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authorMichal Hocko <mhocko@suse.com>2017-09-08 16:13:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-08 18:26:47 -0700
commitb4ccec41af82b5a5518c6534444412961894f07c (patch)
tree85a827e39e522176bcdee2ae96b0349d2b49b404 /mm
parentde0c799bba2610a8e1e9a50d76a28614520a4cd4 (diff)
download96b-common-b4ccec41af82b5a5518c6534444412961894f07c.tar.gz
mm/sparse.c: fix typo in online_mem_sections
online_mem_sections() accidentally marks online only the first section in the given range. This is a typo which hasn't been noticed because I haven't tested large 2GB blocks previously. All users of pfn_to_online_page would get confused on the the rest of the pfn range in the block. All we need to fix this is to use iterator (pfn) rather than start_pfn. Link: http://lkml.kernel.org/r/20170904112210.3401-1-mhocko@kernel.org Fixes: 2d070eab2e82 ("mm: consider zone which is not fully populated to have holes") Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/sparse.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/sparse.c b/mm/sparse.c
index a9783acf2bb9..83b3bf6461af 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -626,7 +626,7 @@ void online_mem_sections(unsigned long start_pfn, unsigned long end_pfn)
unsigned long pfn;
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
- unsigned long section_nr = pfn_to_section_nr(start_pfn);
+ unsigned long section_nr = pfn_to_section_nr(pfn);
struct mem_section *ms;
/* onlining code should never touch invalid ranges */