Re: [PATCH v2 07/76] ARC: [optim] uaccess __{get,put}_user() optimised

2013-01-18 Thread Arnd Bergmann
On Friday 18 January 2013, Vineet Gupta wrote: > Override asm-generic implementations. We basically gain on 2 fronts > > * checks for alignment no longer needed as we are only doing "unit" > sized copies. > > (Careful observer could argue that While the kernel buffers are aligned, >the

[PATCH v2 07/76] ARC: [optim] uaccess __{get,put}_user() optimised

2013-01-18 Thread Vineet Gupta
Override asm-generic implementations. We basically gain on 2 fronts * checks for alignment no longer needed as we are only doing "unit" sized copies. (Careful observer could argue that While the kernel buffers are aligned, the user buffer in theory might not be - however in that case the

[PATCH v2 07/76] ARC: [optim] uaccess __{get,put}_user() optimised

2013-01-18 Thread Vineet Gupta
Override asm-generic implementations. We basically gain on 2 fronts * checks for alignment no longer needed as we are only doing unit sized copies. (Careful observer could argue that While the kernel buffers are aligned, the user buffer in theory might not be - however in that case the

Re: [PATCH v2 07/76] ARC: [optim] uaccess __{get,put}_user() optimised

2013-01-18 Thread Arnd Bergmann
On Friday 18 January 2013, Vineet Gupta wrote: Override asm-generic implementations. We basically gain on 2 fronts * checks for alignment no longer needed as we are only doing unit sized copies. (Careful observer could argue that While the kernel buffers are aligned, the user