The patchset removes a redundant operation in __vunmap() and exports a number of pages, used by vmalloc(), in /proc/meminfo. Patch (1) removes some redundancy on __vunmap(). Patch (2) adds vmalloc counter to /proc/meminfo. v4->v3: - rebased on top of current mm tree - dropped alloc_vmap_area() refactoring 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 (2): mm: refactor __vunmap() to avoid duplicated call to find_vm_area() mm: show number of vmalloc pages in /proc/meminfo fs/proc/meminfo.c | 2 +- include/linux/vmalloc.h | 2 ++ mm/vmalloc.c | 57 ++++++++++++++++++++++++++--------------- 3 files changed, 40 insertions(+), 21 deletions(-) -- 2.20.1
