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| author | SeongJae Park <sj@kernel.org> | 2023-02-16 17:07:03 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-20 12:46:18 -0800 |
| commit | 32cf666eab720b597650d9dea6ff07e99cd36b3d (patch) | |
| tree | cf4ae267c2778b102643e89f1d60c4c32582c256 /mm/memory_hotplug.c | |
| parent | 7a079ba20090ab50d2f4203ceccd1e0f4becd1a6 (diff) | |
| download | lwn-32cf666eab720b597650d9dea6ff07e99cd36b3d.tar.gz lwn-32cf666eab720b597650d9dea6ff07e99cd36b3d.zip | |
mm/memory_hotplug: cleanup return value handing in do_migrate_range()
Return value mechanism of do_migrate_range() is not very simple, while no
caller of the function checks the return value. Make the function return
nothing to be more simple, and cleanup related unnecessary code.
Link: https://lkml.kernel.org/r/20230216170703.64574-1-sj@kernel.org
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 5f73fd894b89..db3b270254f1 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1620,12 +1620,10 @@ found: return 0; } -static int -do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) +static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) { unsigned long pfn; struct page *page, *head; - int ret = 0; LIST_HEAD(source); static DEFINE_RATELIMIT_STATE(migrate_rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST); @@ -1679,7 +1677,6 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) page_is_file_lru(page)); } else { - ret = -EBUSY; if (__ratelimit(&migrate_rs)) { pr_warn("failed to isolate pfn %lx\n", pfn); dump_page(page, "isolation failed"); @@ -1693,6 +1690,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) .nmask = &nmask, .gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL, }; + int ret; /* * We have checked that migration range is on a single zone so @@ -1721,8 +1719,6 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) putback_movable_pages(&source); } } - - return ret; } static int __init cmdline_parse_movable_node(char *p) |