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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-01-11 18:12:17 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-21 16:00:03 -0800 |
| commit | b46777da7d8d82258764da8e0b2273d8dff809d9 (patch) | |
| tree | be84ff29f936a92c742bbdb7a592c2c703600e3d /mm/memcontrol.c | |
| parent | b267e1a3e45fcc75fa1434d5c978b36624324e58 (diff) | |
| download | linux-b46777da7d8d82258764da8e0b2273d8dff809d9.tar.gz linux-b46777da7d8d82258764da8e0b2273d8dff809d9.tar.bz2 linux-b46777da7d8d82258764da8e0b2273d8dff809d9.zip | |
memcg: return the folio in union mc_target
All users of target.page convert it to the folio, so we can just return
the folio directly and save a few calls to compound_head().
Link: https://lkml.kernel.org/r/20240111181219.3462852-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index d1c1bd166307..f52cbc42359e 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5873,7 +5873,7 @@ static int mem_cgroup_do_precharge(unsigned long count) } union mc_target { - struct page *page; + struct folio *folio; swp_entry_t ent; }; @@ -6095,7 +6095,7 @@ out: * Return: * * MC_TARGET_NONE - If the pte is not a target for move charge. * * MC_TARGET_PAGE - If the page corresponding to this pte is a target for - * move charge. If @target is not NULL, the page is stored in target->page + * move charge. If @target is not NULL, the folio is stored in target->folio * with extra refcnt taken (Caller should release it). * * MC_TARGET_SWAP - If the swap entry corresponding to this pte is a * target for charge migration. If @target is not NULL, the entry is @@ -6160,7 +6160,7 @@ static enum mc_target_type get_mctgt_type(struct vm_area_struct *vma, is_device_coherent_page(page)) ret = MC_TARGET_DEVICE; if (target) - target->page = page; + target->folio = page_folio(page); } if (!ret || !target) { if (target) @@ -6210,7 +6210,7 @@ static enum mc_target_type get_mctgt_type_thp(struct vm_area_struct *vma, put_page(page); return MC_TARGET_NONE; } - target->page = page; + target->folio = page_folio(page); } } return ret; @@ -6440,7 +6440,7 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd, } target_type = get_mctgt_type_thp(vma, addr, *pmd, &target); if (target_type == MC_TARGET_PAGE) { - folio = page_folio(target.page); + folio = target.folio; if (folio_isolate_lru(folio)) { if (!mem_cgroup_move_account(folio, true, mc.from, mc.to)) { @@ -6452,7 +6452,7 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd, folio_unlock(folio); folio_put(folio); } else if (target_type == MC_TARGET_DEVICE) { - folio = page_folio(target.page); + folio = target.folio; if (!mem_cgroup_move_account(folio, true, mc.from, mc.to)) { mc.precharge -= HPAGE_PMD_NR; @@ -6482,7 +6482,7 @@ retry: device = true; fallthrough; case MC_TARGET_PAGE: - folio = page_folio(target.page); + folio = target.folio; /* * We can have a part of the split pmd here. Moving it * can be done but it would be too convoluted so simply |