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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| lib | ||
| mach-bf518 | ||
| mach-bf527 | ||
| mach-bf533 | ||
| mach-bf537 | ||
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| mach-bf548 | ||
| mach-bf561 | ||
| mach-bf609 | ||
| mach-common | ||
| mm | ||
| oprofile | ||
| Clear_BSD.txt | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||