diff options
| author | David S. Miller <davem@davemloft.net> | 2020-03-25 18:58:11 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-25 18:58:11 -0700 |
| commit | 9fb16955fb661945ddffce4504dcffbe55cd518a (patch) | |
| tree | e0811476a96a9411686e24f15a48d63cc6d02e49 /mm/sparse.c | |
| parent | 1f074e677a343afcd852af5ee725bacc937fa6bd (diff) | |
| parent | 1b649e0bcae71c118c1333e02249a7510ba7f70a (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Overlapping header include additions in macsec.c
A bug fix in 'net' overlapping with the removal of 'version'
string in ena_netdev.c
Overlapping test additions in selftests Makefile
Overlapping PCI ID table adjustments in iwlwifi driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/sparse.c')
| -rw-r--r-- | mm/sparse.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index 596b2a45b100..aadb7298dcef 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -734,6 +734,7 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages, struct mem_section *ms = __pfn_to_section(pfn); bool section_is_early = early_section(ms); struct page *memmap = NULL; + bool empty; unsigned long *subsection_map = ms->usage ? &ms->usage->subsection_map[0] : NULL; @@ -764,7 +765,8 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages, * For 2/ and 3/ the SPARSEMEM_VMEMMAP={y,n} cases are unified */ bitmap_xor(subsection_map, map, subsection_map, SUBSECTIONS_PER_SECTION); - if (bitmap_empty(subsection_map, SUBSECTIONS_PER_SECTION)) { + empty = bitmap_empty(subsection_map, SUBSECTIONS_PER_SECTION); + if (empty) { unsigned long section_nr = pfn_to_section_nr(pfn); /* @@ -779,13 +781,15 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages, ms->usage = NULL; } memmap = sparse_decode_mem_map(ms->section_mem_map, section_nr); - ms->section_mem_map = (unsigned long)NULL; } if (section_is_early && memmap) free_map_bootmem(memmap); else depopulate_section_memmap(pfn, nr_pages, altmap); + + if (empty) + ms->section_mem_map = (unsigned long)NULL; } static struct page * __meminit section_activate(int nid, unsigned long pfn, |