On Thu, Dec 08, 2016 at 04:29:29AM +0000, Alan Cox wrote: > Author: alc > Date: Thu Dec 8 04:29:29 2016 > New Revision: 309703 > URL: https://svnweb.freebsd.org/changeset/base/309703 > > Log: > Previously, vm_radix_remove() would panic if the radix trie didn't > contain a vm_page_t at the specified index. However, with this > change, vm_radix_remove() no longer panics. Instead, it returns NULL > if there is no vm_page_t at the specified index. Otherwise, it > returns the vm_page_t. The motivation for this change is that it > simplifies the use of radix tries in the amd64, arm64, and i386 pmap > implementations. Instead of performing a lookup before every remove, > the pmap can simply perform the remove.
Is this performance improvement? _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
