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| author |   Miaohe Lin <linmiaohe@huawei.com> | 2022-06-25 17:28:13 +0800 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-07-03 18:08:51 -0700 |
| commit | 2f55f070e5b80f130f5b161931ca91ce9cb2e625 (patch) | |
| tree | 5d8fe137d61c4a2933e98cb383506977bce92703 /mm/memcontrol.c | |
| parent | mm/khugepaged: trivial typo and codestyle cleanup (diff) | |
| download | linux-rng-2f55f070e5b80f130f5b161931ca91ce9cb2e625.tar.xz linux-rng-2f55f070e5b80f130f5b161931ca91ce9cb2e625.zip | |
mm/khugepaged: minor cleanup for collapse_file
nr_none is always 0 for non-shmem case because the page can be read from
the backend store. So when nr_none ! = 0, it must be in is_shmem case.
Also only adjust the nrpages and uncharge shmem when nr_none != 0 to save
cpu cycles.
Link: https://lkml.kernel.org/r/20220625092816.4856-5-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: NeilBrown <neilb@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
0 files changed, 0 insertions, 0 deletions