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authorWei Yang <richard.weiyang@linux.alibaba.com>2020-10-13 16:56:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-13 18:38:34 -0700
commit7db5e7b67e3e8d7aa96beb2a4551d211b76a05ba (patch)
tree2f72f7320c2194c645997cf523b94c47a5258a84 /mm/hugetlb.c
parent540809be526724cfa8703d08b029d323fc123a41 (diff)
downloadlinux-7db5e7b67e3e8d7aa96beb2a4551d211b76a05ba.tar.bz2
mm/hugetlb: not necessary to coalesce regions recursively
Patch series "mm/hugetlb: code refine and simplification", v4. Following are some cleanups for hugetlb. Simple testing with tools/testing/selftests/vm/map_hugetlb passes. This patch (of 7): Per my understanding, we keep the regions ordered and would always coalesce regions properly. So the task to keep this property is just to coalesce its neighbour. Let's simplify this. Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Baoquan He <bhe@redhat.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Link: https://lkml.kernel.org/r/20200901014636.29737-1-richard.weiyang@linux.alibaba.com Link: https://lkml.kernel.org/r/20200831022351.20916-1-richard.weiyang@linux.alibaba.com Link: https://lkml.kernel.org/r/20200831022351.20916-2-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
-rw-r--r--mm/hugetlb.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a7d312cc018e..dc2977750e85 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -309,8 +309,7 @@ static void coalesce_file_region(struct resv_map *resv, struct file_region *rg)
list_del(&rg->link);
kfree(rg);
- coalesce_file_region(resv, prg);
- return;
+ rg = prg;
}
nrg = list_next_entry(rg, link);
@@ -320,9 +319,6 @@ static void coalesce_file_region(struct resv_map *resv, struct file_region *rg)
list_del(&rg->link);
kfree(rg);
-
- coalesce_file_region(resv, nrg);
- return;
}
}