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Wed, 20 Aug 2025 16:20:04 +0800 From: Quanmin Yan To: CC: , , , , , , Subject: [RFC PATCH mm-next v2 03/12] mm/damon/paddr: support addr_unit for DAMOS_PAGEOUT Date: Wed, 20 Aug 2025 16:06:13 +0800 Message-ID: <20250820080623.3799131-4-yanquanmin1@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250820080623.3799131-1-yanquanmin1@huawei.com> References: <20250820080623.3799131-1-yanquanmin1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.50.85.135] X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf200018.china.huawei.com (7.185.36.31) X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: D26F2180011 X-Stat-Signature: zjpy4c5aei4duz6uparemfti9x3qfx4z X-Rspam-User: X-HE-Tag: 1755678008-406283 X-HE-Meta: U2FsdGVkX1/9VtHlJr2bm/WICtjUOkZWIlsPC8GU3PidDHnT4doJTaRpXrd2SFNT6dAPIV7sLcsRkWD8RYuk+SmQXYj/3/DfK8JxwRr4WMAG7L3Rc8dh4Br3tk7ul8lzyUju7i2nEcDUIGnhMsinTDtTQSbl/kUvIpoZM+R4DsDEynxIKXa8/8tH5iId2DzvlyctWF5ShWh43Ot7yoMk69hxcUbdZ4QxrIPDZm9BjR4Mz3O9ULxr9NacCPyMH8Ndkve3Vi4tGqlBxXFczhazuQrhv/vtiFBJUXgT1S32piKu3jGBtUOqgfiQNTKZO0Cl6nU48UL9W/2WIYLg4jUzf8souZvdz3MzpfGUAJgQzm0Az4wvXlisVaUwi4JZxZYKlH5uAidaHsd/egFFAAIHLSbxQwwGpoWBAOVjMDsFbljtletJPkOUhYPYi26sFWm2YTlmatQrPKCghB08Cu3r9oUUFw/OTqtTbBaenSG5C4gsreV/hPeKmPVJCtS0K1ckkrsu2peaBEXGv1EqNqLlYXVNNHpMyx3OTEekrLMCxZinrqADWd5KV2M5arPMXNV+n9SJG4+YoUsKTm9fnJ6K29SilZauAcbFH/KRjqzl3JPvNQ+VEuvePmJ6oxvjzw9ENiUyPgkAmlKlN0NmhXqzVvjnmIyib1nkicaue4PjfdVcPqUd8bxGPrNuhUEUu1liIm/4QkT5aF72/61ZMla3x3G+i50hdbyy8UdSmJQzZfq4Lwsiv+vr1p4iZ8TIC+L1nYHnVPBdrLy+rf2BgvJDLSskxfKeVi33FK7+sP426OSP8pMFbHSrXDVpQl8SHuYcGtIzB8gfnyrC8gfsl8TJsNTN89ZN8UgnDJsz4TxApu2lAesQMsfUJRM4RhI1cNvLN7q9Blf9SquQplElhwSNocqYcmjhqCWkhCrVDBiPqadlQtmXpoIUgBMV83TXPQDDwHzPkNdaZtzfJpGuprI LUiOldaF Qn7YW X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: SeongJae Park Add support of addr_unit for DAMOS_PAGEOUT action handling from the DAMOS operation implementation for the physical address space. Signed-off-by: SeongJae Park Signed-off-by: Quanmin Yan --- mm/damon/paddr.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index d497373c2bd2..826c2064dbfd 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -135,10 +135,11 @@ static bool damon_pa_invalid_damos_folio(struct folio *folio, struct damos *s) return false; } -static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s, +static unsigned long damon_pa_pageout(struct damon_region *r, + unsigned long addr_unit, struct damos *s, unsigned long *sz_filter_passed) { - unsigned long addr, applied; + phys_addr_t addr, applied; LIST_HEAD(folio_list); bool install_young_filter = true; struct damos_filter *filter; @@ -159,8 +160,8 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s, damos_add_filter(s, filter); } - addr = r->ar.start; - while (addr < r->ar.end) { + addr = damon_pa_phys_addr(r->ar.start, addr_unit); + while (addr < damon_pa_phys_addr(r->ar.end, addr_unit)) { folio = damon_get_folio(PHYS_PFN(addr)); if (damon_pa_invalid_damos_folio(folio, s)) { addr += PAGE_SIZE; @@ -170,7 +171,7 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s, if (damos_pa_filter_out(s, folio)) goto put_folio; else - *sz_filter_passed += folio_size(folio); + *sz_filter_passed += folio_size(folio) / addr_unit; folio_clear_referenced(folio); folio_test_clear_young(folio); @@ -189,7 +190,7 @@ static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s, applied = reclaim_pages(&folio_list); cond_resched(); s->last_applied = folio; - return applied * PAGE_SIZE; + return applied * PAGE_SIZE / addr_unit; } static inline unsigned long damon_pa_mark_accessed_or_deactivate( @@ -302,9 +303,11 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t, struct damon_region *r, struct damos *scheme, unsigned long *sz_filter_passed) { + unsigned long aunit = ctx->addr_unit; + switch (scheme->action) { case DAMOS_PAGEOUT: - return damon_pa_pageout(r, scheme, sz_filter_passed); + return damon_pa_pageout(r, aunit, scheme, sz_filter_passed); case DAMOS_LRU_PRIO: return damon_pa_mark_accessed(r, scheme, sz_filter_passed); case DAMOS_LRU_DEPRIO: -- 2.43.0