From: Shakeel Butt Date: Thu, 25 Dec 2025 23:21:16 +0000 (-0800) Subject: memcg: rename mem_cgroup_ino() to mem_cgroup_id() X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95296536eb19c969e91684287cf3bfcb382221d3;p=thirdparty%2Flinux.git memcg: rename mem_cgroup_ino() to mem_cgroup_id() Rename mem_cgroup_ino() to mem_cgroup_id() and mem_cgroup_get_from_ino() to mem_cgroup_get_from_id(). These functions now use cgroup IDs (from cgroup_id()) rather than inode numbers, so the names should reflect that. [shakeel.butt@linux.dev: replace ino with id, per SeongJae] Link: https://lkml.kernel.org/r/flkqanhyettp5uq22bjwg37rtmnpeg3mghznsylxcxxgaafpl4@nov2x7tagma7 [akpm@linux-foundation.org: build fix] Link: https://lkml.kernel.org/r/20251225232116.294540-9-shakeel.butt@linux.dev Signed-off-by: Shakeel Butt Acked-by: Michal Hocko Reviewed-by: SeongJae Park Cc: Axel Rasmussen Cc: Dave Chinner Cc: David Hildenbrand Cc: Johannes Weiner Cc: Lorenzo Stoakes Cc: Muchun Song Cc: Qi Zheng Cc: Roman Gushchin Cc: Wei Xu Cc: Yuanchu Xie Signed-off-by: Andrew Morton --- diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 3e7d69020b392..ed4764e1a30e3 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -830,12 +830,12 @@ static inline unsigned short mem_cgroup_private_id(struct mem_cgroup *memcg) } struct mem_cgroup *mem_cgroup_from_private_id(unsigned short id); -static inline u64 mem_cgroup_ino(struct mem_cgroup *memcg) +static inline u64 mem_cgroup_id(struct mem_cgroup *memcg) { return memcg ? cgroup_id(memcg->css.cgroup) : 0; } -struct mem_cgroup *mem_cgroup_get_from_ino(u64 ino); +struct mem_cgroup *mem_cgroup_get_from_id(u64 id); static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m) { @@ -1288,12 +1288,12 @@ static inline struct mem_cgroup *mem_cgroup_from_private_id(unsigned short id) return NULL; } -static inline u64 mem_cgroup_ino(struct mem_cgroup *memcg) +static inline u64 mem_cgroup_id(struct mem_cgroup *memcg) { return 0; } -static inline struct mem_cgroup *mem_cgroup_get_from_ino(u64 ino) +static inline struct mem_cgroup *mem_cgroup_get_from_id(u64 id) { return NULL; } diff --git a/mm/damon/core.c b/mm/damon/core.c index 3edbff685534d..6888917c1a00f 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -2094,7 +2094,7 @@ static unsigned long damos_get_node_memcg_used_bp( unsigned long used_pages, numerator; struct sysinfo i; - memcg = mem_cgroup_get_from_ino(goal->memcg_id); + memcg = mem_cgroup_get_from_id(goal->memcg_id); if (!memcg) { if (goal->metric == DAMOS_QUOTA_NODE_MEMCG_USED_BP) return 0; diff --git a/mm/damon/ops-common.c b/mm/damon/ops-common.c index dd81db95f9011..a218d99222342 100644 --- a/mm/damon/ops-common.c +++ b/mm/damon/ops-common.c @@ -274,7 +274,7 @@ bool damos_folio_filter_match(struct damos_filter *filter, struct folio *folio) if (!memcg) matched = false; else - matched = filter->memcg_id == mem_cgroup_ino(memcg); + matched = filter->memcg_id == mem_cgroup_id(memcg); rcu_read_unlock(); break; case DAMOS_FILTER_TYPE_YOUNG: diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 6125f259eceab..419d6e7ee945c 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -2513,7 +2513,7 @@ static int damon_sysfs_memcg_path_to_id(char *memcg_path, u64 *id) if (!mem_cgroup_online(memcg)) continue; if (damon_sysfs_memcg_path_eq(memcg, path, memcg_path)) { - *id = mem_cgroup_ino(memcg); + *id = mem_cgroup_id(memcg); found = true; break; } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ede39dde05df9..7d6cf47e6d4cb 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3615,13 +3615,13 @@ struct mem_cgroup *mem_cgroup_from_private_id(unsigned short id) return xa_load(&mem_cgroup_private_ids, id); } -struct mem_cgroup *mem_cgroup_get_from_ino(u64 ino) +struct mem_cgroup *mem_cgroup_get_from_id(u64 id) { struct cgroup *cgrp; struct cgroup_subsys_state *css; struct mem_cgroup *memcg = NULL; - cgrp = cgroup_get_from_id(ino); + cgrp = cgroup_get_from_id(id); if (IS_ERR(cgrp)) return NULL; diff --git a/mm/shrinker_debug.c b/mm/shrinker_debug.c index 7ef16a0b2959d..affa644373021 100644 --- a/mm/shrinker_debug.c +++ b/mm/shrinker_debug.c @@ -70,7 +70,7 @@ static int shrinker_debugfs_count_show(struct seq_file *m, void *v) memcg_aware ? memcg : NULL, count_per_node); if (total) { - seq_printf(m, "%llu", mem_cgroup_ino(memcg)); + seq_printf(m, "%llu", mem_cgroup_id(memcg)); for_each_node(nid) seq_printf(m, " %lu", count_per_node[nid]); seq_putc(m, '\n'); @@ -107,7 +107,7 @@ static ssize_t shrinker_debugfs_scan_write(struct file *file, { struct shrinker *shrinker = file->private_data; unsigned long nr_to_scan = 0, read_len; - u64 ino; + u64 id; struct shrink_control sc = { .gfp_mask = GFP_KERNEL, }; @@ -120,7 +120,7 @@ static ssize_t shrinker_debugfs_scan_write(struct file *file, return -EFAULT; kbuf[read_len] = '\0'; - if (sscanf(kbuf, "%llu %d %lu", &ino, &nid, &nr_to_scan) != 3) + if (sscanf(kbuf, "%llu %d %lu", &id, &nid, &nr_to_scan) != 3) return -EINVAL; if (nid < 0 || nid >= nr_node_ids) @@ -130,7 +130,7 @@ static ssize_t shrinker_debugfs_scan_write(struct file *file, return size; if (shrinker->flags & SHRINKER_MEMCG_AWARE) { - memcg = mem_cgroup_get_from_ino(ino); + memcg = mem_cgroup_get_from_id(id); if (!memcg) return -ENOENT; @@ -138,7 +138,7 @@ static ssize_t shrinker_debugfs_scan_write(struct file *file, mem_cgroup_put(memcg); return -ENOENT; } - } else if (ino != 0) { + } else if (id != 0) { return -EINVAL; } diff --git a/mm/vmscan.c b/mm/vmscan.c index b87baf3fc77f2..4aa47ab000c2f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5416,7 +5416,7 @@ static int lru_gen_seq_show(struct seq_file *m, void *v) if (memcg) cgroup_path(memcg->css.cgroup, m->private, PATH_MAX); #endif - seq_printf(m, "memcg %llu %s\n", mem_cgroup_ino(memcg), path); + seq_printf(m, "memcg %llu %s\n", mem_cgroup_id(memcg), path); } seq_printf(m, " node %5d\n", nid); @@ -5512,12 +5512,12 @@ static int run_cmd(char cmd, u64 memcg_id, int nid, unsigned long seq, return -EINVAL; if (!mem_cgroup_disabled()) { - memcg = mem_cgroup_get_from_ino(memcg_id); + memcg = mem_cgroup_get_from_id(memcg_id); if (!memcg) return -EINVAL; } - if (memcg_id != mem_cgroup_ino(memcg)) + if (memcg_id != mem_cgroup_id(memcg)) goto done; sc->target_mem_cgroup = memcg;