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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , open list , "open list:MEMORY MANAGEMENT - CORE" Cc: jyescas@google.com, android-mm@google.com, fvdl@google.com, tkjos@google.com, minchan@google.com, dskiba@google.com, open list , "open list:MEMORY MANAGEMENT - CORE" Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 9BD30C000B X-Stat-Signature: fzns3k3gp5pe38pcny36rnkdmu5xb8n1 X-HE-Tag: 1784793005-17954 X-HE-Meta: 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 Rl9eqO62 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This change creates a directory for each page order inside the zone directory. Signed-off-by: Juan Yescas --- mm/page_alloc_hogger.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/mm/page_alloc_hogger.c b/mm/page_alloc_hogger.c index 1cec9ec5e35e..de86b8526338 100644 --- a/mm/page_alloc_hogger.c +++ b/mm/page_alloc_hogger.c @@ -127,6 +127,28 @@ struct page_alloc { struct kmem_cache *req_alloc_cache; struct kmem_cache *page_alloc_cache; +/** + * create_page_orders_subdirs() - Creates a directory for each page order inside + * the zone directory. Once that the page order directory is created, it creates + * a directory for each migrate type. + */ +static inline int create_page_orders_subdirs(struct dentry *zonedir, + int node_idx, int zone_idx, + struct zone *zone) +{ + struct dentry *orderdir; + char dirname[12]; + + for (int order = 0; order < NR_PAGE_ORDERS; order++) { + snprintf(dirname, sizeof(dirname), "order-%d", order); + orderdir = debugfs_create_dir(dirname, zonedir); + if (IS_ERR(orderdir)) + return PTR_ERR(orderdir); + } + + return 0; +} + /** * create_zones_subdirs() - Creates a directory for each populated zone in the * node. Once that the zone directory is created, it creates a directory for @@ -143,6 +165,7 @@ static inline int create_zones_subdirs(struct dentry *nodedir, int node_idx, struct zone *node_zones = pgdata->node_zones; int zone_idx; char dirname[24]; + int ret; for (zone = node_zones, zone_idx = 0; zone - node_zones < MAX_NR_ZONES; ++zone, ++zone_idx) { @@ -157,6 +180,11 @@ static inline int create_zones_subdirs(struct dentry *nodedir, int node_idx, zonedir = debugfs_create_dir(dirname, nodedir); if (IS_ERR(zonedir)) return PTR_ERR(zonedir); + + ret = create_page_orders_subdirs(zonedir, node_idx, zone_idx, + zone); + if (ret) + return ret; } return 0; -- 2.55.0.229.g6434b31f56-goog