Hello, Martin. On Wed, Dec 10, 2014 at 04:02:32PM -0500, Martin K. Petersen wrote: > >>>>> "Tejun" == Tejun Heo <tj@xxxxxxxxxx> writes: > > Tejun> If raid consistency truly is the only reason for this, that > Tejun> approach seems way more fruitful to me than playing this optional > Tejun> feature game with hardware vendors which so often leads to > Tejun> eventual abysmal outcomes. > > The other use case is the filesystem one where it is common to zero > block ranges for bitmaps, etc. In many workloads there's is a > significant win to trimming over writing out many blocks of zeroes. Isn't that kinda niche and specialized tho? Besides, in this use case, the kernel is essentially just serving as the whitelist and nothing else. Userland would have to issue TRIMs directly. I'm not against this patch being merged but this really looks like an ultimately futile effort to me. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
