diff options
| author | Kemeng Shi <[email protected]> | 2023-07-14 11:47:48 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-08-18 17:12:31 +0000 |
| commit | 3c09be5a2be861d7f74b0251a8e77859b4c654cc (patch) | |
| tree | f75f55f9b98747cbb94d47a54fdb28736b425872 /mm/page_ext.c | |
| parent | mm/page_ext: remove unused return value of offline_page_ext (diff) | |
| download | kernel-3c09be5a2be861d7f74b0251a8e77859b4c654cc.tar.gz kernel-3c09be5a2be861d7f74b0251a8e77859b4c654cc.zip | |
mm/page_ext: remove rollback for untouched mem_section in online_page_ext
If init_section_page_ext failed, we only need rollback for mem_section
before failed mem_section. Make rollback end point to failed mem_section
to remove unnecessary rollback.
As pfn += PAGES_PER_SECTION will be executed even if init_section_page_ext
failed. So pfn points to mem_section after failed mem_section. Subtract
one mem_section from pfn to get failed mem_section.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kemeng Shi <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'mm/page_ext.c')
| -rw-r--r-- | mm/page_ext.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page_ext.c b/mm/page_ext.c index 096451df1c87..f052397dc70f 100644 --- a/mm/page_ext.c +++ b/mm/page_ext.c @@ -424,6 +424,7 @@ static int __meminit online_page_ext(unsigned long start_pfn, return 0; /* rollback */ + end = pfn - PAGES_PER_SECTION; for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) __free_page_ext(pfn); |