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| author |   Huang Ying <ying.huang@intel.com> | 2022-08-17 16:14:02 +0800 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 19:46:06 -0700 |
| commit | 9c62ff005fc774fb2ba14223b0d865a8aca48fb5 (patch) | |
| tree | df02a67fd5f4ae5edfb00c8a167ad630fdaafc3c /include/linux | |
| parent | migrate: fix syscall move_pages() return value for failure (diff) | |
| download | wireguard-linux-9c62ff005fc774fb2ba14223b0d865a8aca48fb5.tar.xz wireguard-linux-9c62ff005fc774fb2ba14223b0d865a8aca48fb5.zip | |
migrate_pages(): remove unnecessary list_safe_reset_next()
Before commit b5bade978e9b ("mm: migrate: fix the return value of
migrate_pages()"), the tail pages of THP will be put in the "from"
list directly. So one of the loop cursors (page2) needs to be reset,
as is done in try_split_thp() via list_safe_reset_next(). But after
the commit, the tail pages of THP will be put in a dedicated
list (thp_split_pages). That is, the "from" list will not be changed
during splitting. So, it's unnecessary to call list_safe_reset_next()
anymore.
This is a code cleanup, no functionality changes are expected.
Link: https://lkml.kernel.org/r/20220817081408.513338-3-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions