mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-28 05:34:13 -05:00
Code Issues Packages Projects Releases Wiki Activity

memory_hotplug: optimise try_offline_memory_block()

Browse Source 
Extract the zone number directly from the page instead of using the page's
zone number to look up the zone and asking the zone what its number is.

Link: https://lkml.kernel.org/r/20251106201452.2292631-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2025-11-06 20:14:50 +00:00
committed by Andrew Morton
parent c537f0dd30
commit 20605eb5bb
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mm/memory_hotplug.c
View File

@@ -2327,7 +2327,7 @@ static int try_offline_memory_block(struct memory_block *mem, void *arg)
* by offlining code ... so we don't care about that.
*/
page = pfn_to_online_page(section_nr_to_pfn(mem->start_section_nr));
if (page && zone_idx(page_zone(page)) == ZONE_MOVABLE)
if (page && page_zonenum(page) == ZONE_MOVABLE)
online_type = MMOP_ONLINE_MOVABLE;
rc = device_offline(&mem->dev);