of that syscall will return ERESTART. For amd64's netbsd32_syscall()
that means we need to back up the PC saved in the trap frame so we can
re-issue the syscall instruction. For "normal" syscall traps, we saved
the instruction length in the trap frame, but this was missing for the
oosyscall/lcall path. Since the PC was not backed up, the kernel-only
value ERESTART was returned to userland, causing all sort of grief for
old compat_netbsd32 executables!
XXX Pullup-9
time, and create a simple allocator for them for use by the rx reclaim
handlers. Don't create and destroy DMA maps for receoive buffers
in the interrupt handlers -- just use the maps that are created at
attach time.
number, and structure the loop in txp_start() similarly to other drivers
(e.g. ste_start() in the ste(4) driver). Similar in spirit to OpenBSD's
rev 1.126, but implemented a bit differently.
Add the mapping for errno values missing in nfsrv_v2errmap[]. While
at it, add a compile-time assert to make sure that the array does not
become out-of-date again.
Add the two missing errno.h constants: EOWNERDEAD and ENOTRECOVERABLE.
While technically they're used for robust mutexes which we do not
support at the moment, they are listed in POSIX and used by libc++.
While libc++ can be made to build without it, it just locally redefines
the values then, so we may as well define them globally.
Cherry-pick from FreeBSD:
From 7c1bc5ffc2fa68ddc76e5ea8a3a1a6fdfeee57f0 Mon Sep 17 00:00:00 2001
From: andrew <andrew@FreeBSD.org>
Date: Tue, 28 May 2019 09:12:15 +0000
Subject: [PATCH] Teach the kernel KUBSAN runtime about alignment_assumption
This checks the alignment of a given pointer is sufficient for the
requested alignment asked for. This fixes the build with a recent
llvm/clang.
Sponsored by: DARPA, AFRL
1. Issue zil_commit only if we're actually updating something --
there's no need to commit if we're unlinking the file or if
there's no atime update being applied.
2. Issue zil_commit only if the zfs has sync=always set -- for
sync=standard there's no need for us to commit anything here since
no application asked for an explicit sync.
Speeds up untarring base.tgz on top of itself by a factor of about
2x, and speeds up rm by a factor of about 10x, on my system with an
SSD SLOG over SATA. Histogram of unlink, rmdir, and rename timing
shows dramatic reduction in latency for most samples.
(To be fair, this was not an improvement over zfs; issuing the
unnecessary zil_commit was a self-inflicted performance wound.)
DMA addresses into a 64-bit value (and thus using 64-bit shifts
when unnecessary), just reference the address from the DMA map
directly.
- Add some missing byte-swaps.
ext2fs_vnops.c:1002:2, signed integer overflow: 510008 * 4294 cannot be represented in type 'int
Maximum usec * 4294 is in the range of unsigned int.
>>> 1000000*4294
4294000000
>>> 2**32
4294967296
Patch submitted by Nisarg S. Joshi.
