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Obtained from: OpenSolaris
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Obtained from: OpenSolaris
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Two pathnames refer to the same directory entry iff the directories match
and the final components' names match.
Example: (assuming file1 is an existing file)
ln -f file1 file1
This now fails while leaving file1 intact. It used to delete file1 and then
complain it cannot be linked because it is gone.
With -i, this error is detected before the question is asked.
MFC after: 2 weeks
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Submitted by: Jilles Tjoelker <jilles@stack.nl>
MFC after: 3 days
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that page only makes sense if the advice is MADV_WILLNEED. In that case,
the intention is to activate the page, so discouraging the page daemon
from reclaiming the page makes sense. In contrast, in the other cases,
MADV_DONTNEED and MADV_FREE, it makes no sense whatsoever to discourage
the page daemon from reclaiming the page by setting PG_REFERENCED.
Wrap a nearby line.
Discussed with: kib
MFC after: 3 weeks
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add an example that shows how to do it.
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sleeping on that page is nonsensical. Doing so reduces the likelihood
that the page daemon will reclaim the page before the thread waiting in
vm_object_backing_scan() is reawakened. However, it does not guarantee
that the page is not reclaimed, so vm_object_backing_scan() restarts
after reawakening. More importantly, this muddles the meaning of
PG_REFERENCED. There is no reason to believe that the caller of
vm_object_backing_scan() is going to use (i.e., access) the contents of
the page. There is especially no reason to believe that an access is
more likely because vm_object_backing_scan() had to sleep on the page.
Discussed with: kib
MFC after: 3 weeks
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Approved by: rpaulo (mentor)
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Approved by: rpaulo (mentor)
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- No need to manually switch to RUN state, assoc response takes care
of that.
Approved by: rpaulo (mentor)
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Approved by: rpaulo (mentor)
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changes.
Approved by: rpaulo (mentor)
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either redundant or harmful, depending on the caller. For example, when
called by vm_fault(), it is redundant. However, when called by
vm_thread_swapin(), it is harmful. Specifically, if the thread is later
swapped out, having PG_REFERENCED set on its stack pages leads the page
daemon to reactivate these stack pages and delay their reclamation.
Reviewed by: kib
MFC after: 3 weeks
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POSIX permits but does not require checking access on the current and parent
directories.
Because various programs do not like it if getcwd(3) fails, it seems best
to avoid checking access as much as possible. There are various reports in
GNATS about this (search for getcwd).
Our getcwd(3) implementation first queries the kernel for the pathname
directly, which does not check any permissions but sometimes fails, and then
falls back to reading all parent directories for the names.
PR: standards/44425
MFC after: 2 weeks
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Unset PWD if it is incorrect and no value for it can be determined.
This preserves the logical current directory across shell invocations.
Example (assuming /home is a symlink):
$ cd
$ pwd
/home/foo
$ sh
$ pwd
/home/foo
Formerly the second pwd would show the physical path (symlinks resolved).
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Move some protection code to INVARIANTS.
Cleanups.
MFC after: 3 days.
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MFC after: 1 week
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o) Mask off PAGE_MASK bits in pmap_update_page, etc., rather than modifying the
badvaddr in trapframe. Some nearby interfaces already did this.
o) Make PTEs "unsigned int" for now, not "unsigned long" -- we are only ready
for them to be 32-bit on 64-bit platforms.
o) Rather than using pmap_segmap and calculating the offset into the page table
by hand in trap.c, use pmap_pte().
o) Remove unused quad_syscall variable in trap.c.
o) Log things for illegal instructions like we do for bad page faults.
o) Various cast cleanups related to how to print registers.
o) When logging page faults, show the page table information not just for the
program counter, but for the fault address.
o) Modify support.S to use ABI-neutral macros for operating on pointers.
o) Consistently use CALLFRAME_SIZ rather than STAND_FRAME_SIZE, etc.
o) Remove unused insque/remque functions.
o) Remove some coprocessor 0 accessor functions implemented in assembly that
are unused and have inline assembly counterparts.
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o) Remove NBPG, PGOFSET and PGSHIFT. Use the standard names.
o) Remove some unused macros and move things from param.h to vmparam.h that
belong in the latter. (Actually, all of the kernel segment values, virtual
addresses, etc., belong in one place, but this is a step in the right
direction.)
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same time.
o) Remove some unused trivial uart functions from octeon_machdep now that the
uart part is fully working and they are unused.
o) Use __func__ instead of __FUNCTION__.
o) Use intr_*() instead of other routines that do the same thing.
o) Remove some duplicate printfs from the Octeon port, as well as duplicate
setting of Maxmem.
o) Use the right frequency divider on Octeon.
o) Use PCPU_GET(cpuid) consistently to get the cpuid of the running core.
o) Remove some unused macros in the Octeon port.
o) Use mips_sync() around use of the global dpcpu, whose value may not be
visible to APs at first.
o) When loading the first thread's stack, use macros to make the code correct
for n64 as well.
o) Remove stub, do-nothing FAU init/enable/disable functions from the RGMX
driver.
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that turned out to be unrelated, and the rest was, as pointed out by Neel,
just wrong-headed.
o) Tweak mem.c to fix use of /dev/kmem for direct-mapped addresses.
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ones implemented using assembly.
o) Use TRAPF_USERMODE() consistently rather than USERMODE(). Eliminate
<machine/psl.h> as a result.
o) Use intr_*() rather than *intr(), consistently.
o) Use register_t instead of u_int in some trap code.
o) Merge some more endian-related macros to machine/asm.h from NetBSD.
o) Add PTR_LI macro, which loads an address with the correct sign-extension for
a pointer.
o) Restore interrupts when bailing out due to an excessive IRQ in
nexus_setup_intr().
o) Remove unused functions from psraccess.S.
o) Enter temporary virtual entries for large memory access into the page tables
rather than simply hoping they stay resident in the TLB and we don't need to
do a refill for them.
o) Abstract out large memory mapping setup/teardown using some macros.
o) Do mips_dcache_wbinv_range() when using temporary virtual addresses just
like we do when we can use the direct map.
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and floating pages. They are unused and unsupported.
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sparc64.
o) Use uiomove_fromphys rather than the broken fpage mechanism for /dev/mem.
o) Update sf_buf allocator to not share buffers and to do a pmap_qremove when
done with an sf_buf so as to better track valid mappings.
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bit.
o) Remove some unused inlines.
o) Generate CP0 access functions for 64-bit TLB registers when building for
n64.
o) Add an inline function version of the COP0_SYNC macro.
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Example: fnmatch("a*b/*", "abbb/.x", FNM_PATHNAME | FNM_PERIOD)
PR: 116074
MFC after: 1 week
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MFC after: 1 week
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Note: the *64 interfaces are no longer exposed via zlib.h but were keep
as public interfaces;
Note 2: this commit would break applications that uses the moved symbols
directly.
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MFC after: 2 days
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no flowid is present, this was causing some bad
reordering, now just use 0.
Also, add a few watchdog bits, and tx handler bits
that were corrected in igb.
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multiple devfs mounts.
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Submitted by: Mikolaj Golub <to.my.trociny@gmail.com>
MFC after: 3 days
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Submitted by: Mikolaj Golub <to.my.trociny@gmail.com>
MFC after: 3 days
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renew thread where they were missing.
MFC after: 1 week
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SO_BINDANY.
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for opens done locally in the client when a delegation for the file
was held. This could cause the client to crash in crsetgroups() when
recovering from a server crash/reboot. This patch fills in the
recovery credentials for this case, in order to avoid the client crash.
Also, add KASSERT()s to the credential copy functions, to catch any
other cases where the credentials aren't filled in correctly.
MFC after: 1 week
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It seems that identifier "_t" is sometimes used as a variable name,
even in our tree. Not that I endorse that, but still it's better
to require at least one character before _t suffix to consider
an identifier to be a type name.
Reported by: Alex Vasylenko <lxv@omut.org>
MFC after: 1 week
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is not set.
PR: conf/130414
Submitted by: Dominic Fandrey <kamikaze@bsdforen.de>
Reviewed by: freebsd-rc@
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- Enable missing PARTIAL_ADDRESS_ALIAS for Core i7.
MFC after: 3 days
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- Remove unused locally added variable;
- Deprecate -o: it's the default behavior on OpenBSD.
X-MFC: along with nc 4.7.
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MFC after: 3 days
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HAST was not able to stand heavy random load.
Reported by: Hiroyuki Yamagami
MFC after: 3 days
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