Revision 0fb9a1abc8c97f858997e962694eb36b4517144e authored by Mathieu Desnoyers on 09 July 2018, 19:51:52 UTC, committed by Thomas Gleixner on 10 July 2018, 20:18:52 UTC
Update rseq uapi header comments to reflect that user-space need to do thread-local loads/stores from/to the struct rseq fields. As a consequence of this added requirement, the kernel does not need to perform loads/stores with single-copy atomicity. Update the comment associated to the "flags" fields to describe more accurately that it's only useful to facilitate single-stepping through rseq critical sections with debuggers. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-api@vger.kernel.org Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Watson <davejwatson@fb.com> Cc: Paul Turner <pjt@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Chris Lameter <cl@linux.com> Cc: Ben Maurer <bmaurer@fb.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Joel Fernandes <joelaf@google.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Link: https://lkml.kernel.org/r/20180709195155.7654-4-mathieu.desnoyers@efficios.com
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File | Mode | Size |
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.gitignore | -rw-r--r-- | 12 bytes |
Makefile | -rw-r--r-- | 843 bytes |
asm-offsets.c | -rw-r--r-- | 3.8 KB |
bootinfo_proc.c | -rw-r--r-- | 1.7 KB |
dma.c | -rw-r--r-- | 4.1 KB |
early_printk.c | -rw-r--r-- | 1.6 KB |
entry.S | -rw-r--r-- | 9.2 KB |
head.S | -rw-r--r-- | 87.7 KB |
ints.c | -rw-r--r-- | 4.0 KB |
irq.c | -rw-r--r-- | 854 bytes |
machine_kexec.c | -rw-r--r-- | 1.3 KB |
module.c | -rw-r--r-- | 3.4 KB |
module.lds | -rw-r--r-- | 91 bytes |
pcibios.c | -rw-r--r-- | 2.6 KB |
process.c | -rw-r--r-- | 6.7 KB |
ptrace.c | -rw-r--r-- | 7.4 KB |
relocate_kernel.S | -rw-r--r-- | 2.8 KB |
setup.c | -rw-r--r-- | 231 bytes |
setup_mm.c | -rw-r--r-- | 13.0 KB |
setup_no.c | -rw-r--r-- | 6.4 KB |
signal.c | -rw-r--r-- | 29.9 KB |
sun3-head.S | -rw-r--r-- | 2.0 KB |
sys_m68k.c | -rw-r--r-- | 13.1 KB |
syscalltable.S | -rw-r--r-- | 9.8 KB |
time.c | -rw-r--r-- | 3.7 KB |
traps.c | -rw-r--r-- | 29.9 KB |
uboot.c | -rw-r--r-- | 2.7 KB |
vectors.c | -rw-r--r-- | 3.8 KB |
vmlinux-nommu.lds | -rw-r--r-- | 1.5 KB |
vmlinux-std.lds | -rw-r--r-- | 1.2 KB |
vmlinux-sun3.lds | -rw-r--r-- | 1.1 KB |
vmlinux.lds.S | -rw-r--r-- | 297 bytes |
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