standard way (including the nulterm byte in the data returned to userland).
This augments the existing sysctl_handle_string() in that this can be used
with const strings without ugly inappropriate casting.
On parallel random I/O this allows better utilize wide storage pools.
To not confuse prefetcher on linear I/O, consecutive requests are executed
sequentially, following the same logic as was earlier implemented in CTL.
Benchmarks of virtual AHCI disk, backed by ZVOL on RAID10 pool of 4 HDDs,
show ~3.5 times random read performance improvements, while no degradation
on linear I/O.
MFC after: 2 weeks
If zvol_geom_start is called with a BIO_DELETE from a thread which can
sleep it queues it for later processing by the zvol_geom_worker. The
zvol_geom_worker didn't have a delete case so would simply loose the bio
hence preventing the original caller from every completing. In addition
an other unknown types would suffer the same fate.
Allow zvol_geom_worker to process BIO_DELETE's via zvol_strategy and
return unsupported for all unknown bio types.
MFC after: 2 weeks
Sponsored by: Multiplay
strings returned to userland include the nulterm byte.
Some uses of sbuf_new_for_sysctl() write binary data rather than strings;
clear the SBUF_INCLUDENUL flag after calling sbuf_new_for_sysctl() in
those cases. (Note that the sbuf code still automatically adds a nulterm
byte in sbuf_finish(), but since it's not included in the length it won't
get copied to userland along with the binary data.)
Remove explicit adding of a nulterm byte in a couple places now that it
gets done automatically by the sbuf drain code.
PR: 195668
The SBUF_INCLUDENUL flag causes the nulterm byte at the end of the string
to be counted in the length of the data. If copying the data using the
sbuf_data() and sbuf_len() functions, or if writing it automatically with
a drain function, the net effect is that the nulterm byte is copied along
with the rest of the data.
The restore utility already knows the full-resolution timestamps, so the
only thing to do is to stop converting the timespecs to timevals and use
futimens() and utimensat().
Differential Revision: https://reviews.freebsd.org/D2020
Reviewed by: jhb
Refactor float to integer conversion to share the same code.
80bit Intel/PPC long double is excluded due to lacking support
for the abstraction. Consistently provide saturation logic.
Extend to long double on 128bit IEEE extended platforms.
Initial patch with test cases from GuanHong Liu.
Reviewed by Steve Canon.
Differential Revision: http://reviews.llvm.org/D2804
Pull in r232107 from upstream compiler-rt trunk (by Ed Maste):
Use signed int implementation for __fixint
Requested by: emaste
which includes more than one file with the same name, in different
directories.
For example, setting:
SRCS+= foo/foo.c bar/foo.c baz/foo.c
will now create separate objdirs 'foo', 'bar' and 'baz' for each of the
sources in the list, and use those objdirs for the corresponding object
files.
Reviewed by: brooks, imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D1984
vectors to be dynamically allocated. This allows kernel modules like vmm.ko
to allocate unique IPI slots when loaded (as opposed to hard allocating one
or more vectors).
Also, reorganize the fixed IPI vectors to create a contiguous space for
dynamic IPI allocation.
Reviewed by: kib, jhb
Differential Revision: https://reviews.freebsd.org/D2042
It works only for virtual disks backed by ZVOLs and raw devices supporting
BIO_DELETE. Virtual disks backed by files won't report this capability.
MFC after: 2 weeks
Relnotes: yes
directly in the O_FORWARD_IP6 opcode. Use getnameinfo(3) to formatting
the IPv6 addresses of such opcodes.
Obtained from: Yandex LLC
Sponsored by: Yandex LLC
