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e87fc0ec07
Implement FETCH-OP atomic primitives, these are very similar to the existing OP-RETURN primitives we already have, except they return the value of the atomic variable _before_ modification. This is especially useful for irreversible operations -- such as bitops (because it becomes impossible to reconstruct the state prior to modification). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Miao <realmz6@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: adi-buildroot-devel@lists.sourceforge.net Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| cplb-mpu | ||
| cplb-nompu | ||
| .gitignore | ||
| asm-offsets.c | ||
| bfin_dma.c | ||
| bfin_gpio.c | ||
| bfin_ksyms.c | ||
| cplbinfo.c | ||
| debug-mmrs.c | ||
| dma-mapping.c | ||
| dumpstack.c | ||
| early_printk.c | ||
| entry.S | ||
| exception.c | ||
| fixed_code.S | ||
| flat.c | ||
| ftrace-entry.S | ||
| ftrace.c | ||
| gptimers.c | ||
| ipipe.c | ||
| irqchip.c | ||
| kgdb_test.c | ||
| kgdb.c | ||
| Makefile | ||
| module.c | ||
| nmi.c | ||
| perf_event.c | ||
| process.c | ||
| pseudodbg.c | ||
| ptrace.c | ||
| reboot.c | ||
| setup.c | ||
| shadow_console.c | ||
| signal.c | ||
| stacktrace.c | ||
| sys_bfin.c | ||
| time-ts.c | ||
| time.c | ||
| trace.c | ||
| traps.c | ||
| vmlinux.lds.S | ||