diff options
| author | NeilBrown <neilb@suse.de> | 2022-05-10 03:20:49 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-05-10 03:20:49 +0200 |
| commit | 6341a446a0e66355d729b663d7c8ca28ad6d1442 (patch) | |
| tree | 4eba07afcfb4235b8dc4e11a2c3a2cca7b3fd9d8 /mm/page_io.c | |
| parent | mm: handle THP in swap_*page_fs() (diff) | |
| download | linux-6341a446a0e66355d729b663d7c8ca28ad6d1442.tar.xz linux-6341a446a0e66355d729b663d7c8ca28ad6d1442.zip | |
MM: handle THP in swap_*page_fs() - count_vm_events()
We need to use count_swpout_vm_event() for sio_write_complete() to get
correct counting.
Note that THP swap in (if it ever happens) is current accounted 1 for each
page, whether HUGE or normal. This is different from swap-out accounting.
This patch should be squashed into
MM: handle THP in swap_*page_fs()
Link: https://lkml.kernel.org/r/165146948934.24404.5909750610552745025@noble.neil.brown.name
Signed-off-by: NeilBrown <neilb@suse.de>
Reported-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_io.c')
| -rw-r--r-- | mm/page_io.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index d636a3531cad..1b8075ef3418 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -280,8 +280,10 @@ static void sio_write_complete(struct kiocb *iocb, long ret) set_page_dirty(page); ClearPageReclaim(page); } - } else - count_vm_events(PSWPOUT, sio->pages); + } else { + for (p = 0; p < sio->pages; p++) + count_swpout_vm_event(sio->bvec[p].bv_page); + } for (p = 0; p < sio->pages; p++) end_page_writeback(sio->bvec[p].bv_page); |