directly pass the request otherwise use a buffer that is a
multiple of the media size. This speeds up I/O quite a bit
when using large transfer sizes on 4Kn disks etc.
MFC after: 1 week
indicate that threads are waiting for free pages to become available and
(2) to indicate whether a wakeup call has been sent to the page daemon.
The trouble is that a single flag cannot really serve both purposes, because
we have two distinct targets for when to wakeup threads waiting for free
pages versus when the page daemon has completed its work. In particular,
the flag will be cleared by vm_page_free() before the page daemon has met
its target, and this can lead to the OOM killer being invoked prematurely.
To address this problem, a new flag "vm_pageout_wanted" is introduced.
Discussed with: jeff
Reviewed by: kib, markj
Tested by: markj
Sponsored by: EMC / Isilon Storage Division
t.verify_test = true is always set when -V is specified, regardless of whether
or not the tool is being run in raw mode
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
This will help ensure that we're not using random garbage on the stack by
accident with respect to the variable
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
includes the FDT option. Use OPT_FDT to conditionally compile modules
that require FDT support.
In the past we've gotten away with using the arch name as a proxy for FDT
support in makefile conditional logic, but now mips has some platforms with
fdt support and some without and we need a more direct test.
The lock was temporarily dropped for vrele calls, but they can be
postponed to a point where the lock is not held in the first place.
While here shuffle other code not needing the lock.
former return the current status for the latter to use. Without this we
could enable interrupts when they shouldn't be.
It's still not quite right as it should only update the bits we care about,
bit should be good enough until the correct fix can be tested.
PR: 204270
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Use for forever loop instead of while.
Found by lint on illumos.
Submitted by: Garrett D'Amore <garrett at damore.org>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
When bhyve cannot open a backing file, it now says explicitly which file
could not be opened
Note that the change has only be maed in block_if.c and not in
pci_virtio_block.c as the error will always be catched by the first
PR: 202321 (different patch)
Reviewed by: grehan
MFC after: 3 day
Sponsored by: Gandi.net
Differential Revision: https://reviews.freebsd.org/D6576
Both cd and xprt will be non-NULL after their respective malloc(9) wrappers are
called (mem_alloc and svc_xprt_alloc, which calls mem_alloc) as mem_alloc
always gets called with M_WAITOK|M_ZERO today. Thus, testing for them being
non-NULL is incorrect -- it misleads Coverity and it misleads the reader.
Remove some unnecessary NULL initializations as a follow up to help solidify
the fact that these pointers will be initialized properly in sys/rpc/.. with
the interfaces the way they are currently.
Differential Revision: https://reviews.freebsd.org/D6572
MFC after: 2 weeks
Reported by: Coverity
CID: 1007338, 1007339, 1007340
Reviewed by: markj, truckman
Sponsored by: EMC / Isilon Storage Division
if_iwm - GC some dead code, left by a partially applied OpenBSD change.
Taken-From: OpenBSD (if_iwm.c r1.69)
Submitted by: Imre Vadasz <imre@vdsz.com>
Obtained from: DragonflyBSD git 07dfed32ea39b980b0b80d27ff938e7c3ca4c0b5
optimized copy-on-write faults. This has two advantages: (1) one less radix
tree operation is performed and (2) vm_page_replace_checked() cannot fail,
making the code simpler.
Submitted by: Ryan Libby
Reviewed by: kib
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D4478
DR #289[0] came down and gcc4.2.1 was on the wrong side of history.
Partially revert GCC r42574 (just remove the error) to rectify the parse
bug to match Clang and other compliant C99 compilers.
An example declaration gcc tripped on before this fix:
void foobar(int [static 1]);
An example declaration gcc did not trip on before this fix:
void foobar(int name[static 1]);
Bump __FreeBSD_cc_version.
[0]: http://www.open-std.org/JTC1/SC22/WG14/www/docs/dr_289.htm
Reported by: allanjude
Sponsored by: EMC / Isilon Storage Division
