| Commit message (Collapse) | Author | Age | Files | Lines |
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calls MiniportQueryInformation(), it will return NDIS_STATUS_PENDING.
When this happens, ndis_get_info() will sleep waiting for a completion
event. If two threads call ndis_get_info() and both end up having to
sleep, they will both end up waiting on the same wait channel, which
can cause a panic in sleepq_add() if INVARIANTS are turned on.
Fix this by having ndis_get_info() use a common mutex rather than
using the process mutex with PROC_LOCK(). Also do the same for
ndis_set_info(). Note that Pierre's original patch also made ndis_thsuspend()
use the new mutex, but ndis_thsuspend() shouldn't need this since
it will make each thread that calls it sleep on a unique wait channel.
Also, it occured to me that we probably don't want to enter
MiniportQueryInformation() or MiniportSetInformation() from more
than one thread at any given time, so now we acquire a Windows
spinlock before calling either of them. The Microsoft documentation
says that MiniportQueryInformation() and MiniportSetInformation()
are called at DISPATCH_LEVEL, and previously we would call
KeRaiseIrql() to set the IRQL to DISPATCH_LEVEL before entering
either routine, but this only guarantees mutual exclusion on
uniprocessor machines. To make it SMP safe, we need to use a real
spinlock. For now, I'm abusing the spinlock embedded in the
NDIS_MINIPORT_BLOCK structure for this purpose. (This may need to be
applied to some of the other routines in kern_ndis.c at a later date.)
Export ntoskrnl_init_lock() (KeInitializeSpinlock()) from subr_ntoskrnl.c
since we need to use in in kern_ndis.c, and since it's technically part
of the Windows kernel DDK API along with the other spinlock routines. Use
it in subr_ndis.c too rather than frobbing the spinlock directly.
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basically support this, subject to gcc's lack of FENV_ACCESS support.
In any case, the previous setting of math_errhandling to 0 is not
allowed by POSIX.
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initialized. We already cancel the pending events but we need to not
dereference the geom pointer which never got set different from NULL.
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cpu_exit() as this is already performed in cpu_thread_exit() and the
debug state is per-thread rather than per-process.
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the last action of kern_exit(). Instead, it is a MD callout to cleanup
per-process state during exit.
- Add notes of concern to Alpha and ia64 about the possible need to drop
fp state in cpu_thread_exit() rather than in cpu_exit() since it is
per-thread state rather than per-process.
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the rest of the interrupt code.
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dealing with sudo users.
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d_namlen and assume that d_name is null-terminated.
Submitted by: Andriy Gapon
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that are used. Thanks to Bruce Evans for pointing this out.
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their sizeof(*p) instead of explicitlly specifying their types.
Suggested by: nectar
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corresponding documentation.
Noticed by: ru
Reviewed by: ru
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e.g, CLOCK_REALTIME or CLOCK_MONOTONIC.
merge umtx_wait and umtx_timedwait into single function.
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of the meaning.
Suggested by: stefanf
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- Convert the (char *) cast+cast backs magic to
memcpy(3). Without this, the resulting code
is potentially risky with higher optimization
levels.
- Avoid same name when calling local variables,
as well as global symbols. This reduces
confusion for both human and compiler.
- Add necessary casts, consts
- Use new style function defination.
- Minor style.Makefile(5) tweak
- Bump WARNS?= from 0 to 6
** for the aout code: changes are intentionally limited
to ease maintaince.
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messages.
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"operationally up" flag. Hence this, revert 1.35 to use IFF_RUNNING.
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which included commits to RCS files with non-trunk default branches.
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- ip_fw_chk() returns action as function return value. Field retval is
removed from args structure. Action is not flag any more. It is one
of integer constants.
- Any action-specific cookies are returned either in new "cookie" field
in args structure (dummynet, future netgraph glue), or in mbuf tag
attached to packet (divert, tee, some future action).
o Convert parsing of return value from ip_fw_chk() in ipfw_check_{in,out}()
to a switch structure, so that the functions are more readable, and a future
actions can be added with less modifications.
Approved by: andre
MFC after: 2 months
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registers as volatile. Instructions that *wrote* to FP state were
already marked volatile, but apparently gcc has license to move
non-volatile asms past volatile asms. This broke amd64's feupdateenv
at -O2 due to a WAR conflict between fnstsw and fldenv there.
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which included commits to RCS files with non-trunk default branches.
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dsutils.c. We need to GC the implicitly-returned object.
Submitted by: Robert.Moore at Intel
MFC after: 1 day
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Submitted by: Jung-uk Kim <jkim@niksun.com>
Use positive, not negative logic.
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Submitted by: Jung-uk Kim <jkim@niksun.com>
(patch reworked by me)
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Obtained from: ru
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Approved by: imp, jon
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Approved by: imp, jon
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