Re: [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap

On Tue, Jan 9, 2018 at 1:10 PM, Wei Wang wrote: > From: Matthew Wilcox > > The eXtensible Bitmap is a sparse bitmap representation which is > efficient for set bits which tend to cluster. It supports up to > 'unsigned long' worth of bits. >

Re: [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap

On Fri, Feb 16, 2018 at 8:30 PM, Matthew Wilcox wrote: > On Fri, Feb 16, 2018 at 07:44:50PM +0200, Andy Shevchenko wrote: >> On Tue, Jan 9, 2018 at 1:10 PM, Wei Wang wrote: >> > From: Matthew Wilcox >> > >> > The eXtensible

Re: [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap

On Fri, Feb 16, 2018 at 11:45:51PM +0200, Andy Shevchenko wrote: > Now, the question about test case. Why do you heavily use BUG_ON? > Isn't resulting statistics enough? No. If any of those tests fail, we want to stop dead. They'll lead to horrendous bugs throughout the kernel if they're wrong.

Re: [Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap

On Fri, Feb 16, 2018 at 07:44:50PM +0200, Andy Shevchenko wrote: > On Tue, Jan 9, 2018 at 1:10 PM, Wei Wang wrote: > > From: Matthew Wilcox > > > > The eXtensible Bitmap is a sparse bitmap representation which is > > efficient for set bits which tend

[Qemu-devel] [PATCH v21 1/5] xbitmap: Introduce xbitmap

From: Matthew Wilcox The eXtensible Bitmap is a sparse bitmap representation which is efficient for set bits which tend to cluster. It supports up to 'unsigned long' worth of bits. Signed-off-by: Matthew Wilcox Signed-off-by: Wei Wang