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| author |   Wei Yang <richardw.yang@linux.intel.com> | 2020-01-30 22:11:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 10:30:36 -0800 |
| commit | dfe9aa23cab7880a794db9eb2d176c00ed064eb6 (patch) | |
| tree | d6b5ab803fedd943539fb64d4819f27edab41d31 /mm/memory_hotplug.c | |
| parent | mm/sparse.c: reset section's mem_map when fully deactivated (diff) | |
| download | linux-dev-dfe9aa23cab7880a794db9eb2d176c00ed064eb6.tar.xz linux-dev-dfe9aa23cab7880a794db9eb2d176c00ed064eb6.zip | |
mm/migrate.c: also overwrite error when it is bigger than zero
If we get here after successfully adding page to list, err would be 1 to
indicate the page is queued in the list.
Current code has two problems:
* on success, 0 is not returned
* on error, if add_page_for_migratioin() return 1, and the following err1
from do_move_pages_to_node() is set, the err1 is not returned since err
is 1
And these behaviors break the user interface.
Link: http://lkml.kernel.org/r/20200119065753.21694-1-richardw.yang@linux.intel.com
Fixes: e0153fc2c760 ("mm: move_pages: return valid node id in status if the page is already on the target node").
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions