take unsigned values.
his allows one to label disk with the number of blocks > 31 bits
(though less then 32 bits)
e.g.
# size offset fstype [fsize bsize bps/cpg]
c: 3125755904 0 unused 0 0 # (Cyl. 0 - 194569*)
d: 3125755840 64 unused 0 0 # (Cyl. 0*- 194569*)
which is needd to test UFS2
also add rusage time in thread mailbox.
2. Minor change for thread limit code in thread_user_enter(),
fix typo in kse_release() last I committed.
Reviewed by: deischen, mini
- Clear the PG_WRITEABLE flag in pmap_changebit() if write access is
being removed. Return immediately if write access is being removed and
PG_WRITEABLE is already clear.
Note: For efficiency, pmap_changebit() should be replaced by a function
similar to sparc64's pmap_clear_write().
- Clear the PG_WRITEABLE flag in pmap_page_protect() if write access is
being removed. Return immediately if write access is being removed and
PG_WRITEABLE is already clear.
so that it can be reused elsewhere (there is a number of places
where it can be useful). This also trims some 200 lines from
the body of ip_output(), which helps readability a bit.
(This change was discussed a few weeks ago on the mailing lists,
Julian agreed, silence from others. It is not a functional change,
so i expect it to be ok to commit it now but i am happy to back it
out if there are objections).
While at it, fix some function headers and replace m_copy() with
m_copypacket() where applicable.
MFC after: 1 week
2. Avoid referencing bcopy() and bzero(), since they may not be in
scope.
Request by: bde (1)
Submitted by: wollman (2)
Reviewed by: archie, bde
PR: 43270
Replace m_copy() with m_copypacket() where applicable.
Replace "if (a.s_addr ...)" with "if (a.s_addr != INADDR_ANY ...)"
to make it clear what the code means.
While at it, fix some function headers and remove 'register' from
variable declarations.
MFC after: 3 days
trigger a breakpoint with this chip.
- Fiddle the right bits in the cn input and output routines to disable port
interrupts and enable visibility of the masked interrupt status bits.
- Register a shutdown final event handler to put the chip back in the mode
that the prom expects.
kern.threads.max_threads_per_proc
kern.threads.max_groups_per_proc
2.Temporary disable borrower thread stash itself as
owner thread's spare thread in thread_exit(). there
is a race between owner thread and borrow thread:
an owner thread may allocate a spare thread as this:
if (td->td_standin == NULL)
td->standin = thread_alloc();
but thread_alloc() can block the thread, then a borrower
thread would possible stash it self as owner's spare
thread in thread_exit(), after owner is resumed, result
is a thread leak in kernel, double check in owner can
avoid the race, but it may be ugly and not worth to do.
I've no idea if this is the right behavior for the library, but this
at least fixes the build, and matches what seems to be alfred's intent
in the commit message for 1.19.
sysconf.c:
Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0'
return value from the kernel sysctl.
vfs_aio.c:
Make aio reset its configuration parameters to -1 after unloading
instead of 0.
posix4_mib.c:
Initialize the aio configuration parameters to -1
to indicate that it is not loaded.
Add a facility (p31b_iscfg()) to determine if a posix4 facility has been
initialized to avoid having to re-order the SYSINITs.
Use p31b_iscfg() to determine if aio has had a chance to run yet which
is likely if it is compiled into the kernel and avoid spamming its
values.
Introduce a macro P31B_VALID() instead of doing the same comparison over
and over.
posix4.h:
Prototype p31b_iscfg().
Both are atomic, but the cmpxchg has memory ordering hints. We
give this acquire semantics.
NOTE: The unlock in libc_r is implemented by a "normal" assign
statement. This is not correct on ia64 due to the memory ordering
characteristics of the architecture. We need release semantics
for an unlock.
