Buildresult: linus/nds32-allnoconfig/nds32le-gcc8 built on Dec 8 2019, 07:05
kisskb
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Status:
OK
Date/Time:
Dec 8 2019, 07:05
Duration:
0:00:18.203106
Builder:
blade4b
Revision:
pipe: fix poll/select race introduced by the pipe rework (
ad910e36da4ca3a1bd436989f632d062dda0c921)
Target:
linus/nds32-allnoconfig/nds32le-gcc8
Branch:
linus
Compiler:
nds32le-gcc8
(nds32le-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30.51.20180307)
Config:
allnoconfig
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Log:
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Possible warnings (1)
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
Full Log
# git rev-parse -q --verify ad910e36da4ca3a1bd436989f632d062dda0c921^{commit} ad910e36da4ca3a1bd436989f632d062dda0c921 already have revision, skipping fetch # git checkout -q -f -B kisskb ad910e36da4ca3a1bd436989f632d062dda0c921 # git clean -qxdf # < git log -1 # commit ad910e36da4ca3a1bd436989f632d062dda0c921 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Sat Dec 7 10:41:17 2019 -0800 # # pipe: fix poll/select race introduced by the pipe rework # # The kernel wait queues have a basic rule to them: you add yourself to # the wait-queue first, and then you check the things that you're going to # wait on. That avoids the races with the event you're waiting for. # # The same goes for poll/select logic: the "poll_wait()" goes first, and # then you check the things you're polling for. # # Of course, if you use locking, the ordering doesn't matter since the # lock will serialize with anything that changes the state you're looking # at. That's not the case here, though. # # So move the poll_wait() first in pipe_poll(), before you start looking # at the pipe state. # # Fixes: 8cefc107ca54 ("pipe: Use head and tail pointers for the ring, not cursor and length") # Cc: David Howells <dhowells@redhat.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-ld --version # < git log --format=%s --max-count=1 ad910e36da4ca3a1bd436989f632d062dda0c921 # < make -s -j 24 ARCH=nds32 O=/kisskb/build/linus_nds32-allnoconfig_nds32le CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- allnoconfig # make -s -j 24 ARCH=nds32 O=/kisskb/build/linus_nds32-allnoconfig_nds32le CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] Completed OK # rm -rf /kisskb/build/linus_nds32-allnoconfig_nds32le # Build took: 0:00:18.203106
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