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Date:   Sun, 26 May 2019 23:22:09 +0200
From:   "Uladzislau Rezki (Sony)" <>
To:     Andrew Morton <>,
Cc:     Roman Gushchin <>, Uladzislau Rezki <>,
        Hillf Danton <>,
        Michal Hocko <>,
        Matthew Wilcox <>,
        LKML <>,
        Thomas Garnier <>,
        Oleksiy Avramchenko <>,
        Steven Rostedt <>,
        Joel Fernandes <>,
        Thomas Gleixner <>,
        Ingo Molnar <>, Tejun Heo <>
Subject: [PATCH v2 0/4] Some cleanups for the KVA/vmalloc

Patch [1] removes an unused argument "node" from the __alloc_vmap_area()
function and that is it.

Patch [2] is not driven by any particular workload that fails or so,
it is just better approach to handle one specific split case.

Patch [3] some cleanups in merging path. Basically on a first step
the mergeable node is detached and there is no reason to "unlink" it.
The same concerns the second step unless it has been merged on first

Patch [4] moves BUG_ON()/RB_EMPTY_NODE() checks under "unlink" logic.
After [3] merging path "unlink" only linked nodes. Therefore we can say
that removing detached object is a bug in all cases.

    - update the commit message. [2] patch;
    - fix typos in comments. [2] patch;
    - do the "preload" for NUMA awareness. [2] patch;

Uladzislau Rezki (Sony) (4):
  mm/vmap: remove "node" argument
  mm/vmap: preload a CPU with one object for split purpose
  mm/vmap: get rid of one single unlink_va() when merge
  mm/vmap: move BUG_ON() check to the unlink_va()

 mm/vmalloc.c | 116 +++++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 90 insertions(+), 26 deletions(-)


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