https://github.com/torvalds/linux
Revision 5be413a6e2a16e08c8f0f1b59794a7203b5eca2c authored by Linus Torvalds on 12 January 2023, 23:09:20 UTC, committed by Linus Torvalds on 12 January 2023, 23:09:20 UTC
Pull s390 fixes from Heiko Carstens: - Add various missing READ_ONCE() to cmpxchg() loops prevent the compiler from potentially generating incorrect code. This includes a rather large change to the s390 specific hardware sampling code and its current use of cmpxchg_double(). Do the fix now to get it out of the way of Peter Zijlstra's cmpxchg128() work, and have something that can be backported. The added new code includes a private 128 bit cmpxchg variant which will be removed again after Peter's rework is available. Also note that this 128 bit cmpxchg variant is used to implement 128 bit READ_ONCE(), while strictly speaking it wouldn't be necessary, and _READ_ONCE() should also be sufficient; even though it isn't obvious for all converted locations that this is the case. Therefore use this implementation for for the sake of clarity and consistency for now. - Fix ipl report address handling to avoid kdump failures/hangs. - Fix misuse of #(el)if in kernel decompressor. - Define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36, caused by the recently changed discard behaviour. - Make sure _edata and _end symbols are always page aligned. - The current header guard DEBUG_H in one of the s390 specific header files is too generic and conflicts with the ath9k wireless driver. Add an _ASM_S390_ prefix to the guard to make it unique. - Update defconfigs. * tag 's390-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: update defconfigs KVM: s390: interrupt: use READ_ONCE() before cmpxchg() s390/percpu: add READ_ONCE() to arch_this_cpu_to_op_simple() s390/cpum_sf: add READ_ONCE() semantics to compare and swap loops s390/kexec: fix ipl report address for kdump s390: fix -Wundef warning for CONFIG_KERNEL_ZSTD s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36 s390: expicitly align _edata and _end symbols on page boundary s390/debug: add _ASM_S390_ prefix to header guard
Tip revision: 5be413a6e2a16e08c8f0f1b59794a7203b5eca2c authored by Linus Torvalds on 12 January 2023, 23:09:20 UTC
Merge tag 's390-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Merge tag 's390-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Tip revision: 5be413a
File | Mode | Size |
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Documentation | ||
LICENSES | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | -rw-r--r-- | 20.0 KB |
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 151 bytes |
.gitattributes | -rw-r--r-- | 62 bytes |
.gitignore | -rw-r--r-- | 2.0 KB |
.mailmap | -rw-r--r-- | 24.7 KB |
.rustfmt.toml | -rw-r--r-- | 369 bytes |
COPYING | -rw-r--r-- | 496 bytes |
CREDITS | -rw-r--r-- | 99.3 KB |
Kbuild | -rw-r--r-- | 2.5 KB |
Kconfig | -rw-r--r-- | 555 bytes |
MAINTAINERS | -rw-r--r-- | 681.3 KB |
Makefile | -rw-r--r-- | 69.5 KB |
README | -rw-r--r-- | 727 bytes |
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