It is turned off by default.
A jail-friendly file system is a file system which driver registers
itself with VFCF_JAIL flag via VFS_SET(9) API.
The lsvfs(1) command can be used to see which file systems are
jail-friendly ones.
There currently no jail-friendly file systems, ZFS will be the first one.
In the future we may consider marking file systems like nullfs as
jail-friendly.
Fix a problem for file systems that don't implement VOP_BMAP() operation.
The problem is this: vm_fault_additional_pages() calls vm_pager_has_page(),
which calls vnode_pager_haspage(). Now when VOP_BMAP() returns an error (eg.
EOPNOTSUPP), vnode_pager_haspage() returns TRUE without initializing 'before'
and 'after' arguments, so we have some accidental values there. This bascially
was causing this condition to be meet:
Colin Percival [Thu, 5 Apr 2007 15:51:19 +0000 (15:51 +0000)]
Move archive_read_data_into_buffer into archive_read.c, simplify its
implementation, and mark it as deprecated. It will be removed entirely
in libarchive 3.0 (in FreeBSD 8.0?) but there's no reason for anyone to
use it instead of archive_read_data.
David Xu [Thu, 5 Apr 2007 07:20:31 +0000 (07:20 +0000)]
If a thread who's name is being set is not the current thread, use macros
THR_THREAD_LOCK and THR_THREAD_UNLOCK instead, this should fix wrong
lock level problem.
Xin LI [Thu, 5 Apr 2007 02:07:33 +0000 (02:07 +0000)]
Avoid using intermediate variables by just comparing between
two values, the latter does not tend to have sign extension
and/or overflow bugs, and makes the code more obvious.
While I'm there, make use of a macro which is derived from
bin/ps/ps.c: ps_compat() to improve the readability of the
code.
Andre Oppermann [Wed, 4 Apr 2007 16:13:45 +0000 (16:13 +0000)]
Move last tcpcb initialization for the inbound connection case from
tcp_input() to syncache_socket() where it belongs and the majority
of it already happens.
The "tp->snd_up = tp->snd_una" is removed as it is done with the
tcp_sendseqinit() macro a few lines earlier.
A dash as an argument to the -f option will now cause lastcomm to
read data from the standard input. This allows tail -f to pipe
data to lastcomm, and thereby real-time monitoring of executed
commands. The manual page includes the exact incantation.
Robert Watson [Wed, 4 Apr 2007 09:11:34 +0000 (09:11 +0000)]
Replace custom file descriptor array sleep lock constructed using a mutex
and flags with an sxlock. This leads to a significant and measurable
performance improvement as a result of access to shared locking for
frequent lookup operations, reduced general overhead, and reduced overhead
in the event of contention. All of these are imported for threaded
applications where simultaneous access to a shared file descriptor array
occurs frequently. Kris has reported 2x-4x transaction rate improvements
on 8-core MySQL benchmarks; smaller improvements can be expected for many
workloads as a result of reduced overhead.
- Generally eliminate the distinction between "fast" and regular
acquisisition of the filedesc lock; the plan is that they will now all
be fast. Change all locking instances to either shared or exclusive
locks.
- Correct a bug (pointed out by kib) in fdfree() where previously msleep()
was called without the mutex held; sx_sleep() is now always called with
the sxlock held exclusively.
- Universally hold the struct file lock over changes to struct file,
rather than the filedesc lock or no lock. Always update the f_ops
field last. A further memory barrier is required here in the future
(discussed with jhb).
- Improve locking and reference management in linux_at(), which fails to
properly acquire vnode references before using vnode pointers. Annotate
improper use of vn_fullpath(), which will be replaced at a future date.
In fcntl(), we conservatively acquire an exclusive lock, even though in
some cases a shared lock may be sufficient, which should be revisited.
The dropping of the filedesc lock in fdgrowtable() is no longer required
as the sxlock can be held over the sleep operation; we should consider
removing that (pointed out by attilio).
Tested by: kris
Discussed with: jhb, kris, attilio, jeff
projects / FreeBSD / FreeBSD.git / log