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| author | Michal Hocko <mhocko@suse.com> | 2017-09-09 02:13:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-14 00:20:53 +0300 |
| commit | 9bbb3b440526ae37c2ae5a3e8218cc693d675ac6 (patch) | |
| tree | bad66c218353da9be113c08c42ca0188972c7da2 /mm | |
| parent | 76bf61477a2da0ae5b5a522a3200bdb241e41d66 (diff) | |
| download | linux-9bbb3b440526ae37c2ae5a3e8218cc693d675ac6.tar.xz | |
mm/sparse.c: fix typo in online_mem_sections
commit b4ccec41af82b5a5518c6534444412961894f07c upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/sparse.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index 7b4be3fd5cac..cdce7a7bb3f3 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -630,7 +630,7 @@ 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 */ |