On Mon, Feb 25, 2019 at 12:30:34PM -0800, Roman Gushchin wrote: > The patchset contains few changes to the vmalloc code, which are > leading to some performance gains and code simplification. > > Also, it exports a number of pages, used by vmalloc(), > in /proc/meminfo. > > Patch (1) removes some redundancy on __vunmap(). > Patch (2) separates memory allocation and data initialization > in alloc_vmap_area() > Patch (3) adds vmalloc counter to /proc/meminfo. > > v3->v2: > - switched back to atomic after more accurate perf measurements: > no visible perf difference > - added perf stacktraces in commmit message of (1) > > v2->v1: > - rebased on top of current mm tree > - switch from atomic to percpu vmalloc page counter > > RFC->v1: > - removed bogus empty lines (suggested by Matthew Wilcox) > - made nr_vmalloc_pages static (suggested by Matthew Wilcox) > - dropped patch 3 from RFC patchset, will post later with > some other changes > - dropped RFC > > Roman Gushchin (3): > mm: refactor __vunmap() to avoid duplicated call to find_vm_area() > mm: separate memory allocation and actual work in alloc_vmap_area() > mm: show number of vmalloc pages in /proc/meminfo > > fs/proc/meminfo.c | 2 +- > include/linux/vmalloc.h | 2 + > mm/vmalloc.c | 107 ++++++++++++++++++++++++++-------------- > 3 files changed, 73 insertions(+), 38 deletions(-) > > -- > 2.20.1 > Ping. Any comments/suggestions/objections? Thanks!
