previous commit:
Include <sys/mutex.h> and its prerequisite <sys/lock.h> instead of
depending on namespace pollution in <sys/buf.h>. Only do this in the
__FreeBSD_version > 500000 case although the __FreeBSD_version < 500000
case has already rotted.
functions. We add pnpinfo, locationinfo, devflags (the newbus flags
on the device), flags (the flags that device_get_flags returns) and
state to the list of things we return.
pnpinfo and locationinfo are place holders at the moment that will be
filled in by the device's parent (optionally). Userland programs will
likely use this information from time to time and take appropriate
actions.
Improvements to devinfo to follow.
recursion when closef() calls pfind() which also wants the proc lock.
This case only occurred when setugidsafety() needed to close unsafe files.
Reviewed by: truckman
v_tag is now const char * and should only be used for debugging.
Additionally:
1. All users of VT_NTS now check vfsconf->vf_type VFCF_NETWORK
2. The user of VT_PROCFS now checks for the new flag VV_PROCDEP, which
is propagated by pseudofs to all child vnodes if the fs sets PFS_PROCDEP.
Suggested by: phk
Reviewed by: bde, rwatson (earlier version)
build on, let alone actually do some useful work on real hardware.
Namely, put it in i386/pc98. There is no bus_dma.h on the other architecures,
tra la.
insure enough space is available for the response, or be prepared
to resize the buffer and retry as necessary.
Do the conservative thing and make sure enough space is available.
Reviewed by: silence on freebsd-audit
file so that we have a chance of using gcore on non-i386 platforms. Use
linker sets to reduce the registration glue. Remove md-sparc.c, we do not
have an a.out sparc32 port. aoutcore.c was repocopied from gcore.c.
When it is called directly, gcc is smart enough to generate inline
code for it, which is why it wasn't noticed before that it was missing.
fabs() would probably better fit into libm, but it has traditionally been
in libc on FreeBSD, so there is probably software around that makes
assumptions about this by now.
If somebody wanted to, this could for the beginning of a "libkernel"
which could be used to run kernel code in userland.
Sponsored by: DARPA & NAI Labs.
Introduce biowait() function. Currently there is a race condition and the
mitigation is a timeout/retry. It is not obvious what kind of locking (if any)
is suitable for BIO_DONE, since the majority of users take are of this
themselves, and only a few places actually rely on the wakeup.
Sponsored by: DARPA & NAI Labs.
them visible from userland, if need be.
I wish that the C language contained this as part of struct definintions,
but failing that, I would settle for an agreed upon set of functions for
packing/unpacking integers in various sizes from byte-streams which may
have unfriendly alignment.
This really belongs in <sys/endian.h> I guess.
