https://github.com/torvalds/linux
Revision e3df4c6e4836ce93cd5cf92d9cbdeaf4439a0241 authored by Michal Hocko on 01 February 2019, 22:21:12 UTC, committed by Linus Torvalds on 01 February 2019, 23:46:23 UTC
Jan has noticed that we do double unlock on some failure paths when
offlining a page range. This is indeed the case when
test_pages_in_a_zone respp. start_isolate_page_range fail. This was an
omission when forward porting the debugging patch from an older kernel.
Fix the issue by dropping mem_hotplug_done from the failure condition
and keeping the single unlock in the catch all failure path.
Link: http://lkml.kernel.org/r/20190115120307.22768-1-mhocko@kernel.org
Fixes: 7960509329c2 ("mm, memory_hotplug: print reason for the offlining failure")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 6376360
Tip revision: e3df4c6e4836ce93cd5cf92d9cbdeaf4439a0241 authored by Michal Hocko on 01 February 2019, 22:21:12 UTC
mm, memory_hotplug: __offline_pages fix wrong locking
mm, memory_hotplug: __offline_pages fix wrong locking
Tip revision: e3df4c6
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| README | -rw-r--r-- | 727 bytes |
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