In particular, do not assume that vn_start_write() returns the same mp
as it was passed in, or never returns error.
Also be more accurate to return NULL vp and mp when error occured, to
catch wrong control flow easier.
Stop checking for NULL mp before calling vn_finished_write(), NULL mp
is handled transparently by the function.
Reviewed by: rmacklem
Tested by: pho
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27881
This should have been a part of 47d1ad2413, but it was overlooked. All of
the build bits have been previously removed, and nothing references this
anymore.
- Increase WARNS to 6.
- Except -Wcast-align and -Wincompatible-pointer-types-discards-qualifiers
checks.
- Use ANSI C prototype.
- Statically variables and functions.
- Add extern declaration for global variables.
- Rename local variables to resolve shadow warnings.
PR: 71667
MFC after: 2 weeks
The current POSIX.1-202x draft (1.1) was used as source material.
Submitted by: Soumendra Ganguly <soumendraganguly@gmail.com>
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D27787
to prevent obliteration of error value from the original syscall.
Also improve error message for short read.
Submitted by: Konrad Sewiłło-Jopek
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27864
- Ignore malformed directory entries as created by Dropbox ("/").
(rev 1.24)
- Use libarchive 3.x interface: check result for archive_read_free()
and don't call archive_read_close manually. (rev 1.23)
- Always overwrite symlinks on extraction, ever if they're newer than
entries in archive.
- Use getline() rather than getdelim().
PR: 231827
Submitted by: ak
Reviewed by: mm
Obtained from: NetBSD
MFC after: 2 weeks
Commit 774a36851e fixed the NFS server so that it could handle
ERELOOKUP returns from VOP calls by redoing the operation/RPC.
However, for NFSv4.0, redoing an Open would increment
the open_owner's seqid multiple times, breaking the protocol.
This patch sets a new flag called ND_ERELOOKUP on the RPC when
a redo is in progress. Then the code that increments the seqid
avoids the seqid increment/check when the flag is set, since
it indicates this has already been done for the Open.
r367672 modified UFS such that certain VOPs, such as
VOP_CREATE() will intermittently return ERELOOKUP.
When this happens, the entire system call, or NFS
operation in the case of the NFS server, must be redone.
This patch adds that support to the NFS server by rolling
back the state of the NFS request arguments and NFS
reply arguments mbuf lists to the condition they were
in before the operation and then redoing the operation.
Tested by: pho
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D27875
scrmap is only used in the one compilation unit in all cases, make it static
rather than extern'ing it. There's little benefit, but it's easy to do.
It's unclear how this hasn't failed many builds before now, since it should
have cropped up sometime around deeper hierarchies getting a default WARNS.
MFC after: 3 days
If the kernel was built without INET6, default to ICMP. Or, if it was
built without INET, default to ICMPv6.
PR: 251725
Reported by: jbeich
Reviewed by: jbeich
Tested by: jbeich
MFC with: 368045
This updates the FUSE protocol to 7.28, though most of the new features
are optional and are not yet implemented.
MFC after: 2 weeks
Relnotes: yes
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27818
An order-of-operations problem caused an expectation intended for
FUSE_READ to instead match FUSE_ACCESS. Surprisingly, only one test
case was affected.
MFC after: 2 weeks
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27818
[PowerPC] Do not emit HW loop when TLS var accessed in PHI of loop
exit
If any PHI nodes in loop exit blocks have incoming values from the
loop that are accesses of TLS variables with local dynamic or general
dynamic TLS model, the address will be computed inside the loop.
Since this includes a call to __tls_get_addr, this will in turn cause
the CTR loops verifier to complain. Disable CTR loops in such cases.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=48527
This should fix building ceph 12.2.12 on powerpc64, powerpc, powerpcspe
and powerpc64le.
Requested by: pkubaj
MFC after: 3 days
Previously having ficl/liblua in LIB32LIST with their respective option
turned OFF would be relatively harmless, as we wouldn't act on it unless we
were building the non-32 variant. As of ac5f382a9d, however, these are
now used for dependencies in some cases and must reflect what's actually
going to be built.
The change to kern_jail_set that was supposed to "also properly clean
up when attachment fails" didn't fix a memory leak but actually caused
a double free. Back that part out, and leave the part that manages
allprison_lock state.
Support for fractional seconds has become much more widespread since
this text was originally written.
Reported by: Mark Eichin
Reviewed by: gbe, jilles
Differential Revision: https://reviews.freebsd.org/D26208
CouchDB was mistakenly removed in r368712
amqps is used by net/rabbitmp
Both are registered in IANA
Reported by: dch
Differential Revision: https://reviews.freebsd.org/D27691
The "findstack", "show all trace", and "show active trace" commands
were iterating over allproc to enumerate threads. This missed threads
executing in exit1() after being removed from allproc.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27829
Not all debugger operations that enumerate threads require thread
stacks to be resident in memory to be useful. Instead, push P_INMEM
checks (if needed) into callers.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27827
Processes part way through exit1() are not included in allproc. Using
allproc to enumerate processes prevented getting the stack trace of a
thread in this part of exit1() via ddb.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27826
This is used by kernel debuggers to enumerate processes via the pid
hash table.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27825
Exiting processes that have been removed from allproc but are still
executing are not yet marked PRS_ZOMBIE, so they were not listed (for
example, if a thread panics during exit1()). To detect these
processes, clear p_list.le_prev to NULL explicitly after removing a
process from the allproc list and check for this sentinel rather than
PRS_ZOMBIE when walking the pidhash.
While here, simplify the pidhash walk to use a single outer loop.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27824
Keep explicit track of the allprison_lock state during the final part
of kern_jail_set, instead of deducing it from the JAIL_ATTACH flag.
Also properly clean up when the attachment fails, fixing a long-
standing (though minor) memory leak.
Use atomic testandset and testandclear to catch concurrent double free,
and to reduce the number of atomic operations.
Submitted by: jeff
Reviewed by: cem, kib, markj (all previous version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22703
That is, provide wrappers around the atomic_testandclear and
atomic_testandset primitives.
Submitted by: jeff
Reviewed by: cem, kib, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22702
